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A fish ladder, also known as a fishway, fish pass, fish steps, or fish cannon is a structure on or around artificial and natural barriers (such as dams, locks and waterfalls) to facilitate diadromous fishes' natural migration as well as movements of potamodromous species. [1]
Bubble nests, also called foam nests, are created by some fish and frog species as floating masses of bubbles blown with an oral secretion, saliva bubbles, and occasionally aquatic plants. Fish that build and guard bubble nests are known as aphrophils. [1]
In fishery management, 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 productivity of supplemental stocking from fish hatcheries .
A fish ( pl.: fish or fishes) is an aquatic, anamniotic, gill -bearing vertebrate animal with swimming fins and a hard skull, but lacking limbs with digits. Fish can be grouped into the more basal jawless fish and the more common jawed fish, the latter including all living cartilaginous and bony fish, as well as the extinct placoderms and ...
A robot fish is a type of bionic robot that has the shape and locomotion of a living fish. Most robot fish are designed to emulate living fish which use body-caudal fin (BCF) propulsion, and can be divided into three categories: single joint (SJ), multi-joint (MJ) and smart material -based "soft-body" design.
A fish wheel, also known as a salmon wheel, [1] is a device situated in rivers to catch fish which looks and operates like a watermill. However, in addition to paddles, a fish wheel is outfitted with wire baskets designed to catch and carry fish from the water and into a nearby holding tank.
The Shedd Aquarium is a highly-ranked world aquarium and at one time was the largest indoor facility in the world. It is the first inland aquarium with a permanent saltwater fish collection. The aquarium is located along Lake Michigan in the city's Museum Campus, which also includes other highly-ranked institutions such as Adler Planetarium and the Field Museum of Natural History .
Tetraodontidae. Tetraodontidae is a family of primarily marine and estuarine fish of the order Tetraodontiformes. The family includes many familiar species variously called pufferfish, puffers, balloonfish, blowfish, blowers, blowies, bubblefish, globefish, swellfish, toadfish, toadies, toadle, honey toads, sugar toads, and sea squab. [1]
The term "eel" is also used for some other eel-shaped fish, such as electric eels (genus Electrophorus ), swamp eels (order Synbranchiformes ), and deep-sea spiny eels (family Notacanthidae). However, these other clades, with the exception of deep-sea spiny eels, whose order Notacanthiformes is the sister clade to true eels, evolved their eel-like shapes independently from the true eels. As a ...
Help! I'm A Fish ( Danish: Hjælp, jeg er en fisk; also known as A Fish Tale) is a 2000 Danish-German-Irish animated science fantasy musical film directed by Stefan Fjeldmark, Greg Manwaring and Michael Hegner, and written by Stefan Fjeldmark, Karsten Kiilerich, John Stefan Olsen and Tracy J. Brown. It stars the voices of Alan Rickman, Terry Jones and a then-unknown Aaron Paul .