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Why is there no sperm competition in a pipefish with externally brooding males? Insights from sperm activitation and morphology
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2006 (English)In: Journal of Fish Biology, ISSN 0022-1112, E-ISSN 1095-8649, Vol. 68, no 3, 958-962 p.Article in journal (Refereed) Published
Abstract [en]

Nerophis ophidion sperm activation and morphology were investigated with the aim of explaining the apparent lack of sperm competition in this syngnathid with externally brooding males. Nerophis ophidion sperm were activated by a mixture of ovarian fluid and sea water, but not by sea water alone. This indicated that sperm were not shed into the water but needed to be released near the eggs, which probably restrained sperm competition.

Place, publisher, year, edition, pages
2006. Vol. 68, no 3, 958-962 p.
Keyword [en]
fertilization mode, paternity, pipefish, sperm competition, Syngnathidae
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URN: urn:nbn:se:uu:diva-22917DOI: 10.1111/j.0022-1112.2006.00971.xOAI: oai:DiVA.org:uu-22917DiVA: diva2:50690
Available from: 2007-01-23 Created: 2007-01-23 Last updated: 2011-03-07Bibliographically approved

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Berglund, Anders
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Animal Ecology
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