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The common name of these fish is related to their bizarre, tubular eyes. The genus name Gigantura refers to the Gigantes , a race of giants in Greek mythology —coupled with the suffix oura , meaning 'tail', thus Gigantura refers to the greatly elongated, ribbon-like lower half of the tailfin that may comprise over half of the total body length.
Foureye butterflyfish usually frequent shallow inshore waters, where they feed on a variety of invertebrates, mainly zoantharians, sea anemones, scleractinians, [6] polychaete worms, gorgonians, tunicates, crustaceans and fish eggs. [7] This fish is known for its uncanny ability to swim in and around coral heads and reefs.
Pages in category "Animated television series about fish" The following 37 pages are in this category, out of 37 total. This list may not reflect recent changes .
The health of an aquatic ecosystem is degraded when the ecosystem's ability to absorb a stress has been exceeded. A stress on an aquatic ecosystem can be a result of physical, chemical or biological alterations to the environment. Physical alterations include changes in water temperature, water flow and light availability.
They also possess aglomerular kidneys, an adaptation that aids the retention of these antifreeze proteins. [ 16 ] While the majority of animal species have up to 45% of hemoglobin (or other oxygen-binding and oxygen-transporting pigments) in their blood, the notothenioids of the family Channichthyidae do not express any globin proteins in their ...
[5] [6] Corallivorous fish come from 11 different families. [5] 39 species are obligate corallivores. [5] Butterflyfish have a wide range of adaptations that facilitate coral consumption. Some butterflyfish have long mouth that they use like forceps to pluck off individual coral polyps and some use their teeth to scrape off coral tissue. [2]
In fish a countercurrent flow (lower diagram) of blood and water in the gills is used to extract oxygen from the environment. [6] [7] [8] All basal vertebrates breathe with gills. The gills are carried right behind the head, bordering the posterior margins of a series of openings from the esophagus to the exterior.
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