Document Detail

Ctenophore population recruits entirely through larval reproduction in the central Baltic Sea.
MedLine Citation:
PMID:  22535640     Owner:  NLM     Status:  MEDLINE    
The comb jelly Mertensia ovum, widely distributed in Arctic regions, has recently been discovered in the northern Baltic Sea. We show that M. ovum also exists in the central Baltic but that the population consists solely of small-sized larvae (less than 1.6 mm). Despite the absence of adults, eggs were abundant. Experiments revealed that the larvae were reproductively active. Egg production and anticipated mortality rates suggest a self-sustaining population. This is the first account of a ctenophore population entirely recruiting through larval reproduction (paedogenesis). We hypothesize that early reproduction is favoured over growth to compensate for high predation pressure.
Cornelia Jaspers; Matilda Haraldsson; Sören Bolte; Thorsten B H Reusch; Uffe H Thygesen; Thomas Kiørboe
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2012-04-25
Journal Detail:
Title:  Biology letters     Volume:  8     ISSN:  1744-957X     ISO Abbreviation:  Biol. Lett.     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-09-12     Completed Date:  2013-02-11     Revised Date:  2013-11-06    
Medline Journal Info:
Nlm Unique ID:  101247722     Medline TA:  Biol Lett     Country:  England    
Other Details:
Languages:  eng     Pagination:  809-12     Citation Subset:  IM    
Centre for Ocean Life, DTU-Aqua, Technical University of Denmark, Kavalergården 6, 2920 Charlottenlund, Denmark.
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MeSH Terms
Baltic States
Ctenophora / physiology*
DNA / metabolism
Larva / physiology*
Metamorphosis, Biological
Oceans and Seas
Predatory Behavior
Reg. No./Substance:

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