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Title Transcription
ナカウミ ニ オケル ドウブツ プランクトン トクニ カイアシルイ ノ ショクセイ ニツイテ
Title Alternative
Feeding Habits of Zooplankton, in Particular, Copepods in Lake Naka-umi
File
language
jpn
Author
Ohtsuka, Susumu
Kunii, Hidenobu
Nishida, Shuhei
Description
Gut contents of five dominant copepods, Acartia hudsonica, A. sinjiensis, Eurytemora paclfica, Sinocalanus tenellus and Oithona davisae, occurring in the Lake Naka-umi from January to September 1997 were examined with scanning electron microscopy. All the species fed on dominant phytoplankters such as Prorocentrum minimum, Cyclotella spp., Thalassiosira spp., Skeletonema costatum, and Minidiscus comicus, and rarely on benthic pennate diatoms, suggesting that these species are opportunistic feeders and show little food segregation within the copepod community. In April 1997 a dinoflagellate Noctiluca scintillans was blooming, and voraciously fed on P. minimum, copepod eggs and zooplankton fecal pellets, which may more or less influence the occurrence of a red tide phytoplankter P. minimum, population growth of pelagic copepods, and flux of sinking particles. The feeding ecology of other dominant zooplankters in Lake Naka-umi, such as appendicularians, chaetognaths, cladocerans, mysids, rotifers and veliger larvae, were reviewed.
Subject
zooplankton
copepods
Lake Naka-umi
Prorocentrum minimum
Cyclotella
Thalassiosira
Noctiluca
Journal Title
Laguna : 汽水域研究
Volume
6
Start Page
89
End Page
105
ISSN
21852995
Published Date
1999-03
NCID
AN10439529
Publisher
島根大学汽水域研究センター
NII Type
Departmental Bulletin Paper
Format
PDF
Text Version
出版社版
OAI-PMH Set
Estuary Research Center
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