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Title: Penaeid Prawns in Fanga uta Lagoon, Tongatapu 
Author: Braley, Richard D.
Date: 1979-07
Publisher: University of Hawaii Press
Citation: Braley RD. 1979. Penaeid prawns in Fanga uta Lagoon, Tongatapu. Pac Sci 33(3): 315-321.
Abstract: The penaeid prawns Penaeus semisulcatus and Metapenaeus
ensis were surveyed in Fanga'uta Lagoon, Tongatapu, between July 1975 and
August 1976. Catch rates indicate maximum abundance of P. semisulcatus
from September to November and minimum abundance between January
and February. Juveniles were found in March. Maximum abundance of M.
ensis occurred from mid-October to January and minimum abundance from
mid-February to mid-April. Spawning occurred outside the lagoon between
January and March, and juveniles were found in the lagoon in late April. All
areas of the lagoon show a similar pattern of catch rates. Catch rates of
prawns were reduced by one-third during the light phase of the moon, and the
full moon appears to be a factor associated with moulting in M. ensis.
ISSN: 0030-8870

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