Document of bibliographic reference 320439

BibliographicReference record

Type

Bibliographic resource

Type of document

Journal article

BibLvlCode

AS

Title

First records of an egg mass and a paralarva of Thysanoteuthis rhombus (Cephalopoda: Thysanoteuthidae) in the Northeastern Tropical Pacific

Abstract

An egg mass fragment and one paralarva of the squid Thysanoteuthis rhombus found in the Northeastern Tropical Pacific and Gulf of California, Mexico are the first evidence of reproduction of this species in the region. The egg mass fragment was in the disintegration process and contained 30,360 premature hatchlings (96.2%) and 1,192 eggs (3.8%) at different developmental stages. Head chromatophore patterns, buccal crown pigmentation, arm and tentacles indexes, and other morphological characteristics complement previous descriptions of T. rhombus paralarvae. The zooplanktonic community associated with the egg mass was dominated by six species of predatory copepods of the genus Labidocera, Pontella, Oncaea, and Corycaeus which might have actively colonized the egg mass to feed upon the eggs and hatchlings.

WebOfScience code

https://www.webofscience.com/wos/woscc/full-record/WOS:000500960300004

Bibliographic citation

De Silva-Dávila, R.; Avendaño-Ibarra, R.; Palomares-García, R.; Markaida, U. (2019). First records of an egg mass and a paralarva of Thysanoteuthis rhombus (Cephalopoda: Thysanoteuthidae) in the Northeastern Tropical Pacific. Pac. Sci. 73(4): 475-491. https://dx.doi.org/10.2984/73.4.4

Topic

Marine

Is peer reviewed

true