Baliqlar ko'payish ekologiyasi bilan bog'liq bir-biridan qiziq holatlar mavjud. Shulardan biri Janubiy Amerika suv havzalarida keng tarqalgan xarasisimonlar turkumi vakili Copella arnoldi hisoblanadi.
Ular yosh avlodlarini suvdagi dushmanlardan muhofaza qilish maqsadida tuxumlarini suvdan tashqariga - daraxt barglariga qo'yadi. Bunda erkak va urg'ochi baliqlar suvdan sinxron tarzda sakrab suv yuzasidagi daraxt barglariga yopishib olishadi. Urg'ochi baliq tuxum qo'yadi va o'sha zahoti erkak baliq ularni urug'lantiradi. 3-5 soniyadan keyin har ikki baliq suvga tushadi. Keyinchalik erkak baliq tuxumlar qurib qolmasligi uchun ularga dumi bilan suv sepib turadi.
Ikki-uch kunda tuxumlardan mayda ikralar rivojlanadi va ular suvga tushib o'z rivojlanish hayotini davom ettiradi.
Baliqlar ko'payish ekologiyasi bilan bog'liq bir-biridan qiziq holatlar mavjud. Shulardan biri Janubiy Amerika suv havzalarida keng tarqalgan xarasisimonlar turkumi vakili Copella arnoldi hisoblanadi.
Ular yosh avlodlarini suvdagi dushmanlardan muhofaza qilish maqsadida tuxumlarini suvdan tashqariga - daraxt barglariga qo'yadi. Bunda erkak va urg'ochi baliqlar suvdan sinxron tarzda sakrab suv yuzasidagi daraxt barglariga yopishib olishadi. Urg'ochi baliq tuxum qo'yadi va o'sha zahoti erkak baliq ularni urug'lantiradi. 3-5 soniyadan keyin har ikki baliq suvga tushadi. Keyinchalik erkak baliq tuxumlar qurib qolmasligi uchun ularga dumi bilan suv sepib turadi.
Ikki-uch kunda tuxumlardan mayda ikralar rivojlanadi va ular suvga tushib o'z rivojlanish hayotini davom ettiradi.
Among the actives, Ascendas REIT sank 0.64 percent, while CapitaLand Integrated Commercial Trust plummeted 1.42 percent, City Developments plunged 1.12 percent, Dairy Farm International tumbled 0.86 percent, DBS Group skidded 0.68 percent, Genting Singapore retreated 0.67 percent, Hongkong Land climbed 1.30 percent, Mapletree Commercial Trust lost 0.47 percent, Mapletree Logistics Trust tanked 0.95 percent, Oversea-Chinese Banking Corporation dropped 0.61 percent, SATS rose 0.24 percent, SembCorp Industries shed 0.54 percent, Singapore Airlines surrendered 0.79 percent, Singapore Exchange slid 0.30 percent, Singapore Press Holdings declined 1.03 percent, Singapore Technologies Engineering dipped 0.26 percent, SingTel advanced 0.81 percent, United Overseas Bank fell 0.39 percent, Wilmar International eased 0.24 percent, Yangzijiang Shipbuilding jumped 1.42 percent and Keppel Corp, Thai Beverage, CapitaLand and Comfort DelGro were unchanged.
The lead from Wall Street offers little clarity as the major averages opened lower on Friday and then bounced back and forth across the unchanged line, finally finishing mixed and little changed.The Dow added 33.18 points or 0.10 percent to finish at 34,798.00, while the NASDAQ eased 4.54 points or 0.03 percent to close at 15,047.70 and the S&P 500 rose 6.50 points or 0.15 percent to end at 4,455.48. For the week, the Dow rose 0.6 percent, the NASDAQ added 0.1 percent and the S&P gained 0.5 percent.The lackluster performance on Wall Street came on uncertainty about the outlook for the markets following recent volatility.
