spawning substrate
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spawning ropes — unwound ropes tied together and weighted and used as a removable spawning substrate in ponds … Dictionary of ichthyology
Substrate (aquarium) — Gravel in a freshwater aquarium The substrate of an aquarium refers to the material used on the tank bottom. It can affect water chemistry, filtration, and the well being of the aquarium s inhabitants, and is also an important part of the… … Wikipedia
spawning box — a box filled with gravel and submerged in a stream or lake providing a substrate for fish eggs to be deposited … Dictionary of ichthyology
spawning rush — a rapid burst of swimming, usually vertical or steeply inclined, that culminates in the release of gametes at its apex, followed by a rapid return to the substrate or aggregation … 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
Kobuk River — The Kobuk River is approximately convert|280|mi|km|0|lk=on long, located in the Arctic region of northwestern Alaska in the United States. [USGS Geographic Names Information System (GNIS). [http://geonames.usgs.gov/pls/gnispublic/f?p=gnispq:3:::NO… … Wikipedia
Coral reef — Marine habitats Biodiversity of a coral reef Lit … Wikipedia
Deep water coral — Table coral, which can live in deep water (in this picture, it is in shallow, warm water) The habitat of deep water corals, also known as cold water corals, extends to deeper, darker parts of the oceans than tropical corals, ranging from near the … Wikipedia
Cold seep — Marine habitats Tube worms are among the dominant species in one of four cold seep community types in the Gulf of Mexico. Littoral zone … Wikipedia
Demersal fish — Bluespotted ribbontail ray resting on the seafloor Demersal fish live on or near the bottom of the sea or lakes.[1] They occupy the sea floors and lake beds, which usually consist of mud, sand, gravel or rocks … Wikipedia
