http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Yun Keol Baek ) (검색결과 1 건)
- 무료
- 기관 내 무료
- 유료
-
Gobiobotia macrocephalus Mori 의 생활사
최기철,백윤걸 ( Ki Chul Choi,Yun Keol Baek ) 한국하천호수학회 1972 생태와 환경 Vol.5 No.3·4
1. The authors studied about the life cycle and a part of habits of Gobiobotia macrocephalus as well as on the growth rate and distribution of the species. 2. The authors would like to report that the species was collected at Samogri, Yeong-Weal eub; Cheong-Rhyang-po, Yeong-Weol-eub; Munmag, Weonseong-Gun, the Jojong River, Gapyeong-Gun; Muju, Muju-Gun; Hyeondo-Myeon, Chong-Weon Gun. 3. Both of male and female of the species did not show any searl orans around mouth and nuptiale colorations in the spawning season. 4. Spawning activities of the species were continued from endding of May to endding of June, 1972 under 18∼21℃ of water temperature in the Dong River and the Seo River in Yeong-Weol Gun. In the beginning of June, the spawning activeties of the species were most active. 5. The spawning places were lower edge portion of the rappids where covered with pebbles, 8∼15 cm in depth and the verocity was 88∼100 cm per second. 6. Spawning of the species occur into the pebbles under bottom surface of the spawning places. The females of the species have 120∼1,300 of eggs as far as the authors have studied and the numbar of eggs were proportional to the size of them. 7. The diameter of the fertilized eggs were 0.8 mm, and were swollen to 1.5 mm. Three days were needed to hatch, 6 days to absorb the Yolk-sac completly, 30 days to complete the form. At that time, the total length of the young fish was 15 mm. 8. The authors recognized that the young fish grew up to 30 mm in total length in 2 months after hatched, 50∼60 mm in 1 year; 80∼90 mm in 2 years and over 100 mm in over 3 years. 9. The main habtiats of the adult fish and young fish of the species were different and the mixed groups of adult and young fish of the species with others were also different in the composed species and composition ratio as shown in Table 9 and 10. 10. Open and close movemement of pupils of the species is occur according to brightness. 11. The authors noticed that the function of 3 pares of the barbles attatched under jaw is to attatch to the bottom.
코리아스칼라연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
