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Shallow-water Holothuroids (Echinodermata) of Kosrae, Eastern Caroline Islands

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Title: Shallow-water Holothuroids (Echinodermata) of Kosrae, Eastern Caroline Islands
Authors: Kerr, Alexander M.
Issue Date: Apr 1994
Publisher: University of Hawaii Press
Citation: Kerr AM. 1994. Shallow-water holothuroids (Echinodermata) of Kosrae, eastern Caroline Islands. Pac Sci 48(2): 161-174.
Abstract: Line transects and qualitative surveys were used to determine
species composition and abundance distributions of holothuroids on the fringing
coral reefs of Kosrae, Federated States of Micronesia. On the reef flats, in a total
sample area of 2982 m2 , 9383 holothuroids, comprising 13 species, were
recorded. An additional 13 species were recorded off the transects between
depths of 0 and 30 m. Species richness varied considerably between sites and
physiographic zones and was significantly correlated with reef-flat width.
Holothuria (Halodeima) atra Jaeger was the most abundant species recorded,
composing 92.1 % of the holothuroids on the transects. Other species were
considerably less abundant: H. (Platyperona) difficilis Semper, H. (Thymiosycia)
hilla (Forsskfll), Afrocucumis africana Semper, and Actinopyga mauritiana Quoy
& Gaimard were 6.1, 0.8, 0.3, and 0.2% of the enumerated taxa, respectively.
For all other species, each composed <0.1% of the fauna. Kosrae had very low
densities of most commercially valuable holothuroids; only two marketable
species, Actinopyga mauritiana and H. (Metriatyla) scabra Jaeger were found
there in relative abundance. Twenty-eight species of holothuroids are now
reported from Kosrae.
ISSN: 0030-8870
Appears in Collections:Pacific Science Volume 48, Number 2, 1994

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