spawning trigger — an environmental cue or change which stimulates a fish to spawn. Often temperature (increase or decrease) but can be a salinity change, increase in food supply, water level or daylength. Some fish do not have triggers, breeding continuously or… … Dictionary of ichthyology
Spawn (biology) — The spawn (eggs) of a clownfish. The black spots are the eyes developing. Spawn refers to the eggs and sperm released or deposited, usually into water, by aquatic animals. As a verb, spawn refers to the process of releasing the eggs and sperm,… … Wikipedia
Pelagic fish — A school of large pelagic predator fish (giant trevally) sizing up a school of small pelagic prey fish (anchovies) Pelagic fish live near the surface or in the water column of coastal, ocean and lake waters, but not on the bottom of the sea or… … Wikipedia
Diversity of fish — Fish come in many shapes and sizes. This is a sea dragon, a close relative of the seahorse. They are camouflaged to look like floating seaweed.[1][2][3] … Wikipedia
Fish migration — Many species of salmon are anadromous and migrate long distances up rivers and streams to spawn. Many types of fish migrate on a regular basis, on time scales ranging from daily to annually or longer, and over distances ranging from a few metres… … Wikipedia
Coldwater fish — Coldwater fish, in the context of aquariums, refers to fish species that prefer cooler water temperatures than tropical fish, typically below 20 °C (68 °F). Some examples are koi and goldfish. These species tend to grow more slowly and live… … Wikipedia
Coral reef fish — The fish that inhabit coral reefs are numerous and diverse. Coral reef fish are fish which live amongst or in close relation to coral reefs. Coral reefs form complex ecosystems with tremendous biodiversity. Among the myriad inhabitants, the fish… … Wikipedia
Wrasse — For other uses, see Wrasse (disambiguation). Wrasses Moon wrasse, Thalassoma lunare, a typical wrasse Scientific classification Kingdom … Wikipedia
Coastal fish — Schooling threadfin, a coastal species Coastal fish, also called offshore fish or neritic fish, are fish that inhabit the sea between the shoreline and the edge of the continental shelf. Since the continental shelf is usually less than 200 metres … Wikipedia
Round goby — Conservation status Least Concern (IUCN 3.1) … Wikipedia
