Abundancia, distribución, hábitos alimentarios e interacciones tróficas de cinco especies de lenguados (Pleuronectiformes) en el Pacífico central mexicano/Abundance, distribution, feeding habits and trophic interactions in five flatfish species (Pleuronectiformes) in the Mexican central Pacific

We analyzed the spatial distribution patterns of the five most abundant flatfish species caught by shrimp trawl nets on the continental shelf of the Mexican central Pacific. Food diets and trophic interactions between of the flatfish species are described as well. Flatfishes are distributed between...

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Bibliographic Details
Published in:Latin american journal of aquatic research 2013-07, Vol.41 (3), p.423
Main Authors: Flores-Ortega, Juan R, Godínez-Domínguez, Enrique, González-Sansón, Gaspar, Rojo-Vázquez, Jorge A, López-Prado, Antonio C, Morales-Jauregui, María Y
Format: Article
Language:Spanish
Subjects:
Abundance
Animal populations
Aquatic crustaceans
Aquatic ecology
Bothus leopardinus
Cold season
Continental shelves
Crustacea
Decapoda
Diet
Diets
Distribution
Feeding
Fish
Food availability
Food resources
Interspecific
Marine crustaceans
Marine fish
Pleuronectiformes
Prey
Regions
Seasons
Spatial distribution
Species
Trawl nets
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Summary:We analyzed the spatial distribution patterns of the five most abundant flatfish species caught by shrimp trawl nets on the continental shelf of the Mexican central Pacific. Food diets and trophic interactions between of the flatfish species are described as well. Flatfishes are distributed between 20 and 60 m depth. Bothus leopardinus showed the greatest abundance during the cold season (January-May), the other species did not show significant differences between seasons (cold and warm). The diet of the flatfish species consist of crustaceans, fishes and cephalopods. B. leopardinus and Syacium ovale are consumers of crustaceans, such as crabs, shrimps and stomatopods. Cyclopsetta panamensis, C. quema and Monolene assaedae based their diet in fishes and cephalopods. The feeding strategy of the five species analyzed is considered to be generalist, consuming a high number of preys in both seasons. Between the flatfish species, low values of overlapping in the diets were observed in size class and periods of the year. The flatfish species consume the available food resources and could change the preys consumed, according to prey availability, to avoid intra and interspecific competition. [PUBLICATION ABSTRACT]
ISSN:0718-560X