Distribución y abundancia de peces linterna alrededor de isla San Pedro Martir, golfo de California, durante el año 2008

• Published in: Latin american journal of aquatic research 2013-07, Vol.41 (3), p.387
• Main Authors: Santana-Iturrios, Mariana Diaz, Palacios-Salgado, Deivis S, Salinas-Zavala, Cesar A
• Format: Article
• Language: Spanish
• ISSN: 0718-560X; 0718-560X

Myctophids (Myctophidae) are a group of abundant mesopelagic fishes in the world's oceans and are known as the main feeding resource for several high trophic level predators. Changes in abundance may be related to population size of some commercially important species that feed on them. Only two of the myctophid species reported for the Gulf of California were found in the present study: Benthosema panamense and Triphoturus mexicanus. The highest abundance and biomass of myctophids were found during the warm season (June and September), with B. panamense being the most abundant species (20,954 ind 1000 [m.sup.-3]), as well as the one with highest biomass (17,165.8 g 1000 [m.sup.-3]). B. panamese had a size mode interval of 35-40 mm, while T. mexicanus presented a size mode interval of 40-45 mm; both species had negative allometric growth. During the temperate season (February and April) B. panamense was distributed in the northwest, west, and southern regions around the island, while T. mexicanus was found in the north, west, and southern regions. During the warm season B. panamense was found distributed around the entire island and T. mexicanus was found in the west, south, and east regions of the island. These species are common around San Pedro Martir Island, with the highest values of abundance and biomass occurring during summer upwelling's. Keywords: abundance, Benthosema panamense, Triphoturus mexicanus, myctophids, Gulf of California. Los mictofidos (Myctophidae), son un grupo de peces mesopelagicos abundantes en los oceanos del mundo, y se identifican como el principal recurso alimenticio de depredadores con alto nivel trofico. Los cambios en su abundancia pueden relacionarse con el tamano poblacional de algunas especies de importancia comercial que depredan sobre ellos. En el presente trabajo, de las especies de mictofidos que se reportan dentro del golfo de California, solo se encontraron dos: Benthosema panamense y Triphoturus mexicanus. En la temporada calida (junio y septiembre) se presentaron las mayores abundancias y biomasa, siendo B. panamense la especie mas abundante (20,954 ind 1000 [m.sup.-3]), asi como tambien la de mayor biomasa (17,165.8 g 1000 [m.sup.-3]). B. panamense se encontro con una moda en el intervalo de tallas de 35-40 mm, T. mexicanus presento una moda en el intervalo de tallas de 40-45 mm; ambas especies mostraron un tipo de crecimiento alometrico negativo. Con respecto a su distribucion, durante la temporada templada (f