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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2007.3
- 수록면
- 83 - 90 (8page)
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초록· 키워드
오류제보하기
This study was investigated the effect of growth and gonadal development in olive flounder, Paralichthys olivaceus exposed to PCBs Effluent Allowance Concentration, 3.0 ppb in Korea.
Total length, body weight and weight gain of fish were no significant differences between two treatments (control: T.L.-110.0 ㎜, T.W.-9.61 g; treatment: T.L.-112.8 ㎜, T.W.-9.68 g), however, weight gain of fish unexposed to PCBs was observed to increase gradually from 100 days after hatching (30 days after treatment).
In the indifferentiated gonad to the juvenile stage, the differentiation of the ovary occured at 60 days after hatching (20 days after treatment) and that of the testis occured at 70 days after hatching (30 days after treatment) in two groups.
In the ovary, the oogonia and ovarian lamellar appeared 130 days after hatching (50 days after treatment). The spermatogonia and testicular lobule of the testis were observed at 130 days after hatching (50 days after treatment). Testicular cyst appeared 140 days after hatching (60 days after treatment). There was no difference on the development of ovary and testis. There was no obvious difference of sex ratios.
Therefore, These results considerate that PCBs have any effect for growth and gonadal development, but a little act for early growth in olive flounder.
Total length, body weight and weight gain of fish were no significant differences between two treatments (control: T.L.-110.0 ㎜, T.W.-9.61 g; treatment: T.L.-112.8 ㎜, T.W.-9.68 g), however, weight gain of fish unexposed to PCBs was observed to increase gradually from 100 days after hatching (30 days after treatment).
In the indifferentiated gonad to the juvenile stage, the differentiation of the ovary occured at 60 days after hatching (20 days after treatment) and that of the testis occured at 70 days after hatching (30 days after treatment) in two groups.
In the ovary, the oogonia and ovarian lamellar appeared 130 days after hatching (50 days after treatment). The spermatogonia and testicular lobule of the testis were observed at 130 days after hatching (50 days after treatment). Testicular cyst appeared 140 days after hatching (60 days after treatment). There was no difference on the development of ovary and testis. There was no obvious difference of sex ratios.
Therefore, These results considerate that PCBs have any effect for growth and gonadal development, but a little act for early growth in olive flounder.
목차
ABSTRACT
서론
재료 및 방법
결과 및 고찰
결론
참고문헌
참고문헌 (15)
참고문헌 신청
, , Hrdig J and Larsson . Physiolog-ical disturbances in fish living in coastal water pollutedwith bleached kraft pulp mill effluents : 1525 ~ 1536
, , Bengtsson BE. Long-term effects of PCB reproduction and swimming performance in theminnow : 681 ~ 687
, , Mccain BB and Varanasi U. Inducibilityof spawning and reproductive success of female Englishsole misita (d) : 99 ~ 122
, 1998 , Effects of PCBs(Polychlori-nated biphenyls) on energy budget in Mysid, Neomysis awatschensis 31 (1) : 95 ~ 103
, 1996 , Our stolen future : 316 ~
, , Bengtsson BE. Long-term effects of PCB reproduction and swimming performance in theminnow : 681 ~ 687
, , Mccain BB and Varanasi U. Inducibilityof spawning and reproductive success of female Englishsole misita (d) : 99 ~ 122
, 1998 , Effects of PCBs(Polychlori-nated biphenyls) on energy budget in Mysid, Neomysis awatschensis 31 (1) : 95 ~ 103
, 1996 , Our stolen future : 316 ~
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