Nom du corpus

Corpus Systématique Animale

Titre du document

Reproductive biology of Awaous guamensis , an amphidromous Hawaiian goby

Lien vers le document
Springer (journals)
Langue(s) du document
Type de document
Mots-clés d'auteur
  • Fecundity
  • Fish reproduction
  • Gobiidae
  • Iteroparity
  • Oocyte maturation
  • Spawning season
  • Stream
  • Fish
  • Awaous stamineus
  • Lentipes concolor
  • Kuhlia sandvicensis
  • Sicyopteris stimpsoni
Nom du fichier dans la ressource
  • Phyllis Y. Ha 1
  • Robert A. Kinzie III 2
  • 1) U.S. Fish and Wildlife Service, P.O. Box 50167, 96850, Honolulu, HI, U.S.A.
  • 2) Department of Zoology, University of Hawaii at Manoa, 2538, The Mall, 96822, Honolulu, HI, U.S.A.

Synopsis: Spawning season, size at first reproduction, oocyte maturation, and fecundity ofAwaous guamensis, an amphidromous Hawaiian goby, were studied from June 1989 through May 1991 in the Wainiha River, Kau'ai, Hawai'i. Female fish larger than 73 mm standard length (SL) had mature gonads from August through December in 1989 and 1990. Gonadosomatic index (GSI) values for mature females ranged from 0.2 to 14.5 during the spawning season. Male fish larger than 64 mm SL had elevated GSI values from June 1989 through December 1989 and from August 1990 through December 1990. Mature sperm were found in two male fish collected in January and February. GSI values for mature males ranged from less than 0.01 to 4.0 in the spawning season. Size-frequency distributions of measurements of vitellogenic oocyte diameters and microscopic observations of oocytes indicated this species has group-synchronous oocyte development. Ovarian maturation stages examined over a 29-month period suggest that members of the stock spawned at different times within the spawning season, although mass spawning events have been documented for this species. Estimates of clutch sizes from nests measured in situ were comparable to estimates of potential fecundity from in vitro examination of ovaries, and indicated that female fish deposited an entire clutch during a spawning event. No evidence for multiple spawning by an individual fish in a single season was found. However, microscopic observations of brown bodies in some ovaries suggested that individual fish probably spawn more than once in a lifetime.

Catégories Science-Metrix
  • 1 - applied sciences
  • 2 - agriculture, fisheries & forestry
  • 3 - fisheries
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Aquatic Science
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Ecology, Evolution, Behavior and Systematics
Catégories WoS
  • 1 - science ; 2 - marine & freshwater biology
  • 1 - science ; 2 - ecology
Identifiant ISTEX

Environmental Biology of Fishes

Année de publication
Présence de XML structuré
Version PDF
Score qualité du texte
  • Poissons
Type de publication
Powered by Lodex 9.3.8