Viser treff 146-165 av 184

    • The replacement of fishing vessels in South Africa : a case study of West Coast Rock Lobster nearshore fishery. 

      Tuko, Luyanda (Master thesis; Mastergradsoppgave, 2010-05-14)
      The changing of vessels in the West Coast Rock Lobster nearshore fishery is one of the important issues which need attention within the South African fisheries management, that is, by fisheries authorities and industry (fishing right holders). This is due to the increasing problems regarding frequent vessel changes in the South African fisheries and the consequences in terms of increased fishing ...
    • Reproduction and winter biology of polar cod Boreogadus saida from Svalbard waters 

      Korshunova, Ekaterina (Master thesis; Mastergradsoppgave, 2012-06-05)
      Polar cod (Boreogadus saida) is considered to be a key species in the Arctic marine ecosystems. Yet detailed or even basic knowledge regarding its biology and adaptations, especially during the polar night, are in many cases poor. No field data is presently available on the gonad development of polar cod, its reproductive biology and associated bioenergetics. Accordingly, polar cod was sampled at ...
    • Reproductive potential and maturity staging of Greenland Halibut (Reinhardtius hippoglossoides, Walbaum) 

      Agulló Núñez, Lara (Master thesis; Mastergradsoppgave, 2012-06-06)
      Greenland halibut (Reinhardtius hippoglossoides, Walbaum) is a commercially important fish species in the Barents Sea. This fishery has been strongly regulated, including a fishing ban from 1992 to 2009. Studies of fish reproduction are needed to extend the knowledge about this species in order to improve management and to avoid another decay of the stock. This Master Thesis describes the relationships ...
    • Research and management of competing small-scale and industrial fisheries: a modeling study of the shrimp fisheries in Mozambique 

      Torres Coll, Ricardo Javier (Master thesis; Mastergradsoppgave, 2013-12-02)
      The shrimp fisheries in tropical areas often present interactions between the fleets that are taking part in the fishery: industrial fleet and small-scale sector. The fisheries in the Sofala bank, Mozambique, are an excellent case study of such interactions. In this study a simulation model is used to analyze different scenarios and management issues: lack of information in the fishery, catches of ...
    • Resilience in the tsunami-affected area: A case study on social capital and rebuilding fisheries in Aceh-Indonesia 

      Ardiansyah, Hasyim (Master thesis; Mastergradsoppgave, 2007-05-30)
      The tsunami disaster in NAD province has affected and reduced significantly the social and ecological resilience of coastal communities. The ‘huge aid’ and large number of parties involved during fisheries rebuilding process are essential in supporting the rehabilitation of fisheries infrastructure and knowledge transfer in order to improve fishers and fish-farmers capacity in dealing with ecological ...
    • Resource Management and the Challenges of Migration in Artisanal Fisheries. A case study on the mobility of the fishing people in Jamestown and Chorkor fishing communities in Ghana 

      Atuobi, Rexford (Master thesis; Mastergradsoppgave, 2016-05-16)
      Small-scale (artisanal) fishing is increasingly important to the rural poor and accounts for majority of fish catches in Africa. Migration or mobility (movement) is a basic feature as it constitutes one of the strategies that fishing communities often use in order to secure their livelihoods. It forms an integral part of the small-scale fishing industry and has influenced the fishing sector for ...
    • Resource tax, Quality of Fishing Rights, and Economic Performance A comparative study of the fishing sectors in Iceland and Norway 

      Ólafsdóttir, Hallveig (Master thesis; Mastergradsoppgave, 2021-05-16)
      Property rights and economic performance have been highly linked concepts, where the former influence the latter. In this thesis, we seek to explore property rights as fishing rights in two large fishing nations, Norway and Iceland, and the economic performance of the fishing sectors. However, there is a fundamental difference between the fishing sector in Iceland and Norway. In Iceland, the government ...
    • Results based management as applied to fisheries in the reform of the European common fishery policy 

      Garcia, Xoel Chamorro (Master thesis; Mastergradsoppgave, 2013-08-15)
      The European Common Fisheries Policy is under reform. The Green Paper identifies the form of regulating management of the European fisheries as one of the main reasons for which the process of management is ineffective at achieving its objectives and at fitting an ecosystem based management approach. This thesis analyzed the innovative concept of results-based management as applied in fisheries as ...
    • Right tool, wrong target? Co-management in the Ugandan fishery sector 

      Olyel, Daisy Aciro (Master thesis; Mastergradsoppgave, 2006-06-02)
      This thesis examines the effectiveness of the co-management approach in the fishery management system of Uganda with specific case reference to the implementation of the Beach Management Units (BMU), an institutional structure for the co-management approach, in the Lake Kyoga and Lake Victoria fishing villages. The theoretical frame work of this thesis involves looking at the concept of co-management, ...
    • Rising temperatures in a subarctic lake lead to increased somatic growth rates for Arctic charr (Salvelinus alpinus, (L.)) 

      Kotowych, Nicholas Volodya (Master thesis; Mastergradsoppgave, 2019-05-15)
      Cold water species living at high latitudes are expected to respond rapidly to climate change due to their sensitivity to increasing temperature. Water temperature strongly affects the ecology of fish, influencing food intake and conversion, and ultimately somatic growth rate. In a lake, somatic growth rates will also be contingent on food availability, which is negatively affected by fish abundance. ...
    • Risky businesses : a perspective on fishers' risk in the oil versus fish dilemma in Lofoten and Vesterålen 

      Høgi, Mia (Master thesis; Mastergradsoppgave, 2010-05-14)
      Being a fisher is considered to be one of the most dangerous occupations in the world. Injuries are common, and death is a recurring event. The fishers experience competition for the space they are utilize and in the most important fishing area in Norway, Lofoten and Vesterålen; the oil industry has stated their interest in what they think is the most unopened prospective area on the Norwegian ...
    • The role of the market in the development of aquaculture in Ghana 

      Hamenoo, Edmond Kwablah (Master thesis; Mastergradsoppgave, 2011-05-13)
      Aquaculture in Ghana has over the years been little productive despite earlier claims about the high potential of the country. These claims are supported by an abundance of latent natural resources that can support large scale commercial production and the existence of a strong traditional market for fish products. A survey of consumer behavior in the local market for tilapia and fish in general was ...
    • The role of “green” licences in defining environmental controls in Norwegian salmon aquaculture 

      Nikitina, Ekaterina (Master thesis; Mastergradsoppgave, 2015-05-14)
      The study examines the problem of externalities in the Norwegian aquaculture sector. The two main environmental challenges of Norwegian salmon aquaculture at the moment are the sea lice spread and farmed fish escape. Without dealing with these challenges, no increase in production was possible. At the same time the growth in the output is needed to satisfy the increasing demand for salmon products ...
    • Salmon lice (Lepeophtheirus salmonis) control method effectiveness in Atlantic salmon (Salmo salar) aquaculture. A systematic literature review. 

      Cerbule, Kristine (Master thesis; Mastergradsoppgave, 2018-05-15)
      Background: Salmon lice (Lepeophtheirus salmonis) is an increasing limiting factor of Atlantic salmon (Salmo salar) aquaculture development in Northern Hemisphere. Different types of treatments have been tested and used to control lice on farmed Atlantic salmon with varying results. The aim of this systematic review is to examine effectiveness expressed as the reduction of the number of lice and ...
    • Seabed minerals in Norway. An analysis of conflicts and sustainability issues. 

      Skancke, Ida Seljevoll (Master thesis; Mastergradsoppgave, 2022-05-16)
      The increasing demand for metals for use in renewable technologies and electronics has led to a surge in the interest in the minerals found on the seabed. The demand is driven by the need for green technologies to reach climate goals, population growth, and environmental, social, and economic challenges with today’s mining methods on land. Deep-sea mining is an industry still in its infancy, and ...
    • Seeking to legitimize: Social sustainability and legitimacy in the Traffic Light System 

      Vik, Christian (Master thesis; Mastergradsoppgave, 2019-05-15)
      Over the last 50 years, the management needs of the Norwegian aquaculture industry have become increasingly complex. The stakeholders in the management vary diversely from environmental agencies and NGOs, to local and national governmental bodies, to those operating the farms themselves. Consequently, the establishment of the Traffic Light System as a management tool has been a long and challenging ...
    • Size-weight structure and growth of Mytilus edulis L. in littoral zone of the White, Barents and Norwegian Seas 

      Mashnin, Aleksandr (Master thesis; Mastergradsoppgave, 2017-05-14)
      The object of the study is the mussel Mytilus edulis L., which inhabits the littoral of the White, Barents and Norwegian Seas. The work is based on materials collected by the author in 2011-2015. Data on the spatial distribution, size-weight and age structure of the mussel settlements were obtained from the littoral sections of the Seas listed above. It was found out that the maximum density of the ...
    • Snow crab (Chionoecetes opilio) in the Barents Sea. Possibility of harvesting a new species by the Russian Fleet 

      Sherstneva, Aleksandra (Master thesis; Mastergradsoppgave, 2013-11-16)
      Snow crab (Chionoecetes opilio) is a small crab of a high commercial value, with delicious and nutricious meat. In the global market, it is a popular marine product. As a rule, snow crab is sold frozen in limb sections or as separate meat. The product price is difficult to define as it depends on a price for the exported snow crab, on the currency rate, meat quality and economic situations in importing ...
    • Snow crab (Chionoecetes opilio) in the Barents Sea. Diet, biology and management 

      Hansen, Harald Sakarias Brøvig (Master thesis; Mastergradsoppgave, 2015-05-15)
      This thesis seeks to develop a better understanding of snow crab (Chionoecetes opilio), a nonnative species that has established in the Barents Sea. Very little is known about the species role in the ecosystem, but it can be perceived both as a pest and as a goldmine. It is expected that the population will accommodate a significant fishery. As a non-native benthic crustacean spreading throughout ...
    • Snow crab (Chionoecetes opilio) interactions with bottom trawls and possible conflicts between trawl fleets and pot fisheries in the Northeast Barents Sea 

      Luettel, Allison (Master thesis; Mastergradsoppgave, 2015-08-15)
      Approximately two decades ago, snow crab (Chionoecetes opilio) were discovered in the Barents Sea. The areas in which they have come to establish themselves, in many instances, overlaps with areas trawled by the commercial groundfish fleet, consequently, leading to interactions between snow crab and bottom gear. Snow crabs, which after settling to the bottom go through a series of molts in order to ...