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The Biology of the Marquesan Sardine, Sardinella marquesensis

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Title:The Biology of the Marquesan Sardine, Sardinella marquesensis
Authors:Nakamura, Eugene L.
Wilson, Robert C.
Date Issued:Jul 1970
Publisher:University of Hawai'i Press
Citation:Nakamura EL, Wilson RC. 1970. The biology of the Marquesan sardine, Sardinella marquesensis. Pac Sci 24(3): 359-376.
Abstract:Data and samples obtained in the Marquesas Islands from 1954 to
1960 form the basis of this report. Various morphological traits of the Marquesan
sardine, Sardinella marquesensis, are described, and measures of their variation are
given . These sardines were found mostly in bays with clear to slightly turbid and
clear-green to brownish-green water and with substrate of sand, rock, coral rubble,
or a combination of these. The composition of their stomach contents was very
similar to that of plankton obtained in sardine habitats. Ten of the 35 species of
fish taken with sardines in the seine are probable predators of the latter. Sardine
behavior in the field, in captivity, and as tuna bait is noted. Parasites included
hemiurid trematodes, camallanid nematodes, and an ergasilid copepod. Attainment
of sexual maturity is estimated at a standard length of 84 mm. Spawning is believed
to occur throughout the year. Between 1,000 and 8,000 ova are deposited at a
single spawning. The sex ratio favored males. The abundance of Marquesan sardines
appears to be inadequate to sustain commercial live-bait tuna vessels like those
operating from California ports.
Appears in Collections: Pacific Science Volume 24, Number 3, 1970

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