First record of juveniles of the oceanic squid Thysanoteuthis rhombus (Cephalopoda: Thysanoteuthidae) in the Gulf of Tehuantepec, Northeastern Tropical Pacific
DOI:
https://doi.org/10.3989/graellsia.2023.v79.377Keywords:
Diamond squid, Dosidicus gigas, fisheryAbstract
The diamond squid Thysanoteuthis rhombus Troschel, 1857 is a circum-global oceanic distributed squid, large-sized and notably rare to find; however, in some regions of Asia it is of interest to fisheries. We report here the first record of T. rhombus juveniles in the Gulf of Tehuantepec, Northeastern Tropical Pacific Ocean, along with Dosidicus gigas (d’Orbigny, 1835) juveniles and associated environmental data. The squid were collected in the oceanic zone with upwelling and thermohaline front, with a maximum level of chlorophyll-a (5.5 µg/L), unlike the neritic zone that is saltier, with a higher relative level of oxygen and lower level of chlorophyll-a.
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