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Семнадцатая сессия Комитета МОК по международному обмену океанографическими данными и информацией (МООД-XVII)

Wed, 01 Jan 2003 00:00:00 GMT

Title: Семнадцатая сессия Комитета МОК по международному обмену океанографическими данными и информацией (МООД-XVII) Abstract: Настоящий документ, в котором после вводной части приводятся все решения, принятые Комитетом МОК по международному обмену океанографическими данными и информацией на его семнадцатой сессии, имеет следующие разделы: Раздел 1: Решения, принятые Комитетом по МООД по каждому из пунктов повестки дня; и Раздел 2: Резолюции и рекомендации, принятые Комитетом по МООД. Рабочее резюме имеется на английском, французском, русском и испанском языках. Настоящий доклад представляется на одобрение 22-й сессии Ассамблеи МОК в июне 2003 г.

Trophic Ecology of Sardinella gibbosa (Pisces: Clupeidae) and Atherinomorous lacunosus (Pisces: Atherinidae) in Mtwapa Creek and Wasini Channel, Kenya

Tue, 01 Jan 2002 00:00:00 GMT

Title: Trophic Ecology of Sardinella gibbosa (Pisces: Clupeidae) and Atherinomorous lacunosus (Pisces: Atherinidae) in Mtwapa Creek and Wasini Channel, Kenya Authors: Nyunja, J.A.; Mavuti, K.M.; Wakwabi, E. Abstract: The food habits of two schooling planktivorous fishes, Sardinella gibbosa and Atherinomorous lacunosus, were investigated in Mtwapa creek and Wasini Channel of the Kenya coast. Spatial and temporal variations in their food and feeding habits were assessed using the percentage numerical abundance method, percentage frequency of occurrence, stomach fullness indices and the Tokeshi graphical method. This study established a clear spatial separation of Mtwapa creek from Wasini Channel in terms of the abiotic and biotic data. Highly significant differences (t-test, p < 0.05) were observed between the two study areas in temperature, salinity, transparency, conductivity, chlorophyll a and in zooplankton abundance and diversity. The diet of the two fish species showed clear spatial and temporal differences, which were dependent on habitat variability. The two species belong to the omnivorous trophic category. Sardinella gibbosa from both sites fed mostly on copepods during the two seasons. Atherinomorous lacunosus fed mostly on phytoplankton, copepods and nematodes during the NE Monsoon. However, its diet was dominated by nematodes during the SE Monsoon. Overall, both fish species exhibited generalised and opportunistic feeding habits. Their diet was influenced by changes in the quality and quantity of food in the environment and the fishes migratory patterns. Description: Research Groups: Department of Zoology University of Nairobi, P.O. Box 30197, Nairobi, Kenya Kenya Marine and Fisheries Research Institute, P.0. Box 81651, Mombasa, Kenya

Studies on the water quality of River Ramisi near a sugar factory

Thu, 01 May 1986 00:00:00 GMT

Title: Studies on the water quality of River Ramisi near a sugar factory Authors: Oteko, D. Abstract: The findings are presented of a study conducted to investigate the quality of the water at the Ramisi Estuary, which is affected by effluents from a sugar factory. The river was found to be polluted all year round by these wastes and the need for proper treatment of the waste before discharging is stressed.

Sardine fishery in Kenya

Wed, 01 Jan 1986 00:00:00 GMT

Title: Sardine fishery in Kenya Authors: Wakwabi, E. Abstract: This paper gives an overview on the Kenya sardine fishery as a research area for the future development and management of marine resources. The fishery is viewed in the context of an industry and the need for research into it as an ecological indicator and for commercial exploitation is emphasized.