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External gills are the gills of an animal, most typically an amphibian, that are exposed to the environment, rather than set inside the pharynx and covered by gill slits, as they are in most fishes. Instead, the respiratory organs are set on a frill of stalks protruding from the sides of an animal's head. The axolotl has three pairs of external ...
The gill arches of bony fish typically have no septum, so the gills alone project from the arch, supported by individual gill rays. Some species retain gill rakers. Though all but the most primitive bony fish lack spiracles, the pseudobranch associated with them often remains, being located at the base of the operculum.
This is a list of notable fish dishes. In culinary and fishery contexts, fish includes shellfish , such as molluscs , crustaceans and echinoderms . Fish has been an important source of protein for humans throughout recorded history .
“Fish not only offer tons of lean protein, but most fish are high in heart-healthy fats like omega-3s and are also rich in essential minerals like calcium, phosphorus, iron, zinc, iodine, and ...
It goes through paedomorphosis and retains its external gills. [4] Because skin and lung respiration alone is not sufficient for gas exchange, the common mudpuppy must rely on external gills as its primary means of gas exchange. [5] It is usually a rusty brown color [6] and can grow to an average total length (including tail) of 13 in (330 mm). [7]
Gill arches supporting the gills in a pike. Branchial arches or gill arches are a series of paired bony/cartilaginous "loops" behind the throat (pharyngeal cavity) of fish, which support the fish gills. As chordates, all vertebrate embryos develop pharyngeal arches, though the eventual fate of these arches varies between taxa.
Some fish, like sharks and lampreys, possess multiple gill openings, but the most common group of fish alive, the bony fish, have a single gill opening on each side. This opening is hidden beneath a protective bony cover called the operculum. Juvenile bichirs have external gills, a very primitive feature that they share with larval amphibians.
A Peoria-based freshwater fish processing company wants to turn an abundant and renewable local resource into a booming local industry. "Thar's gold in them thar gills!" Why this Peoria fish ...