The Acadian redfish (''Sebastes fasciatus''), also known as the Atlantic redfish, Acadian rockfish, or Labrador redfish, 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 ...

belonging to the subfamily

Sebastinae Sebastinae is a subfamily of marine fish belonging to the Family (biology), family Scorpaenidae in the Order (biology), order Scorpaeniformes. Their common names include rockfishes, rock perches, ocean perches, sea perches, thornyheads, scorpion ...

, the rockfishes, part of 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 ...

Scorpaenidae The Scorpaenidae (also known as scorpionfish) are a family (biology), family of mostly ocean, marine fish that includes many of the world's most venomous species. As their name suggests, scorpionfish have a type of "sting" in the form of sharp ...

. It is native to the deep waters of the northwestern Atlantic.

Taxonomy

The Acadian redfish was first formally described in 1854 by the American

physician A physician, medical practitioner (British English), medical doctor, or simply doctor is a health professional who practices medicine, which is concerned with promoting, maintaining or restoring health through the Medical education, study, Med ...

and

zoologist Zoology ( , ) is the scientific study of animals. Its studies include the structure, embryology, classification, habits, and distribution of all animals, both living and extinct, and how they interact with their ecosystems. Zoology is one ...

David Humphreys Storer David Humphreys Storer (March 26, 1804 – September 10, 1891) was an American physician and naturalist. He served as dean of the Faculty of Medicine at Harvard Medical School from 1855 to 1864. He identified numerous fish species and published ...

with the type locality given as the harbor at

Provincetown, Massachusetts Provincetown () is a New England town located at the extreme tip of Cape Cod in Barnstable County, Massachusetts, in the United States. A small coastal resort town with a year-round population of 3,664 as of the 2020 United States census, Provi ...

. The Acadian redfish has been known to hybridise with the beaked redfish (''S. mentella''). This species is classified within the

subgenus In biology, a subgenus ( subgenera) is a taxonomic rank directly below genus. In the International Code of Zoological Nomenclature, a subgeneric name can be used independently or included in a species name, in parentheses, placed between the ge ...

''Sebastes'' by some authorities. The

specific name Specific name may refer to: * in Database management systems, a system-assigned name that is unique within a particular database In taxonomy, either of these two meanings, each with its own set of rules: * Specific name (botany), the two-part (bino ...

''fasciatus'' means "banded", an allusion to the four clear bands on the flanks.

Description

The Acadian redfish is colored reddish-orange and can live up to 50 years or more and reach lengths up to .Acadian redfish
, Maine Dept. of Marine Resources. It is very similar in appearance to the deepwater redfish ('' S. mentella''). The two species can be distinguished by the number of soft rays in the anal fin, internal examination of the gas bladder, or by

genetic testing Genetic testing, also known as DNA testing, is used to identify changes in DNA sequence or chromosome structure. Genetic testing can also include measuring the results of genetic changes, such as RNA analysis as an output of gene expression, or ...

Distribution and habitat

The Acadian redfish is native to the waters of the northwestern Atlantic Ocean and its range extends from Virginia, the Gulf of St. Lawrence, Nova Scotia, western Greenland and Iceland. It is found at depths varying between . It swims near the seabed in areas with clay-silt or rocky bottoms.

Biology

The Acadian redfish feeds on a variety of crustaceans, mollusks, and smaller fish. It spawns in the fall to late winter. The species is

ovoviviparous Ovoviviparity, ovovivipary, ovivipary, or aplacental viviparity is a "bridging" form of reproduction between egg-laying oviparity, oviparous and live-bearing viviparity, viviparous reproduction. Ovoviviparous animals possess embryos that develo ...

, and females release 15,000–20,000 fully formed larvae into the water per season.Ralph K. Mayo, Jon K. T. Brodziak, John M. Burnett, Michele L. Traver, and Laurel A. Col,
The 2005 Assessment of Acadian Redfish, ''Sebastes fasciatus'' Storer, in the Gulf of Maine/Georges Bank Region
," Northeast Fisheries Science Center Reference Document 07-06, National Oceanic and Atmospheric Administration, U.S. Department of Commerce (April, 2007). The Acadian redfish is preyed on by the

halibut Halibut is the common name for three species of flatfish in the family of right-eye flounders. In some regions, and less commonly, other species of large flatfish are also referred to as halibut. The word is derived from ''haly'' (holy) and ...

, the

Atlantic cod The Atlantic cod (: cod; ''Gadus morhua'') is a fish of the family Gadidae, widely consumed by humans. It is also commercially known as '' cod'' or ''codling''.swordfish The swordfish (''Xiphias gladius''), also known as the broadbill in some countries, are large, highly migratory predatory fish characterized by a long, flat, pointed bill. They are the sole member of the Family (biology), family Xiphiidae. They ...

es and

harbor seal The harbor (or harbour) seal (''Phoca vitulina''), also known as the common seal, is a true seal found along temperate and Arctic marine coastlines of the Northern Hemisphere. The most widely distributed species of pinniped (walruses, eared sea ...

Conservation

Due to its slow growth rate, low fecundity, harmless nature, tendency to "hit almost any bait", and being considered a great food fish, the Acadian redfish was classified as

Endangered An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching, inv ...

by the

IUCN The International Union for Conservation of Nature (IUCN) is an international organization working in the field of nature conservation and sustainable use of natural resources. Founded in 1948, IUCN has become the global authority on the status ...

in 1996. However, due to conservation efforts, the redfish population has rebounded, and in 2012 the species was described as fully rebuilt, sustainably managed and responsibly harvested under U.S. regulations.NOAA - FishWatch: Acadian Redfish
, Retrieved 20 February 2013.

References

{{Taxonbar, from=Q2244964 Sebastes Fish described in 1854 Taxa named by David Humphreys Storer Fish of the Atlantic Ocean