The feeding of American plaice (Hippoglossoides platessoides), Redfish (Sebastes marinus) and Cod (Gadus morhua) in the Flemish Cap during July 1988

A randomly stratified bottom-trawl survey was realized in the Flemish Cap (NAFO Div. 3M) in July 1988. The stomach contents of three species were studied: 320 of American plaice (Hippoglossoides platessoides), 203 of redfish (Sebastes Marinus) and 468 of cod (Gadus morhua). The cod specimens were cl...

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Bibliographic Details
Main Authors: Paz, Xabier, Vázquez-Álvarez, Francisco Javier, Fernández-Arroyo, Anxo, Casas-Sánchez, José Miguel, Cárdenas-González, Enrique de
Format: Report
Language:English
Published: 1989
Subjects:
Pesquerías
Centro Oceanográfico de Vigo
Gadus morhua
North Atlantic
Northwest Atlantic
Sebastes marinus
Online Access:http://hdl.handle.net/10508/634
http://hdl.handle.net/10261/329080
Description
Summary:A randomly stratified bottom-trawl survey was realized in the Flemish Cap (NAFO Div. 3M) in July 1988. The stomach contents of three species were studied: 320 of American plaice (Hippoglossoides platessoides), 203 of redfish (Sebastes Marinus) and 468 of cod (Gadus morhua). The cod specimens were classified taking into account age groups; in the case of other species by length classes. The food items, the prey occurrence index and the diversity index were determined too. The Schoener overlap index was calculated to study the intraspecific diet overlap in cod and the interspecific diet overlap between the three species. The relation between predator size (cod) and prey size (redfish) was also studied.

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