Main Article Content

Life cycle of chokka-squid <i>Loligo reynaudii</i> in South African waters


M.R. Lipiński
J.S.F. van der Vyver
P Shaw
W.H.H. Sauer

Abstract

This short note summarises past and current knowledge of the life cycle of chokka-squid Loligo reynaudii d’Orbigny, 1845, in South African waters. Prior to approximately 2010, the chokka-squid stock was considered simple and uniform, with one paralarval pool, the drift of paralarvae westwards, one main nursery area and one main, long spawning migration of adult squid eastwards, back to the main spawning grounds. Based on new information, this life-history scheme has been revised. Genetically, the stock is uniform; however, morphologically, it comprises three main geographic groups. It is proposed that the differences between the groups originate from many different paralarval events and that short (not long) migrations dominate the life cycle.

Keywords: life-history revision, migration, paralarvae, stock identity


Journal Identifiers


eISSN: 1814-2338
print ISSN: 1814-232X