著者
葛西広海 梅田晴子
出版者
日本プランクトン学会
雑誌
日本プランクトン学会報 (ISSN:03878961)
巻号頁・発行日
vol.68, no.2, pp.36-45, 2021-08-25 (Released:2021-09-02)
参考文献数
27

To standardize the netplankton datasets in terms of sampling gear and sampling depth, previous plankton data obtained from the oceanographic A-line surveys in the western subarctic Pacific were analyzed. Comparable netplankton sampling was carried out using two plankton sampling gears, the mini-Bongo net and the NORPAC (North Pacific Standard) net, installed with 335 µm mesh. Considering the two sampling depths, 0–50 m and 0–150 m, the mean ratio of dry weight (DW) of plankton biomass in unit volume was 2.22±1.19. Using the data of plankton population, the ratio of population at the sampling depths was close to DW, suggesting that the plankton biomass at the sampling depths was comparable. On the other hand, individuals of species/taxa in most samples did not differ significantly in terms of sampling depth and sampling gear. However, plankton populations of some species, mainly distributed below the surface mixing layer, was higher in the layer of 0–150 m than in the layer of 0–50 m. This result indicated the need for careful biomass evaluation for some species at different sampling depths.

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外部データベース (DOI)

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#有明海 における #アサリ #浮遊幼生 の出現調査:海域ごとの浮遊幼生の #分布特性、#季節性 および #年変動 の検討に関する論文が、#日本プランクトン学会報 に発表されました。 https://t.co/ravTf01Bq9 https://t.co/WyIVb6SsTE
Comparison of #biomass and species composition among #netplankton samples from the #western subarctic Pacific, obtained at different sampling depths using different sampling gears, was published in the #Bulletin of the Plankton Society of Japan: https://t.co/MpfrifROW6 https://t.co/2ZNEE7wK91
採集器具と深度が異なる西部 #北太平洋 #亜寒帯海域 の #プランクトンネット 標本群の #生物量 と #種組成 の比較に関する論文が、#日本プランクトン学会報 に発表されました。 https://t.co/ravTf01Bq9 https://t.co/nlXrsSS05K

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