Spot | |
---|---|
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Actinopterygii |
Order: | Acanthuriformes |
Family: | Sciaenidae |
Genus: | Leiostomus |
Species: | L. xanthurus |
Binomial name | |
Leiostomus xanthurus Lacépède, 1802 | |
Spot range map |
The spot (Leiostomus xanthurus), also known commonly as the spot croaker, [1] Norfolk spot [2] and the Virginia spot, is a species of small short-lived saltwater fish in the family Sciaenidae. The species inhabits estuary and coastal waters from Massachusetts to Texas, and derives its name from the prominent dark spot behind each gill. It is the only species in the genus Leiostomus. Spot are frequently caught by recreational anglers and are good to eat.
The spot was first formally described in 1802 by the French naturalist Bernard Germain de Lacépède with its type locality given as Carolina. [3] Lacépède named this new species in a new monospecific genus, Leiostomus. [4] This genus has been placed in the subfamily Sciaeninae by some workers, [5] but the 5th edition of Fishes of the World does not recognise subfamilies within the Sciaenidae which it places in the order Acanthuriformes. [6]
The spot's generic name, Leiostomus means "smooth mouth" and refers to the toothless lower jaw. The specific name xanthurus means "yellow tail" and is a misnomer as the tail is not yellow, but it may have been coinfused for Bairdiella chrysoura . [7]
The spot is relatively deep-bodied and compressed with a humped back. [8] The mouth is almost horizontal and is equipped with bands of small teeth. There is no barbel on the chin but there are five pores there with more pores on the snout, five on the sides and five at the front. The upper angle of the operculum is incised and the edge of the preoperculum is smooth and not serrated. The dorsal fin is deeply incised, the incision separating the front, spiny part of the fin with 11 spines and the rear soft-rayed part which is supported by 29 to 35 soft rays. The anal fin contains two spines and 12 or 13 soft rays, the second spine being half the length of the first soft ray. The caudal fin is truncate, sometimes slightly notched. They have large ctenoid scales, except for those beneath the eye and on the lower head which are cycloid. A scale row, or two, runs along the base of the soft-rayed part of the dorsal fin. [9] This species reaches a maximum total length of 36 cm (14 in), although 25 cm (9.8 in) is more typical. [10] The color of the body is bluish-gray on the upper body becoming yellow or golden on the lower body. In young fishes there is a series of dark bars run diagonally from the back to the middle of the flanks, these fade as the fish ages. There is a large black spot on the body above the upper margin of the operculum. [8]
The spot is native to the west central and northwest regions on the Atlantic Ocean. It is found along the Gulf of Mexico, along the southern coast of the U.S from Massachusetts and down to Campeche, Mexico. It is typically found in depths no more than 6 meters, but can be found up to 50 meters in depth. The spot lives in salt waters, especially brackish waters, mostly over sandy and muddy seabeds. It lives in the estuaries and bays until spring, when it migrates to the deeper waters that it spawns in. During summer, it moves to water with a higher salinity, and then it moves offshore once autumn begins, and the water begins to cool. [1]
The spot is omnivorous, and eats benthic invertebrates, small crustaceans, and plant and animal detritus. This includes polychaetes, worms, small fish, small plankton, and mollusks. [1]
The spot is a very important fish for both recreational and commercial fishing. In 2021 the total landing of spot in the Southern Atlantic sector of US waters was 322 t (317 long tons; 355 short tons) with 71% of that coming from recreational fishermen and 29% from commercial fisheries. 64% of the commercial landings were in Virginia. [11]
The spot spawns in fall to early winter time. It moves from its typical bay and estuary habitat to an offshore area of deeper water, where up to 1.7 million eggs may be laid. The eggs are externally fertilized and pushed back toward shore. Larvae quickly grow in the warmer offshore water and move into coastal shallows and bays for winter. [11] [1]
Spot are protected and monitored under the Chesapeake Bay Atlantic Croaker and Spot Fishery Management Plan of 1991. The 1987 fishery management plan of the Atlantic States Marine Fisheries Commission was aimed mainly at reducing the numbers of juvenile fish taken as bycatch by shrimpers. [12]
At least one aquaculture project in New Jersey is attempting to culture spot for potential commercial production. [13]
The North Carolina Spot Festival is held at Hampstead, North Carolina, on the last weekend of September. [14]
Sciaenidae is a family of ray-finned fishes belonging to the order Acanthuriformes. They are commonly called drums or croakers in reference to the repetitive throbbing or drumming sounds they make. The family consists of about 293 to 298 species in about 66 or 67 genera.
The black sea bass is a species of marine ray-finned fish, a sea bass from the subfamily Serraninae which is part of the family Serranidae, which also includes the groupers and anthias. It is found in the western Atlantic Ocean, where it is an important species for commercial and recreational fisheries.
Spotted seatrout, also known as speckled trout, is a common estuarine fish found in the southern United States along coasts of Gulf of Mexico and the coastal Atlantic Ocean from Maryland to Florida. While most of these fish are caught on shallow, grassy flats, spotted seatrout reside in virtually any inshore waters, from the surf of outside islands to far up coastal rivers, where they often come for shelter during cold weather. Contrary to its name, the spotted seatrout is not a member of the trout family (Salmonidae), but of the drum family (Sciaenidae). It is popular for commercial and especially recreational fishing in coastal waters of the southeastern United States. Adults reach 19–37 inches in length and 3–17 pounds in weight.
Cynoscion acoupa, the acoupa weakfish, blacktail basher or grey snapper, is a species of marine ray-finned fish belonging to the family Sciaenidae, the drums and croakers. This fish is found in the western Atlantic.
Micropogonias is a genus of marine ray-finned fishes belonging to the family Sciaenidae, the drums and croakers. These fishes are found in the eastern Pacific and western Atlantic Oceans.
The Atlantic croaker is a species of marine ray-finned fish belonging to the family Sciaenidae and is closely related to the black drum, the silver perch, the spot croaker, the red drum, the spotted seatrout, and the weakfish. It is commonly found in sounds and estuaries from Massachusetts to the Gulf of Mexico.
Pogonias is a genus of ray-finned fish in the family Sciaenidae. It was formerly believed to be a monotypic genus only containing the black drum, but a second species was re-described in 2019.
The speckled hind, also known as the calico grouper, kitty mitchell or strawberry grouper, is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It is found in Bermuda and off the eastern coast of North America. Its natural habitats are open seas, shallow seas, y aquatic beds, and coral reefs. The species, like many other types of marine life in the region, is threatened by habitat loss.
The striped croaker, also known as the St Lucian corvina, is a species of marine ray-finned fish belonging to the family Sciaenidae, the drums and croakers. This species is found in the western Atlantic Ocean in the Caribbean Sea and Gulf of Mexico.
Larimichthys crocea, commonly called the large yellow croaker, yellow croaker or croceine croaker, is a species of marine ray-finned fish belonging to the family Sciaenidae, the drums and croakers. This species is found in the Western Pacific Ocean.
Cynoscion arenarius, sand seatrout, sand weakfish or white trout, is a species of marine ray-finned fish belonging to the family Sciaenidae, the drums and croakers. It is found in the western Atlantic Ocean. It is closely related to the common weakfish and may be a subspecies of C. regalis.
Bairdiella is a genus of marine ray-finned fishes belonging to the family Sciaenidae, the drums and croakers. These fishes are found in the western Atlantic and eastern Pacific Ocean.
Argyrosomus inodorus, the mild meagre or silver kob, is a species of marine ray-finned fish belonging to the family Sciaenidae, the drums and croakers. The species is found off southern Africa where it is an important target species for hook and line fisheries.
Odontoscion dentex, the reef croaker or brown large-eyed croaker, is a species of marine ray-finned fish belonging to the family Sciaenidae, the drums and croakers. It is found in coral and rocky reefs of the tropical Western Atlantic, living as solitary individuals or in small groups at a depth of 1 to 30 m. This species feeds on small fish, shrimp, and larvae.
Argyrosomus hololepidotus, also known as the Madagascar meagre or southern meagre, is a species of marine ray-finned fish belonging to the family Sciaenidae, the drums and croakers. The species is endemic to Madagascar and the Indian Ocean.
The geelbeck croaker, also known as the African weakfish or Cape salmon, is a species of marine ray-finned fish belonging to the family Sciaenidae, the drums and croakers. This species is found in the southwestern Indian Ocean off southeastern Africa.
Atractoscion atelodus, the small lunate caudal fin croaker, teraglin, Jew, teraglin-Jew, trag or trag-Jew, is a species of marine ray-finned fish belonging to the family Sciaenidae, the drums and croakers. This species is endemic to the eastern coast of Australia.
Cheilotrema is a genus of marine ray-finned fishes belonging to the family Sciaenidae, the drums and croakers. These fishes are found in the eastern Pacific Ocean.
Johnius dussumieri, the sin croaker, Dussumier's croaker, Dussumier's silver jewfish, sharptooth hammer croaker or whiskered croaker, is a marine ray-finned fish belonging to the family Sciaenidae, the drums and croakers. This fish is found in the Indian Ocean.
Micropogonias furnieri, the whitemouth croaker, golden croaker, hardhead, mangrove snapper, rocandoronco, two-belly bashaw, West Indian croaker, West Indian drum or whitemouth drummer, is a species of marine ray-finned fish belonging to the family Sciaenidae, the drums and croakers. This fish is found in the western Atlantic Ocean.