자연암반과 양식시설에서 참굴의 초기 가입 및 성장 비교

Title
자연암반과 양식시설에서 참굴의 초기 가입 및 성장 비교
Alternative Title
Early settlement and growth patterns of Pacific oyster (Crassostrea gigas) in natural rocky shore and hanging culture
Author(s)
이혜미; 윤건탁; 박흥식; 정윤환
KIOST Author(s)
Park, Heung Sik(박흥식)Jung, Yun Hwan(정윤환)
Alternative Author(s)
이혜미; 윤건탁; 박흥식; 정윤환
Publication Year
2014-04-22
Abstract
The toxicity of crude oil and the clean-up operation decreased the biodiversity of the rocky intertidal ecosystem after the Hebei Spirit oil spill in the coastal areas of Tae-an, Korea. We showed that the recruitment and growth of oysters (Crassostrea gigas) are critical to the recovery of the rocky shore ecosystem. We aimed to understand the ecological roles of oysters in natural and culture sites and obtained information about the early settlement patterns and growth of oysters. To investigate the recruitment, mortality, and growth of oysters, we conducted image analysis on a monthly basis between July 2012 and January 2013 and monitored the same individuals. The abundance of young oysters was greater at the natural site than at the culture site. However, the length of oysters at the culture site increased at more than double the rate of that at the natural site. The abundance of oysters at the natural site increased until September and has continually decreased to date. However, the abundance of oysters in the culture site constantly decreased after recruitment. These different patterns result from spatial competition between oysters and the barnacle (Balanus albicostatus). Therefore, spats need to be introduced in the natural and culture sites to increase the density and growth rate of oysters and aid recovery of the disturbed rocky intertidal ecosystem.Crassostrea gigas) are critical to the recovery of the rocky shore ecosystem. We aimed to understand the ecological roles of oysters in natural and culture sites and obtained information about the early settlement patterns and growth of oysters. To investigate the recruitment, mortality, and growth of oysters, we conducted image analysis on a monthly basis between July 2012 and January 2013 and monitored the same individuals. The abundance of young oysters was greater at the natural site than at the culture site. However, the length of oysters at the culture site increased at more than double the rate of that at the natural site. The abundance of oysters at the natural site increased until September and has continually decreased to date. However, the abundance of oysters in the culture site constantly decreased after recruitment. These different patterns result from spatial competition between oysters and the barnacle (Balanus albicostatus). Therefore, spats need to be introduced in the natural and culture sites to increase the density and growth rate of oysters and aid recovery of the disturbed rocky intertidal ecosystem.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/26342
Bibliographic Citation
9th international scientific symposium, pp.122, 2014
Publisher
IOC/WESTPAC
Type
Conference
Language
English
Publisher
IOC/WESTPAC
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