''Anisotremus virginicus'', the porkfish, also known as the Atlantic porkfish sweetlips, dogfish or paragrate grunt, is a

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

of marine

ray-finned fish Actinopterygii (; ), members of which are known as ray-finned fish or actinopterygians, is a class of bony fish that comprise over 50% of living vertebrate species. They are so called because of their lightly built fins made of webbings of sk ...

, a

grunt Grunt, grunts or grunting may refer to: Sound and music * Grunting (tennis), in tennis refers to the loud noise, sometimes described as "shrieking" or "screaming", made by some players during their strokes * Death grunt, the death metal singi ...

belonging to the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Haemulidae Haemulidae is a family (biology), family of fishes in the order (biology), order Perciformes known commonly as grunts. It is made up of the two subfamily, subfamilies Haemulinae (grunts) and Plectorhynchinae (sweetlips), which contain about 133 ...

. It is native to the western

Atlantic Ocean The Atlantic Ocean is the second largest of the world's five borders of the oceans, oceanic divisions, with an area of about . It covers approximately 17% of Earth#Surface, Earth's surface and about 24% of its water surface area. During the ...

Description

''Anisotremus virginicus'' has a deep, compressed body with a very high back and a short, blunt head. The mouth is positioned low on the head, it is horizontal with fleshy lips and the jaws are equipped with bands of teeth on both jaws. The outer band of teeth are conical in shape. The flanks are marked with alternating yellow and silver stripes. There is a black bar running diagonally from over the eye to the upper lip and a second, vertical black bar runs from the front of the

dorsal fin A dorsal fin is a fin on the back of most marine and freshwater vertebrates. Dorsal fins have evolved independently several times through convergent evolution adapting to marine environments, so the fins are not all homologous. They are found ...

to the base of the

pectoral fin Fins are moving appendages protruding from the body of fish that interact with water to generate thrust and help the fish aquatic locomotion, swim. Apart from the tail or caudal fin, fish fins have no direct connection with the vertebral column ...

. They have yellow fins, the caudal fin is deeply forked. The juveniles do not have the two black bars and have two black stripes which run horizontally along the middle of the flanks and a black blotch close to the

caudal fin Fins are moving appendages protruding from the body of fish that interact with water to generate thrust and help the fish swim. Apart from the tail or caudal fin, fish fins have no direct connection with the back bone and are supported only ...

base and the head is vivid yellow. The dorsal fin contains 12 spines and 16–18 soft rays while the

anal fin Fins are moving appendages protruding from the body of fish that interact with water to generate thrust and help the fish swim. Apart from the tail or caudal fin, fish fins have no direct connection with the back bone and are supported o ...

contains 3 spines and 9 soft rays. This species attains a maximum total length of , although is more typical, and the maximum published weight is .

Distribution

''Anisotremus virginicus'' is found in the western Atlantic Ocean from northeastern

Florida Florida ( ; ) is a U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders the Gulf of Mexico to the west, Alabama to the northwest, Georgia (U.S. state), Georgia to the north, the Atlantic ...

south along its Atlantic coast to the Bahamas, then westwards into the

Gulf of Mexico The Gulf of Mexico () is an oceanic basin and a marginal sea of the Atlantic Ocean, mostly surrounded by the North American continent. It is bounded on the northeast, north, and northwest by the Gulf Coast of the United States; on the southw ...

from the

Florida Keys The Florida Keys are a coral island, coral cay archipelago off the southern coast of Florida, forming the southernmost part of the continental United States. They begin at the southeastern coast of the Florida peninsula, about south of Miami a ...

north to

New Port Richey New Port Richey is a city in Pasco County, Florida, United States. It is a suburban city included in the Tampa-St. Petersburg-Clearwater, Florida Metropolitan Statistical Area. The population was counted at 16,728 in the 2020 census. History ...

on Florida's Gulf coast. Within the Gulf it is found at the Flower Garden Banks and on the Mexican coast as far south as the northern Yucatan Peninsula and also northwestern Cuba. It then ranges southwards throughout the

Caribbean Sea The Caribbean Sea is a sea of the Atlantic Ocean, North Atlantic Ocean in the tropics of the Western Hemisphere, located south of the Gulf of Mexico and southwest of the Sargasso Sea. It is bounded by the Greater Antilles to the north from Cuba ...

, to South America as far south as

Rio de Janeiro Rio de Janeiro, or simply Rio, is the capital of the Rio de Janeiro (state), state of Rio de Janeiro. It is the List of cities in Brazil by population, second-most-populous city in Brazil (after São Paulo) and the Largest cities in the America ...

. It can also be found at

Fernando de Noronha Fernando de Noronha (), officially the State District of Fernando de Noronha () and formerly known as the Federal Territory of Fernando de Noronha () until 1988, is an archipelago in the Atlantic Ocean, part of the state of Pernambuco, Brazil, and ...

and Atoll das Rocas. It is found at

Bermuda Bermuda is a British Overseas Territories, British Overseas Territory in the Atlantic Ocean, North Atlantic Ocean. The closest land outside the territory is in the American state of North Carolina, about to the west-northwest. Bermuda is an ...

where it was introduced.

Habitat and biology

''Anisotremus virginicus'' inhabits reefs and areas of rock substrate in shallow inshore waters at depths of . The juveniles are found in beds of sea grass. It is a nocturnal species which frequently moves around in large schools, occasionally swimming with

white grunt ''Haemulon plumierii'', the white grunt or common grunt, is a species of ray-finned fish in the family Haemulidae native to the western Atlantic Ocean. It grows to a length of about and is a silvery-cream color, with narrow yellow and blue longi ...

s. This species can produce a grunting sound, as can all the grunts, by grinding their teeth together. It feeds mainly on benthic invertebrates such as

molluscs Mollusca is a phylum of protostome, protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant taxon, extant species of molluscs are recognized, making it the second-largest animal phylum ...

crustaceans Crustaceans (from Latin meaning: "those with shells" or "crusted ones") are invertebrate animals that constitute one group of Arthropod, arthropods that are traditionally a part of the subphylum Crustacea (), a large, diverse group of mainly aquat ...

echinoderms An echinoderm () is any animal of the phylum Echinodermata (), which includes starfish, brittle stars, sea urchins, sand dollars and sea cucumbers, as well as the sessile sea lilies or "stone lilies". While bilaterally symmetrical as larv ...

polychaete Polychaeta () is a paraphyletic class of generally marine Annelid, annelid worms, common name, commonly called bristle worms or polychaetes (). Each body segment has a pair of fleshy protrusions called parapodia that bear many bristles, called c ...

s and

annelid The annelids (), also known as the segmented worms, are animals that comprise the phylum Annelida (; ). The phylum contains over 22,000 extant species, including ragworms, earthworms, and leeches. The species exist in and have adapted to vario ...

s. The juveniles act as

cleaner fish Cleaner fish are fish that show a specialist feeding strategy by providing a service to other species, referred to as clients, by removing dead skin, ectoparasites, and infected tissue from the surface or gill chambers. This example of cleaning ...

, picking

parasite Parasitism is a Symbiosis, close relationship between species, where one organism, the parasite, lives (at least some of the time) on or inside another organism, the Host (biology), host, causing it some harm, and is Adaptation, adapted str ...

s from the skin and scales of other species of fish.

Systematics

Anisotremus virginicus was first formally described in 1758 as ''Sparus virginicus'' by Linnaeus with the type locality given as South America. When the American

ichthyologist Ichthyology is the branch of zoology devoted to the study of fish, including bony fish (Osteichthyes), cartilaginous fish (Chondrichthyes), and jawless fish (Agnatha). According to FishBase, 35,800 species of fish had been described as of March 2 ...

Theodore Nicholas Gill Theodore Nicholas Gill (March 21, 1837 – September 25, 1914) was an American ichthyologist, mammalogist, malacologist, and librarian. Career Born and educated in New York City under private tutors, Gill early showed interest in natural histor ...

created the genus ''Anisotremus'' he named ''Sparus virginicus'' as its type species.

Utilisation

Anisotremus virginicus is of minor importance to commercial fisheries and is caught using a variety of methods. They are considered a good sports fishing quarry. They do appear in the aquarium trade. They have been bred in captivity.

References

External links

* {{Taxonbar, from=Q1733218 virginicus Fish of the Atlantic Ocean Fish described in 1758 Taxa named by Carl Linnaeus Fish of Aruba Marine fish of Nicaragua