Reproductive strategies in female polar and deep-sea bobtail squid genera Rossia and Neorossia (Cephalopoda: Sepiolidae)


LAPTIKHOVSKY V. V. , NIGMATULLIN C. M. , HOVING H. J. T. , Onsoy B., SALMAN A. Y. , ZUMHOLZ K., ...More

POLAR BIOLOGY, vol.31, no.12, pp.1499-1507, 2008 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 31 Issue: 12
  • Publication Date: 2008
  • Doi Number: 10.1007/s00300-008-0490-4
  • Title of Journal : POLAR BIOLOGY
  • Page Numbers: pp.1499-1507
  • Keywords: Neorossia, Rossia, Spawning, Reproduction, Polar, Deep-sea, SEPIETTA-OWENIANA CEPHALOPODA, EGG SIZE, FECUNDITY, BIOLOGY, MATURATION, CUTTLEFISH, MOLLUSCA, CLUTCH

Abstract

Female reproductive features have been investigated in five polar and deep-sea bobtail squid genera Rossia and Neorossia (R. macrosoma, R. moelleri, R. pacifica, N.c. caroli and N.c. jeannae). These species are characterized by asynchronous ovary maturation, very large eggs (> 10% ML), fecundity of several hundred oocytes, very high reproductive output, and continuous spawning with low batch fecundity. This adaptive complex of reproductive traits evolved in these small animals as an optimum strategy for polar and deep-water habitats.