# Gopher rockfish

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{{Short description|Species of fish}}
{{Speciesbox
| image = Gopher rockfish.jpg
| image_caption = At the Monterey Bay Aquarium
| taxon = Sebastes carnatus
| authority = ([D. S. Jordan](/source/David_Starr_Jordan) & [C. H. Gilbert](/source/Charles_Henry_Gilbert), 1880)
| synonyms = * ''Sebastichthys carnatus'' <small>Jordan & Gilbert, 1880</small>
| synonyms_ref = <ref name = Fishbase>{{Fishbase|Sebastes|carnatus|month=June|year=2021}}</ref>
}}
thumb|A gopher rockfish resting on top of rocks
The '''gopher rockfish''' ('''''Sebastes carnatus'''''), also known as the '''gopher sea perch''', is a [species](/source/species) of marine [ray-finned fish](/source/ray-finned_fish) belonging to the subfamily [Sebastinae](/source/Sebastinae), the rockfishes, part of the [family](/source/Family_(taxonomy)) [Scorpaenidae](/source/Scorpaenidae). It is found in the eastern [Pacific](/source/Pacific_Ocean), primarily off [California](/source/California).

==Taxonomy==
The gopher rockfish was originally [described](/source/Species_description) in 1880 as ''Sebastichthys carnatus'' by the American [ichthyologists](/source/Ichthyology) [David Starr Jordan](/source/David_Starr_Jordan) and [Charles Henry Gilbert](/source/Charles_Henry_Gilbert) with the [type locality](/source/Type_(biology)) given as the [Monterey Bay, California](/source/Monterey_Bay%2C_California).<ref name = Coff>{{Cof genus | genus = Sebastes | access-date = 5 November 2021}}</ref> Some authorities place this species in the [subgenus](/source/subgenus) ''Pteropodus''. The [specific name](/source/Specific_name_(zoology)) ''carnatus'' means "fleshy" or "flesh-colored", alluding to the background color of this fish.<ref name = ETYFish>{{cite web | url = https://etyfish.org/perciformes8/ | title = Order Perciformes (Part 8): Suborder Scorpaenoidei: Families Sebastidae, Setarchidae and Neosebastidae | work = The ETYFish Project Fish Name Etymology Database | editor1= Christopher Scharpf | editor2 = Kenneth J. Lazara | name-list-style = amp |date = 22 May 2021 | access-date = 5 November 2021 | publisher = Christopher Scharpf and Kenneth J. Lazara}}</ref>

==Description==
The gopher rockfish is a deep, stout bodied fish with a steep dorsal profile.<ref name = cpf>{{cite web | url = https://www.pierfishing.com/gopher-rockfish/ | title = Gopher Rockfish | date = 26 April 2018 | access-date = 5 November 2021 | publisher = California Pier Fishing}}</ref> The body is as deep as 34% to 38% of its [standard length](/source/standard_length). They have many spines on the head and body. The overall color is dark brown, black, and greenish fading to reddish brown on the belly.<ref name = MF>{{cite web | url = https://mexican-fish.com/gopher-rockfish/ | title = Gopher rockfish | date = 18 January 2015 | access-date = 5 November 2021 | publisher = Mexican Fish}}</ref> There is a row of flesh-colored or whitish spotting and blotches<ref name = cpf/> on their back reaching up to and onto the [dorsal fin](/source/dorsal_fin) and irregular pale patches on their flanks. There is a dark stripe running rearwards from the eye and another on the upper jaw. The head is of average length for this genus and has a short snout with a small terminal mouth and large eyes which bulge over the dorsal profile of the head. The [caudal fin](/source/caudal_fin) is truncate.<ref name = MF/> The dorsal fin has 13 spines and 12 to 14 rays while the [anal fin](/source/anal_fin) has 3 spines and 5 to 7 soft rays. This species grows to a maximum [total length](/source/total_length) of {{cvt|43|cm}} and {{Convert|2.83|kg|lb|abbr=on}}.<ref name="cpf" />

==Distribution and habitat==
Gopher rockfish are found in the northeastern Pacific Ocean off the Western coast of North America. They are known from as far north as [Cape Blanco](/source/Cape_Blanco_(Oregon)) in [Oregon](/source/Oregon), down to [Ensenada](/source/Ensenada%2C_Baja_California) in southern [Baja California](/source/Baja_California). They are commonest between Northern Baja California and [Northern California](/source/Northern_California).<ref name = cpf/> It is a [demersal](/source/Demersal_fish) species that is encountered as solitary and highly territorial individuals with nearby shelters on rock structures or within [kelp forest](/source/kelp_forest)s at depths from {{cvt|12|to|50|m}}.<ref name = MF/> 

==Biology and diet==
The gopher rockfish is a [territorial](/source/Territory_(animal)) species which defends a home territory on the seabed excluding other rockfish. It is a [nocturnal](/source/Nocturnality) fish, spending the day sheltering in cavities and crevices. They leave their shelter at dusk to forage. The juveniles feed on planktonic crustaceans while the adults prey on [cephalopod](/source/cephalopod)s, [gastropod](/source/Gastropoda)s, [brittle star](/source/brittle_star)s, [crabs](/source/Crab) (notably the [Cancrinae](/source/Cancridae) family), [shrimp](/source/shrimp) and [polychaete worm](/source/polychaete)s. They also eat smaller fish such as juvenile rockfish, particularly [blue rockfish](/source/blue_rockfish) (''Sebastes mystinus''), [sculpin](/source/sculpin)s, juvenile [surfperch](/source/surfperch), [kelpfishes](/source/Chironemus), and [plainfin midshipman](/source/Porichthys_notatus) (''Porichthys notatus'').<ref name = cpf/><ref name=":0">{{Cite journal |last=Schaaf-Da Silva |first=Jayna A. |date=2009 |title=Gopher Rockfish Status 2006 |url=https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=34406 |journal=Status of the Fisheries Report |pages= |via=CA.gov}}</ref>
[[File:Drawn comparison between the Copper Rockfish (Sebastes caurinus) and the Gopher Rockfish (Sebastes carnatus).jpg|thumb|297x297px|Comparison with the similar [Copper Rockfish](/source/Copper_rockfish) (''Sebastes caurinus''). Notably, the posterior of the copper rockfish's [lateral line](/source/lateral_line) is often lighter in color compared to the blotchy pattern on the gopher rockfish.]]Like other rockfish, it is a [viviparous](/source/Viviparity) species. spawning happens from January through July, and they give birth to live young after [gestation](/source/gestation). Compared to other [rockfish](/source/Sebastes), gophers mature quicker, at 3-4 years of age, but the rate of maturity depends on the region. Males mature and grow faster than females.<ref name=":0" /><ref name="cpf" />
They are known to live for up to 30 years, possibly to 35, but it is rare for the fish to be older than 20.<ref name="MF" /><ref name=":0" />

== Fisheries and relation to humans ==
Gopher rockfish are considered of moderate importance to [commercial fisheries](/source/Commercial_fishing). They are mainly caught by recreational anglers fishing from shore for other [https://wildlife.ca.gov/Conservation/Marine/Groundfish/Nearshore-Shelf-And-Slope near-shore rockfishes], and can be a relatively common catch, including from boats and kayaks.<ref name="cpf" /><ref name=":0" /> Larger fish are found in deeper waters.<ref name="cpf" /> They are considered good eating fish, and may be sold live or frozen.

==Genetics==
A [PCR-RFLP](/source/Restriction_fragment_length_polymorphism) genetic sex marker has been identified for gopher rockfish, which can successfully distinguish males and females.<ref name="Fowler 2016">{{cite journal |doi=10.1111/mec.13594 |title=Genomic characterization of sex‐identification markers in ''Sebastes carnatus'' and ''Sebastes chrysomelas'' rockfishes |journal=Molecular Ecology |volume=25 |issue=10 |pages=2165–2175 |year=2016 |last1=Fowler|first1=Benjamin L.S. |last2=Buonaccorsi|first2=Vincent P. |pmid=26923740 |doi-access=free }}</ref><ref name="Vaux 2020">{{cite journal |doi=10.1007/s12686-020-01150-y |title=Sex identification PCR–RFLP assay tested in eight species of ''Sebastes'' rockfish |journal=Conservation Genetics Resources |volume=12 |pages=541–544 |year=2020 |last1=Vaux|first1=Felix |last2=Aycock|first2=Hannah M. |last3=Bohn|first3=Sandra |last4=Rasmuson|first4=Leif K.|last5=O'Malley|first5=Kathleen G.|issue=4 |s2cid=216609309 }}</ref> The marker potentially also works in the closely related [black-and-yellow rockfish](/source/black-and-yellow_rockfish),<ref name="Fowler 2016" /><ref name="Vaux 2020" /> but it does not seem to successfully distinguish males and females in various other rockfish species.<ref name="Vaux 2020" /> Chromosome 19 has been identified as a putative sex chromosome for the species.<ref name="Sykes 2023">{{cite journal |doi=10.1111/mec.17090 | pmc=|title=Rapid turnover and evolution of sex-determining regions in Sebastes rockfishes |journal=Molecular Ecology |volume=32 |issue=18 |pages=5013-5027|year=2023|last1=Sykes|first1=Nathan T.B. |last2=Kolora|first2=Sree Rohit Raj |last3=Sudmant|first3=Peter H. |last4=Owens|first4=Gregory L. |pmid= |doi-access=free}}</ref>

==References==
{{Reflist}}
* {{ITIS |id=166767 |taxon=Sebastes carnatus |access-date=11 March 2006}}
* Milton S. Love, Mary Yoklavich, Lyman K. Thorsteinson, (2002), ''The Rockfishes of the Northeast Pacific'', University of California Press, pp.&nbsp;140&ndash;143
{{Commons}}
* Shawn Narum, Vincent Buonaccorsi, Carol Kimbrell, and Russell Vetter.  (2004). Genetic Divergence between Gopher Rockfish (''Sebastes carnatus'') and Black and Yellow Rockfish (''Sebastes chrysomelas'').  ''Copeia'', 4, pp.&nbsp;926–931.

{{Sebastidae}}
{{Taxonbar|from=Q2717740}}

gopher rockfish
Category:Taxa named by David Starr Jordan
Category:Taxa named by Charles Henry Gilbert
Category:Fauna of California
Category:Western North American coastal fauna
gopher rockfish

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Adapted from the Wikipedia article [Gopher rockfish](https://en.wikipedia.org/wiki/Gopher_rockfish) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Gopher_rockfish?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.
