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No Thumbnail AvailableBook (series)Some considerations for the management of coastal lagoon and estuarine fisheries 1981
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No results found.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. S ocio-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 potenti al 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 competiti on between artisanal fisheries of coastal lagoons and estuaries and off-shore shore industrial fisheries which fish the same stocks. -
No Thumbnail AvailableBook (series)Principles of hydraulic management of coastal lagoons for aquaculture and fisheries 1990
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No results found.This document is prepared for fisheries biologists, managers and administrators concerned with lagoon fisheries and aquaculture. Our main objective is to draw attention to the need for greater understanding of relationships between the hydraulics and productivity of lagoon fish and shellfish. The fishery yields from lagoons vary widely, and, probably, predictably, once such relationships are understood. Furthermore, the productivities of many lagoons could probably be enhanced by hydraulic manip ulations, but the hydraulic manipulation is presently risky, except in dystrophic lagoons. The document includes a description of lagoon physics, how hydraulics are likely linked to lagoon productivity, how lagoons might be expected to respond to hydraulic alterations, and a protocol for physical investigations. This latter is a necessary step to protect as well as enhance fisheries and aquaculture resources in lagoons, which are especially vulnerable to degradation and overexploitation.
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