visual-cortex
发表于 2025-3-28 17:01:13
http://reply.papertrans.cn/59/5805/580487/580487_41.png
antecedence
发表于 2025-3-28 22:13:32
Fish communities of Lake Chad and associated rivers and floodplains. We call ‘fish species community’ the possibly biased image given by the sampling of a group of fishes able to be caught in a particular environment at a given time. This definition only names a description — in the meaning of Legendre and Legendre, 1979 — of an ecological entity, but not this enti
Middle-Ear
发表于 2025-3-29 01:19:35
Secondary production (zooplankton and benthos) to evaluate their turnover rates and the amount of organic matter that each produces per unit time. Therefore, the zooplankton and zoobenthos production were studied as part of the research on the productivity of Lake Chad conducted from 1968 to 1973.
啮齿动物
发表于 2025-3-29 06:01:47
The exploitation of fish stocks in the Lake Chad regionmost of which originates from the central Niger delta in Mali and the Lake Chad region. This tonnage represents a similar quantity of protein to that produced by cattle and also has significant export value. Only recently has the value of this resource been recognized and so the wide range of knowle
Override
发表于 2025-3-29 10:10:58
The impact of birds on the lacustrine ecosystem cases it is only a halting spot for destinations further south and the migrants only use the lake as a resting place, not intensively utilizing its food resources. However, the morphology of the lake basin varies with changes in water level and the relationship between the lake and its bird fauna c
预定
发表于 2025-3-29 15:08:00
http://reply.papertrans.cn/59/5805/580487/580487_46.png
Torrid
发表于 2025-3-29 18:28:34
educational technology.Extensive references furnished to guThe 4th edition of the Handbook of Research on Educational Communications and Technology expands upon the previous 3 versions, providing a comprehensive update on research pertaining to new and emerging educational technologies. Chapters th
Microgram
发表于 2025-3-29 20:38:12
Jean-Pierre Carmouze educational technology.Extensive references furnished to guThe 4th edition of the Handbook of Research on Educational Communications and Technology expands upon the previous 3 versions, providing a comprehensive update on research pertaining to new and emerging educational technologies. Chapters th
拱形面包
发表于 2025-3-30 01:01:19
http://reply.papertrans.cn/59/5805/580487/580487_49.png
BADGE
发表于 2025-3-30 04:14:26
Jean-Pierre Carmouze,Jacques Lemoalle educational technology.Extensive references furnished to guThe 4th edition of the Handbook of Research on Educational Communications and Technology expands upon the previous 3 versions, providing a comprehensive update on research pertaining to new and emerging educational technologies. Chapters th