An integrated ecosystem trophic model for the North and Central Gulf of California: An alternative view for endemic species conservation

Díaz-Uribe, Juan Gabriel; Sánchez, Francisco Arreguín; Lercari, Diego; Escalona, Víctor Hugo Cruz; Rejón, Manuel Jesús Zetina; Luna, Pablo Del Monte; Martı́nez-Aguilar, Susana

doi:10.1016/j.ecolmodel.2012.01.009

Cited by 17 publications

(3 citation statements)

References 46 publications

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“…Likewise, applications of Ecopath with Ecosim ecosystem models [18], [19], which consider trophic interactions and dynamic modeling to explore the impacts of fishing [20], found negative impacts on vaquita from the high incidental mortality. However, there has been no concurrent analysis of the effects of management actions on vaquita and Upper Gulf fisheries [15].…”

Section: Introductionmentioning

confidence: 99%

“…Ortiz [16] and Gerrodette and Rojas Bracho [17] analyzed the possibility of recovery of the vaquita using single-species models; they found that eliminating gillnets from the vaquita distribution area gave the most complete protection to vaquita, reducing the probability of extinction to 3% [16] and 2% respectively [17] . Likewise, applications of Ecopath with Ecosim ecosystem models [18] , [19] , which consider trophic interactions and dynamic modeling to explore the impacts of fishing [20] , found negative impacts on vaquita from the high incidental mortality. However, there has been no concurrent analysis of the effects of management actions on vaquita and Upper Gulf fisheries [15] .…”

Section: Introductionmentioning

confidence: 99%

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Exploring Trade-Offs between Fisheries and Conservation of the Vaquita Porpoise (Phocoena sinus) Using an Atlantis Ecosystem Model

Morzaria‐Luna¹,

Ainsworth²,

Kaplan

et al. 2012

PLoS ONE

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BackgroundMinimizing fishery bycatch threats might involve trade-offs between maintaining viable populations and economic benefits. Understanding these trade-offs can help managers reconcile conflicting goals. An example is a set of bycatch reduction measures for the Critically Endangered vaquita porpoise (Phocoena sinus), in the Northern Gulf of California, Mexico. The vaquita is an endemic species threatened with extinction by artisanal net bycatch within its limited range; in this area fisheries are the chief source of economic productivity.Methodology/Principal FindingsWe analyze trade-offs between conservation of the vaquita and fisheries, using an end-to-end Atlantis ecosystem model for the Northern Gulf of California. Atlantis is a spatially-explicit model intended as a strategic tool to test alternative management strategies. We simulated increasingly restrictive fisheries regulations contained in the vaquita conservation plan: implementing progressively larger spatial management areas that exclude gillnets, shrimp driftnets and introduce a fishing gear that has no vaquita bycatch. We found that only the most extensive spatial management scenarios recovered the vaquita population above the threshold necessary to downlist the species from Critically Endangered. The scenario that excludes existing net gear from the 2008 area of vaquita distribution led to moderate decrease in net present value (US$ 42 million) relative to the best-performing scenario and a two-fold increase in the abundance of adult vaquita over the course of 30 years.Conclusions/SignificanceExtended spatial management resulted in the highest recovery of the vaquita population. The economic cost of proposed management actions was unequally divided between fishing fleets; the loss of value from finfish gillnet fisheries was never recovered. Our analysis shows that managers will have to confront difficult trade-offs between management scenarios for vaquita conservation.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Exploring Trade-Offs between Fisheries and Conservation of the Vaquita Porpoise (Phocoena sinus) Using an Atlantis Ecosystem Model

Morzaria‐Luna¹,

Ainsworth²,

Kaplan

et al. 2012

PLoS ONE

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show abstract

“…However, as König et al [58] propose, research frameworks are required that do not exclude fishery assessment tools or basic research; that consider the complexities of each fishery's context, the major system factors, habitat change and adaptability; and that include competition with protected species and non-target species. In this regard, an increasing number of ecosystem modelling researches in Mexican marine ecosystem are dealing with more holistic approaches [25,59,60], some of which have shown to be specially useful in data-poor areas [61].…”

Section: Expanding Knowledgementioning

confidence: 99%

From adoption to implementation? An academic perspective on Sustainable Fisheries Management in a developing country

Espinoza‐Tenorio

Espejel²,

Wolff

2015

Marine Policy

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Ecosystem-Based Fisheries Management of a Biological Corridor Along the Northern Sonora Coastline (NE Gulf of California)

Turk-Boyer

Morzaria‐Luna

Martínez-Tovar

et al. 2014

Estuaries of the World

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An integrated ecosystem trophic model for the North and Central Gulf of California: An alternative view for endemic species conservation

Cited by 17 publications

References 46 publications

Exploring Trade-Offs between Fisheries and Conservation of the Vaquita Porpoise (Phocoena sinus) Using an Atlantis Ecosystem Model

Exploring Trade-Offs between Fisheries and Conservation of the Vaquita Porpoise (Phocoena sinus) Using an Atlantis Ecosystem Model

From adoption to implementation? An academic perspective on Sustainable Fisheries Management in a developing country

Ecosystem-Based Fisheries Management of a Biological Corridor Along the Northern Sonora Coastline (NE Gulf of California)

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