Consulta: subjectFacets:"Exploitation"
Registros recuperados: 62
Data/hora: 10/06/2024 06:40:02

Resource degradation, marginalization, and poverty in small-scale fisheries: threats to social-ecological resilience in India and Brazil
Provedor de dados: 7
Autores: Nayak, Prateep K.; Faculty of Environment, University of Waterloo; pnayak@uwaterloo.ca; Oliveira, Luiz E.; Natural Resources Institute, University of Manitoba; oliveira_lec@yahoo.com.br; Berkes, Fikret; Natural Resources Institute, University of Manitoba; Fikret.Berkes@ad.umanitoba.ca.
Tipo: Peer-Reviewed Reports
Palavras-chave: Brazil; Degradation; Disempowerment; Exclusion; Exploitation; Fisheries; Human-environment disconnect; Identity; Impoverishment; India; Marginalization; Poverty; Resilience; Small-scale fishery; Social-ecological system.
Ano: 2014

Indicators for wild animal offtake: methods and case study for African mammals and birds
Provedor de dados: 7
Autores: Ingram, Daniel J.; School of Life Sciences, University of Sussex; D.Ingram@sussex.ac.uk; Coad, Lauren; Environmental Change Institute, University of Oxford; United Nations Environment Programme World Conservation Monitoring Centre; lauren.coad@ouce.ox.ac.uk; Collen, Ben; Centre for Biodiversity &amp;#38; Environment Research, University College London; b.collen@ucl.ac.uk; Breuer, Thomas; Global Conservation Program, Wildlife Conservation Society; tbreuer@wcs.org; Fa, John E.; Division of Biology and Conservation Ecology, School of Science and the Environment, Manchester Metropolitan University; Center for International Forestry Research; jfa949@gmail.com; Gill, David J. C.; Fauna &amp;#38; Flora International; david.gill@fauna-flora.org; Maisels, Fiona; Global Conservation Program, Wildlife Conservation Society; African Forest Ecology Group, School of Natural Sciences, University of Stirling; fmaisels@wcs.org; Schleicher, Judith; Department of Geography, University of Cambridge; js525@cam.ac.uk; Stokes, Emma J.; Global Conservation Program, Wildlife Conservation Society; estokes@wcs.org; Taylor, Gemma; Centre for Biodiversity &amp;#38; Environment Research, University College London; Institute of Zoology, Zoological Society of London; gemma.taylor@ioz.ac.uk.
Unsustainable exploitation of wild animals is one of the greatest threats to biodiversity and to millions of people depending on wild meat for food and income. The international conservation and development community has committed to implementing plans for sustainable use of natural resources and has requested development of monitoring systems of bushmeat offtake and trade. Although offtake monitoring systems and indicators for marine species are more developed, information on harvesting terrestrial species is limited. Building on approaches developed to monitor exploitation of fisheries and population trends, we have proposed two novel indicators for harvested terrestrial species: the mean body mass indicator (MBMI) assessing whether hunters are relying...
Tipo: Peer-Reviewed Reports
Palavras-chave: Africa; Bushmeat; Exploitation; Harvest; Indicator.
Ano: 2015

Evaluation of protein extraction methods to obtain protein concentrate from cassava leaf
Provedor de dados: 70
Autores: Coldebella,Priscila F.; Gomes,Simone D.; Evarini,Janete A.; Cereda,Marney P.; Coelho,Sílvia R. M.; Coldebella,Anderson.
The cassava leaf, waste generated in the harvest of the roots, is characterized by high content of protein, vitamins and minerals; however, its use is limited due to the high fiber content and antinutritional substances, which can be removed by obtaining protein concentrates. In this context, the objective of this study was to evaluate protein extraction processes, aiming the use of cassava leaves (Manihot esculenta Crantz) as an alternative protein. Four methods were tested: 1) Coagulation of Proteins by Lowering the Temperature, 2) Extraction by Isoelectric Precipitation, 3) Solubilization of Proteins and 4) Fermentation of Filter Leaf Juice. To obtain the concentrates, the use of fresh or dried leaves and extraction in one or two steps were also...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exploitation; Agricultural waste; Protein extraction.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162013000600015

Exploração mecanizada da floresta tropical úmida sem babaçu.
Provedor de dados: 14
Autores: COSTA FILHO, P. P.; COSTA, H. B. da; AGUIAR, O. R. de.
bitstream/item/33767/1/CPATU-CirTec9.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Exploracao; Floresta Nacional do Tapajos; Pará; Brasil; Management; Exploitation; Tools; Cost; Economy.; Custo; Economia; Equipamento; Manejo; Mão-de-Obra; Mecanização.; Amazonia; Labor force; Mechanization.
Ano: 1980
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/378284

Pesquisas florestais da EMBRAPA na região Amazônica.
Provedor de dados: 14
Autores: SILVA, J. N. M.; CARPANEZZI, A. A.; COSTA, H. B. da; CARVALHO, J. O. P. de; LOPES, J. do C. A.; YARED, J. A. G.; MARQUES, L. C. T.; KANASHIRO, M.; VIANNA, N. G.; COSTA FILHO, P. P.; BRIENZA JUNIOR, S.
bitstream/item/50351/1/documentos130001.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Exploração; Melhoramento genético; Sistema agroflorestal; Brasil; Forest; Exploitation; Management; Genetic; Agroforesty system.; Ecologia; Floresta; Manejo; Pesquisa.; Amazonia; Ecology; Breeding; Research.
Ano: 1982
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/381407

Populations ichtyologiques de grands pélagiques. Sous-région marine Manche - Mer du Nord. Evaluation initiale DCSMM.
Provedor de dados: 5
Autores: Fromentin, Jean-marc; Bonhommeau, Sylvain.
Tipo: Text
Palavras-chave: Manche; Mer du Nord; Grands poissons pélagiques; Biocénose; Exploitation; Etat des stocks.
Ano: 2012
URL: https://archimer.ifremer.fr/doc/00327/43844/43418.pdf

La dynamique des pêches côtières du pays bigouden
Provedor de dados: 5
Autores: Charuau, Anatole.
In the beginning, the coastal fleet of the Bigouden region fished by trawling and was completely focused on exploiting lobster and hake. It is a traditional business that expanded between the last war and the 70s, reaching its peak between 1975 and 1980.  The best image to give an idea of this fleet is that of a "bucket waterwheel" endlessly discharging its catch in the four ports of the Guilvinec district. Where there is a seafaring business in Guilvinec, Loctudy and Saint-Guénolé, there is a complementarity that is expressed in two ways: - coastal fishing constitutes a very noticeable and regular supplement to production, since sales happen daily and only bad winter weather causes a relative decrease in the supplement. - coastal fishing gives a...
Tipo: Text
Palavras-chave: France; Brittany; Data; Fishing zone; Fleet; Trawling; Commercial species; Costal fisheries; Finistere; Bretagne; Atlantique Nord Est; Golfe de Gascogne; Merluccius; Lophius; Pisces; Nephrops Norvegicus; Zone peche; Exploitation; Flottille; Chalut; Donnee; Espece commerciale; Peche cotiere.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/rapport-2202.pdf

Les pêcheries françaises de Méditerranée. Synthèse des connaissances
Provedor de dados: 5
Autores: Campillo, Albert.
This document presents information about the bottom nature and hydrodynamic features of the coast off French Mediterranean sea. The economic importance of fisheries concerning divers areas and different aspects of the fleet dynamics are also tachled. The background of this study is the knowledge of the principal marine species exploited in the area (60 species of fish, 5 of shellfish, 8 of mollusca, one of echinoderma and one of Octocorallia). The species index includes biological information and exploitation date. A reference list is proposed for each species.
Tipo: Text
Palavras-chave: SEM; Aménagement; Exploitation; Distribution; Abondance relative; Biologie; Flottille; Economie; Management; Exploitation; Distribution; Abundance; Biology relative; Fleet; Economy.
Ano: 1993
URL: https://archimer.ifremer.fr/doc/00393/50468/51203.pdf

Synthèse des connaissances sur les impacts des câbles électriques sous-marins: Phases de travaux et d'exploitation. Etude du compartiment benthique et des ressources halieutiques
Provedor de dados: 5
Autores: Carlier, Antoine; Vogel, Camille; Alemany, Juliette.
Cette synthèse bibliographique, financée par RTE, traite de l’impact potentiel des câbles électriques sous-marins sur différentes composantes des écosystèmes marins côtiers susceptibles d’accueillir des projets de liaisons électriques en mer. Elle constitue une actualisation d’un précédent état de l’art réalisé sur la même problématique par l’Ifremer en 2011, déjà à la demande de RTE. Ce rapport traite successivement des différents types de perturbations que peut engendrer un projet de câble sous-marin, pendant les phases de travaux (pose, maintenance) et d’exploitation, en distinguant ce qui relève des changements des paramètres physico-chimiques du milieu (ce que l’on désigne ici par effets) de ce qui relève des changements de la biodiversité et des...
Tipo: Text
Palavras-chave: Câbles sous-marins; Impacts; Travaux; Exploitation; Écosystèmes côtiers; Habitats benthiques; Ressources halieutiques; Bruit; Température; Champs électromagnétiques; Effet récif; Effet réserve; Impact cumulés.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00508/61975/66078.pdf

Biologie et exploitation de l'araignée de mer Maja squinado Herbst en Manche Ouest
Provedor de dados: 5
Autores: Le Foll, Didier.
The aim of this work, which was done as a Doctorate of Philosophy (Phd), was to collect the information necessary to help improve the management of the western Channel spider crab stock. The fîrst section présents the main aspects of spider crab population biology. As well as contributing our own results on spider crab habitat, stock density, démographie structure, growth and mortality estimâtes, migrations, reproduction and recruitment, a synthesis is included of the existing scientific literature. The second section on exploitation covers various features of the fishery : its history, fishing methods, fleet structure, spatial and seasonal distribution of fishing efforts in 1986, trends in the landings, fishing effort and catch per unit effort,...
Tipo: Text
Palavras-chave: Exploitation; Biologie; Manche; Maja squinado; Araignée; Exploitation; Biology; English Channel; Maja squinado; Spider crab.
Ano: 1993
URL: https://archimer.ifremer.fr/doc/1993/rapport-638.pdf

Valorisation des algues et autres végétaux aquatiques
Provedor de dados: 5
Autores: Delepine, René; Gaillard, René; Morand, Philippe.
This volume about "Valorisation des algues et autres végétaux aquatiques" is being published when studies are developping on natural environment protection and economical management for water and aquatic resources. It should help in setting up development strategies for exploitation of seaweeds as well as freshwater plants. This work is helpful to many readers and more particularly to : researchers, industrials, responsibles of research units or technical associations, teachers of various academic levels, all classes of dec is ion-makers, students. It will give them food for thought and bring many references about people already committed in these fields.
Tipo: Text
Palavras-chave: Economy; Exploitation; Fresh water plants; Seaweed; Economie; Exploitation; Végétaux  d'eau douce; Algue.
Ano: 1988
URL: http://archimer.ifremer.fr/doc/1988/rapport-1666.pdf

Marine crustacean farming: present status and perspectives
Provedor de dados: 5
Autores: Laubier, Annie; Laubier, Lucien.
For centuries, several species of prawns and crabs have been raised from wild-caught juveniles in coastal brackish-water fish ponds in various countries of south east Asia. The Indonesian "tambaks" are well known examples of such traditional practices. In western countries, since the turn of the century, advances of marine biology and fast increase of marine fisheries enabled the development of large-scale production and release of larval stages of American and European lobsters in a fruitless attempt to restock natural populations. After the Second World War, the increasing demand for crustaceans in United States and Japan was satisfied by opening new prawn fisheries all over the world. A major breakthrough was achieved with the development of hatchery...
Tipo: Text
Palavras-chave: Crustacés; Crevettes; Crabes; Homards; Aquaculture; Exploitation; Penaeidae; Crustaceans; Shrimps; Prawns; Crabs; Lobsters; Aquaculture; Exploitation; Penaeidae.
Ano: 1993
URL: http://archimer.ifremer.fr/doc/00190/30119/28587.pdf

Guide méthodologique pour l'élaboration des dossiers de demande d'autorisation d'Installations Classées pour la Protection de l'Environnement (ICPE) en matière de pisciculture marine pour la région Corse - 2003
Provedor de dados: 5
Autores: Roque D'Orbcastel, Emmanuelle.
Les piscicultures marines de plus de 20 t/an de production sont soumises en France à l’obtention de deux autorisations d’exploiter : (i) celle au titre des Cultures Marines (AECM), visant à s’assurer que le site concédé et l’usage du domaine public maritime pour l’exploitation permettent de respecter l’ensemble des contraintes d’intérêt général ; (ii) celle au titre de la réglementation des Installations Classées pour la Protection de l’Environnement (ICPE). Si la première nécessite un dossier de demande d’autorisation relativement simple, la seconde requiert un dossier très complet, qui comprend, outre une notice de renseignementssur l’exploitation, une étude d’impact complète, ainsi qu’une étude des dangers et une notice d’hygiène et de sécurité. Dans ce...
Tipo: Text
Palavras-chave: Guide méthodologique; Installations Classées pour la Protection de l’Environnement (ICPE); Corse; Pisciculture marine; Demandeur; Exploitation; Étude d’impact; Impacts potentiels; Rejets; Étude de dangers; Cahier des charges.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/00223/33469/31873.pdf

L'élevage de la crevette tropicale d'eau douce
Provedor de dados: 5
Autores: Griessinger, Jean-michel; Lacroix, Denis; Gondouin, Philippe.
This book represents a two year study by a team of French biologists to collect, summarise and present the experience and knowledge gained in the rearing of the giant freshwater prawn, not only in the French overseas territories but also in the main countries which are developing this culture. This document comprises four parts :  - The first describes the world market. The prawn rearing is already an economic reality in the tropical world, the United States and in Europe. -  The second on shows that, although the culture techniques are quite complex, production systems can be adapted to local conditions and markets. - The third part is a practical guide, both for investors and farmers, giving all necessary data to start-up and monitor a project in the...
Tipo: Text
Palavras-chave: World market; Tropical zone; Practical guide; Production  systems; Biology; Prawn rearing; Crevette tropicale d'eau douce; Exploitation; Production; Biologie; Macrobrachium rosenbergii; Guide pratique; Aquaculture.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/rapport-639.pdf

Etude bathymetrique et sedimentologique des etangs de Diane et d'Urbino en Corse.
Provedor de dados: 5
Autores: Longere, Paul; Dorel, Didier; Marin, Jean.
2 ponds (or lagoon) were studied in order to establish the economic possibilities of their exploitation for oysters. Bathymetric and sediment maps were produced using methods described. They indicate a morphological similarity between the ponds, with a superficial broken bed and a regular, flat or gently sloping bed beyond 7 m, the general form reflecting the aerial relief of the adjacent `coast'. The deeper regions had mud or clay sediment, while the edges of the ponds were covered with sand. In more detailed studies it was evident that the banks of Diane were more regular and steep than those of Urbino, and that only in the latter was there a good relationship between the depth of water and the carbon/nitrogen ratio. Differences are thought to relate to...
Tipo: Text
Palavras-chave: Corsica; Studies; Exploitation; Oysters; Sedimentologic; Bathymetric.
Ano: 1972
URL: http://archimer.ifremer.fr/doc/1972/publication-2068.pdf

Bilan du suivi de l'exploitation industrielle de la crépidule en Bretagne Nord (baies de Saint-Brieuc et du Mont Saint-Michel) 2002-2005
Provedor de dados: 5
Autores: Blanchard, Michel; Hamon, Dominique.
The slipper-limpet (Crepidula fornicata) is a marine gastropod which causes serious perturbations in shellfish beds, because of spatial spreading and density rising. Along French coasts, in Northern Brittany, two bays are highly colonized : bay of Saint-Brieuc, centre for scallops fishery, and bay of Mont-Saint-Michel, a famous oyster-farming area, with a total limpet stock about 450 000 metric tons. The association AREVAL was founded in 2001 to manage there, an industrial collect of limpets by a succing-dredge, followed ashore by a treatment for calcareous soil improvement. The scientific survey, contracted to IFREMER, included measurements of long andshort-term dredge's effects on grounds and limpet population, and proposals to set up dredging...
Tipo: Text
Palavras-chave: France; Western Channel; Bay of Mont Saint Michel; Bay of Saint Brieuc; Impact; Dredging; Treatment; Crepidula fornicata; Slipper limpet; Manche Ouest; Baie du Mont Saint Michel; Baie de Saint Brieuc; Impact; Dragage; Exploitation; Crepidula fornicata; Crépidule.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/rapport-6301.pdf

Ecosystem approach to fisheries: a brief overview and some considerations for its application in ICCAT
Provedor de dados: 5
Autores: Fromentin, Jean-marc; Fonteneau, Alain; Restrepo, Victor.
During the last SCRS plenary meeting, the sub-committee on environment suggested to present a document on the ‘Ecosystem Approach to Fisheries’ (EAF). This document firstly recalls the general scientific and institutional background of EAF, then we propose a synoptic view of EAF, including four main domains: governance, exploitation, resources and impacts on ecosystems. The way that EAF is tackled within the various tuna commissions is then summarised. Finally, we rapidly examine the way the SCRS could cope with EAF issues and we suggest to merge the sub-committee on environment with this on by-catch into a single subcommittee on ecosystem.
Tipo: Text
Palavras-chave: Ecosystem; Resources; Exploitation; Governance; Environment; By-catch.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/00192/30334/28809.pdf

Les pêcheries françaises de Méditerranée. Synthèse des connaissances
Provedor de dados: 5
Autores: Campillo, Albert.
This document presents information about the bottom nature and hydrodynamic features of the coast off French Mediterranean sea. The economic importance of fisheries concerning divers areas and different aspects of the fleet dynamics are also tachled. The background of this study is the knowledge of the principal marine species exploited in the area (60 species of fish, 5 of shellfish, 8 of mollusca, one of echinoderma and one of Octocorallia). The species index includes biological information and exploitation date. A reference list is proposed for each species.
Tipo: Text
Palavras-chave: Économie; Flotille; Biologie; Abondance relative; Distribution; Exploitation; Amenagement; Economy; Fleet; Biology relative; Abundance; Distribution; Exploitation; Management.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/00393/50467/51202.pdf

Populations ichtyologiques des grands pélagiques. Sous-région marine Méditerranée occidentale. Evaluation initiale DCSMM.
Provedor de dados: 5
Autores: Fromentin, Jean-marc; Bonhommeau, Sylvain.
Tipo: Text
Palavras-chave: Méditerranée; Grands poissons pélagiques; Biocénose; Exploitation; Etat des stocks.
Ano: 2012
URL: https://archimer.ifremer.fr/doc/00331/44213/43782.pdf

Nouvelles perspectives dans l'exploitation des laminaires
Provedor de dados: 5
Autores: Braud, Jean-paul; Debroise, Reginald; Perez, René.
Tipo: Text
Palavras-chave: Alginate; Demineralization; Exploitation; Seaweed; Laminaria.
Ano: 1977
URL: http://archimer.ifremer.fr/doc/1977/publication-1967.pdf

Ressources halieutiques d'interet potentiel pour la peche industrielle et la grande peche française
Provedor de dados: 5
Autores: Abbes, Rene.
This document takes stock of our knowledge on the exploitation, biology, the dynamics of the populations, the inventory position and possibilities of valorization of species not exploited traditionally by the fleets industrial and of great French fishing, but being of potential interest for them.  Thus, twelve groups of species, or species, following are analyzed: - deep selacians - the sardine  - large Argentina   - pomegranates   - the silver plated hake  - the blue whiting  - fish of Kerguelen  - the chinchard  - the black sabre  - the halibut of Greenland  - squids
Tipo: Text
Palavras-chave: Inventory positions; Biology; Exploitation; Species industrial halieutic; Etats des stocks; Biologie; Exploitation; Espèce halieutique industrielle.
Ano: 1990
URL: http://archimer.ifremer.fr/doc/1990/rapport-1585.pdf

Le merlu europeen (Merluccius merluccius L.). Bilan des connaissances biologiques. Evolution de l'exploitation. Evaluations des stocks et mesures de gestion
Provedor de dados: 5
Autores: Guichet, Roger.
European hake is one of the most important commercial species of the North East Atlantic. Its biology is quite well known in spite of age reading problems. This report provides a review of the state of knowledge based on updated data, specially for parameters used in the working groups in charge of stocks assessments. The fisheries for hake are essentially sequential. In recent years fishing mortalities have been moderate and the over exploitation of the stocks is due to the excessive catches of young fish and to the fishing pattern of some fleets. The result of this inappropriate exploitation pattern is dangerous with a decrease of the spawning stock biomass and recrutrnent for the two stocks.
Tipo: Text
Palavras-chave: Merlu; Nord Est Atlantique; Biologie; Exploitation; Gestion; Hake; North East Atlantic; Biology; Fisheries; Management.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00422/53327/54169.pdf

Exploring the abundance-occupancy relationships for the Georges Bank finfish and shellfish community from 1963 to 2006
Provedor de dados: 5
Autores: Frisk, Michael G.; Duplisea, Daniel E.; Trenkel, Verena.
Abundance-occupancy (A-O) patterns were explored temporally and spatially for the Georges Bank finfish and shellfish community to evaluate long-term trends in the assemblage structure and to identify anthropogenic and environmental drivers impacting the ecosystem. Analyses were conducted for 32 species representing the assemblage from 1963 to 2006 using data from the National Marine Fisheries Service's annual autumn bottom trawl survey. For individual species, occupancy was considered the proportion of stations with at least one individual present, and abundance was estimated as the mean annual number of fish captured per station. Intraspecific relationships were estimated to provide information on utilization of space by a species. Multispecies...
Tipo: Text
Palavras-chave: Abundance-occupancy relationships; Commercial catchability; Community ecology; Exploitation; Finfish; Fishing; Georges Bank; Habitat fragmentation; Hyperstability; Resilience; Shellfish.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00033/14397/14043.pdf

Evolution d'un gisement de Cardium edule lmk dans le Bassin d'Arcachon.
Provedor de dados: 5
Autores: Deltreil, Jean-pierre; His, Edouard.
This paper traces the development of a new bed of cockles (C. edule) in the Bassin d'Arcachon, France. Details of the basin, numbers of cockles at various times of the year, growth, fishery and competition with mytilus edulis are considered under general headings and results are presented graphically: Main Shore Beds, March 1968 to March 1969; Development of the beds over that year; The Lagoon Bed, April 1969 to April 1970. Discussion relates to possible survival and exploitation of the beds.
Tipo: Text
Palavras-chave: Exploitation; Cardium edule; Bassin d'Arcachon; Cardium.
Ano: 1972
URL: http://archimer.ifremer.fr/doc/1972/publication-2054.pdf

De la biodiversité aux biotechnologies bleues : la caractérisation et l'exploitation des ressources marines sont-elles compatibles?
Provedor de dados: 5
Autores: Goulletquer, Philippe.
L’exploitation de la biodiversité marine, notamment via les biotechnologies, offre un réel potentiel de valorisation comme le démontre l'accélération des dépôts de brevets utilisant des substances actives marines. Ce point est renforcé par les particularités uniques de la biodiversité marine. Le défi à l’heure actuelle est de définir les conditions d’exploitation durable dans un contexte de connaissances limitées des écosystèmes concernés. Si les activités actuelles tendent à privilégier la préservation de l’environnement marin, le développement de connaissances et la levée de verrous technologiques permettront probablement à l’avenir d’identifier les ressources d’intérêt puis de les exploiter par des approches industrielles innovantes (e.g.,...
Tipo: Text
Palavras-chave: Biodiversité; Ressources Marines; Biodiversité marine; Biotechnologies; Gestion; Exploitation.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00099/20987/18613.pdf

Combined effects of exploitation and temperature on fish stocks in the Northeast Atlantic
Provedor de dados: 5
Autores: Rouyer, Tristan; Fromentin, Jean-marc; Hidalgo, Manuel; Stenseth, Nils C.
Fish stock fluctuations are affected by two potentially confounding forces: the removal of individuals by fisheries and climatic variations affecting the productivity of fish populations. Disentangling the relative importance of these forces has thus been a question of primary importance for fisheries management and conservation. Through the analysis of long-term time-series for 27 fish stocks from the Northeast Atlantic, the present study shows that the sign and intensity of the effect of temperature on biomass are dependent on the geographical location: the stocks located at the southernmost and northernmost latitudes of our study displayed stronger associations with temperature than the stocks located in the middle range of latitudes. As a consequence,...
Tipo: Text
Palavras-chave: Combined climate/exploitation effect; Exploitation; Fish stocks; Northeast Atlantic; Response to climate; Time-series.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00230/34107/32821.pdf

Guide méthodologique pour l'élaboration des dossiers de demande d'autorisation d'Installations Classées pour la Protection de l'Environnement (ICPE) en matière de pisciculture marine pour la région Corse
Provedor de dados: 5
Autores: Roque D'Orbcastel, Emmanuelle; Sauzade, Didier; Ravoux, Georges; Coves, Denis.
Sea fish farms with production of more than 20 tons per year in France must obtain two operating licences: (i) one for Sea Farming (AECM), with the aim of ensuring that the granted site and use of the maritime public domain for exploitation will respect all restrictions of general interest; (ii) one for regulating Facilities Classified for the Protection of the Environment (ICPE). Although the first one requires a relatively simple licence request file, the second one demands a very complete file, which includes, beyond the notice of exploitation information, a complete impact study, as well as a hazards study and a health and safety notice. In this context, petitioners in Corsica (adjustment of status or new exploitation) are faced with the same...
Tipo: Text
Palavras-chave: Specifications; Study of dangers; Effluent; Potential impact; Impact survey; Exploitation; Demand; Marine fish culture; Corsica; Classified installations for the environment protection (CIEP); Methodological guide; Cahier des charges; Etude de dangers; Rejets; Impacts potentiels; Etude d'impact; Exploitation; Demandeur; Pisciculture marine; Corse; Installations Classées pour la Protection de l'Environnement (ICPE); Guide méthodologique.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/rapport-2188.pdf

Analyse des pratiques technico-économiques et rationalités des pêcheurs de pertuis charentais
Provedor de dados: 5
Autores: Tachoires, Stéphanie.
ln the Pertuis charentais shallow area, located between the mainland and the Ré and Oléron islands, marin space is in dispute between the severals stakeholders. The fishing in this area is permitted by a licencing policy and is strongly affected by the space competition. lts future is also uncertain because of the state of the fishing stocks, the new regulations which must be implemented. Given this context, this study aims to assess the evolution and adaptation abilities of the exploitation system in the Pertuis charentais facing the change of the socio-technic context. On board and at port, surveys were carried out. The fishing fleet is made up of old boats, but the fishing is attractive for the fishermen. The enterprise logic functioning as studied and...
Tipo: Text
Palavras-chave: Petite pêche; Pertuis charentais; Système; Exploitation; Potentialité d'évolution.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/00448/55951/57430.pdf

Biological sampling of non-quota species.
Provedor de dados: 5
Autores: Dunn, M. R.; Rogers, S. I.; Morizur, Yvon; Tetard, Alain; Aublet, B; Le Niliot, Ph; Miossec, Dominique.
The objective of this study was to develop an effective biological sampling programme for fish species in the English Channel (ICES Divisions Vild and Vile) which are not subject to quota management, and to prepare these data for use in multispecies, multi-fleet models being developed by the Channel Fisheries Study Group. Length and age data were coIlected for six non-quota species, and length data for a further five species. The samples were coIlected over a period of two years from important ports on the French and UK coasts. The exploitation patterns of each species were described by allocating catches from similar catching gears, regions, seasons and target species into common units referred to as métiers. The most important métiers in terms of landed...
Tipo: Text
Palavras-chave: Biological sampling; Commercial species; Exploitation; Fishery management.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00304/41514/40722.pdf

Populations ichtyologiques de grands pélagiques. Sous-région marine Mers celtiques. Evaluation initiale DCSMM.
Provedor de dados: 5
Autores: Fromentin, Jean-marc; Bonhommeau, Sylvain.
Tipo: Text
Palavras-chave: Mers celtiques; Grands poissons pélagiques; Biocénose; Exploitation; Etat des stocks.
Ano: 2012
URL: https://archimer.ifremer.fr/doc/00328/43949/43522.pdf

Le tourteau (Cancer pagurus) et son exploitation par les flottilles de Bretagne Nord, 1984-1988
Provedor de dados: 5
Autores: Latrouite, Daniel.
Due to the unsuitability of the north brittany coastal fishing grounds for trawling, the fishing activity of the harbours of this coast has been oriented towards the catch of invertebrates and peculiarly the large crustaceans.  After, in the beginning of the XIX century, looking for lobster and spiny lobster, fishing has been, since the seventies, centered on the catch of the edible crab (Cancer Pagurus) and of the spider crab (Maia squinado). The first part of this document introduces the context of the exploitation and the concerned fleets. The second part treats of the biological parameters of the edible crab: growth, reproduction, migration and pathologies. The third part, devoted to the exploitation and the monitoring of the edible crab stock, is an...
Tipo: Text
Palavras-chave: Exploitation; Biology; Cancer pagurus; Edible crab; North brittany; Exploitation; Biologie; Cancer pagurus; Tourteau; Bretagne Nord.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/rapport-689.pdf

Exploitation, éléments de croissance et de dynamique du stock de coquilles Saint-Jacques (Pecten maximus, L.) des Pertuis Charentais
Provedor de dados: 5
Autores: Blanchard, Fabian.
Tipo: Text
Palavras-chave: Bay of Biscay; Pecten maximus; Growth; Exploitation; Stock assesment.
Ano: 1995
URL: https://archimer.ifremer.fr/doc/1995/rapport-523.pdf

Biodiversity and distribution of bivalves on the Aquitain coast (Bay of Biscay, France)
Provedor de dados: 5
Autores: De Casamajor, Marie-noelle; Caill-milly, Nathalie; Morandeau, Gilles; Lissardy, Muriel.
Tipo: Text
Palavras-chave: Bivalves; Bathymetric distribution; Sedimentation; Exploitation; Aquitaine.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00066/17727/15235.pdf

Traits biologiques et exploitation du bar commun Dicentrarchus labrax (L.) dans les pêcheries françaises de la Manche et du golfe de Gascogne.
Provedor de dados: 5
Autores: Fritsch, Manon.
Sea bass Dicentrarchus labrax (Linné, 1758) is a fish of major interest in France and in the British Isles. It is the main target species for some anglers and a growing number of professional fishermen. In spite of this, the reproduction of sea bass in natural environment, the identification of its populations, as well as the fleet participating to and the level of its exploitation are poorly known. Thus, in the perspective of a future management of the bass fisheries, this thesis collected required data for the analysis of the sea bass resource in the English Channel and the Bay of Biscay. A first chapter describes to the principal biological and ecological characteristics of Dicentrarchus labrax. The five following chapters deal successively with: (i)...
Tipo: Text
Palavras-chave: Fisheries management; Fisheries exploitation; Angling; Tagging; Microsatellite loci; Reproduction; Dicentrarchus labrax; Gestion de stocks; Exploitation; Pêche récréative; Pêcheries; Marquage; Marqueurs microsatellites; Reproduction; Dicentrarchus labrax.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/these-1088.pdf

Exploitation et structure des anguilles de dévalaison dans les lagunes aménagées du bassin d'Arcachon
Provedor de dados: 5
Autores: Lee, Tae-won.
The fishing by the sluice, employed in the brackish fish ponds of Arcachon Bay, catchs only the migrating eels. The exploitation by this process is not more than the 18 percent of the biomass. The structure of the migrating eels caught in winter 1977-78 was estimated using the double sampling method with length as strata. The sex­ratio was about 1.1. The males migrate to the sea from 3 to 7 years after of the brackish water life (maximum 5 years old) and the females leave the fish ponds, generally from 5 to 9 years after (maximum 7 years old). The estimated mean lengths, 37.5 cm for the males and 49.8 cm for the females, were much smaller than-those which were estimated in the Italian "Vallis"
Tipo: Text
Palavras-chave: Pêche à l'écluse; Exploitation; Anguilles de dévalaison; Double échantillonnage; Sex-ratio; Structure d'âge; Taille moyenne; Fishing by the sluice; Exploitation; Migrating eels; Double sampling; Sex-ratio; Age composition; Mean length.
Ano: 1979
URL: http://archimer.ifremer.fr/doc/00306/41684/40893.pdf

L'exploitation des ressources halieutiques dans le Mor Braz
Provedor de dados: 5
Autores: Durand, Jean-louis.
Introduction: Marine organism mortality in the Vilaine bay during July-August 1982, consecutive Dynophysis growth since that date prohibiting shellfish commercialisation, repetitious conflicts among sea professionals are the reflection of a fragile ecosystem and current instability of halieutic resources exploitation in Mor Braz . Becoming aware of this fragility the Ministère de la Mer (Ministry of the Sea) initiated the creation of the Commission Quadripartite (Quadripartite Commission) in charge of the Hydrobiologic Protection and Alieutic Development of the Quiberon-Vilaine bay, bringing together administrative and scientific professionals. Right from the start, among the missions entrusted to the Commission, the will to study the halieutic future of...
Tipo: Text
Palavras-chave: Fishing; Exploitation; Loire Atlantique; Morbihan; Mor Braz; Halieutic resources; Fleet.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/1998/rapport-1771.pdf

Perspectives d'exploitation des petits bivalves
Provedor de dados: 5
Autores: Berthou, Patrick.
Tipo: Text
Palavras-chave: France; Brittany; Bivalvia; Economics; Trade; Conservation; Catching; Stock; Fisheries; Manche Occidentale; Bretagne Sud; Bivalvia; Valorisation; Methode Capture; Gestion Stock; Exploitation.
Ano: 1987
URL: http://archimer.ifremer.fr/doc/1987/rapport-2208.pdf

Le Sebaste, Sebastes marinus sp.. Lieux de pêche, biologie, exploitation
Provedor de dados: 5
Autores: Hamon, Pierre-yves.
The term 'redfish' includes 4 different species which are described here: Sebastes marinus mentella, Sebastes marinus marinus, Sebastes viviparus and Helicolenus dactylopterus. Biology, distribution and exploitation of the first 2 species are presented. Redfish has a very wide distribution over the NE Atlantic, Iceland, Greenland, and NW Atlantic. The following areas are described in detail: Coast of Labrador and NE Newfoundland, Gulf of St. Lawrence, S Coast of Newfoundland and St. Lawrence channel, coast of Cape Breton and Nova Scotia, the George Bank South Channel and Nentucket shoals. Redfish biology is discussed under headings: life habits and migration; reproduction and growth; parasites; factors limiting distribution; nutrition; relationship between...
Tipo: Text
Palavras-chave: Exploitation; Biology; Fisheries; Sebastes marinus sp.; Redfish.
Ano: 1972
URL: http://archimer.ifremer.fr/doc/1972/publication-2058.pdf

Populations ichtyologiques de grands pélagiques. Sous-région marine Golfe de Gascogne. Evaluation initiale DCSMM.
Provedor de dados: 5
Autores: Fromentin, Jean-marc; Bonhommeau, Sylvain.
Tipo: Text
Palavras-chave: Golfe de Gascogne; Grands poissons pélagiques; Biocénose; Exploitation; Etat des stocks.
Ano: 2012
URL: https://archimer.ifremer.fr/doc/00329/44029/43601.pdf

Monitoreo biológico-pesquero del recurso erizo en la XII Región, Fase II
Provedor de dados: 20
Autores: Barahona, N.; Young, Z.; Ortiz, E.; Cornejo, S.; Mejías, P.; Gálvez, P.; Saavedra, J.; Castro, M.; Nilo, M.; Carrasco, J.; Jerez, G.
Este documento corresponde al informe final del proyecto FIP 2004-15 Fase II, estudio que se inició en noviembre del año 2004. Su ejecución permitió continuar con las actividades programadas en la Fase I. El objetivo general corresponde a la aplicación del sistema de monitoreo biológico pesquero geográficamente orientado al levantamiento de información de las actividades extractivas del recurso erizo en la XII Región. Se ejecutó una Pesca de Investigación que permitió a los agentes extractores operar entre el 26 de noviembre y el 20 de diciembre de 2004. En este informe se incorporaron los resultados entregados en el marco de la Fase I, con el fin de tener una visión integrada de la pesquería durante el 2004.
Tipo: Report
Palavras-chave: Exploitation; Biological data; Monitoring; Monitoring; Http://aims.fao.org/aos/agrovoc/c_4911.
Ano: 2005
URL: http://hdl.handle.net/1834/1845

Exploitation et optimisation de la production des cystes du crustacé "Artemia tunisiana" (bowen et sterling, 1978) dans la saline de Sfax
Provedor de dados: 20
Autores: Aloui, N.; Amorri, M.
La saline de Sfax constitue le meilleur site pour l’exploitation et la production d’Artemia en Tunisie. La production de cystes est exploitée chaque année pour être utilisée dans l’alimentation des larves de poissons. Cette production est estimée à 30 kg de cystes poids sec. Toutefois, lors de nos campagnes de récolte, nous avons enregistré de grandes pertes de cystes occasionnées par les vents emportant les cystes qui seront mélangés avec le sable.    Afin de minimiser les pertes et optimiser la production naturelle de la saline, nous avons jugé utile, d’installer des barrages dans les coins des bassins à Artemia pour s’opposer à l’action du vent. Par ailleurs, nous avons fait un suivi mensuel de l’abondance des cystes récoltés et de quelques paramètres...
Tipo: Journal Contribution
Palavras-chave: Barriers; Brine shrimp culture; Dissolved oxygen; Environmental conditions; Exploitation; Feeding; Fish larvae; Food organisms; Salinity effects; Spatial variations; Temporal variations; Cysts; Artemia culture; Prawns and shrimps; Crustaceans; Artemia.
Ano: 2009
URL: http://hdl.handle.net/1834/4747

Le chinchard Ouest africain (Trachurus trecae) biologie et recommandations pour l'exploitation optimale du stock sénégalo-mauritanien de la zone économique mauritaniennes
Provedor de dados: 20
Autores: Overko, S.; M'Bareck; Ly, B.; Tchernichkov, P. P.
Tipo: Journal Contribution
Palavras-chave: Biology; Exploitation.
Ano: 1985
URL: http://hdl.handle.net/1834/4663

Etude de la dynamique des systèmes d’exploitations et de l’éco biologie de la reproduction, de trois Mugilidés : &lt;Mugil cephalus&gt; (Linnaeus, 1758),&lt; Liza aurata&gt; (Perugia, 1892) et&lt; Mugil capurrii&gt; (Risso, 1810), analyse de leurs stratégies d’occupations des secteurs littoraux mauritaniens et de leurs possibilités d’aménagement.
Provedor de dados: 20
Autores: Ould Mohamed Vall, M.
Résumé : En Mauritanie, un constat clair met en évidence une tendance de sur-exploitation « en série» des stocks à haute valeur, des Mugilidés; le mulet jaune premièrement, puis ensuite le mulet noir et le mulet doré (espèces pouvant être considérées de substitution). L’exploitation intensive du mulet jaune à partir de 1996 a conduit au ciblage du mulet noir à partir de 1998 et puis, plus récemment encore, celui du mulet doré en 2001. L’absence d’une gestion rationnelle risque de conduire, dans moins de sept ans à la quasi-disparition de ces ressources (logiquement renouvelables).  C’est dans ce contexte de baisses des rendements, auquel s’ajoute la dégradation des zones littorales par l’action anthropique sans cesse croissante, que ce travail a permis...
Tipo: Theses and Dissertations
Palavras-chave: Biology; Distribution; Ecological distribution; Exploitation; Abundance; Legislation; Reproduction; Stock identification; Zonal distribution; Distribution; Biology; Legislation; Reproduction.
Ano: 2004
URL: http://hdl.handle.net/1834/1226

Biologie et exploitation du poulpe Octopus vulgaris (Cuvier, 1797) des côtes mauritaniennes
Provedor de dados: 20
Autores: Dia, M.A.
L’étude porte sur l’exploitation, la biologie et la dynamique du poulpe (Octopus vulgaris, Cuvier) des eaux mauritaniennes. La répartition spatio-temporelle dans la région du Cap Blanc ne semble être liée ni à la taille, ni au sexe, mais varie au cours de l’année. L’analyse de l’état actuel de la pêcherie basée sur les congélateurs céphalopodiers met en évidence une augmentation de l’effort de pêche et la poursuite de chute des p.u.e. La composition des captures révèle une progression du pourcentage des individus de poids inférieur à 200 grammes (« poulpo »). L’étude biologique montre qu’il existe deux saisons de reproduction par an (mai-juillet et septembre-novembre) qui engendrent deux recrutements, l’un en mai et l’autre à partir de septembre. La...
Tipo: Theses and Dissertations
Palavras-chave: Reproduction; Common octopus; Population dynamics; Environnement; Dynamique de population; Exploitation; Environment; Poulpe; ZEE Mauritanienne; Distribution; Mauritanian EEZ; Biologie; Croissance; Growth; Octopus vulgaris; Biology; Octopus fisheries.
Ano: 1988
URL: http://hdl.handle.net/1834/675

Mortality rate, exploitation and recruitment in Oreochromis niloticus (Linnaeus) in Nyanza Gulf of Lake Victoria, Kenya
Provedor de dados: 20
Autores: Getabu, A.
An analysis was done on length frequency data to study mortality,     exploitation rate and recruitment in Oreochromis niloticus in Nyanza     Gulf, Lake Victoria. The fishing mortality (F) and natural mortality     (M) were 0.468 y super(-1) and 2.0 y super(-1) respectively. The     exploitation rate was 57.2%. Yield per recruit under the fishing     regime was 250 g. Its predicted value at maximum sustained yield was     530 g, which could be obtained at a fishing mortality of 1.5 y     super(-1). The recommended value was 500 g to be obtained at a fishing     mortality of 1.0 y super(-1). The maximum biomass per recruit (B/R)     was 1132.48 g while the optimum was 1068.38 g. The biomass recruit     under the present fishing regime is 534.19 g which is...
Tipo: Proceedings Paper
Palavras-chave: Oreochromis niloticus; Exploitation; Fishery management; Lake fisheries; Mortality; Fishery management; Lake fisheries; Mortality; Http://aims.fao.org/aos/agrovoc/c_24026; Http://aims.fao.org/aos/agrovoc/c_4159; Http://aims.fao.org/aos/agrovoc/c_4945.
Ano: 1994
URL: http://hdl.handle.net/1834/1175

Sustentabilidad de la explotacion del gatuzo Mustelus schmitti, en el ecosistema costero bonaerense (34 - 42°S)
Provedor de dados: 20
Autores: Cortés, F.
The life history of Chondrichthyans results in a low capacity to recover from the fishery human impact, Mustelus schmitti is the most landing shark in Argentina (SW Atlantic)where reductions in the abundance have been detected. The sustainability of M. schmitti to exploitation using a demographic analysis, was examined. The intrinsic rate of population increase (r)and extinction risk under several harvesting strategies were estimated. For this purpose a stage-structured female-only matrix model was applied, considering the mortality and reproductive parameters to each stage. The estimate of length at maturity from the logistic curve was 56.04 cm. The fertility per female ranged between 1 and 15 pups and it was increased with total length. The Mortality...
Tipo: Theses and Dissertations
Palavras-chave: Exploitation; Natural mortality; Shark fisheries; Stock assessment; Population structure; Stock assessment; Population structure; Http://aims.fao.org/aos/agrovoc/c_24251; Http://aims.fao.org/aos/agrovoc/c_6115.
Ano: 2007
URL: http://hdl.handle.net/1834/2597

Multigear fishery of Nile perch (Lates niloticus) in the Winam Gulf of Lake Victoria: with special reference to mortality, selection and catch/effort data
Provedor de dados: 20
Autores: Manyala, J.O.; Rabuor, C.O.
A survey of multigear fishery of Nile perch (Lates niloticus) in the     Winam Gulf of Lake Victoria indicates that total mortality coefficient     (Z) determined from longline fishery using hook number 6 was double     that of hook number 7. Total mortality coefficient determined from     gillnets and beachseines were lower than those of hooks. The catch per     unit effort (C/f) measured using different criteria indicated an     increase for all gears in 1990 as compared to 1989 except for     gillnets. A two-fold increase in unit effort (f) increased the C/f for     mosquito seines by only 30%. The typical exponential decay of C/f with     increasing f of exploited stock in equilibrium was lacking in the case     of Nile perch in the Winam Gulf.
Tipo: Proceedings Paper
Palavras-chave: Lates niloticus; Catch/effort; Exploitation; Gillnets; Lake fisheries; Gillnets; Lake fisheries; Http://aims.fao.org/aos/agrovoc/c_32431; Http://aims.fao.org/aos/agrovoc/c_4159.
Ano: 1994
URL: http://hdl.handle.net/1834/1174

Croissance relative, sex-ratio et exploitation de la crevette blanche metapenaeus monoceros (fabricius, 1798) du golfe de gabes (tunisie)
Provedor de dados: 20
Autores: Jarboui, O.; Ben Abdallah, O.; Missaoui, H.; Ben Hadj Hamida, N.
Les crevettes, particulièrement Penaeus kerathurus, sont considérées parmi les espèces de crustacés les plus exploitées au niveau des côtes tunisiennes, essentiellement dans le golfe de Gabès. Depuis l’année 1993, une nouvelle espèce de crevette d’origine lesseptienne est apparue dans le golfe et s’est bien adaptée avec ses conditions climatiques et environnementales : c’est la crevette blanche Metapenaeus monoceros. L’objectif principal de cette étude consiste à suivre l’exploitation de cette espèce dans la région du golfe de Gabès, à étudier sa croissance relative et à déterminer la composition des captures selon le sexe. D’après les résultats obtenus nous avons pu constater que, durant la dernière décennie, la production de cette espèce dans le golfe de...
Tipo: Journal Contribution
Palavras-chave: Crevettes; Espèces exotiques; Exploitation; Croissance; Shrimps MED; Tunisia; Gabes Gulf Metapenaeus monoceros Growth Introduced species Marine crustaceans Sex ratio Growth Sex ratio http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_7014.
Ano: 2003
URL: http://hdl.handle.net/1834/1076

Ecología y conservación de los grandes tiburones costeros de Bahía Anegada, provincia de Buenos Aires, Argentina.
Provedor de dados: 20
Autores: Lucifora, L.O.
Reproduction, age, growth, feeding habits and population dynamics of four large temperate sharks (sand tiger shark Carcharias taurus, school shark Galeorhinus galeus, copper shark Carcharhinus brachyurus, and broadnose sevengill shark Notorynchus cepedianus) were studied in Anegada Bay (between 39°50' and 40°40'S), Argentina. Data were gathered from 1089 individuals examined during a three-year study period. Age and growth were studied through examination of vertebral centra only in the first three species. Population dynamics was modeled through stage matrix population models. Most sand tiger sharks examined were adults and evidence indicates that they use the study area as a mating ground. Sand tiger males mature at 193 and females at 223 cm total length...
Tipo: Theses and Dissertations
Palavras-chave: Reproductive behaviour; Feeding behaviour; Age; Growth; Exploitation; Shark fisheries; Reproductive behaviour; Feeding behaviour; Growth; Age; Http://aims.fao.org/aos/agrovoc/c_37902; Http://aims.fao.org/aos/agrovoc/c_10778; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_186.
Ano: 2003
URL: http://hdl.handle.net/1834/1441

Improvements in the Ghanaian tuna statistics system
Provedor de dados: 20
Autores: Quartey, R.; Bannerman, P.
Light fishing operations (LFO) in Ghana is concentrated in the three major coastal municipalities of Greater Accra (Tema), Central (Mumford &amp; Elmina) and Western (Sekondi) Regions; these areas have the port facilities for landing of the catch by the larger inshore vessels that operate the purse seine fishery in Ghana and which predominantly operate the light attraction. Currently there are about 250 registered inshore vessels in the country whose sizes range between 39 – 60 feet , only a small fraction are actually working at the moment due to problems with spare parts and operations. Light attraction is the technique of aggregating fish by artificial light; and light fishing is the process of fishing the attracted fish by hooking, gill-netting or by...
Tipo: Report
Palavras-chave: Age composition; Biological sampling; Exclusive economic zone; Exploitation; Fish catch statistics; Tuna fisheries; Age composition; Http://aims.fao.org/aos/agrovoc/c_29093.
Ano: 2005
URL: http://hdl.handle.net/1834/1266

Distribution of economic benefits from the fisheries of Lake Victoria
Provedor de dados: 20
Autores: Abila, R.O.; Odongkara, K.O.; Onyango, P.O.
The Lake Victoria fishery contributes immensely to the socio-economic development of the riparian states. The East African Community has designated the lake basin as an ‘economic growth zone’, with the potential to develop into a major economic region. The fisheries are vital in creating employment opportunities, mostly rural-based, thereby helping to reduce rural-urban migration. Fish is also a rich source of animal protein for human consumption and provides raw material (fishmeal) for processing animal feeds. The fish industry contributes to GDP and has continued to be an important source of foreign exchange earned from fish exports. Besides, the fish industry contributes to the national and local government revenues through levying of various taxes,...
Tipo: Proceedings Paper
Palavras-chave: Fishery economics; Fishery management; Fishery policy; Marketing; Resource management; Socioeconomic aspects; Economic benefits; Trade; Riparian zone; Economic analysis; International policy; Exploitation; Resource development; Freshwater fish; Inland fisheries; Inland water environment; Lake fisheries; Lake fisheries; Fishery management; Marketing; Economic analysis; Resource development; Resource management; Trade; Inland fisheries; Inland water environment; Http://aims.fao.org/aos/agrovoc/c_4159; Http://aims.fao.org/aos/agrovoc/c_24026; Http://aims.fao.org/aos/agrovoc/c_4620; Http://aims.fao.org/aos/agrovoc/c_2469; Http://aims.fao.org/aos/agrovoc/c_28018; Http://aims.fao.org/aos/agrovoc/c_6524; Http://aims.fao.org/aos/agrovoc/c_7848; Http://aims.fao.org/aos/agrovoc/c_3873; Http://aims.fao.org/aos/agrovoc/c_3875.
Ano: 2006
URL: http://hdl.handle.net/1834/2128

Focus on the Marine fisheries Research Division
Provedor de dados: 20
Autores: Marine Fisheries Research Division [CA].
Ministry of Food and Agriculture
Tipo: Report
Palavras-chave: Fishery policy; Marine environment; Fisheries; Exploitation.
Ano: 2002
URL: http://hdl.handle.net/1834/189

Etude diagnostic de la pêcherie de mulets sur la grande côte du Sénégal
Provedor de dados: 20
Tipo: Book
Palavras-chave: Mullet fisheries; Reproduction; Growth; Migrations; Ecology; Stocks; Landing statistics; Inland fisheries; Fishing gear; Exploitation; Canoe fisheries; Marketing; Artisanal fishing; Fishing licenses; Mesh regulations; Protected areas; Reef fisheries; Fishing effort.
Ano: 2009
URL: http://hdl.handle.net/1834/4578

Note sur l’exploitation expérimentale de la praire (&lt;Venus verrucosa&gt;) en Baie du Lévrier  (Mauritanie)
Provedor de dados: 20
Autores: Diop, M.
Note Scientifique
Tipo: Other
Palavras-chave: Exploitation; Marine molluscs; Potential resources; Product development; Stocks; Stocks; Product development; Http://aims.fao.org/aos/agrovoc/c_28772; Http://aims.fao.org/aos/agrovoc/c_16018.
Ano: 1988
URL: http://hdl.handle.net/1834/1190

Bases biológicas para la evaluación y manejo de metapoblaciones de loco en la III y IV Regiones
Provedor de dados: 20
Autores: González, J.; Tapia, C.; Wilson, A.; Stotz, W.; Orensanz, J.M.; Parma, A.M.; Valero, J.; Catrilao, M.; Garrido, J.
En la III y IV Regiones las áreas de manejo y explotación de recursos bentónicos (AMERB) se han establecido como la principal herramienta de manejo del recurso loco (Concholepas concholepas). Sin embargo, su aplicabilidad para la administración y aporte en términos del desarrollo sustentable, aunque sugerentes, requieren de una evaluación objetiva, en cuanto al manejo de carácter discreto que se ha establecido para cada AMERB, desconociendo la eventual interacción espacial de las mismas. En este marco, se desarrolla una aproximación para evaluar el desempeño de las AMERBs desde una perspectiva integral bajo un enfoque metapoblacional. Si bien el estudio está orientado a proporcionar la información de campo que permita probar la hipótesis de metapoblaciones...
Tipo: Report
Palavras-chave: Natural populations; Fishery resources; Exploitation; Resource management; Benthos; Benthos; Fishery resources; Resource management; Http://aims.fao.org/aos/agrovoc/c_878; Http://aims.fao.org/aos/agrovoc/c_2942; Http://aims.fao.org/aos/agrovoc/c_6524.
Ano: 2005
URL: http://hdl.handle.net/1834/1754

Les ressources vivantes exploitables du lac de Bizerte : Etat actuel et potentialités  ( première partie)
Provedor de dados: 20
Autores: Beji, O.
La production conchylicole du lac de Bizerte reste très faible (une moyenne de 120 t /an) comparée à son potentiel qui a été estimé selon les auteurs et la surface exploitée entre 10000 et 20000(t)/an. Un programme de développement d'entreprises conchylicoles de type familiales, PME et autres est à priori largement justifiable dans le lac de Bizerte et la mer ouverte avoisinante (zone de cap Zebib).La  production annuelle moyenne de la pêche est de 86,7 t/an avec une productivité totale de 12,4 kg/ha/an. L’aménagement de la pêcherie, l’introduction d’une aquaculture extensive et  l’ensemencement régulier du plan d’eau sont des solutions intéressantes pour améliorer les ressources du lac. La collecte naturelle des algues rouges de type gracilaire n’offre...
Tipo: Journal Contribution
Palavras-chave: Potential resources; Aquaculture development; Shellfish; Exploitation.
Ano: 2000
URL: http://hdl.handle.net/1834/4294

Evaluación y manejo de praderas de feofitas en la Provincia de Arauco
Provedor de dados: 20
Autores: Ávila, M.; Cáceres, J.; Núñez, M.; Camus, P.; Romo, H.; Pérez, R.
El objetivo general del proyecto fue evaluar los stocks y proponer alternativas de explotación de las praderas de feofitas (Durvillaea antarctica y Macrocystis pyrifera) de la Provincia de Arauco, VIII Región. Este objetivo se logró a través de los siguientes objetivos específicos: identificar y caracterizar los algares de Durvillaea y Macrocystis de la Provincia de Arauco; determinar el estado poblacional de los algares identificados; analizar alternativas de explotación y acciones de manejo para los algares identificados en la zona de estudio de acuerdo a la realidad local; proponer regímenes de explotación y acciones de manejo, para los algares identificados en la zona de estudio de acuerdo a la realidad local.
Tipo: Report
Palavras-chave: Algae; Stock assessment; Exploitation; Resource management; Stock assessment; Algae; Resource management; Http://aims.fao.org/aos/agrovoc/c_24251; Http://aims.fao.org/aos/agrovoc/c_258; Http://aims.fao.org/aos/agrovoc/c_6524.
Ano: 2005
URL: http://hdl.handle.net/1834/1810

Socio-economic dimensions of conservation of wetlands in African dry lands: A case study of River Ewaso Ngiro basin in southern Kenya
Provedor de dados: 20
Autores: Gichuki, Nathan N.; Macharia, Jane M.
Wetlands that occur in arid and semi-arid areas have unique characteristics and support unique biodiversity. The permanent wetlands are relatively small and isolated by large areas of dry land. There are however, numerous temporary or seasonal wetlands that contain water for only short period in the year. These wetlands contain water, a critical resource for all people, livestock, wildlife and plant life. The availability of fresh water minerals, pasture and other useful products attract humans, thereby making the wetlands to become focal points of economic development and indeed urbanization. The changing lifestyles of resident communities, such as increased focus on subsistence and commercial agriculture and sedentarization as opposed to nomadic...
Tipo: Proceedings Paper
Palavras-chave: Wetlands; Inland waters; Water reservoirs; Resource conservation; Environmental protection; River basins; Watersheds; Potential resources; Resource development; Exploitation.
Ano: 2006
URL: http://hdl.handle.net/1834/4299

Marine botanical resources of Kenya coast
Provedor de dados: 20
Autores: Ruwa, R.K.
Investigations have shown that Kenya coast botanical resources are     underutilized and have not been realized as exploitable resources.     Apart from the mangroves which are heavily exploited, algae and marine     angiosperm resources are the least exploited. In a step to realize     these as future exploitable resources their current uses in Kenya and     how they could be used is discussed. A review of research work which     could be seen as a prelude to further research is also included.
Tipo: Journal Contribution
Palavras-chave: Exploitation; Coastal zone management; Aquatic botanical resources; Resource management; Http://aims.fao.org/aos/agrovoc/c_6524.
Ano: 1986
URL: http://hdl.handle.net/1834/1288

Los recursos demersales de la Plataforma Continental del Ecuador. Parte dos. Producción potencial y recomendaciones para la utilización del recurso de pesca blanca en el Ecuador
Provedor de dados: 20
Autores: Herdson, D.; Rodríguez, W.; Martínez, J.
The stock estimates obtained during the demersal fish resources survey in 1980-1985 were used to estimate the potential yields of demersal stocks of the Ecuadorian Continental Shelf. The difficulties of predicting yields for multispecies fisheries are discussed and modified version of the Gulland model was adopted. The potential realizable yields for multispecies fisheries are discussed and a modified version of the Gulland model was adopted. The potential realizable yield was calculated to be between 15,000 t and 20,000 t per year, of which 2,000 t is good quality fish, 5,000 t per year of small and medium fish and 8,000 t of gurnards. The majority of these resources are at present being fished at around their optimum levels and any further developments...
Tipo: Journal Contribution
Palavras-chave: Demersal fisheries; Continental shelves; Yield predictions; Exploitation; Demersal fisheries; Continental shelves; Http://aims.fao.org/aos/agrovoc/c_2173; Http://aims.fao.org/aos/agrovoc/c_32413.
Ano: 1985
URL: http://hdl.handle.net/1834/3227

Estado de explotación del recurso besugo (Epigonus crassicaudus) en Chile
Provedor de dados: 20
Autores: Wiff, R.; Quiroz, J.C.; Tascheri, R.
The exploitation status of cardinalfish (Epigonus crassicaudus) yielded in Chile between 33° to 41°S was analyzed. An indirect assessment was performed between 1997 and 2003 through size-structured model with a transition matrix defining the changes among sizes. The model was calibrated using size structures, official landings, catch-per-unit of effort (CPUE) taken from commercial fishing logbooks and standardized by generalized linear models (GLM). After 7 years of an intense fishery activity, we concluded that the cardinalfish resource in Chile is on the recruitment overfishing limit. On 2003, the spawning biomass with respect to the virginal spawning biomass is close to 40%. The biological references points (BRP) based on spawning per recruit biomass...
Tipo: Journal Contribution
Palavras-chave: Exploitation; Fisheries; Stock assessment; Fisheries; Stock assessment; Http://aims.fao.org/aos/agrovoc/c_2934; Http://aims.fao.org/aos/agrovoc/c_24251.
Ano: 2005
URL: http://hdl.handle.net/1834/2069

Physical, chemical, microbiological and sensory carachterization of Manipuça jellies for municipal school meals of Fortaleza-CE
Provedor de dados: 94
Autores: Azevedo,Lidiane Medeiros Freitas; Lucena,Eliseu Marlônio Pereira de; Bonilla,Oriel Herrera; Silveira,Márcia Régia Souza da; Silva Júnior,Antenor.
Abstract  This research aimed to characterize the physical, chemical, microbiological and sensory characterization of manipuçá (Mouriri cearensis Huber) jellies as an alternative to school meals of an elementary public school in Fortaleza-CE. The fruits, in maturation stages 4 (mature) and 5 (senescent), were collected in the Botanical Garden of São Gonçalo, in São Gonçalo do Amarante-CE. Initially, the fruits of manipuça were processed and to obtain the jelly five formulations were proposed (treatments) containing different proportions of water and pulp (4:1-F1; 4:2-F2, 4:3-F3: 4:4-F4; and 4:5-F5), which then they were subjected to physicochemical analysis (total soluble solids-TSS; total titratable acidity-TTA; pH; TSS/TTA ratio-SAR; vitamin C-CV; total...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mouriri cearensis; Restinga fruit; Exploitation; Processing; Food technology.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000100901