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Sebastes melanostomus

(Rocky Mountain Whitefish)

Overview

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Red rockfishes with strong head spines.

Interesting Facts

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Common Names

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Click on the language to view common names.

Common Names in English:

blackgill rockfish, Blackmouth rockfish, Deepsea rockfish, rockfish, Rocky Mountain Whitefish

Common Names in Mandarin Chinese:

黑口平鮋, 黑口平鲉

Common Names in Spanish:

Rocote agalla negra

Description

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Physical Description

Species Sebastes melanostomus

Body color: Uniform dark red, including fins ; dusky bars may be present on back, these prominent in young specimens; most fins w/ blackened tips . Maximum length : 24 in (61 cm) Peritoneum color: black Shape between eyes: flat to convex . Counts: D:XIII,12-15, Ar:6-8, P1 :17-20, GR:27-34,LLp:28-34, LLs:32-34, V:26

Habitat

Found on soft bottom in deep water , but young in shallower areas [1]. Juveniles are pelagic[2]. Common depth: 137-328 fm (250-600 m ). Maximum depth: 420 fm (768 m).

Typically found in water with a depth of 0 to -4,476 meters (0 to -14,685 feet).[3]

Biome: Marine .

Biology

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Reproduction

Viviparous, with planktonic larvae[2].

Taxonomy

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Synonyms

Sebastes melanostomusSebastodes melanostomusSebastodes melanostomus Eigenmann & Eigenmann, 1890 • Sebastodes melanostomus Eigenmann & Eigenmann

Notes

Name Status: Accepted Name .

Last scrutiny: Data last modified by FishBase 08-Jul-1994

Similar Species

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Shortraker RF - body pink or orange-pink; mouth, branchiostegal membranes, and gill cavity red to red-black; peritoneum light w/ black spots; gillrakers 27-31 (typically 30-34 in Blackgill RF).

Rougheye RF - 2-10 spines below eye; mouth, branchiostegal membranes, and gill cavity red to red-black; peritoneum light.

Pacific Ocean Perch - head spines weak and differ in count; dark blotches discrete at dorsal base; symphyseal knob prominent.

Sharpchin RF - symphyseal knob prominent; discrete blotches w/ at least one crossing lateral line; head spines differ in count; anal spine 2 longer than 3.

Members of the genus Sebastes

ZipcodeZoo has pages for 100 species and subspecies in this genus:

S. aleutianus (Rougheye Rockfish) · S. alutus (Pacific Ocean Perch) · S. atrorubens (Roundhead Rockfish) · S. atrovirens (Kelp Rockfish) · S. auriculatus (Brown Rockfish) · S. aurora (Aurora Rockfish) · S. babcocki (Redbanded Rockfish) · S. bibroni (Silvergray Rockfish) · S. borealis (Black-Throated Rock-Fish) · S. brevispinis (Silvergray Rockfish) · S. capensis (Cape Scorpionfish) · S. carnatus (Gopher Rockfish) · S. caurinus (Copper Rockfish) · S. chlorostictus (Greenspotted Rockfish) · S. chrysomelas (Black- And- Yellow Rockfish) · S. ciliatus (Light Dusky Rockfish) · S. constellatus (Starry Rockfish) · S. cortezi (Cortez Rockfish) · S. crameri (Blackblotched Rockfish) · S. dalli (Calico Rockfish) · S. dallii (Calico Rockfish) · S. diploproa (Lobe-Jawed Rockfish) · S. elongatus (Greenstriped Rockfish) · S. emphaeus (Puget Sound Rockfish) · S. ensifer (Swordspine Rockfish) · S. entomelas (Rocky Mountain Whitefish) · S. eos (Pink Rockfish) · S. exsul (Buccaneer Rockfish) · S. faciatus (Acadian Rockfish) · S. fasciatus (Labrador Redfish) · S. flavidus (Yellowtail Rockfish) · S. gilli (Bronzespotted Rockfish) · S. glaucus (Blue Rockfish) · S. goodei (Chilipepper Rockfish) · S. helvomaculatus (Rosethorn Rockfish) · S. hopkinsi (Squarespot Rockfish) · S. inermis (Dark-Banded Rockfish) · S. jordani (Shortbelly Rockfish) · S. lentiginosus (Freckled Rock-Cod) · S. levis (Cow Rockfish) · S. macdonaldi (Mexican Rockfish) · S. macrocephalus (Large-Headed Scorpionfish) · S. macrochir (Short-Spined Thorny-Head) · S. maliger (Orange-Spotted Rock-Fish) · S. marinus (Bream) · S. marinus marinus (Bream) · S. marmoratus (Marbled Rockfish) · S. melanops (Black Rockfish) · S. melanosema (Semaphore Rockfish) · S. melanostomus (Rocky Mountain Whitefish) · S. mentella (Deep Water Redfish) · S. miniatus (Vermillion Rockfish) · S. moseri (Whitespeckled Rockfish) · S. mystinus (Blue Rockfish) · S. nebulosus (Yellowstripe Rockfish) · S. nematophthalmus (Spinythroat Scorpionfish) · S. nigrocinctus (Black-Banded Rockfish) · S. nigropunctatus (St. Helena Deepwater Scorpionfish) · S. norvegicus (Golden Redfish) · S. notius (Guadalupe Rockfish) · S. oculata (Blackbelly Rosefish) · S. oculatus (Blackbelly Rosefish) · S. ovalis (Speckled Rockfish) · S. pachycephalus (Chmidt) · S. paucispinis (Boccacio Rockfish) · S. paucispinus (Boccacio Rockfish) · S. peduncularis (Gulf Rockfish) · S. percoides (Red Gurnard Scorpionfish) · S. phillipsi (Chameleon Rockfish) · S. pinniger (Orange Rockfish) · S. polyspinis (Northern Rockfish) · S. proriger (Redstripe Rockfish) · S. rastrelliger (Grass Rockfish) · S. reedi (Yellowmouth Rockfish) · S. rosaceus (Rosy Rockfish) · S. rosenblatti (Greenblotched Rockfish) · S. ruberrimus (Turkey-Red Rockfish) · S. rubrivinctus (Flag Rockfish) · S. rufinanus (Dwarf- Red Rockfish) · S. rufus (Bank Rockfish) · S. saxicola (Olive-Backed Rockfish) · S. scaber (Pygmy Scorpionfish) · S. schlegelii (Schlegel's Black Rockfish) · S. semicinctus (Halfbanded Rockfish) · S. serranoides (Olive Rockfish) · S. serriceps (Treefish) · S. serrulatus (Pygmy Lionfish) · S. simulator (Pinkrose Rockfish) · S. sinensis (Blackmouth Rockfish) · S. spinorbis (Spinyeye Rockfish) · S. thetidis (Rough Gurnard Perch) · S. thompsoni (Goldeye Rockfish) · S. umbrosus (Honeycomb Rock-Cod) · S. variabilis (Dusky Rockfish) · S. variegatus (Harlequin Rockfish) · S. varispinis (Hidden Rockfish) · S. viviparus (Lesser Redfish) · S. vulpes (Fox Jacopever) · S. wilsoni (Wilson´s Rock-Fish) · S. zacentrus (Sharpchin Rockfish)

More Info

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Further Reading

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Notes

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Contributors

Data Sources

Accessed through GBIF Data Portal February 29, 2008:

Identifiers

Footnotes

  1. Eschmeyer, W.N., E.S. Herald and H. Hammann (1983). A field guide to Pacific coast fishes of North America. Houghton Mifflin Company, Boston, U.S.A. 336 p. [back]
  2. Moser, H.G. (1996). Scorpaenidae: scorpionfishes and rockfishes. p. 733-795. In H.G. Moser (ed.) The early stages of fishes in the California Current region. California Cooperative Oceanic Fisheries Investigations (CalCOFI) Atlas No. 33. 1505 p. [back]
  3. Mean = -1,320.570 meters (-4,332.579 feet), Standard Deviation = 1,361.220 based on 21 observations. Ocean depth information for each observation from British Oceanographic Data Centre. [back]
Last Revised: 7/15/2012