Trophic importance of meiofauna to polychaetes in a seagrass ( Zostera marina) bed as traced by stable isotopes SCIE SCOPUS

Cited 8 time in WEB OF SCIENCE Cited 8 time in Scopus
Title
Trophic importance of meiofauna to polychaetes in a seagrass ( Zostera marina) bed as traced by stable isotopes
Author(s)
Ha, Sun Yong; Min, Won-Ki; Kim, Dong-Sung; Shin, Kyung-Hoon
KIOST Author(s)
Min, Won Gi(민원기)Kim, Dong Sung(김동성)
Publication Year
2014-02
Abstract
Stable carbon and nitrogen isotope ratios of benthic invertebrates and their potential food sources, such as suspended particulate organic matter (POM), benthic microalgae, attached algae and seagrass, were identified in Dong-dae Bay during the winter. The carbon stable isotope ratios demonstrate that filter feeders, such as oysters (-19.5 +/- 1.0 parts per thousand), use benthic microalgae (-21.2 +/- 0.2 parts per thousand) as a major food, and polychaetes such as Glycera spp. (-14.0 +/- 0.6 parts per thousand) preferentially use meiofauna, such as nematodes (-14.0 +/- 0.4 parts per thousand) and copepods (-13.3 +/- 1.0 parts per thousand). These meiofauna may feed on mixed resources (including bacteria) with the isotope ratios between benthic microalgae (-21.2 +/- 0.2 parts per thousand) and seagrass (-9.3 +/- 01.0 parts per thousand). These findings are consistent with the trophic enrichment in the nitrogen isotope ratios (by 3-4 parts per thousand) between consumers and food sources. Moreover, the results of the MixSIR model based on the observed isotope ratios suggest a large seagrass contribution to the food sources of benthic organisms such as meiofauna (similar to 53.7-62.6%) and macrobenthos (similar to 41.1-68%) through the food web. This model additionally suggests a relatively large contribution of benthic microalgae to the food sources of filter feeders (i.e. 26.4% for oysters).
ISSN
0025-3154
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/2872
DOI
10.1017/S0025315413001148
Bibliographic Citation
JOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM, v.94, no.1, pp.121 - 127, 2014
Publisher
CAMBRIDGE UNIV PRESS
Subject
BENTHIC FOOD WEBS; CRASSOSTREA-GIGAS; ORGANIC-MATTER; CARBON FLOW; POSIDONIA-OCEANICA; TIDAL FLATS; SALT-MARSH; NITROGEN; BACTERIA; DELTA-N-15
Keywords
stable isotope; Zostera marina; meiofauna; benthic microalgae; MixSIR
Type
Article
Language
English
Document Type
Article
Publisher
CAMBRIDGE UNIV PRESS
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