Sebastes aurora

Last updated

Sebastes aurora
Sebastes aurora noaa.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Scorpaeniformes
Family: Scorpaenidae
Genus: Sebastes
Species:
S. aurora
Binomial name
Sebastes aurora
(Gilbert, 1890)
Synonyms [1]
  • Sebastichthys auroraGilbert, 1890
  • Sebastodes aurora(Gilbert, 1890)

Sebastes aurora, the aurora rockfish, is a species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. It is found in the northeastern Pacific Ocean.

Contents

Taxonomy

Sebastes aurora was first formally described as Sebastichthys aurora in 1890 by the American ichthyologist Charles Henry Gilbert with the type locality given as Santa Barbara Islands in California. [2] Some authorities place this species in the subgenus Eosebastes. The specific name aurora means "dawn" or "sunrise" thought to be an allusion to the uniform red colour of the body, although it is paler on the lower body. [3]

Description

Sebastes aurora has a deep rhombus-shaped body which is 36% to 40% as deep as its standard length and is covered in scales. [4] There are 13 spines and 12-14 soft rays in the dorsal fin. The anal fin contains 3 spines, the second spine being rather long, and 5-6 soft rays. There are robust spines on the head, these are nasal, preocular, supraocular, postocular, tympanic, parietal and nuchal spines but typically there are no coronal spines. There are small lobes protruding from the front part of the upper jaw. [1] The caudal fin is truncate or concave. [4] On capture the overall colour is rose-red to pale pink, but while they are underwater the overall colour is white broken by pale pink to red saddles and blotches on the back with silvery flanks and belly. [5] The aurora rockfish reaches a maximum total length of 41 cm (16 in). [1]

Distribution and habitat

Sebastes aurora is found in the northeastern Pacific Ocean along the western coast of North America from Amphitrite Point on Vancouver Island in British Columbia to Cedros Island in Baja California. [1] This species is a demersal fish occurring over both soft and hard substrates at depths from 82 to 762 m (269 to 2,500 ft). [4] In 2009 a specimen was collected in Alaskan waters in the Gulf of Alaska, a northward range extension of 225 km (140 mi). [6]

Biology

Sebastes aurora prey on fish, krill, octopus and a diversity of other small marine organisms. [4] This is a long-lived species which has been estimated to have a lifespan of up to 125 years. The estimated length and age at which 50% of the fish are sexually mature is 25.5 cm (10.0 in) and 12.56 years. The peak time for parturition is in May. [7] It is a viviparous species and the larvae are planktonic while the juveniles are pelagic. [1]

Fisheries

Sebastes aurora is a minor component of commercial fisheries in southern California where most are taken using gill nets with a small amount caught annually by recreational anglers. The flesh is considered to be highly palatable. [4]

Related Research Articles

<span class="mw-page-title-main">China rockfish</span> Species of fish

The China rockfish, the yellowstripe rockfish or yellowspotted rockfish, is a species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. It is native to the waters of the Pacific Ocean off western North America.

<i>Sebastes capensis</i> Species of fish

Sebastes capensis, the false jacopever or Cape redfish, is a species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. It is found in the South Atlantic Ocean and may also occur off southern and western South America.

<span class="mw-page-title-main">Shortraker rockfish</span> Species of fish

The shortraker rockfish is an offshore, demersal species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. It is found in the northern Pacific Ocean.

<i>Sebastes levis</i> Species of fish

Sebastes levis, the cowcod or cow rockfish, is a species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. It is found in the eastern Pacific Ocean.

<span class="mw-page-title-main">Tiger rockfish</span> Species of fish

The tiger rockfish, also called tiger seaperch, banded rockfish and black-banded rockfish, is a species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. It is native to the waters of the Pacific Ocean off western North America.

<span class="mw-page-title-main">Widow rockfish</span> Species of fish

The widow rockfish, or brown bomber, is a species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. It is found in the northeastern Pacific Ocean.

<i>Sebastes miniatus</i> Species of fish

Sebastes miniatus, the vermilion rockfish, vermilion seaperch, red snapper, red rock cod, and rasher, is a species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. It is native to the waters of the Pacific Ocean off western North America from Baja California to Alaska.

<span class="mw-page-title-main">Yellowtail rockfish</span> Species of fish

The yellowtail rockfish, or yellowtail seaperch, is a species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. This species lives mainly off the coast of western North America from California to Alaska.

<span class="mw-page-title-main">Pygmy rockfish</span> Species of fish

The pygmy rockfish, also known as the slender rockfish or Wilson's rockfish, is a species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. It is found in the eastern Pacific Ocean.

<i>Sebastes rufinanus</i> Species of fish

Sebastes rufinanus, the dwarf-red rockfish, is a species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. It is found in the Eastern Pacific, in tock habitats off islands in southern California.

<i>Sebastes chlorostictus</i> Species of fish

Sebastes chlorostictus, the greenspotted rockfish, is a species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. It is found in the Eastern Pacific.

<i>Sebastes diploproa</i> Species of fish

Sebastes diploproa, the splitnose rockfish, is a species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. It is found in the northeastern Pacific Ocean.

<i>Sebastes ensifer</i> Species of fish

Sebastes ensifer, the swordspine rockfish, is a species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. It is found in the northeastern Pacific Ocean.

<i>Sebastes elongatus</i> Species of fish

Sebastes elongatus, the greenstriped rockfish, striped rockfish, strawberry rockfish, poinsettas, reina or serena, is a species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. It is found in the northeastern Pacific Ocean.

<i>Sebastes helvomaculatus</i> Species of fish

Sebastes helvomaculatus, the rosethorn rockfish, is a species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. This species is found in the Eastern Pacific.

<i>Sebastes hopkinsi</i> Species of fish

Sebastes hopkinsi, the squarespot rockfish, is a species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. This species is found in the Eastern Pacific.

<i>Sebastes rastrelliger</i> Species of fish

Sebastes rastrelliger, the grass rockfish, is a species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. It is native to the waters of the eastern Pacific Ocean.

<i>Sebastes rubrivinctus</i> Species of fish

Sebastes rubrivinctus, also known as the flag rockfish, Spanish flag, redbanded rockfish or barberpole, is a species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. It is found in the Eastern Pacific.

<i>Sebastes semicinctus</i> Species of fish

Sebastes semicinctus, the halfbanded rockfish, is a species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. It is found in the Eastern Pacific.

<span class="mw-page-title-main">Darkblotched rockfish</span> Species of fish

The darkblotched rockfish is a species of marine ray-finned fish, a rockfish belonging to the subfamily Sebastinae of the scorpionfish family Scorpaenidae. This is a deepwater species of the North Pacific Ocean.

References

  1. 1 2 3 4 5 Froese, Rainer; Pauly, Daniel (eds.) (2021). "Sebastes aurora" in FishBase. June 2021 version.
  2. Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Sebastes". Catalog of Fishes . California Academy of Sciences . Retrieved 4 November 2021.
  3. Christopher Scharpf & Kenneth J. Lazara, eds. (22 May 2021). "Order Perciformes (Part 8): Suborder Scorpaenoidei: Families Sebastidae, Setarchidae and Neosebastidae". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 4 November 2021.
  4. 1 2 3 4 5 "Aurora Rockfish". Mexican Fish. Retrieved 4 November 2021.
  5. "Aurora Rockfish (Sebastes aurora)". Washington Department of Fish and Wildlife. Retrieved 3 November 2021.
  6. Edward A. Laman; James W. Orr (2011). "First record of an aurora rockfish Sebastes aurora from Alaskan waters". Northwestern Naturalist. 92 (3): 230–232.
  7. Head, Melissa; Cope, Jason & Wulfing, Sophie (2020). "Applying a flexible spline model to estimate functional maturity and spatio-temporal variability in aurora rockfish (Sebastes aurora)". Environmental Biology of Fishes. 103. doi:10.1007/s10641-020-01014-2.