Crabs assimilating cellulose materials drive the detritus food chain in a mangrove estuary
Crabs assimilating cellulose materials drive the detritus food chain in a mangrove estuary
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螃蟹吸收纤维素材料驱动红树林河口的碎屑食物链
DOI:
10.1016/j.fooweb.2020.e00180
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发表时间:
2021
期刊:
影响因子:
1.7
通讯作者:
Sano Mitsuhiko
中科院分区:
文献类型:
--
作者:
Kawaida Shun;Nanjo Kusuto;Ohtsuchi Naoya;Kohno Hiroyoshi;Sano Mitsuhiko
The low digestibility of cellulose-rich detritus in primary consumers has been considered to limit its incorporation by higher level consumers. A recent study revealed, however, that the sesarmid crabParasesarmabidens, which is a dominant benthic consumer in East Asian mangrove forests, possesses high cellulase enzyme activity enabling the species to efficiently digest and assimilate refractory detritus. To elucidate whetherP. bidensacts as a trophic intermediate facilitating the incorporation of mangrove detritus into the food chain, the food habits of benthivorous fishes within a subtropical mangrove estuary were investigated. Stomach content analyses indicated that crabs, especiallyP. bidens, made a large contribution to the diets of the fishes examined, including the snapperLutjanus argentimaculatusand the seabreamAcanthopagrussivicolus, which were both common at the study site. Furthermore, carbon and nitrogen stable isotope analyses revealed that mangrove detritus contributed significantly to all fish species examined, due to their consumption ofP. bidens. These findings suggested that the detrital trophic pathway, via crabs with greater ability to digest/assimilate cellulose materials, plays an integral part in maintaining food chain structures in mangrove ecosystems.
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影响因子:
--
作者:
I. Mchenga;M. Tsuchiya
通讯作者:
M. Tsuchiya
影响因子:
1.5
作者:
P. Harrigan;J. Zieman;S. Macko
通讯作者:
S. Macko
影响因子:
2.8
作者:
Kawaida, Shun;Nanjo, Kusuto;Sano, Mitsuhiko
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Sano, Mitsuhiko
影响因子:
2.8
作者:
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通讯作者:
Bouillon, S.
DOI:
--
发表时间:
2011
期刊:
--
影响因子:
--
作者:
P. Saenger
通讯作者:
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