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Fishery indicators during a predictable aggregation of Atlantic sharpnose sharks Rhizoprionodon terraenovae in the southern Gulf of Mexico: an alternative to assess a heterogeneous data‐poor fishery

Bada Sánchez, Esteban [autor] | Pérez Jiménez, Juan Carlos [autor] | Martínez Cruz, Luis Enrique [autor] | Méndez Loeza, Iván [autor] | Sosa Cordero, Eloy [autor].
Tipo de material: Artículo en línea Artículo en línea Tipo de contenido: Texto Tipo de medio: Computadora Tipo de portador: Recurso en líneaTema(s): Rhizoprionodon terraenovae | Peces | Pesquerías de pequeña escala | Administración de la industria pesqueraTema(s) en inglés: Rhizoprionodon terraenovae | Fishes | Small scale fisheries | Fishery managementDescriptor(es) geográficos: Campeche (México) Nota de acceso: Disponible para usuarios de ECOSUR con su clave de acceso En: Fisheries Management and Ecology. Volumen 26, número 4 (August 2019), páginas 354-364. --ISSN: 1365-2400Número de sistema: 59457Resumen:
Inglés

Small‐scale fisheries in the southern Gulf of Mexico that catch Rhizoprionodon terrae‐ novae (Richardson) are heterogeneous and data‐poor. Fishery‐dependent monitoring was conducted from 2010 to 2017, including a target season during an aggregation of this species to estimate data‐poor fishery indicators. During the target season, the average sizes for females and males (95.3 and 89.8 cm total length, respectively) were recorded, a global male sex bias (1:1.7), the highest percentage of mature sharks for all years (>89%), the highest values of CPUE (20.1 sharks/day) and size‐selectivity higher than the size at maturity. The spawning potential ratio was over 0.6 (refer‐ ence point of 0.71) in the combined (target and non‐target) and target seasons for all years, which suggests that the fishery stock is not healthy. Annual assessment of this fishery can be carried out through monitoring during the target season, where management is more feasible to implement.

Recurso en línea: https://doi.org/10.1111/fme.12366
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Disponible para usuarios de ECOSUR con su clave de acceso

Small‐scale fisheries in the southern Gulf of Mexico that catch Rhizoprionodon terrae‐ novae (Richardson) are heterogeneous and data‐poor. Fishery‐dependent monitoring was conducted from 2010 to 2017, including a target season during an aggregation of this species to estimate data‐poor fishery indicators. During the target season, the average sizes for females and males (95.3 and 89.8 cm total length, respectively) were recorded, a global male sex bias (1:1.7), the highest percentage of mature sharks for all years (>89%), the highest values of CPUE (20.1 sharks/day) and size‐selectivity higher than the size at maturity. The spawning potential ratio was over 0.6 (refer‐ ence point of 0.71) in the combined (target and non‐target) and target seasons for all years, which suggests that the fishery stock is not healthy. Annual assessment of this fishery can be carried out through monitoring during the target season, where management is more feasible to implement. eng

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