NDLI: Challenges of External Insemination in a Tropical Sparid Fish, Acanthopagrus Berda

Content Provider	Springer Nature Link
Author	Molony, Brett W. Sheaves, Marcus J.
Copyright Year	2001
Abstract	Duration of spermatozoa motility and proportion activated were tested under a range of salinities and temperatures in males of the tropical estuarine fish, Acanthopagrus berda, in both laboratory and novel field experiments. A. berda spermatozoa were activated under a wide range of salinities (5–60%) and showed the greatest duration of motility at approximately 30%) in both laboratory and field fish. The duration of activation exceeded 10 minutes at this salinity. However, relatively low activation rates were recorded (50–70%). The long duration of motility, wide range of activation salinities and low proportion of motile spermatozoa may reflect a reproductive style in A. berda of producing at least some motile spermatozoa despite the ambient conditions at spawning. This is discussed in relation to fishes from other habitats and the wide distribution of A. berda.
Starting Page	65
Ending Page	71
Page Count	7
File Format	PDF
ISSN	03781909
Journal	Environmental Biology of Fishes
Volume Number	61
Issue Number	1
e-ISSN	15735133
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2001-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Hydrobiology Zoology Animal Systematics/Taxonomy/Biogeography Environment Nature Conservation
Content Type	Text
Resource Type	Article
Subject	Aquatic Science Ecology, Evolution, Behavior and Systematics

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Challenges of External Insemination in a Tropical Sparid Fish, Acanthopagrus Berda