Title: The suprapopulation dynamics of Lernaeocera branchialis and L-lusci in the Oosterschelde: Seasonal abundance on three definitive host species
Authors: VanDamme, PA ×
Geets, A
Hamerlynck, O
Ollevier, Frans #
Issue Date: Feb-1997
Publisher: Academic press ltd
Series Title: Ices journal of marine science vol:54 issue:1 pages:24-31
Abstract: Quantitative samples of the demersal fish fauna of the Oosterschelde were taken between May 1988 and July 1989, The instantaneous mortality rates of the 1988 year classes of whiting (Merlangius merlangus L.), sand goby (Pomatoschistus minutus Pallas) and bib (Trisopterus luscus L.) were estimated at 0.017 d(-1), 0.014 d(-1) and 0.018 d(-1), respectively. These three species were examined for the presence of mesoparasitic pennellid copepods. Combination of host population densities and parasite infection intensities allowed for estimation of parasite population density Whiting were infected with Lernaeocera branchialis shortly after their arrival (April-May) in the Oosterschelde. By the end of the year approximately 80% of the first year class whiting were infected. Spawning sand gobies were infected with Lernaeocera lusci in May and June. Though the prevalence of L. lusci on juvenile sand gobies in autumn was low, the parasite population density in this period was high. First year class bib were mainly infected by L. lusci after their transition from a pelagic to a demersal behaviour in August. It is suggested that L. branchialis has one generation each year, whereas L. lusci has two. A biological model of the life cycle of both parasite species is presented. (C) 1997 International Council for the Exploration of the Sea.
ISSN: 1054-3139
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Ecology, Evolution and Biodiversity Conservation Section
× corresponding author
# (joint) last author

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