IMIS | Flanders Marine Institute
 

Flanders Marine Institute

Platform for marine research

IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (0): add | show Printer-friendly version

On the biology of Appendicularia of the southeastern North Sea
Paffenhöfer, G.-A. (1976). On the biology of Appendicularia of the southeastern North Sea, in: Persoone, G. et al. (Ed.) Proceedings of the 10th European Symposium on Marine Biology, Ostend, Belgium, Sept. 17-23, 1975: 2. Population dynamics of marine organisms in relation with nutrient cycling in shallow waters. pp. 437-455
In: Persoone, G.; Jaspers, E. (Ed.) (1976). Proceedings of the 10th European Symposium on Marine Biology, Ostend, Belgium, Sept. 17-23, 1975: 2. Population dynamics of marine organisms in relation with nutrient cycling in shallow waters. IZWO/Universa Press: Wetteren. ISBN 90-6281-002-0. 712 pp., more

Available in Author 
    VLIZ: Proceedings [4869]
Document type: Conference paper

Keyword
    Marine

Author  Top 
  • Paffenhöfer, G.-A.

Abstract
    The densities of the appendicularians Oikopleura dioica and Fritillaria borealis and their potential food in the North Sea nearby the island of Sylt were investigated for 1 year. In conjunction with these studies feeding, growth, mortality and reproduction were measured in the laboratory at different phytoplankton concentrations at 13 °C. Generation times and fecundity of O. dioica were determined at temperatures between 7 and 18 °C in seawater passing through a 180pm mesh. The results indicate that generation times of 3-3.5 weeks and a fecundity of close to 250 eggs per female are sufficient to keep the standing stock of Appendicularia even during late winter and early spring, when they are preyed upon by larvae of plaice, Pleuronectes platessa L., and sandeel, Ammodytes sp., in the Southern Bight of the North Sea.

All data in IMIS is subject to the VLIZ privacy policy Top | Author