小田和湾の藻場におけるウミタナゴ類3種の摂餌生態

書誌事項

タイトル別名
  • Feeding Ecology of Three Species of Embiotocid Fishes in the <i>Zostera marina</i> Belt of Odawa Bay
  • オダワワン ノ ソウジョウ ニ オケル ウミタナゴルイ 3シュ ノ セツジ セ

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抄録

1) The diet and feeding ecology of embiotocid fishes around Odawa Bay, Kanagawa Prefecture, are examined on the basis of qualitative and quantative analyses of the gut contents.<br> 2) The main food items of the 0+age group is gammarid amphipods in D. viridis, gammarids and caprellid amphipods in D. temmincki and copepods in N. ransonneti.<br> 3) The amount of food intake per body weight is shown to be 2-3% in D. viridis, 2-5% in D. temmincki and 1-4% in N. ransonneti.<br> 4) The seasonal change of the food items utilized by the 0+age group of D. viridis and D. temmincki correspond fairly well to that of relative abundance of phytal animals in the Zostera belt.<br> 5) The 1+age group of D. viridis and D. temmincki utilize a wider variety of types and larger sized food items which are not always predominant in the Zostera belt.<br> 6) The food items of N. ransonneti show no seasonality and N. ransonneti does not seem to depend on phytal animals in the Zostera belt as food resources.

収録刊行物

  • 日本水産学会誌

    日本水産学会誌 46 (12), 1469-1476, 1980

    公益社団法人 日本水産学会

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