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Item Summary

Title: The distribution and abundance of certain reef fish larvae adjacent to adult habitats in Kaneohe Bay, Hawaii
Authors: Kobayashi, Donald R.
Issue Date: Dec-1987
Publisher: University of Hawaii at Manoa
Citation: Kobayashi, Donald R. The distribution and abundance of certain reef fish larvae adjacent to adult habitats in Kaneohe Bay, Hawaii. Honolulu (HI): University of Hawaii at Manoa, 1987.
Abstract: Plankton samples were taken in Kaneohe Bay, Oahu
with a free-fall plankton net to investigate the finescale
distribution of larval fishes around coral reefs.
Daytime samples indicated that the post flexion larvae of
two gobiids (Psilogobius mainlandi and an unidentified
species, Goby-l) were significantly more abundant at
stations immediately adjacent to reefs (near-reef) than
at stations in open water off the reef. Postflexion
gobiid larvae appear to be capable of resisting
advection/dispersal while remaining in the water column
near suitable adult habitats. The larvae of
Encrasicholina purpurea (Engraulidae) and Foa
brachygrammus (Apogonidae) were significantly more
abundant at off-reef stations than at near-reef stations.
Nighttime samples indicated that the gobiid larvae depend
on visual cues to remain near the reef. The
distributions of Encrasicholina and Foa larvae appeared
related to their vertical positioning.
The near-reef concentrations of the gobiid larvae
indicate that reef-based planktivore pressure may be an
unimportant factor in reef fish larval distributions.
Typical ichthyoplankton surveys which do not sample close
to adult fish habitats would greatly underestimate the
abundance of larvae such as the gobiids.
Pages/Duration: 46 pages
Rights: All UHM dissertations and theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission from the copyright owner.
Appears in Collections:M.S. - Oceanography

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