نتایج جستجو برای: conservation aquaculture
تعداد نتایج: 111202 فیلتر نتایج به سال:
This article analyzes spatial and temporal changes of aquaculture land use in Yunlin County, Taiwan, and discusses the driving forces for these changes. Digital land-use maps and satellite imagery for 1982, 1988, 1994, and 2002 were used to extract aquaculture areas. A geographic information system was used to derive changes in aquaculture areas and to compute the spatial clustering statistics ...
Twelve per cent of the world’s population is currently securing their livelihood partly, or fully, through the fisheries and aquaculture sector (FAO Fisheries and Aquaculture Department, 2016). Most people occupied in this sector rely on wild catches; however, fish stocks are becoming depleted with 90% of stocks being fully or overexploited (FAO Fisheries and Aquaculture Department, 2016). A mo...
In the 21 century, aquaculture developers will need to spend as much time on technological advances coming to the field as they do in designing ecological approaches that clearly exhibit stewardship of the environment and coastal societies. The degraded state of aquatic ecosystems worldwide, combined with public concerns about adding new sources of pollution to already overburdened aquatic ecos...
Freshwater eels are important animals because they have a unique catadromous life history and are used as food resources. European, American and Japanese eel populations now are considered to be outside the safe biological limits and are seriously threatened with extinction. Therefore, the European eel was recently categorised as critically endangered by the European Union and the United Nation...
Recent studies have reported that crustacean age determination is possible. We applied a direct ageing method (i.e. transverse cross sectioning of gastric ossicles) to a subtropical freshwater crayfish (Cherax quadricarinatus) sourced from an aquaculture population. Growth mark periodicity and the potential for chronological depositions were investigated by staining C. quadricarinatus with calc...
Recent advances in genomic and post-genomic technologies have now established the new standard in medical and biotechnological research. The introduction of next-generation sequencing, NGS,has resulted in the generation of thousands of genomes from all domains of life, including the genomes of complex uncultured microbial communities revealed through metagenomics. Although the application of ge...
The review of water recirculation in aquaculture practice presents the reality and benefits a developed system for effective re-use with optimum quality, intensive fish production. This advanced mechanism adequate proves its relevance as it provides production, conservation available water, space, ease site location, flexibility to locate production facilities near large markets, quick disease ...
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