The Sediment Reworking of the Mud Shrimp Laomedia sp. (Crustacea: Laomediidae) with Tidal Conditions in the Intertidal Sediments of Gomso Bay, Korea SCIE SCOPUS

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Title
The Sediment Reworking of the Mud Shrimp Laomedia sp. (Crustacea: Laomediidae) with Tidal Conditions in the Intertidal Sediments of Gomso Bay, Korea
Author(s)
Seo, Jae Hwan; Koo, Bon Joo
KIOST Author(s)
Seo, Jae Hwan(서재환)Koo, Bon Joo(구본주)
Alternative Author(s)
서재환; 구본주
Publication Year
2021-11
Abstract
Although the thalassinidean mud shrimp Laomedia sp. is one of the most abundant species in the upper tidal flats along the west coast of Korea, little is known of its ecological characteristics and bioturbation effects on intertidal sediments. This study estimated the sediment reworking rate (SRR) of Laomedia sp. by quantifying in situ sediments ejected from the burrows via direct entrapment and evaluated the effects of tidal conditions on the SRR. The amount of expelled sediments from individual burrows was significantly related to the duration of submergence, whereas SRR showed an increasing trend as elevation increased. The SRR of Laomedia sp. was estimated to be 40 g ind.−1 d−1 and the annual SRR of this species was 72.2 kg m−2 yr−1 based on the density in the study area, which is very high compared to other thalassinidean shrimp. These findings suggest that Laomedia sp. is an important bioturbator in intertidal sediments, and tidal conditions should be considered when evaluating the SRR of this species.
ISSN
2077-1312
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/41745
DOI
10.3390/jmse9111251
Bibliographic Citation
Journal of Marine Science and Engineering , v.9, no.11, 2021
Publisher
MDPI AG
Keywords
duration of submergence; elevation; expelled sediments; Laomedia sp.; mound height; sediment reworking
Type
Article
Language
English
Document Type
Article
Publisher
MDPI AG
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