The Variation on Sediment Reworking with Influencing Factors by a Sand Bubbler Crab, Scopimera globosa, in Intertidal Sediments of the Anmyeon Island, Korea SCIE SSCI SCOPUS

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Title
The Variation on Sediment Reworking with Influencing Factors by a Sand Bubbler Crab, Scopimera globosa, in Intertidal Sediments of the Anmyeon Island, Korea
Author(s)
Seo, Jaehwan; Koo, Bon Joo
KIOST Author(s)
Seo, Jae Hwan(서재환)Koo, Bon Joo(구본주)
Alternative Author(s)
서재환; 구본주
Publication Year
2021-05
Abstract
Though biological and ecological characteristics of Scopimera globosa have been intensively investigated, little has been understood on bioturbation, especially sediment reworking. This study was designed to evaluate variation on sediment reworking of S. globosa based on feeding pellet production (FP) and burrowing pellet production (BP) with influencing factors and estimating the chlorophyll content reduction within the surface sediment by its feeding. The FP and BP largely fluctuated according to chlorophyll a concentration and crab density, but both were not influenced by temperature. The FP was enhanced by chlorophyll a concentration, whereas both FP and BP were restricted by crab density. The daily individual production was highest in spring, followed by fall and summer, with values of 25.61, 20.70 and 3.90 g ind.(-1) d(-1), respectively, while the total daily production was highest in fall, followed by summer and spring 2150, 1660 and 660 g m(-2) d(-1), respectively. The daily sediment reworking based on the FP and BP of Scopimera was highest in fall, followed by summer and spring, with values of 1.91, 1.70 and 0.77 mm d(-1) and the annual sediment reworking rate of this species was calculated 40 cm year(-1) based on its density in this study area. The chlorophyll a reduction ratio was estimated from 11 to 24% in one day by its feeding. These results imply that the sediment reworking of S. globosa is regulated by food abundance and its density, and Scopimera is an important bioturbator, greatly influencing biogeochemical changes in the intertidal sediments.
ISSN
2071-1050
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/41448
DOI
10.3390/su13105703
Bibliographic Citation
SUSTAINABILITY, v.13, no.10, 2021
Publisher
MDPI
Subject
MICROPHYTOBENTHOS; BIOTURBATION; IMPACT; MARSH
Keywords
bioturbation; sediment reworking; Scopimera globosa; chlorophyll content reduction; feeding pellet; burrowing pellet; intertidal sediments
Type
Article
Language
English
Document Type
Article
Publisher
MDPI
Related Researcher
Research Interests

benthic ecology,bioturbation,remote sensing,저서생태학,생물교란,원격탐사

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