Journal of Plankton Research Vol.22 no.8 pp.1611-1618, 2000
© Oxford University Press 2000
Short Communication |
Spatial distribution of small pelagic fish larvae in the Gulf of California and its relation to the El Niño 19971998
1 Centro Interdisciplinario de Ciencias Marinas, Ave. Politécnico Nacional s/n, CP 23000, La Paz BCS, México, 2 INP, CRIP-Guaymas. Calle 20 Sur 605, Col. Cantera, CP 85400, Guaymas, Son., México
Sardinops caeruleus larvae were almost absent during the El Niño 19971998, when the sea surface temperature (SST) increased by 4°C. After the event, these larvae appeared in high abundance between 18 and 22°C SST. Engraulis mordax larvae were recorded in high abundance during the El Niño (17 and 25°C SST) and afterwards (14 and 22°C). During the event, they tended to concentrate close to Isla Angel de La Guarda and Isla Tiburón, the coldest zone. The El Niño conditions affected the spawning of S.caeruleus more than E.mordax, with the latter more adapted to strong environmental changes.
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