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Due to Hawaii's isolation 30% of the fish are endemic (unique to the island chain). [1] The Hawaiian Islands comprise 137 islands and atolls, with a land area of 6,423.4 square miles (16,636.5 km 2). [2] This archipelago and its oceans are physiographically and ethnologically part of the Polynesian subregion of Oceania.
The great majority of bony fish species have five pairs of gills, although a few have lost some over the course of evolution. The operculum can be important in adjusting the pressure of water inside of the pharynx to allow proper ventilation of the gills, so that bony fish do not have to rely on ram ventilation (and hence near constant motion ...
The flagtails (āhole [4] or āholehole [5] in the Hawaiian language) are a family (Kuhliidae) of centrarchiform ray-finned fish of the Indo-Pacific area. The family consists of about 12 species in one genus, Kuhlia. Most are euryhaline and often found in brackish water, but the genus also includes species restricted to marine or fresh water.
The species inhabits the tropical to temperate waters of the Indo-Pacific and central Pacific, ranging from South Africa in the west to Hawaii in the east. The whitefin trevally is a moderate-sized fish, growing to 37 cm, and is distinguished by a number of morphological traits, including fin size, gill raker count, and colour.
The Hawaiian flagtails are species of the genus of flagtail fishes found in the Hawaiian Islands. Two species are Kuhlia sandvicensis [1] and K. xenura. [2] K. xenura is endemic to the islands. In the Hawaiian language, āholehole refers to the young stage, [3] and āhole the mature fish. It was sometimes called puaʻa kai, literally "sea pig". [4]
Gills or gill-like organs, located in different parts of the body, are found in various groups of aquatic animals, including mollusks, crustaceans, insects, fish, and amphibians. Semiterrestrial marine animals such as crabs and mudskippers have gill chambers in which they store water, enabling them to use the dissolved oxygen when they are on land.
Freshwater fish of Hawaii (5 P) Pages in category "Fish of Hawaii" The following 200 pages are in this category, out of 200 total.
Such gills are characteristic of cartilaginous fish such as sharks and rays, as well as deep-branching vertebrates such as lampreys. In contrast, bony fishes have a single outer bony gill covering called an operculum. Most sharks and rays have five pairs of gill slits, but a few species have 6 or 7 pairs. Shark gill slits lie in a row behind ...