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Nile tilapia (Oreochromis niloticus) are mouth-brooders so that the females holding eggs in their mouth sacrifice their somatic growth for reproduction. For this reason, artificial control of reproduction for the culture of this species has been of interest. Manipulation of photoperiod is an emerging technique for such purpose, but little information is available to establish appropriate photoperiod regime. To obtain necessary basic information, sexually mature females were individually accommodated to glass aquarium, and monitored the spawning activity for two years under natural photoperiod regime. Female tilapia spawned most frequently on March, April and May when the day length gradually increased from 11 hours to 14 hours and least frequently on September, October, November and December when the day length gradually decreased from 13 hours to less than 10 hours in the first year. The decrease of spawning frequency as day length decreased was also observed in the second year, although the increase of spawning frequency as day length increased was less clear. Spawning of female tilapia was less active when the night was dark due to the disappearance of moonlight (Dark Phase), compared to the Phase of Getting Lighter, Light Phase and Phase of Getting Darker. Results from this study suggest that long day length, particularly increasing phase, is favoured for active spawning of Nile tilapia, and that this species, as a tropical fish species, may utilize changing lunar phases as a secondary environmental cue for reproduction.

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기사명 저자명 페이지 원문 목차
Effect of 11-ketotestosterone (11-KT) on gonadal sex reversal and spermatogenesis of honeycomb grouper Epinephelus merra Chi-Hoon Lee ; Sang-Woo Hur ; Young-Bo Song ; Kazunori Takano ; Akihiro Takemura ; Young-Don Lee pp.1-5

Germ cell aspiration (GCA) method as a non-fatal technique for sex identification in two bivalves (Gomphina veneriformis and Tegillaca granosa) Jung Sick Lee ; Sun Mi Ju ; Ji Seon Park ; Young Guk Jin ; Yun Kyung Shin ; Jung Jun Park pp.7-11

Co-expression of IRES-mediated hG-CSF cDNA and hGH gene under the control of goat beta-casein promoter Keon Bong Oh ; Chul-Sang Lee pp.13-19

(The)Effect of day length and lunar phases on the spawning activity in the nile tilapia Oreochromis niloticus Joon Yeong Kwon ; Jung-Hyun Kim ; Bokyong Kim pp.21-25

Effects of EGF and PAF on the hatching and implantation of peri-implantation stage embryos Yong-Pil Cheon pp.27-34

Direct action of genistein on the hypothalamic neuronal circuits in female rats Lee, Sung Ho pp.35-41

참고문헌 (19건) : 자료제공( 네이버학술정보 )

참고문헌 목록에 대한 테이블로 번호, 참고문헌, 국회도서관 소장유무로 구성되어 있습니다.
번호 참고문헌 국회도서관 소장유무
1 Biswas AK, Morita T, Yoshizaki G, Maita M, Takeuchi T (2005) Control of reproduction in Nile tilapia Oreochromis niloticus (L.) by photoperiod manipulation. Aquaculture 243:229-239. 미소장
2 Boeuf G, Le Bail PL (1999) Does light have an influence on fish growth? Aquaculture 177:129-152. 미소장
3 Bromage N, Porter M, Randall C (2001) Environmental regulation of maturation in farmed finfish with special reference to the role of photoperiod and melatonin. Aquaculture 197:63-69. 미소장
4 Campos-Mendoza A, McAndrew BJ, Coward K, Bromage N (2004) Reproductive response of Nile tilapia (Oreochromis niloticus) to photoperiod manipulation; effects on spawning periodicity, fecundity and egg size. Aquaculture 231: 299-313. 미소장
5 Gines A, Afonso JM, Argüello A, Zamorano MJ, Lopez JL (2004) The effects of long-day photoperiod on growth, body composition and skin colour in immature gilthead sea bream (Sparus aurata L.). Aquaculture Research 35:1207-1212. 미소장
6 Kwon JY, Haghpanah V, Kogson-Hurtado LM, McAndrew BJ, Penman DJ (2000) Masculinization of genetic female Nile tilapia (Oreochromis niloticus) by dietary administration of an aromatase inhibitor during sexual differentiation. J Exp Zool 287:46-53. 미소장
7 Treatment with an aromatase inhibitor suppresses high‐temperature feminization of genetic male (YY) Nile tilapia 네이버 미소장
8 Longalong FM, Eknath AE, Bentsen HB (1999) Response to bidirectional selection for frequency of early maturing females in Nile tilapia (Oreochromis niloticus). Aquaculture 178:13-25. 미소장
9 Martinez-Chavez CC, Migaud H (2009) Retinal light input is required to sustain plasma melatonin rhythms in Nile tilapia Oreochromis niloticus niloticus. Brain Research 1269:61-67. 미소장
10 Recent advances in aquaculture IV: J.F. Muir and R.J. Roberts. Blackwell Scientific Publications, London, 1993, 340 pp., price £ 59.50, ISBN 0-632-02898-X-0 네이버 미소장
11 Oppedal F, Taranger GL, Juell JE, Hansen T (1999) Growth, osmoregulation and sexual maturation of under yearing Atlantic salmon (Salmo salar) exposed to different intensities of continuous light in sea cages. Aquaculture Research 30:491-499. 미소장
12 Rad F, Bozaoğlu S, Gözükara SE, Karahan A, Kurt G (2006) Effects of different long-day photoperiods on somatic growth and gonadal development in Nile tilapia (Oreochromis niloticus L.). Aquaculture 255:292-300. 미소장
13 Randall C, North B, Futter W, Porter M, Bromage N (2001) Photoperiod effects on reproduction and growth in rainbow trout. Trout News 32:12-16. 미소장
14 Ridha MT, Cruz EM (2000) Effect of light intensity and photoperiod on Mile tilapia Oreochromis niloticus seed production. Aquaculture Research 31:609-617. 미소장
15 Ridha MT, Cruz EM, Al-Ameeri AA, Al-Ahmed AA (1998) Effects of controlling temperature and light duration on seed production in tilapia, Orechromis spilurus (Günter). Aquaculture Research 29:403-410. 미소장
16 Rodriguez L, Zanuy S, Carrillo M (2001) Influence of day length on the age at first maturity and somatic growth in male sea bass (Dicentrarchus labrax L.). Aquaculture 196:159-175. 미소장
17 Simensen LM, Jonassen TM, Imsland AK, Stefansson SO (2000) Photoperiod regulation of growth of juvenile Atlantic halibut (Hippoglossus hippoglossus). Aquaculture 190:119-128. 미소장
18 Takemura A, Rahman MR, Nakamura S, Park YJ, Takano K (2004) Lunar cycles and reproductive activity in reef fishes with particular attention to rabbitfishes. Fish and Fisheries 5:317-328. 미소장
19 Thresher, R.E. (1984) Reproduction in Reef Fishes. T.F.H. Publications, Neptune City, NJ. 미소장

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