Showing results for: sustainable fishery Articles
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A novel fish-drying technique for better environment, quality and sustainability
This study deals with the development of appropriate sustainable strategies for environmental-benign aquatic processing systems. In this regard, the interactions between the aquatic system and its environment are first defined. Second, the effect of environmental pollution decreasing the fish quality in the aquatic systems has been exposed. Third, some sustainable strategies for improving the ...
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The economic contributions of anglers to the Los Cabos economy: quantifying value in a sustainable fishery
In 2007 and 2008, a comprehensive study was conducted to estimate the dollars, jobs and tax revenues created by anglers in the Los Cabos region. In that period an estimated 354,013 people, most all of them international visitors, fished in Los Cabos. While in Los Cabos, they spent an estimated $1,785 each for lodging, charter boats, food, transportation, tackle, fuel, and much more. These ...
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Linton Lock (UK) - Case Study
At Linton Lock on the River Ouse between York and Harrogate (North Yorkshire) a LANDY hydropower screw is used to generate sustainable energy, in a fish-friendly way. The screw dimensions 3 meter diameter and 8.5 meter length. It concerns an open compact Archimedes screw, which requires minimal civil work on site. Location: Linton Lock, York, UK Type of screw: compact Capacity: 4.5 m3/sec ...
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Effects of ENSO 1997?1998 on the distribution of small pelagic fish off the west coast of Baja California
Changes in the Small Pelagic Fish (SPF) densities and distribution during ENSO 1997?1998 were found from observations made between 1994 and 2001 along the northwestern coast of Baja California, Mexico. Results showed that temperature and variables associated with the surface mixing processes had an effect on the SPF shoal behaviour and distribution. Between September and December 1997, acoustic ...
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Skretting produces sustainable fish food with the help of BESTMIX Recipe Management - Case Study
Skretting, the global aquafeed division of Nutreco, provides innovative and sustainable nutritional solutions and services to the aquaculture industry. This global player has production facilities in 18 countries on five continents. In 2022, the company produced and supplied more than 3 million tons of high-quality feed for more than 60 species of fish and crustaceans. For Skretting, R&D is ...
By BESTMIX
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Adsorption isotherm of uranyl ions by scales of Corvina fish
Fish scale is a by-product of fishery. The scales are mainly formed by hydroxyapatite and collagen, forming a kind of natural composite with a large specific surface area that intensifies the adsorption process. In this paper, the potential of adsorption of scales of Corvina fish for uranyl ions from nitric solutions was studied. Equilibrium and kinetic studies in adsorption of uranyl ions in ...
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When the traditional meets the modern: the sustainability of the artisanal fishing in Guanabara Bay, Brazil
The industrial development that has contributed to economic prosperity and advancement of standard of living has also brought new risks to people's every day lives and to the environment. This fact has been evident in the multiple uses of environmentally sensitive ecosystems, often resulting in conflicts among the users. This trend is especially apparent in countries like Brazil, where the issues ...
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Improving fish farmers’ climate change adaptation strategies through information utilisation in Akinyele local government area of Oyo State, Nigeria: implication for sustainable fish production
This paper assesses the information utilisation by fish farmers on climate change adaptation strategies with the view of improving their adaptation to climate change and as well increasing fish production in Nigeria. A survey was carried out to obtain data from the farmers. The data collected were analysed by using frequency count, mean and percentage. Information that could have improved ...
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Salmon aquaculture could incorporate seaweed and sea urchins to reduce nitrogen enrichment
Farming fish together with seaweed and other species could help improve the sustainability of aquaculture and reduce pollution. A new study provides a tool for designing sustainable fish farming systems and calculates their potential to recycle waste. An example of a salmon farming system incorporating seaweed and sea urchins could reduce nitrogen releases to the environment by 45%. Over half of ...
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Fisheries bioeconomics: why is it so widely misunderstood?
Many fisheries management systems, even when based on apparently sound science, have failed to prevent severe overfishing. And even when successful in this sense, such systems have frequently resulted in a large degree of excess fishing capacity. The reason for these failures can often be found in a lack of consideration of the economic incentives affecting fishermen. Specifically, when forced to ...
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Challenges and opportunities for fisheries managers in developing countries: a case for economic eclecticism
Fisheries managers and advisors in developing countries face challenges that may be difficult to overcome, because they use doctrines, principles and models of management and economics that do not adequately explain the problems that need to be solved. This may perpetuate non-sustainable policies, because broader issues important to fisheries sustainability are not accounted for more eclectic ...
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Efficiency and sustainability implications of artisanal fisheries activities: evidence from a developing country
Fisheries activities have an integral role to play in the livelihoods and economies of the Pacific island countries. However, the 'race to fish' behaviour assisted by the nature of property rights could lead to unsustainable resource extraction practices. In this paper, primary data on Fiji's artisanal fishermen and their fishing operation is used to examine their technical efficiency. Results ...
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Islands of sustainability in time and space
We review the economics perspective on sustainable resource use and sustainable development. Under standard conditions, dynamic efficiency leads to sustainability of renewable resources but not the other way around. For the economic-ecological system as a whole, dynamic efficiency and intergenerational equity similarly lead to sustainability, but ad hoc rules of sustainability may well lead to ...
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Land-based Aquaculture: Meeting the Challenge of the UN Sustainable Development Goals (SDGs)
In 2015, all United Nations Member States agreed to 17 Global Goals, officially known as the Sustainable Development Goals, or SDGs. These goals serve as a call to action aimed at ending poverty, fighting inequality and addressing the urgency of climate change, by 2030. They are part of a broader global movement encouraging all industries — including aquaculture — to adopt more ...
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Taxpayer dollars subsidizing destruction
One way to correct market failures is tax shifting—raising taxes on activities that harm the environment so that their prices begin to reflect their true cost and offsetting this with a reduction in income taxes. A complimentary way to achieve this goal is subsidy shifting. Each year the world's taxpayers provide at least $700 billion in subsidies for environmentally destructive activities, such ...
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The effects of surface water abstraction for rice irrigation on floodplain fish production in Bangladesh
Abstraction of surface water for irrigation poses a serious threat to the sustainability of floodplain fisheries in Bangladesh. Previous fisheries research has accorded a central role to dry-season (Rabi) water maintenance in safeguarding the health of the fishery, but rice irrigation water abstraction dries up water bodies at a rapid rate. Having reviewed various aspects of this water ...
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Prevent Fish Kill in the Spring
Pond Deicing Can Help Prevent Fish Kill Keeping the pond open will help keep oxygen in the water, attract water fowl and help prevent fish kills in the spring. The most common cause of fish kills is suffocation due to lack of dissolved oxygen. Most dissolved oxygen is produced by algae and aquatic plants through photosynthesis. A lesser but also important source of oxygen in water is diffusion ...
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The Ecological Fishprint of Nations: Measuring Humanity’s Impact on Marine Ecosystems
In November, 2006, a prominent team of ecologists and economists issued this dire warning: if current fishing patterns continue, all major commercial fish species will suffer population collapses by 2048. In March 2005, the United Nations State of the World Fisheries and Aquaculture report stated that 7 of the top 10 marine fish species, accounting for about 30 percent of all capture fisheries ...
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The Role of Mangroves in Fisheries Enhancement
In 2011 humans caught and consumed 78.9 million tonnes of fish, crustaceans, molluscs and other species groups from the world’s oceans, accounting for 16.6% of the world’s animal protein intake (FAO 2012). This is projected to increase further, to over 93 million tonnes by 2030 (World Bank 2013). Global demand for fish products has increased dramatically over recent decades. Fishing ...
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Moving Up the Food Chain
For most of the time that human beings have walked the earth, we lived as hunter-gatherers. The share of the human diet that came from hunting versus gathering varied with geographic location, hunting skills, and the season of the year. During the northern hemisphere winter, for instance, when there was little food to gather, people there depended heavily on hunting for survival. Our long history ...
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