Abstract:
: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.
journal_name
Biol Lettjournal_title
Biology lettersauthors
Jaspers C,Haraldsson M,Bolte S,Reusch TB,Thygesen UH,Kiørboe Tdoi
10.1098/rsbl.2012.0163subject
Has Abstractpub_date
2012-10-23 00:00:00pages
809-12issue
5eissn
1744-9561issn
1744-957Xpii
rsbl.2012.0163journal_volume
8pub_type
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