خيارات البحث
النتائج 1 - 10 من 237
2a. Coletânea de trabalhos técnicos | Coletânea de trabalhos técnicos | Segundo coletânea de trabalhos técnicos | 2nd collection of technical works
1981
Moderne fischwirtschaft | Modern management of fisheries
1981
Steffens, Werner
De verschillende aspecten van de intensieve vishouderij van onder andere karpers, forellen, plantenetende karpers en paling worden beschreven. In het algemeen wordt ingegaan op de fokkerij van vissen, visziekten, mechanisering en automatisering in de visproduktie, de benutting van natuurlijke wateren voor de visproduktie, de verschillende vangapparatuur en de bewerking en verwerking van zoetwatervis
اظهر المزيد [+] اقل [-]Estimates of the historical abundance of coho salmon, Oncorhynchus kisutch (Walbaum), in Oregon coastal streams and in the Oregon Production Index area | Coho salmon, Oncorhynchus kisutch (Walbaum), in Oregon coastal streams and in the Oregon Production Index area | Oregon Production Index area
1981
Mullen, Robert E.
A brief write up on fisheries development for the last 3 years, i.e. 1977-1980
1981
Bhutia, K. P.
Aquaculture development in Rwanda
1981
Schmidt, U. W. | Vincke, M. M. J.
Management of sportfishing ponds
1981
Lewis, G.W.
Apanui fyke net trials [in the eastern Bay of Plenty, New Zealand]
1981
Walshe, K. (Ministry of Agriculture and Fisheries, Tauranga (New Zealand). Fisheries Management Div.)
Alaska longline [system for a conventional longline with snoods attached]
1981
Cade, R. (Ministry of Agriculture and Fisheries, Tauranga (New Zealand). Fisheries Management Div.)
Tasman Bay snapper fishery [Chrysophrys auratus in New Zealand]
1981
Mace, J. (Ministry of Agriculture and Fisheries, Nelson (New Zealand). Fisheries Management Div.)
Some considerations for the management of coastal lagoon and estuarine fisheries
1981
Kapetsky, James M.
Management of artisanal fisheries in coastal lagoons and estuaries is treated in three broad categories -- regulatory management, non-regulatory management, and interactions between fisheries or fishery interests. Regulation of artisanal fisheries in coastal lagoons and estuaries by government authority is hampered for several reasons. Technical and financial constraints on government severely limit enforcement capabilities. Socio-economic considerations, chiefly the lack of alternative employment opportunities for fishermen, preclude the adoption of many of the classical regulatory management techniques. As a means to complement or supplement management by central government authority, revitalization of local traditional authority is advocated. Non-regulatory management, the application of methods which increase capture and culture fishery potential through manipulation of the environment, is illustrated by various kinds of hydraulic engineering, predator control, stocking, artificial nursery areas, and brush-park fisheries. Interactions between fisheries or fishery interests is treated at several levels. Considered are competition between groups of fishermen of different ethnic and economic backgrounds, interactions between artisanal capture fisheries and aquaculture, and competition between artisanal fisheries of coastal lagoons and estuaries and off-shore shore industrial fisheries which fish the same stocks.
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