Cambios estacionales en las comunidades de paralarvas de cefalópodos en la costa suroccidental de Baja California Sur (Primavera-otoño de 2003)

Translated title of the contribution: Seasonal changes in paralarval cephalopod communities on the southwest coast of Baja California Sur (Spring and autumn 2003)

Rubén Melvyn García-Guillén, Roxana De Silva-Dávila, Raymundo Avendaño-Ibarra

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

We recorded seasonal changes in the paralarval cephalopod communities collected off the southwestern coast of Baja California Sur, Mexico, during 2003. Simultaneous surface and oblique trawls were carried out with CalCOFI-type nets and CTD casts during spring and autumn 2003 on board the R/V Río Suchiate (Secretaría de Marina), at 85 sampling stations (Magdalena Bay to Cape San Lucas). The paralarval cephalopod community predominantly showed tropical affinity in both seasons. During autumn, 11 tropical taxa, 2 cosmopolitan taxa, and one temperate taxon were incorporated to the paralarval community recorded previously in spring and were associated with the decrease in Subarctic Water and the entrance of warm water masses to the study region, modifying the community indexes between seasons. The canonical correspondence analysis showed 2 groups significantly correlated with chlorophyll a concentrations and zooplankton volumes. Oblique tows provide better information on the paralarval cephalopod community, while surface tows can be an efficient method for monitoring and evaluating the hatching areas of the jumbo Pacific squid Dosidicus gigas through their paralarvae, which are included in the Sthenoteuthis oualaniensis–Dosidicus gigas complex (SD complex).

Translated title of the contributionSeasonal changes in paralarval cephalopod communities on the southwest coast of Baja California Sur (Spring and autumn 2003)
Original languageSpanish
Pages (from-to)107-123
Number of pages17
JournalCiencias Marinas
Volume44
Issue number2
DOIs
StatePublished - 27 Jun 2018

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