Relinquish
发表于 2025-3-30 11:02:18
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Commodious
发表于 2025-3-30 12:56:32
Reproductive strategies of some major fish species in Parakrama Samudra Reservoir and their possiblee Parakrama Samudra reservoir as well as other species like P. dorsalis etc. which are known to constitute a significant fish biomass of the reservoir but commercially yet unexploited, are not likely to breed in the reservoir. Possible reasons for an apparent lack of breeding success in the reservoi
Observe
发表于 2025-3-30 18:25:13
The ecology of cormorants (genus ,)vely. The estimated mean daily fish consumption amounts to 696 kg fish fresh weight d.. Nutrient export by these birds can reach almost one third of the nutrient loss through the outflow. These three species are well separated ecologically, but cichlids are the predominant prey for all of them.
净礼
发表于 2025-3-30 22:50:50
The Parakrama Samudra Project: scope and objectivesprogrammes. Parakrama Samudra is a large (25.5 km.), shallow (z.= 12.7 m), man-made irrigation reservoir situated within the dry zone of Sri Lanka. Due to the seasonal cycle in rainfall and the management of water for irrigational purposes, it exhibits strong fluctuations in water level, volume and
Kidnap
发表于 2025-3-31 02:20:30
Thermal stratification, mixis, and advective currents in the Parakrama Samudra Reservoir, Sri Lankaut three times. Losses of Birgean energy incurred by cooling (1.7–5.9 J m.in 1979,27.1 J m.in 1980) are transformed into convective energy. This leads to erosion processes in the order of a few millimetres of sediment depth daily and hence settled algae can be redistributed every night. The density
invert
发表于 2025-3-31 07:14:07
Phosphorus and phosphatase dynamics in Parakrama Samudra based on diurnal observationsconcentration and both P-deficiency indicators (phosphatase activity and hot-water-extractable P). Hot-water-extractable P per unit chlorophyll- a decreased during the day but increased gradually to reach a maximum at midnight. The above observations suggest that the algal population in Parakrama Sa
织布机
发表于 2025-3-31 10:17:22
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芳香一点
发表于 2025-3-31 13:37:09
A diurnal study of the planktonic rotifer populations in Parakrama Samudra Reservoir, Sri Lanka planktonic fish larvae and their feeding may account for more than half of the daily losses of rotifers. Coinciding with this, there are reductions in the percentage of brachionids, . spp. and . as well as a reduced presence of larger-sized animals.
显微镜
发表于 2025-3-31 18:22:00
The influence of temperature upon the duration of embryonic development of tropical , species (Rotiftonic populations inhabiting the lake during the period of investigation. The discussion considers these findings in relation to previously published work on rotifer embryonic development times as well as the possible causes for small eggs.
BALE
发表于 2025-3-31 23:16:21
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