Climate change is one of many ongoing human-induced environmental changes, but few studies consider interactive effects between multiple anthropogenic disturbances. In coastal sub-arctic heathland, we quantified the impact of a factorial design simulating extreme winter warming (WW) events (7 days at 6–7∘C) combined with episodic summer nitrogen (+N) depositions (5 kg N ha-1) on plant winter physiology, ...

Nepal is a poor country where the problems of poverty and food insecurity is very much evident. Aquaculture has been identified as one of the major sectors that could bring about the changes in the lives of poor communities through employment, food security and income. Currently, the Government of Nepal has identified and recognized the contribution of aquaculture towards poverty alleviation and ...

Environmentally sustainable aquaculture depends on accurate understanding of the impacts of aquaculture-derived organic matter (AOM) and the ability of aquaculture systems to absorb and dilute perturbations. To this end, the present study assessed the impacts of AOM from cage culture of Nile tilapia on the ecology of Lake Victoria, Kenya, using fish cages near Anyanga Beach in Siaya County from ...

Ghana’s find of oil and gas in commercial quantities marks the beginning of a billion-dollar industry. The exploration and production of it is a major industrial development but its negative impacts on fisheries can never be underestimated. The research questions to be answered are: how is it likely that the fisheries in Ghana will be affected by the expanding oil and gas activities? What kinds of ...

With increasing activities of multiple sectors in marine spaces, management of marine social–ecological systems requires more holistic approaches. Adopting such an approach, however, presents difficult institutional and disciplinary challenges. Here, we use the International Council for the Exploration of the Sea (ICES) as a case study on the implementation of ecosystem-based management (EBM) and ...

The Ecosystem Approach in Fisheries became a worldwide trend. More and more countries are adopting and developing this in management framework with different rate of success. There is a widespread agreement about the necessity of a new fisheries management strategy, which is taking into account food web linkages and human activity, which may affect sustainability of ecosystem. However, there ...

Since Norwegian Atlantic salmon aquaculture developed into a viable industry in the 1960s, it has grown into one of Norway’s most important sectors. A crucial factor influencing this growth has been the development of a management system which has facilitated the growth in an advantageous way. In the latter part of 2017, a new aquaculture management system started, called the Traffic Light System. ...

This thesis documents the significance of the Dagaa fishing for the population in Kigoma District on Lake Tanganyika.

The intraperitoneal route is favored for administration of inactivated and attenuated vaccines in Atlantic salmon. Nevertheless, the immune responses in the teleost peritoneal cavity (PerC) are still incompletely defined. In this study, we investigated the B cell responses after intraperitoneal Piscirickettsia salmonis (P. salmonis) challenge of Atlantic salmon, focusing on the local PerC response ...

In order to improve the size selectivity and exploitation pattern for cocktail shrimp (Trachypenaeus curvirostris) in shrimp trawl fishery of the South China Sea (SCS), selective properties of four codends were tested and compared. These experimental codends involved two mesh sizes, 30 and 35 mm, and two mesh shapes, diamond-mesh (T0) and diamond-mesh turned by 90 degree (T90), respectively. Our ...