spawning bed

См. также в других словарях:

• Spawning bed — A spawning bed is an artificial bed constructed by wildlife professionals in order to improve the ability of desired game fish to reproduce. Increasing the spawning ability of a fish population may reduce pressure on a fishery and improve the… …   Wikipedia

• spawning bed — nerštavietė statusas T sritis ekologija ir aplinkotyra apibrėžtis Vieta, kurioje neršia žuvys. Gali būti natūrali ir dirbtinė. Žuvų, neršiančių lipnius ikrus, natūralioji nerštavietė dažniausiai būna vandens telkinys akmenuotu, žvirgždėtu,… …   Ekologijos terminų aiškinamasis žodynas

• spawning-bed — spawnˈing bed or spawnˈing ground noun 1. A bed or place in the bottom of a stream on which fish deposit their spawn 2. A place where new ideas, etc are generated • • • Main Entry: ↑spawn …   Useful english dictionary

• spawning area — nerštavietė statusas T sritis ekologija ir aplinkotyra apibrėžtis Vieta, kurioje neršia žuvys. Gali būti natūrali ir dirbtinė. Žuvų, neršiančių lipnius ikrus, natūralioji nerštavietė dažniausiai būna vandens telkinys akmenuotu, žvirgždėtu,… …   Ekologijos terminų aiškinamasis žodynas

• spawning ground — nerštavietė statusas T sritis ekologija ir aplinkotyra apibrėžtis Vieta, kurioje neršia žuvys. Gali būti natūrali ir dirbtinė. Žuvų, neršiančių lipnius ikrus, natūralioji nerštavietė dažniausiai būna vandens telkinys akmenuotu, žvirgždėtu,… …   Ekologijos terminų aiškinamasis žodynas

• spawning channel — an artificial gravel bed area in which flow, depth and velocity are controlled at ideal levels for spawning by a particular species of fish …   Dictionary of ichthyology

• spawning-ground — spawnˈing bed or spawnˈing ground noun 1. A bed or place in the bottom of a stream on which fish deposit their spawn 2. A place where new ideas, etc are generated • • • Main Entry: ↑spawn …   Useful english dictionary

• bed — 1) the bottom of a water body 2) a circular area on the bottom of a lake or river cleaned out by fish for spawning, e.g. various sunfishes and basses (Centrarchidae) 3) a collective noun (a noun that denotes a collection of persons or things… …   Dictionary of ichthyology

• Deep sand bed — A deep sand bed is[1] a filtration method used in some saltwater aquariums. A deep sand bed, similar to the Berlin Method, is designed to cultivate anaerobic bacteria in the bottom layers of sand, converting nitrate to nitrogen gas to remove… …   Wikipedia

• Stream bed — The bed of this stream is armored with rocks, some very rounded (having had a longer life in the stream) and some not. A stream bed is the channel bottom of a stream, river or creek; the physical confine of the normal water flow. The lateral… …   Wikipedia

• 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