TY - JOUR
T1 - The ecological role of opisthonema libertate and cetengraulis mysticetus on ecosystem order in the southeastern Gulf of California, Mexico
AU - Hernández-Padilla, Juan Carlos
AU - Ruíz-Barreiro, T. Mónica
AU - Salcedo-Bojórquez, Shelley
AU - Espinosa-Romero, María J.
AU - Zetina-Rejón, Manuel J.
AU - Arreguín-Sánchez, Francisco
N1 - Publisher Copyright:
© Published by Central Fisheries Research Institute (CFRI) Trabzon, Turkey in cooperation with Japan International Cooperation Agency (JICA), Japan.
PY - 2017
Y1 - 2017
N2 - Opisthonema libertate (Pacific thread herring) and Cetengraulis mysticetus (Pacific anchovy) are the two most important herring stocks exploited in the south- eastern Gulf of California (SGC). The certification of these stocks is currently planned for achieving sustainable fisheries. This study analysed the role of these two species in the structure, organization and functioning of the ecosystem in this region. Twenty-four indicators of the ecosystem’s structure and its organization were obtained based on the output of an Ecopath model of the SGC. The relationships of the functional groups with the ecosystem’s indicators were identified using multivariate statistical techniques, and the results indicated similar roles for the Pacific thread herring and the Pacific anchovy in the ecosystem of the SGC. Both species make large contributions to the maintenance of the ecosystem’s order (i.e., its structure and organization). These results are directly related to one of the criteria that are evaluated by the Marine Stewardship Council’s certification process. Defining the remaining biomass level at sea after fishing would guarantee the sustainability of fisheries in the ecosystem.
AB - Opisthonema libertate (Pacific thread herring) and Cetengraulis mysticetus (Pacific anchovy) are the two most important herring stocks exploited in the south- eastern Gulf of California (SGC). The certification of these stocks is currently planned for achieving sustainable fisheries. This study analysed the role of these two species in the structure, organization and functioning of the ecosystem in this region. Twenty-four indicators of the ecosystem’s structure and its organization were obtained based on the output of an Ecopath model of the SGC. The relationships of the functional groups with the ecosystem’s indicators were identified using multivariate statistical techniques, and the results indicated similar roles for the Pacific thread herring and the Pacific anchovy in the ecosystem of the SGC. Both species make large contributions to the maintenance of the ecosystem’s order (i.e., its structure and organization). These results are directly related to one of the criteria that are evaluated by the Marine Stewardship Council’s certification process. Defining the remaining biomass level at sea after fishing would guarantee the sustainability of fisheries in the ecosystem.
KW - Degree of order
KW - Small pelagic
KW - Southeastern Gulf of California
KW - Structural indicators
UR - http://www.scopus.com/inward/record.url?scp=85019691983&partnerID=8YFLogxK
U2 - 10.4194/1303-2712-v17_4_07
DO - 10.4194/1303-2712-v17_4_07
M3 - Artículo
SN - 1303-2712
VL - 17
SP - 713
EP - 724
JO - Turkish Journal of Fisheries and Aquatic Sciences
JF - Turkish Journal of Fisheries and Aquatic Sciences
IS - 4
ER -