| Interspawning interval of wild female three-spined stickleback Gasterosteus aculeatus in Alaska. | |
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MedLine Citation:
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PMID: 20735554 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The interspawning interval, or spawning frequency, of wild three-spined stickleback, Gasterosteus aculeatus, was estimated using histological examination of postovulatory follicles (POF). Females in Alaskan lakes appeared to have as much as a 48 h delay between ovulation and ovoposition, yet the POF method could still be used to estimate the interspawning interval. In two Alaskan lakes the interspawning interval was estimated to range from 2.2 to 7.8 days among individual female G. aculeatus. These estimates were consistent with the range (2.5 to 5 days) of previous estimates among individual females from laboratory observations of spawning G. aculeatus, as well as anecdotal accounts of spawning intervals reported from wild populations in Canada (5-10 days). The interspawning interval of females increased during the course of the spawning season in Alaska, showing that the majority of female spawning activity occurred during the earliest portion of the approximate 6-week reproductive season. The increased interspawning interval appears to be related to a previously reported decrease in body condition in reproductive females during the breeding season. Thus, female G. aculeatus may be unable to sustain the initial rate of reproduction as energy stores that support the rapid growth of vitellogenic oocytes are depleted. |
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Authors:
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N J Brown-Peterson; D C Heins |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of fish biology Volume: 74 ISSN: 1095-8649 ISO Abbreviation: J. Fish Biol. Publication Date: 2009 Jul |
Date Detail:
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Created Date: 2010-08-25 Completed Date: 2011-01-05 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0214055 Medline TA: J Fish Biol Country: England |
Other Details:
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Languages: eng Pagination: 2299-312 Citation Subset: IM |
Affiliation:
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Department of Coastal Science, The University of Southern Mississippi, 703 East Beach Dr., Ocean Springs, MS 39564, USA. nancy.brown-peterson@usm.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Alaska Animals Body Constitution / physiology Female Ovarian Follicle / cytology Ovulation / physiology Reproduction / physiology* Smegmamorpha / physiology* Temperature Time Factors |
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