Consulta: subjectFacets:"Lobster"
Registros recuperados: 11
Data/hora: 07/06/2024 05:16:12

Weak feedbacks, governance mismatches, and the robustness of social-ecological systems: an analysis of the Southwest Nova Scotia lobster fishery with comparison to Maine
Provedor de dados: 7
Autores: Barnett, Allain J. ; Arizona State University; ajbarnet@asu.edu; Anderies, John M; Arizona State University; m.anderies@asu.edu.
The insights in Governing the Commons have provided foundational ideas for commons research in the past 23 years. However, the cases that Elinor Ostrom analyzed have been exposed to new social, economic, and ecological disturbances. What has happened to these cases since the 1980s?  We reevaluated one of Ostrom&amp;#8217;s case studies, the lobster and groundfishery of Port Lameron, Southwest Nova Scotia (SWNS). Ostrom suggested that the self-governance of this fishery was fragile because the government did not recognize the rights of resource users to organize their own rules. In the Maine lobster fishery, however, the government formalized customary rules and decentralized power to fishing ports. We applied the concepts of feedback, governance...
Tipo: Peer-Reviewed Reports
Palavras-chave: Atlantic Canada; Collective choice; Institutional analysis; Lobster; Maine; Polycentricity; Robustness.
Ano: 2014

The Evolution of the Maine Lobster V-Notch Practice:  Cooperation in a Prisoner's Dilemma Game
Provedor de dados: 7
Autores: Acheson, James; Department of Anthropology and School of Marine Sciences, University of Maine; acheson@maine.edu; Gardner, Roy; Department of Economics, Indiana University; gardner@indiana.edu.
Tipo: Peer-Reviewed Reports
Palavras-chave: Collective action; Evolutionary game theory; Lobster; Maine; Prisoner's dilemma; V-notch program.
Ano: 2011

Результаты подводных наблюдений за глубоководным омаром Nephropides  caribaeus (Decapoda, Nephropidae) юго-западной Атлантик.
Provedor de dados: 13
Autores: Пахоруков, Н. П.; Игнатьев, С. М.
Глубоководный омар (Nephropides caribaeus Manning, 1969) известен по немногочисленным поимкам из Карибского региона, эндемиком которого он традиционно считался. Анализ результатов наблюдений ПОА «Север-2» (1988 – 1989), выполненных на материковом склоне Южной Америки, на банке Бёрвуд и о-ве Южная Георгия, расширяет существующие представления о распространении этого вида. Установлено, что вид обилен в диапазоне глубин от 510 до 1250 м и встречается значительно южнее (до 53°S) и восточнее (до 35°W), чем считалось ранее. Омары предпочитают илисто-песчаные грунты, где они образуют скопления, которые вполне могут рассматриваться как промысловые (биомасса до 15000 т).
Tipo: Journal Contribution
Palavras-chave: Омар; Nephropides caribaeus; Юго-западная Атлантика; Подводные наблюдения; Lobster; Nephropides caribaeus; South-west Atlantic; Underwater observers; Південно-західна Атлантика; Підводні спостереження.
Ano: 2008
URL: http://repository.ibss.org.ua/dspace/handle/99011/832

Données sur la reproduction et la taille de première maturité du homard Homarus gammarus d'Iroise et du golfe de Gascogne
Provedor de dados: 5
Autores: Latrouite, Daniel; Leglise, Michel; Raguenes, Gérard.
This paper deals with the lobsters caught by French fishermen off the "Conquet" (Iroise sea) and off "Ile d'Yeu" (Biscay Bay) on the French atlantic coast. The size at first maturity, defined as the size at which 50 % of female are able to reproduce, is deduced from the analysis of size frequency in landings. It is also shown that more than 50 % of the mature female are spawing each year ; the periods of hatching in the natural environment are also established.
Tipo: Text
Palavras-chave: Size at maturity; Western Channel; Reproduction; Homarus gammarus; Lobster; Atlantic; Biscay Bay; Iroise sea; Golfe de Gascogne; Iroise; Manche; Taille de maturité; Reproduction; Homarus gammarus; Homard.
Ano: 1981
URL: http://archimer.ifremer.fr/doc/1981/acte-1414.pdf

Etude préalable à la gestion des stocks de crustacés en Bretagne
Provedor de dados: 5
Autores: Autissier, Isabelle; Coum, Andrée; Cuillandre, Jean Pierre; Veron, Gerard; Latrouite, Daniel.
At the end of the seventies, as fishing abundance (based on Catch Per Unit Effort) in crabs and lobster fishery steadily declined, operating expenses increased, and fishing boats changed strategy (changing metiers, covering larger distance to fishing areas, fishing seasons being extended, ...) professionals and scientists aimed to consider reinforcing management measures. To enlighten and support potential related decisions, the Comité Régional des Pêches et Cultures Marines de Bretagne (Regional Committee for fishing and farming in Brittany), together with the ISTPM (Ifremer since 1984), conducted a survey on the exploited populations and gave a review of the involved Breton fleet. This report shows the results of a survey conducted among fishermen,...
Tipo: Text
Palavras-chave: Landings; Catch rates; Fishing area; Fishing effort; Fleet; Brittany; Edible crab; Lobster; Spider crab; Apport; Rendement; Zone de pêche; Effort de pêche; Flottille; Bretagne; Tourteau; Homard; Araignée.
Ano: 1981
URL: http://archimer.ifremer.fr/doc/1981/rapport-1548.pdf

Les pêcheries mixtes de langoustine et de merlu du golfe de Gascogne. Description, préparation à une modélisation et à une simulation des procédures de gestion
Provedor de dados: 5
Autores: Charuau, Anatole; Ifremer.
1 - Study's goals review The management of Norway Lobster and Hake fisheries can be considered as the most important issue in the Gascogne gulf. Calculation methods used to evaluate prediction variations under various efforts and mesh constraints all pinpoint to the crucial role narrow mesh fishing plays in Hakes' Northern stock status. The involvement of Gascogne gulf Norway Lobster fisheries regarding Hakes over exploitation seems over dimensioned when comparing the size of both of these stocks. Hake stocks spread from Northern Great Britain to Northern Spain, while Norway Lobster stocks are located in the Gascogne gulf's mud flats. The biological solution is well known and consists in globally  increasing mesh nets to 80mm which would bring up Hakes...
Tipo: Text
Palavras-chave: Procedures of management; Modeling; Bay of Biscay; Mixed fishery; Lobster; Hake.
Ano: 1987
URL: http://archimer.ifremer.fr/doc/1987/rapport-1763.pdf

Fécondités individuelle et par recrue du homard européen Homarus gammarus (L.) des cotes françaises
Provedor de dados: 5
Autores: Latrouite, Daniel; Morizur, Yvon; Raguenes, Gerard.
Several relationships between the fecundity and the weight or the size of females have been studied for three different (based on "eye-index") stages of incubation. The relationship between the average weight of eggs at the beginning of incubation and the size of the females shows that the egg size varies according to the female's size. Loss of eggs during incubation has been studied ; the average loss between the two extreme stages of incubation is around 27%. This is a lowered value of what accurs during the whole incubation period. Egg losses are greater for small females than for big females. The annual frequency of spawning and size at first maturity have been determined in for differents fishing effort than by the commercial size.
Tipo: Text
Palavras-chave: Maturity; Fecundity per recruit.; Reproduction; Europe; France; Lobster; Aquiculture; Homarus gammarus; Fecundity; Fécondité par recrue; Fécondité; Maturité; Reproduction; Homarus gammarus; Homard.
Ano: 1984
URL: http://archimer.ifremer.fr/doc/1984/acte-1404.pdf

Mapping habitats in a marine reserve showed how a 30-year trophic cascade altered ecosystem structure
Provedor de dados: 5
Autores: Leleu, Kevin; Remy-zephir, Brice; Grace, Roger; Costello, Mark J.
Time-series studies have reported trophic cascades in land, freshwater and marine environments in many geographic areas. However, the spatial extent of habitats, a key metric of ecosystem structure, has not been mapped in these studies. Marine reserves can provide experimental, before-after and inside-outside (control-impacted), situations for assessing the impact of fishing on ecosystems. We mapped seabed habitats and their associated communities (biotopes) in New Zealand's oldest marine reserve for comparison with pre-reserve maps created about 30 years previously. Areas grazed bare by sea urchins were entirely replaced in the centre of the reserve by kelp, or alga turf, an intermediate biotope between heavily grazed encrusting algae and lightly grazed...
Tipo: Text
Palavras-chave: Kelp forest; Ecosystem change; Predator release; Subtidal mapping; Urchin Barren; New Zealand; Lobster; Fish; Time-series.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00107/21842/20067.pdf

Ressources halieutiques hors quotas du Nord Est Atlantique : bilan des connaissances et analyse de  scénarios d'évolution de la gestion
Provedor de dados: 5
Autores: Forest, Andre.
Part of the resources caught in the North Sea, Channel or Atlantic Sea do not fall under the « TAC and Quotas » strand of the Common Fisheries Policy, but the European Union may propose that such measures may eventually be applied to them. Usually these resources do not undergo regular assessments. This study focuses on « ex quota » stocks fished by French fleets, in order to assess knowledge concerning them and analyse possible trends in their management. It was contracted with funding from the Maritime fisheries and aquaculture directorate. Thirty-four species in all were chosen with respect to their interest for French fleets and the probability of Europe's adopting supplementary management measures for them. Available data is sometimes patchy (or not...
Tipo: Text
Palavras-chave: Seiche; Sikis; Tacaud commun; Requin taupe; Tourteau Grondin rouge; Sardine Grenadier de roche; Sabre noir Germon; Rouget barbet Empereur; Raie bouclée Dorade grise; Raie fleurie Calmar; Petite roussette Turbot; Merlan Barbue; Lingue bleue Bar; Lieu jaune Araignée de mer; Homard Gascogne Manche Biologie Evaluation de stocks Gestion Edible Crab Gulper Sharks And Dogfish; Bib; Porbeagle Red Mullet; Black Scabbard Fish; Sardine; Cuttlefish Lesser Spotted Dogfish; Cuckoo Ray; Thornback Ray Red Gurnard; Lobster; Pollack; Blue Ling; Whiting Black Bream; Orange Roughy; Albacore Tuna; Round Nose Grenadier Sea Bass; Brill; Turbot; Squid Channel; Biscay; Spider Crag Biology Stock assessment Management.
Ano: 2001
URL: https://archimer.ifremer.fr/doc/2001/rapport-1201.pdf

Digestive endo-proteases from the midgut glands of the Indian white shrimp, Penaeus Indicus (Decapoda: Penaeidae) from Kenya
Provedor de dados: 20
Autores: Omondi, J.G.
In order to provide information on the digestive capacity of marine crustacea of mariculture potential in Kenya with a view to aiding the development of suitable feeds to support the industry, a biochemical survey was made of enzymes of extracellular digestion in the Indian White shrimp, Penaeus indicus. Results showed midgut gland endo-proteases in wild adult shrimp from the Kenya coast to have optima between pH 7.2 and 8.5 (Trypsin pH 7.5-8.0, Chymotrypsin pH 7.2-7.8, Elastase pH 6.8-8.5) with maximum specific activities of 101-408, 37-516, 70-90 Units mg protein-1 min-1 for trypsin, chymotrypsin and elastase respectively. There was no pepsin. The North Sea Norway lobster, Nephrops norvegicus, was investigated to a lesser extent and found to have much...
Tipo: Journal Contribution
Palavras-chave: Shrimp; Crustacea; Midgut gland; Lobster; Digestive endo-proteases; Enzyme inhibitors; Hepatopancreas NEPHROPS NORVEGICUS PENAEUS INDICUS Marine crustaceans Mariculture Biochemical analysis Shrimp culture.
Ano: 2005
URL: http://hdl.handle.net/1834/1141

Managing Sustainability and Export Risks: The Case of Tasmanian Southern Rock Lobster
Provedor de dados: 31
Autores: Dentoni,   Domenico.
Tipo: Conference Paper or Presentation
Palavras-chave: Lobster; Tasmania; China; Sustainability; Export; Case study.; Agribusiness; Agricultural and Food Policy; Demand and Price Analysis; International Relations/Trade; Marketing; Research and Development/Tech Change/Emerging Technologies; Teaching/Communication/Extension/Profession.
Ano: 2011
URL: http://purl.umn.edu/103908