|Title:||Migratory patterns, vertical distributions and diets of Abralia veranyi and Abraliopsis morisii (Cephalopoda: Enoploteuthidae) in the eastern North Atlantic||Authors:||Guerra Marrero, Airam Manuel
Sarmiento Lezcano, Airam Nauzet
Pino, Angelo Santana Del
Castro, José J.
|UNESCO Clasification:||240119 Zoología marina
240102 Comportamiento animal
|Issue Date:||2020||Journal:||Journal of Molluscan Studies||Abstract:||Abralia veranyi and Abraliopsis morisii were the most abundant cephalopods caught during epipelagic and mesopelagic surveys off the Canary Islands and accounted for 26% and 35% of the cephalopod catch, respectively. Diel vertical migration patterns were observed in both species. At night, A. veranyi was recorded at depths as shallow as 38-90 m, whereas Abraliopsis morisii occurred at depths of 98-219 m. As individuals grow in mantle length, their diet changes substantially. Abraliopsis morisii showed ontogenetic shifts at 22.9 mm and 35.3 mm dorsal mantle length (DML), while A. veranyi showed ontogenetic shifts at 20.5 mm and 30.9 mm DML. Prior to the first ontogenic shift, both species fed mainly on copepods and mysids. After this shift they fed on larger prey, such as decapods and fish; the diets of larger individuals also contained cephalopods.||URI:||http://hdl.handle.net/10553/72728||ISSN:||0260-1230||DOI:||10.1093/mollus/eyz029||Source:||Journal of Molluscan Studies [ISSN 0260-1230], v. 86 (1), p. 27-34, (Febrero 2020)|
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