Skip to main content
Download PDF
  • Published:

Über die Entwicklung der Eikapselvolumina bei verschiedenen Opisthobranchier-Arten (Mollusca, Gastropoda)

On the development of egg-capsule volumes in different opisthobranch species (Mollusca, Gastropoda)

Helgoländer wissenschaftliche Meeresuntersuchungen volume 22, pages 326–349 (1971)Cite this article

Abstract

An attempt has been made to estimate the volumes of eggs and egg-capsules employing the formula for the rotation-ellipsoid, first after oviposition, second for the capsules during different stages of embryonic development until hatching. The results of the calculations permitted analysis of: (a) the relationship between egg-case volume and egg volume immediately after oviposition; (b) the size of capsules during development until hatching; (c) the relationship of the capsule volume at hatching in comparison to that after oviposition (enlargement-factor).Placida dendritica shows no increase in capsule volume during development.Gonidoris nodosa, Rostanga rufescens, Trinchesia viridis, Acanthadoris pilosa, Archidoris pseudoargus, Tritonia hombergi andAeolidia papillosa show a distinct increase in capsule volume at the time of velarcilia appearance. The degree of egg-case enlargement and the time of its beginning reveal interspecific differences; within some of the species, both also depend on the number of larvae present in the egg-case. The reasons for such behaviour are not yet known; some possible explanations are discussed.

Zusammenfassung

1. Bei acht Nudibranchierarten wurden auf Grund der ermittelten Durchmesser die Volumina der Eier und Kapseln nach der Ablage sowie der Kapseln während der Entwicklung bis zum Schlüpfen berechnet. Mit diesen Ergebnissen ließen sich folgende Zusammenhänge analysieren: (a) das Größenverhältnis zwischen Eikapselund Eizellvolumen unmittelbar nach der Ablage, (b) die Größenverhältnisse der Kapseln während der Entwicklung und (c) das Verhältnis der Kapselvolumina zum Schlüpftermin zu demjenigen unmittelbar nach Ablage (= Vergrößerungsfaktor).

2.Placida dendritica zeigte keine Volumenzunahme der Kapsel während der Entwicklung.Goniodoris nodosa, Rostanga rufescens, Trinchesia viridis, Acanthodoris pilosa, Archidoris pseudoargus, Tritonia hombergi undAeolidia papillosa weisen hingegen eine deutliche Größenzunahme des Kapselvolumens zu dem Zeitpunkt in der Entwicklung auf, in dem der Keim die Velarcilien ausbildet.

3. Das Ausmaß der Vergrößerung und der genaue Zeitpunkt ihres Eintritts ist je nach Species verschieden und innerhalb gewisser Arten (Tritonia hombergi, Aeolidia papillosa) wiederum abhängig von der Anzahl der Keime pro Kapsel.

4. Mögliche Faktoren, die zu diesen Volumenzunahmen führen, werden diskutiert.

Zitierte literatur

  • Alder, J. &Hancock, A., 1845–1855. A monograph of the British nudibranchiate Mollusca. Ray Soc., London.

    Google Scholar 

  • Bayne, C. J., 1938. Histochemical studies on the egg capsules of eight gastropod molluscs. Proc. malac. Soc. Lond.38, 199–212.

    Google Scholar 

  • Davies, C. D., 1967. Emergence of veliger larvae from eggs in gelatinous masses laid by some Jamaican marine gastropods. Malacologia5, 299–309.

    Google Scholar 

  • 1968. Mechanisms of hatching in aquatic invertebrate eggs. Oceanogrl. mar. biol. A. Rev.6, 325–376.

    Google Scholar 

  • Fretter, V. &Graham, A., 1962. British prosobranchs molluscs, their functional anatomy and ecology. Ray Soc., London, 755 pp.

    Google Scholar 

  • Gohar, H. &Soliman, G., 1963. The biology and development ofHexabranchus sanguineus. (Rüpp &Leuck.). Publs. mar. biol. Stn Ghardaqa12, 219–245.

    Google Scholar 

  • 1967a. The biology and development ofChromodoris inornata Pease (Gastropoda, Nudibranchia) Publs. mar. biol. Stn Ghardaqa14, 77–94.

    Google Scholar 

  • 1967b. The biology and development ofDendrodoris (Doridopsis) fumata (Rüpp &Leuck.) Publs. mar. biol. Stn Ghardaqa,14, 31–54.

    Google Scholar 

  • Hurst, A., 1967. The egg masses and veligers of thirty north-east pacific opisthobranchs. Veliger9, 255–288.

    Google Scholar 

  • O'Donoghue, 1922. Notes on the nudibranchiate Mollusca from the Vancouver Island region. II. The spawn of certain species. Trans. R. Can. Inst.14, 131–143.

    Google Scholar 

  • Ostergaard, J., 1950. Spawning and development of some Hawaian marin gastropods. Pacif. Sci.4, 75–115.

    Google Scholar 

  • Pruvot-Fol, A., 1954. Mollusques opisthobranches. Faune Fr.58, 1–460.

    Google Scholar 

  • Sloan, W., 1964. The accumulation of nitrigenous compounds in terrestrial and aquatic eggs of prosobranch snails. Biol. Bull. mar. biol. Lab., Woods Hole126, 302–307.

    Google Scholar 

  • Thompson, T. E., 1958a. The influence of temperature on spawning inAdalaria proxima (A & H) (Gastropoda, Nudibranchia). Oikos9, 246–252.

    Google Scholar 

  • 1958b. The natural history, embryology, larval biology and post-larval development ofAdalaria proxima (A & H) (Gastropoda, Opisthobranchia). Phil. Trans. R. Soc. (B)242, 1–58.

    Google Scholar 

  • 1961. The structure and mode of functioning of the reproductive organs ofTritonia hombergi (Gastropoda, Opisthobranchia). Q. Jl microse. Sci.102, 1–14.

    Google Scholar 

  • 1962. Studies on the ontogeny ofTritonia hombergi Cuvier (Gastropoda, Opisthobranchia). Phil. Trans. R. Soc. (B)245, 171–218.

    Google Scholar 

  • 1966. Studies on the reproduction ofArchidoris pseudoargus (Rapp) (Gastropoda, Opisthobranchia). Phil. Trans. R. Soc. (B)250, 343–375.

    Google Scholar 

  • 1967. Direct development in a nudibranch,Cadlina laevis, with a discussion of developmental processes in opisthobranchia. J. mar. biol. Ass. U.K.47, 1–22.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Abteilung Anatomie der Rheinisch-Westfälischen Technischen Hochschule Aachen, Aachen, Bundesrepublik Deutschland

    A. Kress

Authors
  1. A. Kress
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Kress, A. Über die Entwicklung der Eikapselvolumina bei verschiedenen Opisthobranchier-Arten (Mollusca, Gastropoda). Helgolander Wiss. Meeresunters 22, 326–349 (1971). https://doi.org/10.1007/BF01611122

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01611122

Helgoland Marine Research

ISSN: 1438-3888

Contact us