Search results
Results from the WOW.Com Content Network
Aquaponics is a food production system that couples aquaculture (raising aquatic animals such as fish, crayfish, snails or prawns in tanks) with hydroponics (cultivating plants in water) whereby the nutrient-rich aquaculture water is fed to hydroponically grown plants.
A marine aquarium is an aquarium that keeps marine plants and animals in a contained environment. Marine aquaria are further subdivided by hobbyists into fish only ( FO ), fish only with live rock ( FOWLR ), and reef aquaria. Fish only tanks often showcase large or aggressive marine fish species and generally rely on mechanical and chemical ...
A freshwater aquarium with plants and various tropical fish. An aquarium ( pl.: aquariums or aquaria) is a vivarium of any size having at least one transparent side in which aquatic plants or animals are kept and displayed. Fishkeepers use aquaria to keep fish, invertebrates, amphibians, aquatic reptiles, such as turtles, and aquatic plants.
Clownfish. Clownfish or anemonefish are fishes from the subfamily Amphiprioninae in the family Pomacentridae. Thirty species of clownfish are recognized: one in the genus Premnas, while the remaining are in the genus Amphiprion. In the wild, they all form symbiotic mutualisms with sea anemones.
Salmon pens off Vestmanna in the Faroe Islands Fish cages containing salmon in Loch Ailort, Scotland.. Mariculture, sometimes called marine farming or marine aquaculture, is a specialized branch of aquaculture (which includes freshwater aquaculture) involving the cultivation of marine organisms for food and other animal products, in enclosed sections of the open ocean (offshore mariculture ...
Mackerel range in size from small forage fish to larger game fish. Coastal mackerel tend to be small. The king mackerel is an example of a larger mackerel. Most fish are cold-blooded, but exceptions exist. Certain species of fish maintain elevated body temperatures.
Fishing – the activity of trying to catch fish. Fisherman or fisher – someone who captures fish and other animals from a body of water, or gathers shellfish. Fishery – the activities leading to and resulting in the harvesting of fish. It may involve capture of wild fish or raising of fish through aquaculture.
Elasmobranchii ( / ɪˌlæzməˈbræŋkiaɪ / [6]) is a subclass of Chondrichthyes or cartilaginous fish, including modern sharks (superorder Selachii), rays, skates, and sawfish (superorder Batoidea ). Members of this subclass are characterised by having five to seven pairs of gill clefts opening individually to the exterior, rigid dorsal fins ...