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Spatial partitioning between species of the phytoplankton-feeding guild on an estuarine intertidal sand flat and its implication on habitat carrying capacity
http://hdl.handle.net/10069/17909
http://hdl.handle.net/10069/17909f4caf99a-563c-45c4-996e-26b769066e1e
名前 / ファイル | ライセンス | アクション |
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ECSS78_727.pdf (1.5 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2008-06-27 | |||||
タイトル | ||||||
タイトル | Spatial partitioning between species of the phytoplankton-feeding guild on an estuarine intertidal sand flat and its implication on habitat carrying capacity | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | tidal flats | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | carrying capacity | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | phytoplankton | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | suspension-feeding clams | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | thalassinidean shrimps | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | bioturbation | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Tamaki, Akio
× Tamaki, Akio× Nakaoka, Ayumi× Maekawa, Hideki× Yamada, Fumihiko |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The fishery yield of Manila clams, Ruditapes philippinarum, increased considerably in the 1970s but has decreased rapidly since the middle 1980s on extensive intertidal sand flats in Ariake Sound (Kyushu, Japan). A survey conducted in 2004 on a 3.4-km2 sand flat located in the central part of the Sound (Shirakawa sand flat) revealed four dominant species: two thalassinidean shrimps (Upogebia majorand Nihonotrypaea japonica), which are deep-reaching burrow dwellers with strong bioturbation activities, and two bivalves (Mactra veneriformis and R. philippinarum). All four species belong to a phytoplankton (diatom)-feeding guild. In the late 1970s, the Manila clam population prevailed in high densities over the entire sand flat, whereas its distribution was restricted to the lowest quarter of the shore in 2004. In contrast, the population sizes and zones of occurrence of the other phytoplankton feeders have expanded in the absence of R. philippinarum, perhaps an indication of competitive release. After establishment, effects of the thalassinidean shrimps on sediment stability appear to have further reduced clam abundances. Across the sand flat in 2004, wet weight population biomass estimates for N. japonica, U. major, M. veneriformis, and R. philippinarum (whole body for shrimps and soft tissue for bivalves) were 304, 111, 378, and 234 tonnes, respectively. Based on Manila clam fishery yield records from Shirakawa, the carrying capacity of the Shirakawa sand flat in the late 1970s was estimated to be two times greater than the sum value for the whole phytoplankton-feeding guild in 2004. It is hypothesized that (1) the amount of phytoplankton determines the carrying capacity for the benthic community on the Shirakawa sand flat, with both phytoplankton and benthic biomass at maxima in the late 1970s, and (2) the subsequent increases in competition for space have caused further declines in the Manila clam population biomass to approximately one-eighth of its past value. | |||||
書誌情報 |
Estuarine, Coastal and Shelf Science 巻 78, 号 4, p. 727-738, 発行日 2008-07 |
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出版者 | ||||||
出版者 | Elsevier Science | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 02727714 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10620517 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1016/j.ecss.2008.02.009 | |||||
権利 | ||||||
権利情報 | Copyright (c) 2008 Elsevier Inc. All rights reserved. | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Estuarine, Coastal and Shelf Science, 78(4), pp.727-738; 2008 |