New records and biological data of Lolliguncula (Lolliguncula) argus Brakoniecki y Roper, 1985 (Myopsida: Loliginidae) in the Gulf of Tehuantepec, Mexico

Abstract

ABSTRACT. The squid Lolliguncula (Lolliguncula) argus is a rare species, endemic to the Eastern Tropical Pacific Ocean, by their morphological characteristics could be easily confused with other species of the family Lolliguinidae. The distribution and meristic measures remains unclear in spite of recent work in the north part of the distribution. Eleven males and 28 females collected in artisanal fisheries and in the shrimp fishery of the Gulf of Tehuantepec were examined. These records expand species geographic distribution in the southern Mexican Pacific and morphometric and biological data are presented.

Reproductive ecology of the Argus brief squid Lolliguncula argus in the coast off Oaxaca, southern Mexican Pacific

“…On the other hand, the Argus brief squid ( L. argus ), a squid species endemic to the eastern Pacific (Jereb et al ., 2010) has been studied mainly in regard to its taxonomy and biogeography, due to its lower abundance in catches (Granados et al ., 2013; Alejo-Plata et al ., 2016; Costa et al ., 2021). Currently, there are no studies addressing the reproductive biology of L. argus throughout its distribution range (Supplementary Table S1).…”

“…Artisanal fishery is an important commercial activity on the Puerto Angel coast, and is based mostly on trolling lines, surface longlines, driftnets and surface gill nets. In particular, the local cephalopod fishery mostly targets Octopus hubbsorum (Alejo-Plata et al ., 2016), while loliginid squid catch serves for local consumption or is used as bait for sharks and other pelagic fisheries, in conjunction with spoon-fishing nets locally known as ‘chacalmata’. This study aims to provide data on the reproductive ecology of L. argus , with a focus on ovarian development and spawning patterns by means of both histological and oocyte size–frequency analyses.…”