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Aquatic animal – Animal living mostly or entirely in water; Freshwater fish – Fish that mostly live in freshwater; Marine biology – Scientific study of organisms that live in the ocean; Saltwater fish – Fish that live all or much of their lives in seawater; World fish production; Fishing industry by country; Seafood#Types of seafood
Aquatic animals (especially freshwater animals) are often of special concern to conservationists because of the fragility of their environments. Aquatic animals are subject to pressure from overfishing/hunting, destructive fishing, water pollution, acidification, climate change and competition from invasive species.
Common goods (also called common-pool resources [1]) are defined in economics as goods that are rivalrous and non-excludable. Thus, they constitute one of the four main types based on the criteria: whether the consumption of a good by one person precludes its consumption by another person (rivalrousness)
Fish and other aquatic organisms are also processed into various food and non-food products. Live, fresh or chilled is often the most preferred and highly priced form of fish and represents the largest share of fish for direct human consumption, 45 percent in 2016, followed by frozen (31 percent), prepared and preserved (12 percent) and cured ...
Sauropterygians were a diverse group of aquatic reptiles adapted for flipper-based aquatic locomotion. This group included the plesiosaurs, nothosaurs, and placodonts. Mosasaurs were a group of large, aquatic squamates (relatives of modern-day lizards and snakes) which became the dominant marine predators towards the end of the Cretaceous period.
Oceanic nekton comprises aquatic animals largely from three clades: Vertebrates (phylum Chordata), particularly pelagic fish, cetaceans and sea turtles, form the largest contribution; these animals have endoskeletons made of bones and cartilages and propel themselves via a powerful tail and fan/paddle-shaped appendages such as fins, flippers or ...
[2] Tide pool habitats are home to especially adaptable animals, like snails, barnacles, mussels, anemones, urchins, sea stars, crustaceans, seaweed, and small fish. [1] Inhabitants must be able to cope with constantly changing water levels, water temperatures, salinity, and oxygen content. [2] At low tide, there is the risk of predators like ...
Download as PDF; Printable version; In other projects Wikimedia Commons; Wikidata item; Appearance. ... Fictional aquatic animals (8 C, 9 P) L. Aquatic locomotion (1 ...