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1 April 2013 Rapid Reproductive Analysis and Length-Dependent Relationships of Lutjanus biguttatus (Perciformes: Lutjanidae) from Papua New Guinea
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Abstract

We describe a simple, inexpensive method for field-based histological analysis of fish gonads, and we used this method to describe the reproductive biology of the small snapper Lutjanus biguttatus from a remote area in Papua New Guinea (i.e., where laboratory equipment is limited and electrical service is lacking). We estimate male L50 at 13 cm FL and female L50 at 17 cm FL. Sex ratio is not significantly different from 1 : 1. There is no evidence for hermaphroditism. Fork length is a linear function of total length, FL = -0.1823 0.9647(TL), and weight is a cubic function of fork length, W = 0.0129(FL)3.0049. This information was generated during a 2-week period when the majority of our time was occupied by fish surveys. Our analyses were limited by availability of specimens (not processing time); therefore the methods we employed can help fill one of the information voids that preclude life-history-based management of coral-reef fishes.

© 2013 by University of Hawai‘i Press
Ken Longenecker, Ross Langston, and Holly Bolick "Rapid Reproductive Analysis and Length-Dependent Relationships of Lutjanus biguttatus (Perciformes: Lutjanidae) from Papua New Guinea," Pacific Science 67(2), 295-301, (1 April 2013). https://doi.org/10.2984/67.2.11
Accepted: 11 August 2012; Published: 1 April 2013
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