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Item Description Leary, Daniel F. en_US Murphy, Garth I. en_US Miller, Marlyn en_US 2008-03-25T02:43:27Z 2008-03-25T02:43:27Z 1975-04 en_US
dc.identifier.citation Leary DF, Murphy GI, Miller M. 1975. Fecundity and length at first spawning of the Hawaiian anchovy, or Nehu (Stolephorus purpureus Fowler) in Kaneohe Bay, Oahu. Pac Sci 29(2): 171-180. en_US
dc.identifier.issn 0030-8870 en_US
dc.description.abstract Fecundity, length at first spawning, and spawning seasonality of Stolephorus purpureus were determined by examining preserved ovarian eggs and fish captured throughout a 4-year period. Fecundity was estimated from the number of eggs in the most advanced ovarian mode after it was determined that all these eggs hydrated and were spawned. Fecundity (Y) was related to fish weight (X) by the hyperbolic function, Y = X/(0.0049-0.0033X). According to this relationship, a fish having a weight equal to the mean for the population contains 566 eggs/g of fish weight. Large variations in fecundity from year to year were attributed primarily to environmental factors whose influence on reproduction by Stolephorus purpureus has not been studied. Length frequencies of ovarian eggs were bimodal, but the smaller modes remained stationary regardless of the position of the larger modes. This was interpreted as evidence that individual fish spawned only once per year. From data on egg length versus fish length it was estimated that fish were first capable of spawning when 35 mm (standard length); the smallest fish observed to contain hydrated eggs was 37.8 mm. Captured fish containing hydrated eggs were rare, 1.1 percent of 1,735 adult females examined. Spawning occurred year around but the incidence was higher during the spring and summer than during the remainder of the year. en_US
dc.language.iso en-US en_US
dc.publisher University of Hawai'i Press en_US
dc.title Fecundity and Length at First Spawning of the Hawaiian Anchovy, or Nehu (Stolephorus purpureus Fowler) in Kaneohe Bay, Oahu en_US
dc.type Article en_US
dc.type.dcmi Text en_US

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