Fish ladder
A fish ladder, also known as a fishway, fish pass or fish steps, is a structure on or around artificial and natural barriers (such as dams, locks and waterfalls) to facilitate diadromous fishes' natural migration. Most fishways enable fish to pass around the barriers by swimming and leaping up a series of relatively low steps (hence the term ladder) into the waters on the other side. The velocity of water falling over the steps has to be great enough to attract the fish to the ladder, but it cannot be so great that it washes fish back downstream or exhausts them to the point of inability to continue their journey upriver.
primaryTopic
Fish ladder
A fish ladder, also known as a fishway, fish pass or fish steps, is a structure on or around artificial and natural barriers (such as dams, locks and waterfalls) to facilitate diadromous fishes' natural migration. Most fishways enable fish to pass around the barriers by swimming and leaping up a series of relatively low steps (hence the term ladder) into the waters on the other side. The velocity of water falling over the steps has to be great enough to attract the fish to the ladder, but it cannot be so great that it washes fish back downstream or exhausts them to the point of inability to continue their journey upriver.
has abstract
A fish ladder, also known as a ...... ontinue their journey upriver.
@en
Een vistrap of vispassage is e ...... voor de aanleg van een bypass.
@nl
Eine Fischtreppe oder Fischpas ...... die EU-Wasserrahmenrichtlinie.
@de
Il passaggio per pesci è un'op ...... vuti agli effetti delle piene.
@it
Przepławka – budowla rzeczna l ...... by nigdy nie pływały na tarło.
@pl
Una escalera de peces es un ti ...... ácter eminentemente ecológico.
@es
Une passe à poissons est un di ...... M€ sur le Rhin à Gambsheim.).
@fr
Рыбопропускны́е сооруже́ния — ...... ственной миграции рыб по реке.
@ru
魚道(ぎょどう)は、魚の遡行が妨げられる箇所で、遡行を助けるために川に設ける工作物である。
@ja
魚道(英语:Fish way)或稱為魚梯(Fish ladd ...... 吸引魚隻溯溪,卻又不會耗盡魚的體力,使牠無法繼續餘下的旅程。
@zh
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comment
A fish ladder, also known as a ...... ontinue their journey upriver.
@en
Een vistrap of vispassage is e ...... van de volgende constructies:
@nl
Eine Fischtreppe oder Fischpas ...... ng von baulichen Hindernissen.
@de
Il passaggio per pesci è un'op ...... cosiddetto continuum fluviale:
@it
Przepławka – budowla rzeczna l ...... one komory, ewentualnie sieci.
@pl
Una escalera de peces es un ti ...... ácter eminentemente ecológico.
@es
Une passe à poissons est un di ...... ces peuvent en profiter aussi.
@fr
Рыбопропускны́е сооруже́ния — ...... ственной миграции рыб по реке.
@ru
魚道(ぎょどう)は、魚の遡行が妨げられる箇所で、遡行を助けるために川に設ける工作物である。
@ja
魚道(英语:Fish way)或稱為魚梯(Fish ladd ...... 吸引魚隻溯溪,卻又不會耗盡魚的體力,使牠無法繼續餘下的旅程。
@zh
label
Escalera de peces
@es
Fischtreppe
@de
Fish ladder
@en
Passaggio per pesci
@it
Przepławka
@pl
Vistrap
@nl
Échelle à poissons
@fr
Рыбопропускные сооружения
@ru
魚道
@ja
魚道
@zh