Please use this identifier to cite or link to this item: http://hdl.handle.net/10125/22562

Unusual Mortality of Krill (Crustacea: Euphausiacea) in Bahı´a de La Paz, Gulf of California.

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dc.contributor.author Lo´pez-Corte´s, David J.
dc.contributor.author Bustillos-Guzma´n, Jose´ J.
dc.contributor.author Ga´rate-Liza´rraga, Ismael
dc.date.accessioned 2012-05-08T22:00:51Z
dc.date.available 2012-05-08T22:00:51Z
dc.date.issued 2006-04
dc.identifier.citation Lo´pez-Corte´s DJ, Bustillos-Guzma´n JJ, Ga´rate-Liza´rraga I. Unusual Mortality of Krill (Crustacea: Euphausiacea) in Bahı´a de La Paz, Gulf of California. Pac Sci 60(2): 235-242.
dc.identifier.issn 0030-8870
dc.identifier.uri http://hdl.handle.net/10125/22562
dc.description v. ill. 23 cm.
dc.description Quarterly
dc.description.abstract Surface aggregations and beach strandings of a species of krill, Nematoscelis difficilis Hansen, were observed in June 2003 at locations along the shore of Bahı´a de La Paz in the Gulf of California. For 10 days before the krill die-off, a steady wind blew from the south at speeds between 4 and 5 m/sec. For that period, satellite images showed water temperatures between 18 and 22 _C along this coast, which is low compared with typical seasonal water temperatures of 26 to 28 _C for June. Phytoplankton biomass, determined by pigment concentration and cell counts, was the highest in the area in June. The diatom Chaetoceros debilis represented more than 96% of the phytoplankton community. Nutrients were in relatively higher concentrations. These data suggest that upwelling conditions occurred and the diatom bloom was in its final phase. Based on this limited data set, we present a hypothetical scenario describing the sea-surface aggregations and beach strandings of N. difficilis.
dc.format.extent 8 p.
dc.language.iso en-US
dc.publisher Honolulu, University of Hawaii Press
dc.relation.ispartofseries vol. 60, no.2
dc.subject.lcsh Natural history--Periodicals.
dc.subject.lcsh Science--Periodicals
dc.subject.lcsh Natural history--Pacific Area--Periodicals.
dc.title Unusual Mortality of Krill (Crustacea: Euphausiacea) in Bahı´a de La Paz, Gulf of California.
dc.type Article
dc.type.dcmi Text
Appears in Collections: Pacific Science, Volume 60, Numbers 2, 2006


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