표제지
목차
論文要約 9
I. 서론 11
II. 재료 및 방법 13
1. 조사지점 및 시기 13
2. 채집 및 동정 14
3. 서식지의 환경 14
4. 성비와 산란시기 추정 14
5. 포란수 및 성숙난의 크기 14
6. 성장도 및 연령추정 15
7. 전장-체중 상관관계 및 비만도 지수 15
8. 소화기관과 식성 15
III. 결과 및 고찰 16
1. 서식지 환경 16
2. 분포 21
3. 공서종 23
4. 성적이형 26
5. 성비 27
6. 성장도 및 연령추정 28
7. 성적 성숙 연령 및 생식가능 체장범위 30
8. 산란시기 추정 32
9. 포란수 및 성숙난의 크기 34
10. 전장-체중의 상관관계 및 비만도 지수 36
11. 소화관과 아가미 구조 39
12. 식성 41
참고문헌 48
ABSTRACT 53
부록 55
Table 1. The evironmental conditions at the studied station of the Ji-cheon stream, Chungcheongnam-do,... 16
Table 2. The list and individual number of cohabitation fishes of Sarcocheilichthys... 24
Table 3. The number of sex ratio of Sarcocheilichthys variegatus wakiyae in the Ji-cheon... 27
Table 4. Number of eggs in gonad index of the Sarcocheilichthys variegatus wakiyae female from... 35
Table 5. Stomach contents of Sarcocheilichthys variegatus wakiyae in the Ji-cheon stream,... 45
Fig. 1. Map showing the sampling station of Sarcocheilichthys variegatus wakiyae in the Ji-cheon... 13
Fig. 2. Monthly changes of the air and water temperature in the Ji-cheon stream, from March 2016... 17
Fig. 3. Monthly changes of DO, EC and pH at Ji-cheon stream in Eunsan-myeon, Buyeo-gun,... 18
Fig. 4. The Habitat stream channel characteristic of Sarcocheilichthys variegatus wakiyae. 20
Fig. 5. Distribution map of Sarcocheilichthys variegatus wakiyae (77 stations). 22
Fig. 6. The relative abundance of cohabitation fishes of Sarcocheilichthys variegatus wakiyae in... 25
Fig. 7. An external morphology of Sarcocheilichthys variegatus wakiyae. 26
Fig. 8. Length frequency distributions of Sarcocheilichthys variegatus wakiyae in the Ji-cheon... 29
Fig. 9. Change of gonadosomatic index with increasing of Body length of Sarcocheilichthys... 31
Fig. 10. Monthly change of gonadosomatic index (GSI) of Sarcocheilichthys variegatus wakiyae... 33
Fig. 11. Total length-weight relationship of Sarcocheilichthys variegatus wakiyae in the Ji-cheon... 37
Fig. 12. Condition factor (K) of Sarcocheilichthys variegatus wakiyae in the Ji-cheon stream, from... 38
Fig. 13. Stomach and intestine of Sarcocheilichthys variegatus wakiyae. 40
Fig. 14. Morphological of first gill arch of Sarcocheilichthys variegatus wakiyae, scale indicates 5... 40
Fig. 15. Relative abundance of animal individual number (%) in stomach contents of... 47