Diet and Functional Morphology of Largemouth Bass, Micropterus salmoides, Larvae, Juveniles and Young at Hibiya Imperial Moat in Central Tokyo
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Accession number;04A0009095
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| Title;Diet and Functional Morphology of Largemouth Bass, Micropterus salmoides, Larvae, Juveniles and Young at Hibiya Imperial Moat in Central Tokyo |
| Author;
FUNAHASHI NOBUYUKI
(Tokyo Univ. Fisheries, JPN)
SUZUKI MIDORI
(Tokyo Univ. Fisheries, JPN)
UCHIDA NAOKI
(Tokyo Univ. Fisheries, JPN)
KONO HIROSHI
(Tokyo Univ. Fisheries, JPN)
MOTEKI MASATO
(Tokyo Univ. Fisheries, JPN)
MURAI NORIKO
(Japan Wildlife Res. Center, JPN)
IMAI HITOSHI
(Japan Wildlife Res. Center, JPN)
KUBOTA MASAHIDE
(Japan Wildlife Res. Center, JPN)
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Journal Title;J Tokyo Univ Fish
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Journal Code:G0466A
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ISSN:0040-9014
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VOL.90;NO.;PAGE.1-11(2003)
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| Figure&Table&Reference;FIG.7, REF.27 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;Changes of diet and swimming- and feeding-related characters with size were examined on the largemouth bass, Micropterus salmoides, collected from Hibiya Imperial Moat in central Tokyo in the period from 26 April to 9 July, 2002, the fish sacrificed being 9.0-86.8mm SL (N=173) and 9.9-30.8mm SL (N=40), respectively. The development of swimming- and feeding-related characters showed that the largemouth bass acquired ability enough to swim and feed at 10mm SL, and the swimming- and feeding-ability had completed by 25mm SL. The diet changed from zooplankton to fish in the size of 30-50mm SL. The smallest largemouth bass with fish in the stomach was 30.6mm SL. Among food fishes, "motsugo", a cyprinid Pseudorasbora parva was the most important fish. These indicate that the ability to feed on fish in largemouth bass would be possessed before the size when the fish was first observed in the stomach of largemouth bass in this study. (author abst.) |
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