Nom du corpus

Corpus Systématique Animale

Titre du document

Male mating effort in the viviparous scorpionfish, Sebastiscus marmoratus

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • Reproductive effort
  • internal fertilization
  • copulation
  • body condition
  • Scorpaenidae
Nom du fichier dans la ressource
Poissons_v2b_001387
Auteur(s)
  • Hiroshi Fujita 1
  • Masanori Kohda 1
Affiliation(s)
  • 1) Laboratory of Animal Sociology, Department of Biology, Faculty of Science, Osaka City University, Sumiyoshi-ku, 558, Osaka, Japan
Résumé

Males of some internally fertilizing fishes devote reproductive efforts not only to mating activities but also to sperm production. Male reproductive efforts of the viviparous scorpionfish,Sebastiscus marmoratus, an ambush predator usually remaining on the substrate, were studied at a rocky coast in southern Japan. During the mating season in early winter, males actively visited and courted several females, and interacted aggressively with other males. Females remained stationary. Seasonal changes in somatic and gonad weights suggested that males devote reproductive efforts to such mating activities, rather than to sperm production. Because females almost always ignored frequent courtships from several males, resulting in infrequent copulations, and would rarely copulate with multiple males, sperm competition is not likely to be intensive. Accordingly, males may increase mating efforts while retaining small testis size (max. GSI=0.4%), smaller than that in many externally fertilizing fishes. The reproductive effort of this species is compared with that of other viviparous fishes.

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
  • 4 - ethologie animale
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Ecology, Evolution, Behavior and Systematics
Catégories WoS
  • 1 - science ; 2 - zoology
Identifiant ISTEX
61D16BA6C65B0DE0DB3ED486FA6DAA01F1D1577F
Revue

Ichthyological Research

Année de publication
1996
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
7.472
Sous-corpus
  • Poissons
Type de publication
Journal
ark:/67375/1BB-FLQG45HW-G
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