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| Duer-Balkind, Marshall; Department of the Environment, Washington, DC; School of Forestry and Environmental Studies, Yale University, New Haven, CT, USA; marshall@aya.yale.edu; Jacobs, Kasey R.; NOAA Coastal Management Fellow at the Puerto Rico Coastal Zone Management Program, San Juan, PR; School of Forestry and Environmental Studies, Yale University, New Haven, CT, USA; kasey.jacobs@aya.yale.edu; Basurto, Xavier; Duke Marine Lab, Nicholas School of the Environment, Duke University, Beaufort, NC, USA; xavier.basurto@duke.edu. |
| Social-ecological resilience is an increasingly central paradigm for understanding sustainable resource management. In this study, we aimed to better understand the effect of environmental variability on the resilience of fishery systems, and the important role that social institutions and biophysical constraints play. To explore these issues, we built a dynamic model of the pen shell fishery of the indigenous Seri people in the Gulf of California, Mexico. This model included the dynamics of the two dominant species in the fishery (Atrina tuberculosa and Pinna rugosa), several institutional rules that the Seri use, and a number of ecological constraints, including key stochastic variables derived from empirical data. We found that modeling with multiple... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Artisanal fisheries; Common-pool resources; Environmental variability; Gulf of California Mexico; Multi-species; Resilience; Social-ecological systems; Stochasticity; System dynamics. |
| Ano: 2013 |
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| Guillen, Jordi; Macher, Claire; Merzereaud, Mathieu; Bertignac, Michel; Fifas, Spyros; Guyader, Olivier. |
| Most worldwide fish stocks are overexploited, and so exploited beyond the Maximum Sustainable Yield (MSY) and the Maximum Economic Yield (MEY). Not exploiting fisheries resources at MSY or MEY leads to the loss of production and rents from the fisheries. A large part of the EU fisheries are managed based on single species stock assessments; however, in reality, most species are caught together with other species and by different fleets. In multi-species and multi-fleet fisheries, single species assessments, and consequently MSY and MEY reference points, are often not valid, and so the catch recommendations. In this paper it is investigated the MSY and MEY estimation in multi-species and multi-fleet fisheries in comparison to single species assessments.... |
| Tipo: Text |
Palavras-chave: MSY; MEY; Multi-species; Multi-fleet; Fisheries; Bio-economic model. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00129/24000/22053.pdf |
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| Cisse, Abdoul; Doyen, L.; Blanchard, Fabian; Bene, Christophe; Pereau, J. -c.. |
| This paper applies a stochastic viability approach to a tropical small-scale fishery, offering a theoretical and empirical example of ecosystem-based fishery management approach that accounts for food security. The model integrates multi-species, multi-fleet and uncertainty as well as profitability, food production, and demographic growth. It is calibrated over the period 2006–2010 using monthly catch and effort data from the French Guiana's coastal fishery, involving thirteen species and four fleets. Using projections at the horizon 2040, different management strategies and scenarios are compared from a viability viewpoint, thus accounting for biodiversity preservation, fleet profitability and food security. The analysis shows that under certain... |
| Tipo: Text |
Palavras-chave: Small-scale fishery; Biodiversity; Sustainability; Profitability; Food security; Multi-species; Multi-fleet; Stochasticity; Viability; Scenario. |
| Ano: 2015 |
URL: http://archimer.ifremer.fr/doc/00276/38732/37310.pdf |
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| Gomes, Helene; Kersulec, Coralie; Doyen, Luc; Blanchard, Fabian; Cisse, Abdoul; Sanz, Nicolas. |
| Marine ecosystems, biodiversity and fisheries are under pressure worldwide because of global changes including climate warming and demographic pressure. In that regard, many scientists and stakeholders advocate the use of an ecosystem approach for fisheries integrating the numerous ecological and economic complexities at play, instead of focusing on the management of isolated target species. However, the way to operationalize such an ecosystem approach remains challenging, especially from the bioeconomic viewpoint. To achieve this, here we propose a model of intermediate complexity (MICE) relying on multi-species and multi-fleets dynamics. The model also takes into account climate change through a model of envelope for the biological growth of the fish... |
| Tipo: Text |
Palavras-chave: Marine biodiversity; Multi-species; Multi-fleet fishery; Models of Intermediate Complexity (MICE); Climate change; Exclusion principle. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00640/75222/75364.pdf |
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| Carpentier, André; Coppin, Franck. |
| Ifremer carries out a yearly bottom trawl survey named Channel Ground Fish Survey (CGFS) in order to collect essential biological data on major exploited fish species in the Eastern Channel. These data are also provided to feed the indispensable historic series to the yearly assessment of resources. This report presents results of the CGFS surveys for 1997 and 1998, under two aspects : a multispecific approach of the biological assemblages and integrating an interannual analysis, then a monospecific analysis of 7 species of commercial interest, as whiting, pout, cod, red gurnard, plaice, black bream, red mullet. |
| Tipo: Text |
Palavras-chave: Campagne; Chalutage; Manche orientale; Distribution; Abondance; Répartition; Cartographie; Multiespèces; Merlan; Merlangius merlangus; Tacaud; Trisopterus luscus; Morue; Gadus morhua; Grondin rouge; Aspitrigla cuculus; Plie; Pleuronectes platessa; Griset; Spondyliosoma cantharus; Survey; Trawling; Eastern Channel; Distribution; Abundance; Cartography; Multi-species; Whiting; Merlangius merlangus; Pout; Trisopterus luscus; Cod; Gadus morhua; Red gurnard; Aspitrigla cuculus; Plaice; Pleuronectesplatessa; Black bream; Spondyliosoma cantharus; Red mullet. |
| Ano: 1999 |
URL: http://archimer.ifremer.fr/doc/00306/41762/40975.pdf |
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| Nudell, Daniel J.; Kraenzel, David G.; Petry, Timothy A.; Faller, Timothy; Hughes, Harlan G.; Brown, Erin. |
| The number of small commodity livestock slaughter plants in the Upper Northern Plains region continues to decline. Significant factors contributing to this decline include: 1) pressure to consolidate, thereby capturing economies of scale; 2) relatively stringent federal inspection specifications, along with; 3) HACCP (Hazardous Analysis Critical Control Points) requirements. At the same time, consumer demand (markets) for specialty, selected, and exotic meats appears to be growing. For example, the recent market successes in Europe evidenced by the North American Bison Cooperative based in New Rockford, North Dakota. Several alternative livestock producer groups have emerged which include lamb, ratite, elk, deer, goat, poultry, rabbit, specialty beef,... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Multi-species; Specialty meats; Specialty livestock; Alternative livestock; Economies of scale; HACCP (Hazardous Analysis Critical Control Points); Slaughter plants; Processing plants; Community/Rural/Urban Development; Agribusiness. |
| Ano: 1999 |
URL: http://purl.umn.edu/23293 |
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