Understanding the nutritional sources of gastropods and anomura from the mangrove forest of weno Island, Micronesia SCOPUS KCI

Title
Understanding the nutritional sources of gastropods and anomura from the mangrove forest of weno Island, Micronesia
Author(s)
Ko, A.-R.; Kim, M.-S.; Ju, S.-J.
KIOST Author(s)
Ju, Se Jong(주세종)
Publication Year
2013
Abstract
Carbon cycling and productivity within Weno Island of Micronesia enclosed by the coral reef may be likely self-maintained and insignificantly affected by the open ocean. Therefore, it is important to understand the role of the mangrove known as providing the organic matter and habitats for many organisms in this enclosed area. In order to trace the nutritional source of fauna (mostly invertebrates) in the mangrove forest of Weno island, we analyzed the fatty acid (FA) and carbon and nitrogen stable isotopes of potential nutritional sources (mangrove leaf & pneumatophore, seagrass leaf & root, surface sediment, and particulate organic matter (POM) in water) and consumers (4 gastropods and anomura). The mangrove and seagrass contained the abundance of 18:2ω6, and 18:3ω3, whereas FAs associated with phytoplankton and bacteria were accounted for a high proportion in the surface sediment and POM. FA composition of consumers was found to be similar to those of the surface sediment, mangrove, and seagrass. These were also confirmed through the mixing model of stable isotope for contribution of nutritional sources to consumers. Overall results with the feeding types of investigated mangrove fauna indicate that investigated mangrove fauna obtained their nutrition from the various sources, i.e. the mangrove for Littorina cf. scabra, the microalgae for Strombus sp., and omnivorous Pagurus sp. and Terebralia cf. palustris. However, it is obvious that the nutrition of most species living in the mangrove ecosystem is highly dependent on the mangrove, either directly or indirectly. More detail food-web structure and function of the mangrove ecosystem would be established with the analysis of additional fauna and flora.
ISSN
1598-141X
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/3317
DOI
10.4217/OPR.2013.35.4.427
Bibliographic Citation
Ocean and Polar Research, v.35, no.4, pp.427 - 439, 2013
Subject
abundance; carbon cycle; carbon isotope; coral reef; crustacean; ecosystem function; fatty acid; fauna; flora; food web; gastropod; mangrove; nitrogen isotope; nutrition; seagrass; stable isotope; Caroline Islands; Chuuk; Federated States of Micronesia; Truk Islands; Weno
Keywords
Chuuk; Fatty acid; Mangrove; Nutritional source; Stable isotope
Type
Article
Language
Korean
Document Type
Article
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