口永良部島の本村湾における磯魚の垂直分布

広島大学水畜産学部紀要 Volume 17 Issue 2 Page 175-189 published_at 1978-12-25
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Title ( jpn )
口永良部島の本村湾における磯魚の垂直分布
Title ( eng )
Vertical Zonation of Reef Fishes at Honmura Bay of Kuchierabu Island
Creator
Gushima Kenji
Murakami Yutaka
Source Title
広島大学水畜産学部紀要
Journal of the Faculty of Fisheries and Animal Husbandry, Hiroshima University
Volume 17
Issue 2
Start Page 175
End Page 189
Abstract
The study reef lies along the shore line of Honmura bay in Kuchierabu Island and drops off gradually into a sandy bottom 10-20m deep and 150-200m from shore. The reef bottom is strewn with boulder and is dotted with dead coral shelf at the off-shore reef end. In the study reef diurnal wandering fish were observed along three zones partitioned by depth and distance from shore in October 1972 and in February 1973; the shore zone 1-5m deep, the mid-shore zone 5-10m deep, and the off-shore zone 10-20m deep. The fish observed were a total of 4115 specimens of 79 species except for the resident and creeping fishes. The fishes in October and February quite similar in species and specimen composition. But they varied with the depth of water each month. Since a large part of fish shifted vertically toward the shore and mid-shore zones in October and toward the off-shore and mid-shore zones in February, the fish of the off-shore zone in October and of the shore zone in February were different from the others. Most of smaller of immature fishes 5-15cm in total length restricted to the shore and mid-shore zone, but many of the large or adult fish of larger than 15cm in total length ranged over the three zones and comprised more than 90 % to the total specimens of the off-shore fishes.
NDC
Fishing industry. Fisheries [ 660 ]
Language
jpn
Resource Type departmental bulletin paper
Publisher
広島大学水畜産学部
Date of Issued 1978-12-25
Publish Type Version of Record
Access Rights open access
Source Identifier
[ISSN] 0440-8756
[NCID] AN00213563
[NAID] 40003288792