Spawning rhythms of common snook in Florida

  • Taylor R
  • Grier H
  • Whittington J
  • 69

    Readers

    Mendeley users who have this article in their library.
  • 104

    Citations

    Citations of this article.

Abstract

Common snook Centropomus undecimalis were sampled monthly from the Jupiter-Lake Worth area of Florida's Atlantic coast during 1989 and 1991 (1452 fish) and from Tampa Bay on Florida's Gulf of Mexico coast during 1988 and 1989 (2090 fish). Group-synchronous oocyte development was demonstrated. Ovarian maturation began during March or April on both coasts. Spawning was first detected histologically in April during 1989 and 1991 on the Atlantic coast and during May in 1988 and in April in 1989 on the Gulf coast. In each year, spawning ended during October on the Atlantic coast and during September on the Gulf coast. Ovarian histological evidence suggested that individual females may spawn every 1.1-2.5 days between 1400 and about 2000 hours. Final oocyte maturation occurred independently of either tidal cycle or lunar phase, and some common snook were observed in prespawning or spawning condition on every day sampled. Spawning occurred in or near major inlets to the Atlantic Ocean and the Gulf of Mexico, in secondary passes to larger inland bays and bayous, and around nearshore islands.

Author-supplied keywords

  • Annual and diel periodicity
  • Centropomus undecimalis
  • Gonad maturation
  • Reproductive indices
  • Spawning
  • Spawning frequency

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Authors

  • R. G. Taylor

  • H. J. Grier

  • J. A. Whittington

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free