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Abundance variation of Porichthys margaritatus (Pisces: Batrachoididae) throughout thermic and bathymetric gradients in the central Mexican Pacific

Abundance variation of Porichthys margaritatus (Pisces: Batrachoididae) throughout thermic and bathymetric gradients in the central Mexican Pacific

dc.creatorGodínez Domínguez, Enrique
dc.creatorAguilar Palomino, Bernabé
dc.creatorGonzález Sansón, Gaspar
dc.date2014-12-18
dc.date.accessioned2016-05-03T15:31:45Z
dc.date.available2016-05-03T15:31:45Z
dc.identifierhttp://revistas.ucr.ac.cr/index.php/rbt/article/view/17767
dc.identifier.urihttps://hdl.handle.net/10669/27151
dc.descriptionThree cruises, one in each of the main stream patterns in the area, were made on the central Mexican Pacific continental slope (May-June 1995, November 1995, and March 1996). Seven trawl sampling sites were defined per cruise, and in each site four bathymetric levels were sampled (20, 40, 60, and 80 m). During the warmest seasons, the highest abundance of Porichthys margaritatus was at 60 m. When the temperature of the bottom water was lower, in March 1996, the highest abundance of P. margaritatus moved towards 40 m. The depths with greatest abundance fluctuated between 18 and 21°C, indicating a narrow temperature preference range. A Gaussian model was used to explain the relation between abundance and temperature.en-US
dc.descriptionSe analizaron tres cruceros de pesca demersal, uno por cada pauta principal de circulación marina en la zona (mayojunio de 1995, noviembre de 1995, y marzo de 1996). Se determinaron siete sitios de muestreo en cada crucero y en cada sitio se muestrearon cuatro estratos batimétricos (20, 40, 60 y 80 m). Durante la época cálida, las mayores abundancias de Porychthys margaritatus se encontraron en 60 m. Cuando la temperatura de fondo fue mínima, durante marzo de 1996, las mayores abundancias se desplazaron a 40 m de profundidad. La temperatura de máximas abundancias fluctuaron entre 18 y 21 °C, lo cual indica un estrecho rango de preferencia térmica. Se propone un modelo Gaussiano para explicar la relación entre la abundancia y la temperaturaes-ES
dc.formatapplication/pdf
dc.languageeng
dc.publisherUniversidad de Costa Ricaen-US
dc.rightsCopyright (c) 2014 International Journal of Tropical Biology and Conservationen-US
dc.sourceRevista de Biología Tropical/International Journal of Tropical Biology and Conservation; Vol. 49 (2) June 2001; 643-646en-US
dc.sourceRevista de Biología Tropical/International Journal of Tropical Biology and Conservation; Vol. 49 (2) June 2001; 643-646es-ES
dc.sourceRevista Biología Tropical; Vol. 49 (2) June 2001; 643-646pt-PT
dc.source2215-2075
dc.source0034-7744
dc.subjectporichthys margaritatusen-US
dc.subjectbathymetric distributionen-US
dc.subjecttemperature-abundance relationen-US
dc.subjectwestern tropicalen-US
dc.subjectpacific unimodal response modelen-US
dc.subjectgaussian distributionen-US
dc.titleAbundance variation of Porichthys margaritatus (Pisces: Batrachoididae) throughout thermic and bathymetric gradients in the central Mexican Pacificen-US
dc.titleAbundance variation of Porichthys margaritatus (Pisces: Batrachoididae) throughout thermic and bathymetric gradients in the central Mexican Pacifices-ES
dc.typeartículo original


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