TY - JOUR
T1 - Building an ecosystems-type fisheries management approach for the Campecheh Bank, subarea in the Gulf of Mexico Large Marine Ecosystem
AU - Arreguín-Sánchez, Francisco
AU - del Monte Luna, Pablo
AU - Zetina-Rejón, Manuel Jesús
AU - Tripp-Valdez, Arturo
AU - Albañez-Lucero, Mirtha O.
AU - Mónica Ruiz-Barreiro, T.
N1 - Publisher Copyright:
© 2017 Elsevier Ltd
PY - 2017/6
Y1 - 2017/6
N2 - In this contribution, we discuss the need for an ecosystems-type fisheries management approach, especially when the Campeche Bank subarea of the Gulf of Mexico Large Marine Ecosystem (LME) is strongly influenced by environmental changes. In these circumstances, the carrying capacity and the subarea structure and its organization do not reflect the stability assumed for conventional stock assessment approaches. The subarea re-organizes in response to environmental change, and sustainable fishing and management must be adapted. This necessity is particularly relevant under the effects of climate change since those changes have a defined tendency. We also show evidence of a clear signal of climate change effects on the Campeche Bank subarea of the Gulf of Mexico LME and how changes in fish stocks can be misinterpreted under conventional stock assessment methods. Moreover, evidence is shown regarding how the subarea has evolved during the last six decades, giving a clear example of re-organization. Management schemes are discussed briefly; addressing why they fail and suggesting an approach to identify a limiting subarea reference level termed noxicline, which represents the limit of the loss of biomass of the components of a subarea after which the domain deteriorates. The noxicline also permits identification of the corresponding harvest rate limit at the stock level. As an average the harvest rate to be applied in the Campeche Bank subarea should be no larger than 40%. This approach can be useful under the effects of climate change, since harvest rates reflect the proportion of the stock that is extracted, regardless of its size.
AB - In this contribution, we discuss the need for an ecosystems-type fisheries management approach, especially when the Campeche Bank subarea of the Gulf of Mexico Large Marine Ecosystem (LME) is strongly influenced by environmental changes. In these circumstances, the carrying capacity and the subarea structure and its organization do not reflect the stability assumed for conventional stock assessment approaches. The subarea re-organizes in response to environmental change, and sustainable fishing and management must be adapted. This necessity is particularly relevant under the effects of climate change since those changes have a defined tendency. We also show evidence of a clear signal of climate change effects on the Campeche Bank subarea of the Gulf of Mexico LME and how changes in fish stocks can be misinterpreted under conventional stock assessment methods. Moreover, evidence is shown regarding how the subarea has evolved during the last six decades, giving a clear example of re-organization. Management schemes are discussed briefly; addressing why they fail and suggesting an approach to identify a limiting subarea reference level termed noxicline, which represents the limit of the loss of biomass of the components of a subarea after which the domain deteriorates. The noxicline also permits identification of the corresponding harvest rate limit at the stock level. As an average the harvest rate to be applied in the Campeche Bank subarea should be no larger than 40%. This approach can be useful under the effects of climate change, since harvest rates reflect the proportion of the stock that is extracted, regardless of its size.
KW - Campeche Bank subarea
KW - Climate changes
KW - Ecosystem
KW - Management
KW - Noxicline
UR - http://www.scopus.com/inward/record.url?scp=85018654344&partnerID=8YFLogxK
U2 - 10.1016/j.envdev.2017.03.004
DO - 10.1016/j.envdev.2017.03.004
M3 - Artículo
SN - 2211-4645
VL - 22
SP - 143
EP - 149
JO - Environmental Development
JF - Environmental Development
ER -