Consulta: subjectFacets:"Fishery"
Registros recuperados: 50
Data/hora: 12/06/2024 19:11:59

Cumulative Effects of Coastal Habitat Alterations on Fishery Resources: toward Prediction at Regional Scales
Provedor de dados: 7
Autores: Jordan, Stephen J; United States Environmental Protection Agency, Gulf Ecology Division; jordan.steve@epa.gov; Smith, Lisa M; United States Environmental Protection Agency, Gulf Ecology Division; smith.lisam@epa.gov; Nestlerode, Janet A; United States Environmental Protection Agency, Gulf Ecology Division; nestlerode.janet@epa.gov.
Coastal habitat alterations such as the loss of submersed aquatic vegetation (SAV) and hardening of shorelines could have cumulative effects on valuable fishery resources. To investigate this effect, we developed a multiscale modeling framework for blue crab (Callinectes sapidus) in the northern Gulf of Mexico. Areal coverage of shoreline land cover and SAV for Mobile Bay, Alabama, were combined with information from small-scale biological studies and long-term, large-scale commercial fishery data to model the potential effects of marginal habitat losses on the blue crab fishery. We applied stochastic variation in annual recruitment to the fishery to estimate probabilities for sustainable harvests under scenarios of habitat loss. The simulations suggested...
Tipo: Peer-Reviewed Reports
Palavras-chave: Blue crab; Callinectes sapidus; Fishery; Gulf of Mexico; Habitat; Population model.
Ano: 2009

Mussel Production and Water Framework Directive Targets in the Limfjord, Denmark: an Integrated Assessment for Use in System-Based Management
Provedor de dados: 7
Autores: Dinesen, Grete E.; Coastal Ecology Section, National Institute of Aquatic Resources (DTU Aqua), Technical University of Denmark; gdi@aqua.dtu.dk; Timmermann, Karen; AU NERI, Roskilde;; Roth, Eva; SDU, Esbjerg;; Markager, Stiig; AU NERI, Roskilde;; Ravn-Jonsen, Lars; SDU, Esbjerg;; Hjorth, Morten; AU NERI, Roskilde;; Holmer, Marianne; SDU, Odense;.
Tipo: Peer-Reviewed Reports
Palavras-chave: Aquaculture; Bioeconomical modeling; Blue mussels; Danish estuary; Eutrophication; Fishery; Integrated coastal system assessment; Stakeholder involvement.
Ano: 2011

Development and characterization of 20 polymorphic microsatellite markers for Epinephelus marginatus (Lowe, 1834) (Perciformes: Epinephelidae) using 454 pyrosequencing
Provedor de dados: 74
Autores: Vaini,Jussara Oliveira; Mota,Kenneth Gabriel; Ojeda,Alejandra Paola; Barreiros,João Pedro; Moreira,Renata Guimarães; Hilsdorf,Alexandre Wagner Silva.
Abstract The dusky grouper, Epinephelus marginatus, is a well-known and widespread marine fish assessed as endangered by the International Union for the Conservation of Nature. Analyzing the genetic diversity of this species is, therefore, of utmost importance and necessary for conservation purposes. Microsatellites are molecular tools with advantages that are ideal for population analyses. This study provides the first set of species-specific microsatellite loci for E. marginatus that can be applied when assessing both intra- and interpopulation genetic variation. Twenty microsatellite loci were isolated and characterized for the dusky grouper by genotyping 20 individuals obtained from the North Eastern Atlantic Ocean (n = 4) and from the South Western...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Short tandem repeat; Population genetics; Conservation; Fishery; Marine resources.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572019000100074

Рыбные ресурсы черного моря: многолетняя динамика, режим эксплуатации и перспективы управления
Provedor de dados: 13
Autores: Еремеев, В. Н.; Зуев, Г. В.
На основе комплексного анализа многолетней динамики ряда промыслово-биологических показателей пред­принята попытка определить характер и степень воздействия промышленного рыболовства на формирование рыбных ресурсов в Черном море (с начала 70-х годов по настоящее время), дать оценку их современного со­стояния и перспектив развития, а также выяснить роль обозначенного фактора в антропогенной перестройке экосистемы бассейна. Главной причиной катастрофического сокращения черноморского вылова в 1989 г. следует считать последовательное сокращение промыслового запаса, начиная с 1979 г., в результате посто­янно нараставшей интенсивности рыболовства. На это указывают: 1) наличие тесной отрицательной корре­ляционной связи (г = -0,898) между величиной запаса и...
Tipo: Journal Contribution
Palavras-chave: Промысловый запас; Вылов; Промысел; Черное море; The Black Sea; Catch; Fishery; Stock Fish catch statistics Stocks Stocks http://aims.fao.org/aos/agrovoc/c_28772.
Ano: 2005
URL: http://repository.ibss.org.ua/dspace/handle/99011/202

Биологическая дифференциация и структура запаса черноморского шпрота sprattus spra ttus phalericus (pisces: clupeidae)
Provedor de dados: 13
Autores: Зуев, Г. В.; Мельникова, Е. Б.; Пустоварова, Н. И.
Изучали внутривидовую дифференциацию и структуру запаса шпрота из разных районов северо-западной части Черного моря. В качестве популяционных характеристик использованы следующие параметры возрас­тной структуры: общее количество поколений (годовых классов), относительная численность разных поко­лений, средний возраст особей в популяции, средние размеры одновозрастных особей. По трем показателям (из четырех) обнаружены достоверные (уровень значимости ниже 0,05) различия между шпротом из запад­ной (о-в Змеиный) и восточной (у западного и южного побережья Крыма) областей. Полученные результаты позволили уточнить предложенную нами ранее предварительную схему внутривидовой дифференциации и структуры запаса черноморского шпрота [5J, согласно которой данный вид в...
Tipo: Journal Contribution
Palavras-chave: Шпрот; Улов; Промысел; Перелов; Запас; Черное море; The Black Sea sprat; Catch; Fishery; Over fishing; Stock Stocks Fishing Stocks Fishing http://aims.fao.org/aos/agrovoc/c_28772 http://aims.fao.org/aos/agrovoc/c_26950.
Ano: 2005
URL: http://repository.ibss.org.ua/dspace/handle/99011/192

Bibliografia de recursos naturais da Amazônia brasileira.
Provedor de dados: 14
Autores: LOPES, A. de S. A.; VAZ PEREIRA, I. C.
bitstream/item/145920/1/BIBLIOG-RECURSOS-NATURAIS.pdf
Tipo: Livro técnico (INFOTECA-E)
Palavras-chave: Natural resource; Ecosystem; Hydrography; Fishery; Energetic resource; Navigation.; Climatologia; Ecossistema; Hidrografia; Hidrologia; Limnologia; Navegação; Meteorologia; Pesca; Recurso Energético; Recurso Natural; Solo.; Amazonia; Climatology; Hydrology; Meteorology; Soil.
Ano: 1984
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/373224

A pesca no Pantanal Sul: situação atual e perspectivas.
Provedor de dados: 14
Autores: CATELLA, A. C.
Informações pesqueiras - conhecer para decidir; Os produtos da pesca profissional artesanal e da esportiva; Delimitação de estoques pesqueiros; O peixe mudou de mão; Novas mudanças no perfil da pesca; Pesque e solte - intencional e não intencional; Nível de exploração da pesca; Espécies subaproveitadas; Agregando valor ao pescado; Peixe de granja e peixe caipira; Conhecimento ecológico tradicional; Perfil do pescador profissional artesanal; Crise do setor turístico pesqueiro; Alternativas para o setor turístico pesqueiro; Novas instituições no cenário da pesca; Gestão participativa; Fatores externos à pesca; Fatores naturais e antrópicos; Escolha do modelo de desenvolvimento.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Mato Grosso do Sul; Brasil; Fishery; Production.; Peixe; Pesca; Produção.; Brazil; Pantanal; Fish.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/799005

Sistema de controle de pesca de Mato Grosso do Sul SCPESCA/MS 2 - 1995.
Provedor de dados: 14
Autores: CATELLA, A. C.; ALBUQUERQUE, F. F. de; PEIXER, J.; PALMEIRA, S. da S.
Neste documento encontram-se as informacoes coletadas e organizadas pelo Sistema de Controle da Pesca de Mato Grosso do Sul - SCPESCA/MS, para o ano de 1995. Essas informacoes foram obtidas para todo o pescado (profissional e esportivo) oficialmente vistoriado e desembarcado no Estado. Foi registrado um total de 1.399 toneladas de pescado, onde 31,4% correspondem a pesca profissional e a 68,6% a pesca esportiva. As especies mais capturadas foram: pacu (427t), pintado (280t), piavucu (129t), cachara (108t), jau (55t), barbado (50t) e piranha (48t). A contribuicao dos rios mais piscosos foi: Paraguai 53,1%, Miranda 19,8%, Aquidauana 7,1%, Taquari 5,2% e Cuiaba (localmente conhecido como Sao Lourenco) 3,2%. Um total de 43.921 pescadores esprotivos visitaram o...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Controle; Mato Grosso do Sul; Fishery; Control.; Pesca.; Peixe; Fish.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/800896

Sistema de controle da pesca de Mato Grosso do Sul - SCPESCA/MS: 1 maio/1994 a abril/1995.
Provedor de dados: 14
Autores: CATELLA, A. C.; PEIXER, J.; PALMEIRA, S. da S.
Nesse documento encontram-se as informacoes coletadas e organizadas pelo SISTEMA DE CONTROLE DA PESCA DE MATO GROSSO DO SUL - SCPESCA/MS, para o periodo de maio/1994 a abril/1995. Essas informacoes foram obtidas para todo o pescado (profissional e esportivo) oficialmente vistoriado e desembarcado no Estado. Foi registrado um total de 1.433,5 toneladas de pescado, onde 28,1% corresponde a pesca profissional e a 71,9% a pesca esportiva. As especies mais capturadas foram: pacu (655,9t), pintado (253,5t), cachara (104,5t), piranha (duas especies, 77,0t), piavucu (69,3t), barbado (68,8t), dourado (63,4t), jau (42,0t) e curimbata (20,6t). A contribuicao dos rios mais piscosos foi: Paraguai 42,7%, Miranda 26,2%, Aquidauana 7,5%, Taquari 6,3% e Cuiaba (localmente...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Controle; Mato Grosso do Sul; Fishery; Control; System.; Pesca.; Brazil; Pantanal.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/790957

Diagnóstico da pesca e aspectos da biologia reprodutiva dos peixes da bacia hidrográfica do rio Taquari, Mato Grosso do Sul, Brasil.
Provedor de dados: 14
Autores: RESENDE, E. K. de; SANTOS, D. C. dos.
Neste trabalho são apresentados os primeiros resultados, dentro de uma visão integrada, dos aspectos biológicos e da atividade pesqueira na bacia hidrográfica do rio Taquari, trazendo informações que contribuam para esclarecer a problemática da pesca na bacia. - Produção pesqueira do rio Taquari; Análise dos guias de controle de pescado e autos de infração; Missões de fiscalização relâmpago; Cálculos para estimativa da produção pesqueira clandestina (PPC); Produção pesqueira obtida do SCPESCA/MS de 1997; Produção pesqueira estimada de 1997 (PPAE) = PPC + PP.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Biologia reprodutiva; Rio Taquari; Fishery; Diagnosis; Reproductive biology.; Diagnostico; Peixe; Pesca.; Pantanal; Fish.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/810510

L'homme et les ressources halieutiques. Essai sur l'usage d'une ressource commune renouvelable
Provedor de dados: 5
Autores: Troadec, Jean-paul.
The full exploitation of the world fishery resources has drastically modified the prospects and conditions for progress in fisheries. It was detenninant in the change of the Ocean Regime. Moreover, it widened considerably the range of issues which have to be addressed for an efficient use of marine living resources. Assessment approaches for complex fisheries, carrying capacity of basins and management of bivalve mollusc stocks, natural variability of fish stocks and management implications, methods for access regulation, economic rent, resources and use rights allocation, nature of aitisanal fisheries, strategies for fishery development in Third World countries, international dimensions of fisheries, etc. are among the issues reviewed in this book by...
Tipo: Text
Palavras-chave: Pisces; Mollusca; Economy; Marine living resource; Fishery.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/rapport-1511.pdf

Understanding consequences of adaptive monitoring protocols on data consistency: application to the monitoring of giant clam densities impacted by massive mortalities in Tuamotu atolls, French Polynesia
Provedor de dados: 5
Autores: Georget, Stephane; Van Wynsberge, Simon; Andrefouet, Serge.
During long-term monitoring, protocols suitable in the initial context may have to change afterward because of unforeseen events. The outcome for management can be important if the consequences of changing protocols are not understood. In Tuamotu Archipelago atolls, French Polynesia, the density of giant clams (Tridacna maxima) has been monitored for 12years, but massive mortalities and collapsing densities forced to shift from a line-intercept transects and quadrats (LIT-Q) method to a belt-transect (BT) method. We investigated with a simulation approach the conditions (density, size structure, aggregation of giant clam populations) under which the two methods provided different results. A statistical model relating the BT density to the LIT-Q density was...
Tipo: Text
Palavras-chave: Belt-transect; Ecological monitoring; Fishery; Line-intersect transects; Mass mortality; Quadrats; Sampling methods; Time series; Tridacna maxima.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00516/62717/69556.pdf

La pecherie de langouste rouge en Corse
Provedor de dados: 5
Autores: Marin, Jean.
The european red spiny lobster, Palinurus elephas, is the main target species of the small-scale fishery in Corsica. The fishery is described fleet, fishing areas, fishing strategy and fishing gear ; fishing effort, yield, c.p.u.e, and complementary.catches ; resource condition. Its specific problem, the economic overfishing, is analysed. Finally, it has been tried to assess the fishing regulation impact (minimum market size, fishing seasonal close, fishing sanctuaries).
Tipo: Text
Palavras-chave: Small scale fishery; Corsica; Spiny lobster; Fishery; Petit métier; Corse; Langouste; Pecherie.
Ano: 1988
URL: http://archimer.ifremer.fr/doc/1988/rapport-1538.pdf

Oyster culture in European countries
Provedor de dados: 5
Autores: Heral, Maurice; Deslous-paoli, Jean-marc.
Three species of oysters have been or are cultivated in Europe: Crassostrea angulata, C. gigas, and Ostrea edulis. If we follow the taxonomic critera of Grassé,  the European oysters belong to the group of Mollusca, class of Lamellibranchia or Bivalves, order of Filibranchia, family Ostreidae with two genera: C. angulata (Lamarck), Portuguese, cupped oyster; C. gigas, (Thunberg), Japanese or Pacific, cupped oyster; Ostrea edulis (Linné), fiat European oyster.  Some authors think that C. gigas and C. angulata belong to the same species. lndeed, Ranson stated that the characteristics of the larvae are the same, and Menzel obtained viable hybrids (F2) between these two oysters. AIso, Buroker et al. in studying the genetic variations of proteins and enzymes of...
Tipo: Text
Palavras-chave: European countries; Pathology; Methods of culture; Recruitment; Fishery; Salinity and temperature tolerances; Larval development; Growh; Biology; Oyster culture.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/publication-3038.pdf

Findings from an exploratory study on the governance of a French fishery
Provedor de dados: 5
Autores: Tissière, Laurie; Mahévas, Stephanie; Trouillet, Brice.
In marine fisheries science, the application of social sciences and the increasing use of a multidisciplinary approach have enriched fisheries research through new paradigms. The stance on fisheries governance aims to complement bio-economic approaches and to break with the “tragedy of the commons” premise by focusing on the institutions and network actors at the heart of knowledge, representations, actions and decisions systems. Although the French-European context is largely determined by The Common Fisheries Policy, governance levers and an organised network of actors have been identified in demersal and benthic fisheries. In the present study, the observation of dialogue meetings identified the stakeholder strategies and interactions used to activate...
Tipo: Text
Palavras-chave: Governance; Fishery; Common Fisheries Policy; Stakeholders; Social interactions.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00423/53474/55105.pdf

Les modeles bio-economiques d'exploitation des pecheries, demarches et enseignements
Provedor de dados: 5
Autores: Meuriot, Eric.
This publication provides a presentation of the steps followed in the construction of "bio-economic" models of fisheries. The topic is limited to the theorical models which deal with the producer's behavior and for which an analytical solution can be derived. The following types of models are analysed : (i) static and deterministic, (ii) dynamic and deterministic, (iii) static and stochastic.
Tipo: Text
Palavras-chave: Fishery; Economy; Bio economic models.
Ano: 1987
URL: http://archimer.ifremer.fr/doc/1987/rapport-1462.pdf

The problem of discards in fisheries
Provedor de dados: 5
Autores: Morizur, Yvon; Caillart, B; Tingley, D.
Introduction : It is now clear that the world's fishery resources are being subjected to exploitation at or above their capacity to produce maximum sustainable yields. At the same time as these trends are being felt, there is a very large wastage of fishery resources from discarding unwanted catches at sea. At the end of each fishing operation a part of the catch is often returned to the sea after sorting by the fishermen. A 1994 FAO report provided an estimate of global discards in commercial fisheries of 27 millions of tons per year compared to 50 million tons of direct human consumption. A more recent FAO document estimated that discards were in the order of 20 million tons in 1997. The majority of the world's fisheries are multi-species in nature and...
Tipo: Text
Palavras-chave: Marine; Wastage; Overview; World; Social; Economic; Ecology; Biology; Impact; Target; Species; Gear; Fishery; Bycatch; Catch; Discards.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/1999/publication-1237.pdf

Contribution à l'étude de la crevette rose Palaemon serratus (Pennant) : Exploitation, Biologie, Elevage, Epidémiologie
Provedor de dados: 5
Autores: Campillo, Albert.
This these is the result of several years of investigations conducted on the common prawn Palaemon serratus in the Roscoff (northern Brittany) and Yeu (bay of Biscay) sectors of the French Atlantic coast.    Following a description of the fishery and fishing strategies, it deals with the species biological aspects, focusing on growth, lifespan, sex-ratio and breeding. Hypotheses on the reasons for apparent variations in interannual abundance are drawn up and compared with field observations.   The second part is devoted to production experiments in a controlled environment (hatchery), explaining how larvae are obtained and their development and survival with respect to food, density and physical parameters like salinity and temperature. The link between...
Tipo: Text
Palavras-chave: Shrimp farm; Larval development; Sex ratio; Breeding; Growth; Fishery; Palaemon serratus; Common prawn; Elevage; Développement larvaire; Sex ratio; Reproduction; Croissance; Pêche; Palaemon serratus; Crevette rose.
Ano: 1979
URL: http://archimer.ifremer.fr/doc/1979/these-1196.pdf

Analyses de données halieutiques (séries historiques) sur le thon germon, Thunnus alalunga, en Atlantique Nord-est
Provedor de dados: 5
Autores: Patucca, Audrey.
The works carried out during this course (March-August 2015) alowed to correct the datasets and to study the variation in catches of albacore tuna from 1967 to 2014 (except for the years 1987 to 1990) based on 3 gears: the trolling line, the line with cane and the pelagic trawl. Simultaneously, key ICCAT delivred was provide information to expert groups, with a view to defining fishing quotas. Catches released and fishing effort (defined by the number of vessels and the time spent at sea) have varied considerably over these 50 years, and have been increasing in recent years, after having decreased sharply. Fishing today is concentrated on the edge of the continental shelf, whereas it was very oceanic before. It is mainly juveniles that are caught, while...
Tipo: Text
Palavras-chave: Thunnus alalunga; Captures; Atlantique; Pêcheries; Thunnus alalunga; Catch; Atlantic; Fishery.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00388/49927/50501.pdf

Les prises accessoires de la pêcherie de civelles (Anguilla anguilla) dans l'estuaire de la Loire en 1987
Provedor de dados: 5
Autores: Guerault, Daniel; Desaunay, Yves; Bellois, Pierre; Grellier, Patrick; Robin, Jean-paul; Robineau, Brigitte.
A survey of the glass-eel fishery in the Loire estuary in 1987 (265 boats, 117 tons gasseel, 13733 fishing trips) showed that 16 fishery species constitute the by-catch (49,3 million individuals, mainly juveniles, among which 98 % consist in flounder, sprat and brown shrimp). The analysis of catches in space and time leads to proposaIs for Iimiting the impact during the last fishing weeks. Taking into account the naturai mortality rates of the concerned juveniles, an attempt is made to estimate the actuai impact of the glasseel fishery, after a delay. Only 10 % of the caught brown shrimps wouid have been recruited in the summer shrimp fishery. Up to 85,5 to 97,6 % of juvenile fishes would have disappeared during the following year by natural mortality.
Tipo: Text
Palavras-chave: Anguille; Pêcherie; Prises accessoires; Estuaire; Loire; Eel; Fishery; By catch; Estuary; Loire.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/00120/23102/20951.pdf

Biologie et peche du 'balai' Hippoglossoides platessoides dans l'Atlantique du Nord-ouest.
Provedor de dados: 5
Autores: Minet, Jean-pierre; Poulard, Jean-charles.
The biology of the American plaice (the 'balai'), Hippoglossoides platessoides and its fishery in the N-W Atlantic are examined. A. Biology of the balai in relation to the fishery; (1) General distribution and maximum concentration. (a) Greenland, (b) Labrador, (c) Newfoundland, (d) Gulf of St. Lawrence, (e) Nova Scotia and U.S.A. (2) Factors influencing distribution. (a) Nature of bottom, (b) depth, (c) temperature. (3) Size distribution. B. The N-W Atlantic fishery. (1) Small-time fishery. (2) Commercial fishery. (3) Foreign fishery. C. Processing and marketing.
Tipo: Text
Palavras-chave: N W Atlantic; Hippoglossoides platessoides; Fishery; Biology.
Ano: 1972
URL: http://archimer.ifremer.fr/doc/1972/publication-2057.pdf

La pêcherie du tourteau Cancer pagurus sur les cotes de Bretagne Sud : déplacements, croissance, reproduction
Provedor de dados: 5
Autores: Le Foll, Anne.
Targeted fishing of the edible crab Cancer pagurus has progressively replaced that of overfished lobster and spiny lobster stocks.  Over the past few years it has become a significant activity for small-scale fishing vessels from various harbours on the Channel and the Atlantic French coast. Official figures show that national landings amounted to 10,000 tonnes in 1980. In spite of this fishery being recent, drops in yield in some areas have brought about changes in the way it is exploited, with more distant fishing grounds and redeployments.  This doctoral thesis study was conducted in relation with the Scientific and Technical Institute of Maritime Fisheries (ISTPM), contributing to the implementation of a rational edible crab management policy....
Tipo: Text
Palavras-chave: Reproduction; Growth; Migration; South Brittany; Northern Biscay; Fishery; Cancer pagurus; Edible crab; Reproduction; Croissance; Migration; Bretagne sud; Nord Gascogne; Pêche; Cancer pagurus; Crabe tourteau.
Ano: 1982
URL: http://archimer.ifremer.fr/doc/1982/these-1204.pdf

Les petites pêches côtières et estuariennes Françaises du sud du golfe de Gascogne. Typologie des flottilles et approche socio-économique et commerciale
Provedor de dados: 5
Autores: Leaute, Jean-pierre; Caill-milly, Nathalie.
The European contract PECOSUDE (Small inshore fisheries of the south of Europe) accepted in 2000 for 2 years concerns French, Spanish and Portuguese partners. The aim is to assess the inshore and estuarine fisheries from Loire estuary to Portugal. Three levels of study are considered : fisheries (data 1999), socioeconomy and marketing (data 1999 or 2000). Exploitation in the 12 miles area for France and on continental shelf for northern Spain and Portugal (within 1000 m depth), as well as the fishing period lower than 96 hours was determined as the definition of this fishery for the study. Socioeconomic analyses are made only on boats smaller than 15 m. The fisheries part analyses the activity of the fishing vessels taking into account gears used, landed...
Tipo: Text
Palavras-chave: Commercialisation; Indicateur économique; Pêcherie; Flottille de pêche côtière et estuarienne; Enquête socio économique; Typologie; Golfe de Gascogne; Marketing; Economic indicator; Fishery; Coastal and estuarine fishing fleet; Socioeconomic inquirie; Typology; Bay of Biscay.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/2003/rapport-1572.pdf

Integration of bioenergetics in an individual-based model to hindcast anchovy dynamics in the Bay of Biscay
Provedor de dados: 5
Autores: Bueno-pardo, Juan; Petitgas, Pierre; Kay, Susan; Huret, Martin.
The population of European anchovy of the Bay of Biscay collapsed at the beginning of the 21st century, causing the closure of its fishery between 2005 and 2010. In order to study both the human and environmental causes of the anchovy population dynamics, an approach coupling individual bioenergetics to an individual-based model was applied between 2000 and 2015. This modelling framework was forced with outputs from a physical–biogeochemical model. In addition to a base-case scenario with realistic forcing, alternative scenarios were run without inter-annual variability in either fishing mortality or environmental conditions. During the decrease in population biomass, a high fishing pressure coincided with a combination of environmental variables promoting...
Tipo: Text
Palavras-chave: Anchovy; Bay of Biscay; Dynamic Energy Budget; Fishery; Harvest control rule; Individual-based model; Population collapse.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00598/70984/69272.pdf

A new approach to recruitment overfishing diagnosis based on fish condition from survey data
Provedor de dados: 5
Autores: Ordines, Francesc; Lloret, Josep; Tugores, Pilar; Manfredi, Chiara; Guijarro, Beatriz; Jadaud, Angelique; Porcu, Cristina; Gil De Sola, Luis; Carlucci, Roberto; Sartini, Marina; Isajlovic, Igor; Massutti, Enric.
A new approach to recruitment overfishing diagnosis is presented. We hypothesize that condition of recruits should increase when recruitment failures are caused by fishing activity. This would be a consequence of the increase in trophic resource availability, because the population is smaller than that which the ecosystem could support. Temporal series of hake recruit condition were calculated from MEDITS survey data collected in Mediterranean geographical sub-areas (GSAs) 1, 6, 17 and 19 from 1994 to 2015. Multiple linear regressions were used to analyse the relationship between mean annual condition and abundance of recruits and climatic indices in each GSA. Significant correlations were only detected in GSA 6, where 69% of condition variability was...
Tipo: Text
Palavras-chave: Merluccius merluccius; Fishery; Recruits; Condition index; Recruitment overfishing; MEDITS survey.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00513/62458/66762.pdf

Pêche de la langouste rouge Palinurus elephas en france. Eléments pour fixer une taille marchande
Provedor de dados: 5
Autores: Latrouite, Daniel; Noel, Philippe.
From the end of XIX century to the 1950', spiny lobster (Palinurus elephas) fishing has been an important economical activity for potters of Brittany and led to landings over two thousands tons. Later, impoverishment of traditional fishing grounds and closure, to French fleet, of foreign fishing area obliged a reconversion of potters toward crabs (edible crab and spider crab). Recently in the 80', development of a netting activity has restarted catches of spiny lobster (at a modest scale). Presently, the only reglementary measure concerning this species/metier is a national minimum legal size (total length) but European Commission has wished that a European MLS would be established. In that aim, this paper presents the main features of spiny lobster...
Tipo: Text
Palavras-chave: Reproduction; Fishery; France; Atlantic; Droit; Commerce; Size; Spiny lobster; Palinurus elephas; Biometry; Fishing; Reproduction; Biométrie; Pêche; Palinurus elephas; Langouste rouge.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/1997/acte-1415.pdf

Prospection et peche de la crevette profonde Pandalus borealis au large des cotes de Terre-Neuve et de Nouvelle-Ecosse.
Provedor de dados: 5
Autores: Fontaine, Bernard; L'Herrou, Roger; Decamps, Philippe; Paturel, Bernard.
To assess the potential fishery for Pandalus borealis, the R/V `CRYOS' made cruises, in 1970 off SW Newfoundland and in 1971 off Nova Scotia. The trenches where Pandalus is found and the 3 types of trawl (large mouth, balloon and flat) are described. Details of size of catches and of individuals, and also of fish species caught are given. Prawn stocks in these grounds seem to match those of grounds already being exploited. Significant fish catches may also be expected (e.g. skate, herring and cod). Canadian type trawlers of ~ 65 ft would be suitable to exploit this fishery.
Tipo: Text
Palavras-chave: Fishery; Nova Scotia; Pandalus borealis; Prawn.
Ano: 1972
URL: http://archimer.ifremer.fr/doc/1972/publication-2055.pdf

The influence of fiscal regulations on investment in marine fisheries: A French case study
Provedor de dados: 5
Autores: Le Floc'H, Pascal; Daures, Fabienne; Nourry, Myriam; Thebaud, Olivier; Travers, Muriel; Van Iseghem, Sylvie.
Analysing investment drivers in fisheries is essential in understanding the long-term development of fishing capacity. This paper addresses the drivers of investment in the French commercial fishing fleets operating along the Atlantic coast, and the role of public policies have had on investment. First, we examine the changes in the capital value of the fleet, which was strongly impacted by decommissioning schemes during the nineties. We then examine drivers of investment using an unbalanced panel data set describing the investment decisions of a sample of firms over the period 1994-2004. In addition to economic variables, the estimated models account for other factors that may have an impact on investment behaviour, including the different career phases...
Tipo: Text
Palavras-chave: Fishery; Capital; Fiscal regime.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00037/14803/12236.pdf

Évolution de l'écosystème pélagique du Golfe de Gascogne pendant la période 1990-2003. Conséquences sur la capturabilité des espèces
Provedor de dados: 5
Autores: Villalobos, Hector.
Several small pelagic fish species contribute remarkably to world catch. Their populations are, however, characterized by large biomass fluctuations strongly affecting fisheries. The fishing gears and methods used to capture small pelagics have evolved to exploit the highly developed shoaling behavior of these species. Hence, faced to modern fishing this gregarious behavior becomes a disadvantage for fish. Fish behavior may be affected by environmental conditions and by fishing, at the same time that behavior impacts fishing. In this study, we seek to characterize the aggregative systems of small pelagic fishes inhabiting the Bay of Biscay by analyzing "acoustic images", defined as the group of echoes (planktonic layers, shoals, isolated targets) detected...
Tipo: Text
Palavras-chave: Biscay Bay; Hydrological landscapes; Fishery; Atlantic mackerel; Atlantic horse mackerel; European sardine; European anchovy; Small pelagic fish; Acoustic image; Agregation pattern; School descriptors; Golfe de Gascogne; Paysages hydrologiques; Pêcherie; Maquereau; Chinchard; Sardine; Anchois; Petits poissons pélagiques; Image acoustique; Type d'agrégation; Descripteurs de bancs.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/these-6083.pdf

A comparison of economic performance in the fisheries sector: A short- and long-term perspective
Provedor de dados: 5
Autores: Le Floc'H, P.; Daures, Fabienne; Brigaudeau, Cecile; Bihel, J.
Indicators of the economic performance of fishing vessels are frequently computed in various countries. In this paper, we use different types of information to assess capital value and the economic performance of fishing vessels. On the one hand, field surveys provide technical and financial information on the main components of fishing capital. On the other hand, book values are given in bookkeeping databases. Both sources of information on fishing capital are used for the same set of vessels, namely the commercial fishing fleet of the French region of Brittany. Based on these two sources, measures of economic performance can be produced for the short term using gross surplus; and for the long term including the cost of capital. The measures of...
Tipo: Text
Palavras-chave: Fishery; Accounting; Production cost; Microeconomic data.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-6257.pdf

An end-to-end model to evaluate the sensitivity of ecosystem indicators to track fishing impacts
Provedor de dados: 5
Autores: Halouani, Ghassen; Le Loc'H, François; Shin, Yunne-jai; Velez, Laure; Hattab, Tarek; Romdhane, Mohamed Salah; Ben Rais Lasram, Frida.
In order to assist fisheries managers, ecological indicators are needed to evaluate the effects of fishing activities on marine ecosystems and to improve communication of these effects in both public and scientific contexts. Finding appropriate indicators is challenging given the complexity of marine food webs as well as the ecosystem response to fishing pressure. In this study, an end-to-end model developed in the Gulf of Gabes ecosystem (Tunisia) was used to compare the performance of a set of ecosystem indicators in assessing the impact of fishing. This end-to-end model aimed to represent the ecosystem functioning by coupling two existing sub-models, the multispecies individual-based model OSMOSE, representing the dynamics of exploited species and the...
Tipo: Text
Palavras-chave: Ecological indicators; OSMOSE; Ecosystem model; End-to-end model; Marine ecosystem; Fishing impacts; Fishery; Gulf of Gabes.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00464/57604/60172.pdf

Incidences des épisodes d'efflorescences de micro algues toxiques sur les écosystèmes et sur les pêcheries de coquillages en baie de Douarnenez
Provedor de dados: 5
Autores: Thebaud, Olivier; Veron, Gerard; Fifas, Spyros.
The commercial fishery for wedge clam, or telline (Donax trunculus) in the bay of Douarnenez in France started in the early 1980ies. During twenty years, the activity has developed, from an opportunistic fishery, into a regular fishing enterprise for 36 fishermen, who derive from it most, if not all, of their revenue. The fishery is nowadays strictly regulated. It is subject to natural variations in the productivity of clam stocks, in relation with meteorological conditions which can strongly affect the stocks.  The bay of Douarnenez has been experiencing regular blooms of harmful algae, both of species leading to shellfish poisoning for human consumption, such as Dinophysis (Diarrhoeic Shellfish Poisoning) and Pseudo-nitzschia (Amnesic Shellfish...
Tipo: Text
Palavras-chave: Temporary fishing ban; Mortality; Economic impact; Fishery; Wedge clam; Donax trunculus; Fermeture temporaire; Mortalité; Impact; Pêcherie; Telline; Donax trunculus.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/rapport-1262.pdf

Le caractère territorial des attractions touristiques liées aux pêches maritimes : une illustration par le modèle du panier de biens
Provedor de dados: 5
Autores: Pocheau, Chloé; Alban, Frederique; Le Floc H, Pascal; Legouvello, Raphaela.
The question addressed in this article focuses on the conditions for strengthening the territorial character of tourist attractions around a fishing port with a strong identity. In the face of the depletion of resources, the territories dependent on the exploitation of living marine resources try reconversions during the 1990s, especially towards tourism. The article is based on the fishing port of Guilvinec on which has been created an exhibition center for a large audience. The survey methodology is mobilized to delimit the territory on which the fishing activities and the exhibition center are attractive. An estimate of the expenses incurred by visitors is proposed. The tourist’s consumption of the exhibition center and fisheries is in line with the...
Tipo: Text
Palavras-chave: Attractiveness; Basket of goods; Fishery; Territory; Tourism.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00636/74860/75265.pdf

Evaluation du stock de palourdes du bassin d'Arcachon
Provedor de dados: 5
Autores: Bertignac, Michel; Auby, Isabelle; Sauriau, Pierre-guy; De Montaudouin, Xavier; Foucard, Julie; Martin, Sophie.
As part of a larger project financed by the European Union programme "Community initiative PESCA" on the study of "small scale fisheries" in Aquitaine (France), an estimation of the stock of clams in the Bassin d'Arcachon has been conducted. A two-stage stratified random sampling survey has been designed. Samples have been collected using a Hamon bottom sampler in 237 locations distributed over 24 km2. The clam Tapes philippinarum, which appeared in the basin following a series of aquaculture experiments in the mid eighties, is now the main species accounting for more than 90% of the abundance and the biomass, largely overcoming the European species Tapes decussata. The mean abundance and biomass (26 clams / m2 et l28g / m2) are above those estimated in...
Tipo: Text
Palavras-chave: Palourde; Tapes philippinarum; Tapes decussata; Evaluation stock; Pêche; Pêche à pied; Echantillonnage; Bassin d'Arcachon; Clam; Tapes philippinarum; Tapes decussata; Stock assessment; Fishery; Sampling; Bassin d'Arcachon.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/00105/21658/19240.pdf

Guide de la mensuration des espèces en halieutique, poissons, mollusques, crustacés, reptiles marins, mammifères marins
Provedor de dados: 5
Autores: Badts, Vincent; Bertrand, Jacques.
This guide presents the rules for measuring fi shes, mollusks, shellfi shes, reptiles and marine mammals applicable to the fisheries surveys coordinated by Ifremer, including tasks carried out at the international level, in particular within the European regulation related to the fishery data collection.
Tipo: Text
Palavras-chave: Mensuration; Taille; Poisson; Mollusque; Crustacé; Reptile marin; Mammifère marin; Halieutique; Protocole; Measurement; Size; Fishe; Mollusk; Shellfishe; Marine reptile; Marine mammal; Fishery; Guideline.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00001/6237/7655.pdf

Scyllarides obtusus spec. nov., the scyllarid lobster of Saint Helena, Central South Atlantic (Crustacea: Decapoda Reptantia: Scyllaridae)
Provedor de dados: 16
Autores: Holthuis, L.B.
A new species of slipper lobster is described from Saint Helena, where the species seems to be endemic. Known under the vernacular name Stump, the species forms the subject of a local fishery, carried out since early times. Previously the species has been identified with various Scyllarides species from the Atlantic and East Africa.
Tipo: Article / Letter to the editor
Palavras-chave: Scyllaridae; Scyllarides obtusus spec. nov.; Saint Helena; Slipper lobsters; Stump; Fishery; 42.74.
Ano: 1993
URL: http://www.repository.naturalis.nl/record/319105

Taxonomy, ecology and fishery of Lake Victoria haplochromine trophic groups
Provedor de dados: 16
Autores: Witte, F.; Oijen, M.J.P van.
Based on ecological and morphological features, the 300 or more haplochromine cichlid species of Lake Victoria are classified into fifteen (sub)trophic groups. A key to the trophic groups, mainly based on external morphological characters, is presented. Of each trophic group a description is given comprising data on taxonomy, ecology and fishery. As far as possible data from the period before the Nile perch upsurge and from the present situation are compared. A list of described species classified into trophic groups is added.
Tipo: Article / Letter to the editor
Palavras-chave: Ecology; Fishery; Haplochromis; Haplochromine cichlids; Key; Lake Victoria; Taxonomy; Trophic groups.; 42.81.
Ano: 1990
URL: http://www.repository.naturalis.nl/record/317685

Population and reproductive parameters of the red-tailed catfish, Phractocephalus hemioliopterus (Pimelodidae: Siluriformes), from the Xingu River, Brazil
Provedor de dados: 83
Autores: Freitas,Tiago Magalhães da Silva; Montag,Luciano Fogaça de Assis.
ABSTRACT A field study of the sex ratio, length-weight ratio, body size at first gonadal maturation, and the breeding season of the red-tailed catfish, Phractocephalus hemioliopterus, was carried out in the region of the middle Xingu River in the eastern Amazon basin. The fish were sampled quarterly from September 2012 to January 2014 using gillnets and long lines. The sex ratio was balanced, and while males and females were similar in standard length, the females were heavier than the males, on average. The males presented negative allometric growth, and the females, isometric growth. The estimated size at first maturity was 77.8 cm. The variation in the gonadosomatic index and the greater frequencies of mature specimens indicated a reproductive peak at...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon basin; Breeding season; Fishery; Gonadal maturity; Growth pattern.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000200216

Parturition time for the Blacktip shark, Carcharhinus limbatus (Carcharhiniformes: Carcharhinidae), in Southwestern Atlantic
Provedor de dados: 83
Autores: Santander-Neto,Jones; Yokota,Leandro; Meneses,Thiago Silveira de.
Abstract The determination of the period of parturition and identification of nursery areas are fundamental for the management and conservation of a fishing resource. Through combination of monthly abundance, length measurements, and development time of embryos we inferred about parturition time of the Blacktip sharks, Carcharhinus limbatus, from Southwestern Atlantic. Specimens of C. limbatus were caught from 2002 and 2008 by artisanal fleets from three different locations along the Brazilian coast using gillnets (mesh width ranging between 30 and 120 mm between opposite knots and operating from 9 to 120 m in depth), handlines (19 to 140 m depth) and longlines (6 to 90 m depth). Through a comparative analysis of fisheries landing data collected, we have...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Birth time; Chondrichthyes; Fishery; Nursery; Reproductive biology.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252020000300212

CONTRIBUTION A LA MAITRISE DE LA REPRODUCTION CONTROLEE DE Prochilodus magdalenae (Steindachner 1878) : EFFETS COMPARES DE DEUX INDUCTEURS DE PONTES ( CPE et LHRHa) ET DU MODE D'INDUCTION
Provedor de dados: 20
Autores: Kane, A.
L'aptitude et l'efficience à induire la maturation finale de Prochilodus magdalenae (Steindachner 1878) ont été testées avec deux inducteurs chez des femelles et mâles de bocachico sélectionnés avec des critères morphologiques externes . Leurs effets ont été testés avec deux types de doses (hypothèse de dose définitive haute avec 10 mgkg et 0,075 mg/kg respectivement pour CPE et LHRHa associée à du pimozide à 5 mgkg; hypothèse de dose définitive basse avec e g k g et 0,05 mgkg pour respectivement CPE et LHRHa) et deux schémas d'injections dont l'une avec une seule dose préliminaire (contenant le diième de la dose définitive et espacée de 15 à 16 heures de celle ci) et le second avec deux injections préliminaires (espacées de 24 h). Parallèlement, nous...
Tipo: Theses and Dissertations
Palavras-chave: Fishery; Fishery biology; Fishery biology; Http://aims.fao.org/aos/agrovoc/c_2937.
Ano: 1999
URL: http://hdl.handle.net/1834/2613

A new species of Euprognatha Stimpson, 1871 (Crustacea, Brachyura, Inachoididae) from off coast of northeastern Brazil
Provedor de dados: 84
Autores: Santana,William; Tavares,Marcos.
A new species of Euprognatha Stimpson, 1871 from off coast of Brazil (Canopus Bank, 02º15.3'00"S - 38º16.0'00"W) is described and illustrated, namely Euprognatha limatula n. sp. The new species is compared to its congeners. Lectotypes are designated for E. acuta A. Milne-Edwards, 1880 and E. granulata Faxon, 1893. A key to the species of Euprognatha is provided.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Seamounts; Brazil; Fishery; Euprognatha; Inachoididae; Spider crab.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492008002700001

On the type material of Scyllarides deceptor Holthuis, 1963 (Crustacea: Decapoda: Scyllaridae)
Provedor de dados: 84
Autores: Tavares,Marcos; Santana,William; Pinheiro,Allysson.
The only specimen listed in the original description of Scyllarides deceptor Holthuis, 1963 is the holotype from São Paulo, Brazil, presently housed in the Leiden Museum. From the original description, however, it is clear that the new species was actually based on a number of additional specimens. Six of them exist in the collections of the Museum of Zoology in São Paulo, and are shown herein to be paratypes of S. deceptor. Scyllarides deceptor and S. brasiliensis Rathbun, 1906, continue to be confounded with one another, in consequence of their very similar color patterns and locally sympatric distributions. As many as 251,786 tons of slipper lobsters have been landed in Santa Catarina between 2000 and 2007. These catches have been attributed to S....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Slipper lobsters; Scyllarides deceptor; Scyllarides brasiliensis; Taxonomy; Fishery; Sympatry.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492009004000001

A Dynamic Model of Mesh Size Regulatory Compliance
Provedor de dados: 31
Autores: Akpalu,   Wisdom.
This paper employs a dynamic model for crimes that involve time and punishment to analyze the use of a net with illegal mesh size in a management regime where each community claims territorial use right over a fishery but has a discount rate that may differ from the social discount rate. The equilibrium stock and harvest levels are found to be much lower if the regulation is violated. Moreover, the optimal penalty for violation must be decreasing in the shadow cost of taking the risk to fish illegally, and increasing the risk of punishment increases the equilibrium stock level.
Tipo: Journal Article
Palavras-chave: Crime; Dynamic model; Fishery; Regulation; Resource /Energy Economics and Policy.
Ano: 2010
URL: http://purl.umn.edu/61059

The Economic Significance of Bioeconomic Feedback Loops: The Case of a Recreational Fishery
Provedor de dados: 31
Autores: Deisenroth,   Daniel B.; Craig,   Bond.
Tipo: Conference Paper or Presentation
Palavras-chave: Bioeconomic; Feedback; Optimal Control; Fishery; Dynamic; Environmental Economics and Policy; Q57.
Ano: 2010
URL: http://purl.umn.edu/61414

Capacity reduction, quota trading and productivity: the case of a fishery
Provedor de dados: 31
Autores: Fox,   Kevin J.; Grafton,   R. Quentin; Kompas,   Tom; Che,   Tuong Nhu.
We present the first ex post study that quantitatively analyses the effects of a licence buyback and enhanced quota trading on the profitability and productivity of individual vessels in a fishery. Using firm-level data and a profit index decomposition method, we find that small and large vessels and three different trawler fleets all experienced substantial productivity gains in the year immediately following a licence buy-back and the establishment of a quota brokerage service. The apparent ongoing benefits of the buy-back and increased quota trading over the sample period are in stark contrast to the generally unfavourable long-term outcomes commonly associated with vessel buy-backs in input-controlled fisheries.
Tipo: Journal Article
Palavras-chave: Capacity reduction; Fishery; Productivity; Quota trading; Productivity Analysis.
Ano: 2006
URL: http://purl.umn.edu/116929

El cluster pesquero de Chimbote: acción conjunta limitada y la tragedia de los recursos colectivos
Provedor de dados: 31
Autores: Kuramoto,   Juana R.
Chimbote es uno de los principales puertos pesqueros del Perú y alberga una parte importante de las fábricas de harina de pescado del país. Sin embargo, luego de más de cincuenta años de existencia, este puerto está lejos de haberse convertido en un cluster dinámico formado por negocios pesqueros altamente especializados y diversificados.  Este trabajo pretende explicar esta situación, usando como tesis que la acción conjunta es primordial en el desarrollo de los clusters dinámicos y que ésta se ve obstaculizada en las actividades económicas que no cuentan con derechos de propiedad claramente establecidos, como es el caso de la pesca de anchoveta.  La falta de acción conjunta se aprecia en la persistencia de problemas que afectan la eficiencia colectiva...
Tipo: Working or Discussion Paper
Palavras-chave: Pesca; Puertos pesqueros; Industria pesquera; Desarrollo pesquero; Desarrollo económico; Perú; Fishery; Fishing ports; Fishery industry; Fishery development; Economic development; Peru; Q22.
Ano: 2005
URL: http://purl.umn.edu/37730

Quota Trading and Profitability: Theoretical Models and Applications to Danish Fisheries
Provedor de dados: 31
Autores: Andersen,   Jesper Levring; Bogetoft,   Peter.
Using Data Envelopment Analysis (DEA), we provide a framework to analyze the potential gains from quota trading. We compare the industry profit and structure before and after a free trade reallocation of production quotas. The effects of tradable production quotas depend on several technological and behavioral characteristics, including the ability to learn best practice (catch-up) and the ability to change the input and output composition (mix). To illustrate the usefulness of our approach, we analyze a dataset from the Danish fishery. We study the industry profit and structure under each of four sets of technological and behavioral characteristics.
Tipo: Working or Discussion Paper
Palavras-chave: Data Envelopment Analysis (DEA); Individual Transferable Quotas (ITQ); Reallocation; Technical efficiency; Allocative efficiency; Fishery; Agribusiness; C61; L51; Q22; Q28.
Ano: 2003
URL: http://purl.umn.edu/24180

Density, abundance and extractive potential of the mangrove crab, Ucides cordatus (Linnaeus, 1763) (Brachyura, Ocypodidae): subsidies for fishery management
Provedor de dados: 42
Autores: PINHEIRO,MARCELO A.A.; SOUZA,MARCELO R.; SANTOS,LUCIANA C.M.; FONTES,ROBERTO F.C.
ABSTRACT Ucides cordatus is a relevant fishery resource of Brazilian mangroves and requires legal normative to sustainable use based on stock assessment and management. This study evaluated some population parameters (structure, density, abundance, fishery potential and stock) of this crab species in Brazil Southeast (São Paulo, State), discussing the use of the results to delineate fishery management strategies. Density was monthly evaluated (September 1998 to August 1999), using five sample quadrats of 2x2 m. Density (ind.m-2) was indirectly estimated by counting the opened (with biogenic activity) and closed galleries, and contrasted with flooding level by tides using the vertical distribution of macroalgae in the base of trees. Density of U. cordatus...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crab; Crustacean; Fishery; Management; Mangrove; Population.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000401381

Temporal changes in caiçara artisanal fishing and alternatives for management: a case study on the southeastern Brazilian coast
Provedor de dados: 49
Autores: Lopes,Priscila Fabiana Macedo; Begossi,Alpina.
This paper describes a case study of the changes in fishing that occurred in a Brazilian coastal community after a 10 year interval (1992-2002). There was a decrease in the mean amount of fish caught daily (from 14 kg to 11.32 kg) and annually (from 4.2 t to 3.4 t) and in the richness of species caught (from 21 to 17 species); there was also a low similarity in the species composition of the fish landings (Morisita-Horn index Ch = 0.24). These changes suggested a decline in the locally exploited fish populations, which probably caused the discontinuation of commercial artisanal fishing. However, the diversity of fish caught by hook and line and purse-seine fishing was higher in the second period, whereas there was no significant difference in the diversity...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fishery; Atlantic coast community; Co-management; Temporal changes.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032008000200005

Fishing activity in Northern Rio de Janeiro State (Brazil) and its relation with small cetaceans
Provedor de dados: 52
Autores: Beneditto,Ana Paula Madeira Di; Ramos,Renata Maria Arruda; Lima,Neuza Rejane Wille.
Research on fishing activity at Atafona village, in Northern Rio de Janeiro, Brazil (21°35'S), was carried out between 1987-96 for the purpose of relating it to the accidental capture of small cetaceans and of estimating the relationship between fishing activity and the diet of small cetaceans. Data on fishing operations were obtained at the cold storage plants management, from interviews with fishermen and personal observations. The most representative fishing resources were Xyphopenaeus kroyeri, Micropogonias furnieri, Carcharhinus plumbeus, C. acronotus,and Rhizoprionodon porosus. Gillnets are responsible for the accidental capture of small cetaceans in the region, mainly Pontoporia blainvillei and Sotalia fluviatilis (marine form). Four types of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fishery; Accidental capture; Pontoporia blainvillei; Sotalia fluviatilis.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131998000300004