| Sebastes polyspinis | |
|---|---|
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Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Scorpaeniformes |
| Family: | Scorpaenidae |
| Genus: | Sebastes |
| Species: | S. polyspinis |
| Binomial name | |
| Sebastes polyspinis | |
| Synonyms [1] | |
| |
Sebastes polyspinis, the Northern 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 northern Pacific Ocean.
Sebastes polyspinius was first formally described as Sebastodes polyspinis in 1933 by the Soviet biologists Anatoly Yakovlevich Taranetz and Peter Alekseevich Moiseev with the type locality given as the Pribilof Islands near Kamchatka in the Bering Sea. [2] The affinities of the Northern rockfish within the genus Sebastes are uncertain and it is classified as incertae sedis within that genus. The specific name polyspinis means "many spined" as with 14 spines in its dorsal fin it has more dorsal spines than its eastern Pacific congeners. [3]
Sebastes polyspinius has 14 spines in the dorsal fin and 3 in the anal fin. The spines on the head are very weak with only the nasal spines always present while the preocular, postocular and parietal spines are normally present while the supraocular, tympanic, coronal and nuchal spines are always absent. The intraorbital space bulges. [1] This species has a dark greyish-green body with reddish-orange on thelower body, they are marked with reddish-orange spots over the head and body. [4] This species attains a maximum total length of 41 cm (16 in). [1]
Sebastes polyspinis has one of the most northerly distribution of the Pacific species of Sebastes rockfishes. It ris found from the northern extermity of British Columbia around the northern Pacific to eastern Kamchatka and the northern Kurile Islands, extendinh north into the eastern Bering Sea. [5] This is a demersal fish which is found at depths down to 740 m (2,430 ft) on soft substrates. [1]
Sebastes polyspinis is a little known species, Like its congeners it is ovoviviparous and the larvae are born from April. In the Aleutian Islands females the mean number of oocytes is 89,320 oocytes with larger females bearing more eggs than smaller females. Half of the fish are sexually mature 7.6 years at 27.7 cm (10.9 in), younger than those in the Gulf of Alaska. [6] Northern rockfish feed mainly on krill with copepods, hermit crabs, and shrimp forming a minor components of their diet. [5]
Sebastes polyspinis is an impotrtant species for fisheres. It is caught mainly by trawling. [5]
The gopher rockfish, also known as the gopher sea perch, 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, primarily off California.
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.
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.
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.
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.
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.
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.
The black rockfish, also known variously as the black seaperch, black bass, black rock cod, sea bass, black snapper and Pacific Ocean perch, is a species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. It is sometimes misidentified as the "red snapper".
The brown rockfish, whose other names include brown seaperch, chocolate bass, brown bass and 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.
The redbanded rockfish, also known as the bandit, barber pole, flag rockfish, Spanish flag, Hollywood, convict, and canary, 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 northern Pacific Ocean.
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.
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.
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.
Sebastes glaucus, the gray rockfish or blue 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 deep waters of the Northwest Pacific.
Sebastes ovalis, the speckled 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 deep rocky areas of the Eastern Pacific.
Sebastes rosaceus, the rosy 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.
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.
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.
Sebastes melanostictus, the blackspotted 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 northern Pacific Ocean.
Sebastes ciliatus, the dusky rockfish, is a species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. It is typically found in the North Pacific Ocean, specifically in the Bering Sea near British Columbia, in the Gulf of Alaska, and in the depths of the Aleutian Islands.
Media related to Sebastes polyspinis at Wikimedia Commons
Data related to Sebastes polyspinis at Wikispecies