Marine Biology

, Volume 95, Issue 3, pp 323-332

First online:

Reproductive biology of three species of midwater fishes associated with the continental slope of eastern Tasmania, Australia

  • J. W. YoungAffiliated withCSIRO Division of Fisheries Research
  • , S. J. M. BlaberAffiliated withCSIRO Division of Fisheries Research
  • , R. RoseAffiliated withZoology Department, University of Tasmania

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The reproductive biology of Lampanyctodes hectoris (Günther, 1876), Maurolicus muelleri (Gmelin, 1789) and Diaphus danae Tåning, 1932, from continental-slope waters of eastern Tasmania, was examined between April 1984 and June 1985. L. hectoris spawned in winter and M. muelleri spawned from late winter to early summer. Apart from one ripe male, no reproductive activity was detected in D. danae; this species may be an expatriate in these waters. Fecundity was positively correlated with standard length in L. hectoris, but not in M. muelleri. The ratio of females to males increased with length in all three species. The spermatozoa of L. hectoris and D. danae are atypical of vertebrates and have no tail.