Effects of Temperature and Body Size on the Clearance Rates of a Tidal Flat Bivalve, Coecella chinensis (Deshayes) KCI OTHER

Title
Effects of Temperature and Body Size on the Clearance Rates of a Tidal Flat Bivalve, Coecella chinensis (Deshayes)
Author(s)
이창훈; 류태권; 성찬경; 서진영; 김기현; 최진우
KIOST Author(s)
Seo, Jin Young(서진영)
Publication Year
2004-06
Abstract
To know the effects on temperature and body size on the clearance rate (CR) of a small tidal flat bivalve, Coecella chinensis, laboratory experiments were performed with 20 individuals of different sizes (ranging from 7 to 25 mm) at 3 different temperatures (10, 15, 20℃). The relationship between body size and CR was determined by an allometric equation. The CR of C. chinensis varied greatly ranging from 0.003 to 0.103 L/individual/hr. Both temperature and body size affected significantly on the CR of C. chinensis. The CR at 20℃was 1.5 times higher than that at 15℃ and 2.8 times than 10℃. The temperature coefficient (Q10) between 10 and 15℃ was higher than that between 15 and 20℃, which indicates that C. chinensis changes its CR more rapidly in lower temperature range. As body size increased, the CR increased more than 10-fold at all temperatures. The CR relative to flesh dry weight (FDW) were fitted well to the power function: CR = a × (FDW)b . The exponent value (b) of the fitted equation ranged from 0.64 to 0.70, which are similar to those of other bivalves. The weight-specific CR (CRw) was still affected by body size (p < 0.05). This implies that smaller individuals require more energy per unit biomass for growth, and the energy requirement for growth decreases as body size increases.
ISSN
1225-3480
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/5241
Bibliographic Citation
The Korean Journal of Malacology, v.20, no.1, pp.35 - 43, 2004
Publisher
한국패류학회
Keywords
Coecella chinensis; Temperature; Body size; Clearance rate
Type
Article
Language
English
Publisher
한국패류학회
Related Researcher
Research Interests

Macrobenthic community structures,Population dynamics,Bioassay,대형저서동물 군집,개체군 연구,생물독성

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