Nom du corpus

Corpus Systématique Animale

Titre du document

Life cycles of nemerteans that are symbiotic egg predators of decapod Crustacea: adaptations to host life histories

Lien vers le document
Springer (journals)
Langue(s) du document
Type de document
Mots-clés d'auteur
  • Carcinonemertes
  • Pseudocarcinonemertes
  • Nemertea
  • life cycle
  • egg predator
  • adaptation
  • Crustacea
Nom du fichier dans la ressource
Arthropodes_v2b_01594, Vers_v2b_00527
  • Armand M. Kuris
  • Department of Biological Sciences and Marine Science Institute, University of California, 93106, Santa Barbara, CA, USA

Life cycles of five species of nemerteans that are symbiotic egg predators of decapod crustaceans are reviewed and compared. These life cycles range from the relatively simple life cycle of Carcinonemertes regicides from the red king crab, Paralithodes camtschatica, to the complex life cycle of C. errans on the Dungeness crab, Cancer magister. Increased complexity of these life cycles is evaluated as a series of adaptations to cope with life history features of their respective hosts. These host attributes include seasonal brooding, rapid embryogenesis and brooding in alternate years. Lengthy host brood periods permit autoinfection of the respective nemertean symbionts with resultant loss of many host eggs. Adaptations associated with short or intermittent brooding periods include migrations of regressing adult worms to the gills and their return to the egg mass at the next oviposition, transfer of worms from old to new cuticles at ecdysis, use of male and juvenile female crabs as hosts, and sexual transmission at host copulation. Future research needs are briefly discussed.

Catégories Science-Metrix
  • 1 - natural sciences
  • 2 - biology
  • 3 - marine biology & hydrobiology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - psychologie. psychophysiologie
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Aquatic Science
Catégories WoS
  • 1 - science ; 2 - marine & freshwater biology
Identifiant ISTEX


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