Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 11 of 11 for “"fish resources"”.
-
Ecology of the pelagic fish resources of Lake Tanganyika
Most of the scientific knowledge on the pelagic fish (the clupeids Stolothrissa tanganicae and Limnothrissa miodon and the centropomid Lates stappersii) of Lake Tanganyika is from research carried out in localised areas. This makes it difficult to extend the results to the whole lake. Consequently, …
-
Assessment of the Kaikoura amateur fishery for rock lobsters
Under the Fisheries Act 1983 fisheries are to be managed under an optimal sustainable yield strategy. An optimal allocation of fish resources requires that the needs of all users are fully considered. In New Zealand almost nothing is known of the needs of amateur fishers. Methods for assessing the …
-
South Africa's implementation of the European community regulation to combat illegal, unreported and unregulated fishing
Illegal, unreported and unregulated (IUU) fishing has become a worldwide challenge facing fisheries in the 21st century. IUU fishing has the effect of undermining existing management and conservation measures at a national, regional or international level. In addition, IUU also defeats the purpose …
-
Fisheries management and flags of convenience
The over-exploitation of the world's fish resources and the depletion of many fish stocks have brought into focus the need for effective fisheries management and conservation measures. Many states have adopted international instruments or have participated in regional conservation committees to …
-
Social and economic factors influencing the emergence of collective action in a traditional fishery of Oman : an empirical assessment of three coastal fishing towns in south Al-Batinah
Overexploitation of many fish stocks underlines the need for more effort directed towards stock management so that the sustainability of resources is assured. To avert the tragic consequences of overfishing in coastal waters, a growing body of theoretical and empirical research provides evidence in …
-
Patterns and causes of population subdivision in the marine environment
… for the management and conservation of marine resources. However, obtaining a precise assessment is particularly challenging since population subdivision results from the interaction of many biological and environmental variables. Here, the patterns of population subdivision that can be …
-
The Influence of Livestock Watering Ponds (Dugouts) on Native Stream Fishes, Especially the Endangered Topeka Shiner (Notropis topeka)
… mosaic of aquatic habitats important to stream fishes. Livestock watering holes (i.e., dugouts) are constructed in floodplains, yet the influence of these manmade wetlands on native stream fishes is unknown. Such information is important for the management of native stream fishes, such as the …
-
Interactions of the South African fur seal and fisheries in the Benguela ecosystem
… between the South African fur seal and fisheries in the Benguela Ecosystem. The operational interactions are examined using a qualitative assessment, and speculative, single-species simulation models are developed to improve understanding of seal population dynamics, present options for …
-
Tracing the Genetic Footprints of the Redbelly Yellowtail Fusilier, Caesio Cuning, Across Multiple Spatial and Evolutionary Scales
<p>Overfishing is one of the most pervasive threats to coral reef ecosystems, and management of these multi-species resources is hampered by limited species-specific population level information. The reefs in the western tropical Pacific Ocean, including the Coral Triangle, are the most bio-diverse …
-
Marine weather variability, tropical cyclone prediction and impacts in the Southwest Indian Ocean
… in tropical cyclone days in the SWIO. The fish resources of the SWIO are negatively associated with intense TC days, e.g. more TC implies lower catch rates. The east South African fish catch also responds to the GPH wave three patterns. Tire daily variability is investigated through …
-
Urban Fisheries in Eastern South Dakota: Assessment of Angler Satisfaction and Fishery Resources
… resource management. Since the late 1960s, urban fishery programs have been used in some states to help increase angler participation and recruitment of new anglers. No formal urban fishery program currently exists in South Dakota, and no standardized assessments have been conducted. Information …