人工池においてブルーギルが2種の淡水魚の個体数に及ぼした長期的影響
書誌事項
- タイトル別名
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- Long-term effects of bluegill on the population sizes of two freshwater fishes in artificial ponds
- ジンコウチ ニ オイテ ブルーギル ガ 2シュ ノ タンスイギョ ノ コタイスウ ニ オヨボシタ チョウキテキ エイキョウ
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<p>The long-term effects of bluegill Lepomis macrochirus on two Japanese fishes were investigated in two artificial 28 × 22 m concrete ponds. After recording the population size of Japanese minnow Pseudorasbora parva and Amur goby Rhinogobius kurodai in the ponds from 2002 to 2004, 25 mature bluegill were introduced into each. Bluegill successfully reproduced, increasing to 350 fish in pond A and 229 fish in pond B by October, 2004. The population size of the two Japanese species had not varied greatly prior to bluegill introduction, the population size of minnows reaching maximum levels of 7411 in pond A and 1598 in pond B. However, both species decreased after bluegill introduction. By 2015, Japanese minnow numbered 0 and 1 in the respective ponds, indicating functional extinction. Amur goby also decreased after bluegill introduction, but had not been exterminated by 2015.</p>
収録刊行物
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- 魚類学雑誌
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魚類学雑誌 62 (2), 169-175, 2015
一般社団法人 日本魚類学会
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詳細情報 詳細情報について
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- CRID
- 1390001205513835520
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- NII論文ID
- 130006575893
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- NII書誌ID
- AN00063212
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- ISSN
- 18847374
- 00215090
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- NDL書誌ID
- 026943451
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- IRDB
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可