인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
The black sea bream (Acanthopagrus schlegelii) is a euryhaline species with broad salinity tolerance, but little is known about the responses of wild juveniles to low-salinity exposure. In this study, we investigated the occurrence of wild juveniles in estuarine and sandy coastal habitats along the coast of Geoje, Korea, and conducted a preliminary laboratory exposure experiment at low salinities (0, 5, and 12 psu). Juveniles were collected at an estuarine station (St. 1; 5.7–14.5 psu) and a sandy coastal station (St. 2; 31.8–33.5 psu). After 186.5 h of exposure, survival was low in both the 12 psu and 5 psu treatments (5.56±3.85% and 7.78±5.09%, respectively; P=0.751), whereas all fish at 0 psu died within approximately 84.5 h. Pathological signs, including exophthalmos and globe rupture, were observed only at 0 psu, suggesting that freshwater exposure may cause physiological damage in juvenile A. schlegelii. However, because mortality was also high at 12 and 5 psu, the lower salinity tolerance limit could not be reliably determined, and the confounding effects of capture and handling stress cannot be excluded. These results provide baseline data on the field occurrence of wild juveniles and their early-life responses to low-salinity exposure.
본문·목차
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.