島原湾のコウイカSepia esculentaいかかご漁場における海底底質の影響

• 山口 恭弘

  長崎大学水産学部

• 山根 猛

  近畿大学農学部水産学科

書誌事項

タイトル別名

• Effect of the Bottom Conditions of Fishing Grounds on the Cuttlefish Basket Trap for Golden Cuttlefish Sepia esculenta
• シマバラワン ノ コウイカ Sepia esculentaイカカゴギョジョウ

抄録

In the present study we examined the effect of the bottom condition of fishing grounds on the cuttlefish basket trap. To evaluate which fishing grounds is superior for cuttlefish basket trap we calculated CPUE (kg/ trap/day) at two different fishing grounds (off Ariake Town fishing ground and off Fukae Town fishing ground) in Shimabara Sound in 1996. We carried out the sediment analysis of the bottom samples collected by SM-grab (0.05m2) in each fishing ground. The Mdφ; of off Ariake and off Fukae were -0.3 to 3.0 and 1.0 to 1.5 which were limited range against the whole Shimabara Sound (-5.4 to 5. 6). In addition off Fukae is narrower than off Ariake and the sediment type of off Fukae is medium sand suggesting that bait density of former fishing ground is higher than later fishing ground. In fact CPUE of off Fukae Town fishing ground (0.46) was 2-fold greater than that of off Ariake Town fishing ground (0.23). The significance of differences in CPUE between two fishing grounds was verified by taken together Mam-Whitney test ( p<0.05). These results suggest that the medium Sandy sea bottom is more preferable for capturing of golden cuttlefish by the cuttlefish basket trap.

収録刊行物

• 日本水産工学会誌

  日本水産工学会誌 34 (3), 257-262, 1998

  日本水産工学会

キーワード

• 海底底質
• 中央粒径値
• いかかご
• コウイカ
• CPUE

詳細情報

• CRID: 1390001205864125696
• NII論文ID: 10008274647
• NII論文ID: 10009258477
• NII書誌ID: AN10278554
• DOI: 10.18903/fisheng.34.3_257
• ISSN: 21897131
• ISSN: 09167617
• NDL書誌ID: 4474800
• Web Site: https://agriknowledge.affrc.go.jp/RN/2030660759
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4474800
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • IRDB
  • NDL
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可