Spatial distribution of small pelagic fish larvae in the Gulf of California and its relation to the El Niño 1997-1998

Sardinops caeruleus larvae were almost absent during the El Nino 1997-1998, when the sea surface temperature (SST) increased by 4[degrees]C. After the event, these larvae appeared in high abundance between 18 and 22[degrees]C SST. Engraulis mordax larvae were recorded in high abundance during the El...

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Veröffentlicht in:	Journal of plankton research 2000-08, Vol.22 (8), p.1611-1618
Hauptverfasser:	SANCHEZ-VELASO, L, SHIRASAGO, B, CISNEROS-MATA, M. A, AVALOS-GARCIA, C
Format:	Artikel
Sprache:	eng
Schlagworte:	Abundance Agnatha. Pisces Animal and plant ecology Animal, plant and microbial ecology Animals Autoecology Biological and medical sciences El Nino El Nino phenomena Engraulis mordax Environmental changes Fish Fish larvae Fundamental and applied biological sciences. Psychology Larvae Marine Marine fish Mexico, California Gulf Pelagic fish Sardinops caeruleus Sea surface Spatial distribution Spawning Surface temperature Vertebrata
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Beschreibung
Zusammenfassung:	Sardinops caeruleus larvae were almost absent during the El Nino 1997-1998, when the sea surface temperature (SST) increased by 4[degrees]C. After the event, these larvae appeared in high abundance between 18 and 22[degrees]C SST. Engraulis mordax larvae were recorded in high abundance during the El Nino (17 and 25[degrees]C SST) and afterwards (14 and 22[degrees]C). During the event, they tended to concentrate close to Isla Angel de La Guarda and Isla Tiburon, the coldest zone. The El Nino conditions affected the spawning of S.caeruleus more than E.mordax, with the latter more adapted to strong environmental changes.
ISSN:	0142-7873 1464-3774 1464-3774
DOI:	10.1093/plankt/22.8.1611