Nom du corpus

Corpus Systématique Animale

Titre du document

Postembryonic development of the parasitic amphipod Hyperia galba

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Nom du fichier dans la ressource
Eponges_v2b_0334
Auteur(s)
  • Birgit Dittrich
Affiliation(s)
  • Lehrstuhl für Spezielle Zoologie und Parasitologie, Ruhr-Universität Bochum, D-4630, Bochum 1, FRG
  • Biologische Anstalt Helgoland (Meeresstation), D-2192, Helgoland, FRG
Résumé

Hyperia galba Montagu is associated with gelatinous zooplankton as are many species of the Hyperiidea. The hosts preferred in the European seas are the large scyphomedusaeAurelia aurita, Chrysaora hysoscella, Rhizostoma pulmo, Cyanea capillata andCyanea lamarckii, which harbour the first developmental stages. The anamorphic development produces young that are incapable of swimming at the time of hatching. They are characterized by an embryonic abdomen without extremities and external segmentation; the eyes are not completely developed and the mouth is primitive lacking bristles, molar and incisor. The postembryonic development, described in detail, is subdivided into two phases: the pantochelis phase and the protopleon phase; the former comprises only one stage; the latter can be subdivided into four stages. In the course of postnatal development the larval organs are reduced and characters typical of the adult are gradually differentiated.H. galba plays an important role as obligatory endoparasite of scyphomedusae at least during the first stages of development; without a host this amphipod cannot survive, neither benthically nor in the plankton. The transition from life in the female's marsupium to endoparasitism in the jellyfish generally occurs during stage of the postembryonic development which is the first stage of the protopleon phase. The specific adaptations of its reproductive biology to a parasitic mode of life such as moult inhibition under starvation, development of larval organs and the behavioural patterns of the females as well as the young are described. Further, the influence of external factors such as temperature and food supply on the course of development is examined.

Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - invertebres
Catégories Scopus
  • 1 - Physical Sciences ; 2 - Earth and Planetary Sciences ; 3 - General Earth and Planetary Sciences
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - General Environmental Science
Identifiant ISTEX
ECA7B01DCBF7AD11083D6AEDD5D4C42437E052C7
Revue

Helgoländer Meeresuntersuchungen

Année de publication
1987
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
10
Sous-corpus
  • Eponges
Type de publication
Journal
ark:/67375/1BB-2MRKGXFL-B
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