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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.
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 (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 ...
Spawn (biology) The spawn (eggs) of a clownfish. The black spots are the developing eyes. Spawn is the eggs and sperm released or deposited into water by aquatic animals. As a verb, to spawn refers to the process of freely releasing eggs and sperm into a body of water (fresh or marine); the physical act is known as spawning.
Build-a-lot was the #1 Action/Arcade game of 2007 on Big Fish Games. Build-a-lot was Casual-Game-of-the-Week at killerbetties.com, who highlighted the simple but smooth and pleasing animation, sound effects and surprisingly fun micromanagement. It was rated 4.5 out of 5 stars by Yahoo! Games users.
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.
Antarctic icefish (suborder Notothenioidei of order Perciformes) Antenna codlet ( Bregmaceros atlanticus) Arapaima (genus Arapaima) Archerfish (genus Toxotes and family Toxotidae) Arctic char. Armored gurnard (family Peristediidae) Armored searobin (family Peristediidae) Armorhead (family Pentacerotidae) Armorhead catfish (genus Cranoglanis)
Along the coast of developed areas of North America and Europe permits are now required to build a fish weir. Depending on fish populations in an area, and local maritime use, fish weir construction may be prohibited entirely.
O. agilis de Vis, 1886. The platypus ( Ornithorhynchus anatinus ), [3] sometimes referred to as the duck-billed platypus, [4] is a semiaquatic, egg-laying mammal endemic to eastern Australia, including Tasmania. The platypus is the sole living representative or monotypic taxon of its family Ornithorhynchidae and genus Ornithorhynchus, though a ...
A seahorse (also written sea-horse and sea horse) is any of 46 species of small marine bony fish in the genus Hippocampus. "Hippocampus" comes from the Ancient Greek hippókampos ( ἱππόκαμπος ), itself from híppos ( ἵππος) meaning "horse" and kámpos ( κάμπος) meaning "sea monster" [4] [5] or "sea animal". [6]