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Fish preservation is the method of increasing the shelf life of fish and other fish products by applying the principles of different branches of science in order to keep the fish, after it has landed, in a condition wholesome and fit for human consumption. [1] [2] Ancient methods of preserving fish included drying, salting, pickling and smoking.
They provide various marine animals with food, protection, and shelter which keep generations of species alive. [13] Furthermore, coral reefs are an integral part of sustaining human life through serving as a food source (i.e., fish and mollusks) as well as a marine space for ecotourism which provides economic benefits. [ 14 ]
This illegal trading is worth an estimate of 7-23 billion [30] and an annual trade of around 100 million plants and animals. [31] In 2021 it was found that this trade has caused a 60% decline in species abundance, and 80% for endangered species. [31] This trade can be devastating to both humans and animals.
Because curing increases the solute concentration in the food and hence decreases its water potential, the food becomes inhospitable for the microbe growth that causes food spoilage. Curing can be traced back to antiquity, and was the primary method of preserving meat and fish until the late 19th century.
Open air drying using sun and wind has been practiced since ancient times to preserve food. [1] Water is usually removed by evaporation (air drying, sun drying, smoking or wind drying) but, in the case of freeze-drying , food is first frozen and then the water is removed by sublimation .
Feeding of animals by visitors is discouraged. [31] [32] Manipulative management acts on a population, either changing its numbers by direct means or influencing numbers by the indirect means of altering food supply, habitat, density of predators, or prevalence of disease. This is appropriate when a population is to be harvested, or when it ...
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The term "conservation" itself may cover the concepts such as cultural diversity, genetic diversity, and the concept of movements environmental conservation, seedbank curation (preservation of seeds), and gene bank coordination (preservation of animals' genetic material). These are often summarized as the priority to respect diversity.