Tag Archive: rockfishes


TAXONOMY
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii (ray-finned fishes)

Order: Scorpaeniformes (Scorpionfishes and flatheads)
Family: Sebastidae (Rockfishes, rockcods and thornyheads)

Genus/species:  Sebastes mystinus

GENERAL CHARACTERISTICS
Mottled blue-black to bright blue with two to four dark bands which curve around the front of the head. Sloping band from the eye toward the pectoral fin with a smaller band below. Rear edge of the anal fin is straight and slanted. 

Length up to 61.0 cm (24 in)

Weight up to max. published weight: 3.8 kg (8.4 lbs)

 

DISTRIBUTION/HABITAT: S. mystinus is found along the coast from Alaska to Baja California. May be found near the surface or off the bottom, generally over shallow reefs, but also around kelp and over deep reefs. Form schools, sometimes with other rockfishes.

Sebastes mystinus4329897153_34929592a1_b

DIET IN THE WILD: Jellyfish, krill, copepods, fishes, hydroids and kelp. Larger blues eat relatively more fishes.

REPRODUCTION: S. mystinus matures between 6–9 years. Fertilization is internal with copulation and transfer of sperm via a modified urogenital papilla on the male.
The females store sperm in the ovaries for several months until ovulation then fertilization of the eggs occurs. They are viviparous. The larvae mature in shallow water.

LONGEVITY: up to 44 years 

PREDATORSAdults are preyed upon by other rockfish, lingcod, sharks, dolphins and sea lions.  

CONSERVATION: IUCN Not evaluated  

REMARKS: Blues are an important sports catch in California. During some years they represent up to 31% of all fishes taken in the marine recreational fisheries.

References  

Ron’s flickr http://www.flickr.com/photos/cas_docents/7564777760/in/set-72157608333101710/

fishbase  http://www.fishbase.org/summary/3983

California Academy of Sciences Steinhart Aquarium California Rocky Coast  2017

Pacific Coast Fishes Eschmeyer and Herald 1983 Easton Press page 144

eol eol.org/pages/211617/details

Probably More Than You Want To Know About The Fishes Of The Pacific Coast, Milton Love 1996 Really Big Press p175-177

Ron’s WordPress Shortlink  http://wp.me/p1DZ4b-CF

TAXONOMY
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii (ray-finned fishes0
Order: Scorpaeniformes (Scorpionfishes and flatheads)
Family: Sebastidae (Rockfishes, rockcods and thornyheads)

Genus/species: Sebastes melanops

NOTE Eschmeyer (CAS curator emeritus) and others recognize Sebastidae as a separate family that includes only the rockfishes. Others place rockfish together with scorpionfish in the
single family Scorpaenidae.

GENERAL CHARACTERISTICS: Black to blue-black mottled with gray. Some individuals have lighter patches on back and a gray lateral stripe from head to tail. It is originally all-black, but turns a mottled gray on the sides with age, often nearing white. Lacks the dark head bands of the blue rockfish; also has more gray, a smaller mouth, and a longer jaw than the blue.

Length up to 64 cm (25 in)

DISTRIBUTION: West Coast of North America (Eastern Pacific: Amchitka Island, Aleutian Islands, Alaska to Paradise Cove, Baja California, Mexico) where populations are stable.

Found down to a depth of 366 m.

DIET IN THE WILD: Fishes

REPRODUCTION: Sebastes sp. rockfish are slow-growing and extremely long-lived with black rockfish becoming sexually mature only after 6 to 8 years of age (max. reported age: 50 years). They have an elaborate courtship display followed by copulation and transfer of sperm via a modified urogenital papilla on the male. 
The females store sperm in the ovaries for several months until ovulation then fertilization of the eggs. They are viviparous. The larvae mature in shallow water. Reference: http://link.springer.com/article/10.1007/s10641-006-9170-9#page-1

LONGEVITY: up to 36 years

CONSERVATION: IUCN; Not evaluated

 

References

Ron’s flickr  http://www.flickr.com/photos/cas_docents/sets/72157608333101710/

Pacific Coast Fishes Eschmeyer and Herald 1983 Easton Press page 143

California Academy of Sciences, Steinhart Aquarium, California Rocky Coast 2017 

fishbase http://www.fishbase.org/summary/3979

Probably More Than You Want To Know About The Fishes Of The Pacific Coast, Milton Love 1996 Really Big Press pages 171-173

eol eol.org/pages/209605/hierarchy_entries/27948249/details#m…

Ron’s WordPress Shortlink http://wp.me/p1DZ4b-CP

 

TAXONOMY
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii (ray-finned fishes0
Order: Scorpaeniformes (Scorpionfishes and flatheads)
Family: Sebastidae (Rockfishes, rockcods and thornyheads)

Genus /Species; Sebastes chrysomelas

GENERAL CHARACTERISTICS: S. chrysomelas is dark brown-black with irregular clear yellow blotches on its back, lateral line and lower sides. Clear areas tend to run together on the lower sides with a yellow patch on membranes between anterior dorsal spines.

DISTRIBUTION/HABITAT: Eureka, California to Isla Natividada, Baja California, Mexico.
The Black and Yellow Rockfish is marine,feeds on bottom (demersal)  and is considered a kelp forest or inshore rockfish species. It is found from the intertidal zone down to 37 m (150 ft) but are most common in waters less than 18 m (50 ft) in kelp beds and rocky areas.

DIET IN THE WILD: It is a nocturnal feeder, ambushing its prey between dusk and dawn.

REPRODUCTION: Viviparous, live-bearing, fish. Females mature between 3 and 6 years of age and males between 3 and 4 years of age.

LONGEVITY: 22 years

CONSERVATION: Not Evaluated

REMARKS: Gopher rockfish are extremely closely related to the Black and Yellow Rockfish. S. chrysomelas is darker brown with yellow patches, and tends to prefer shallower water. S. carnatus (Gopher rockfish) has pinkish spots on a brown background, The two types are apparently genetically indistinguishable, and may represent a single species with two color morphs.

 References: 

Ron’s flickr https://www.flickr.com/photos/cas_docents/35639373843/in/dateposted-public/

California Academy of Sciences Steinhart Aquarium California Coastal Marine 2017

Ron’s flickr www.flickr.com/photos/cas_docents/sets/72157608333101710/

fishbase www.fishbase.org/summary/3959

Ron’s WordPress shortlink wp.me/s1DZ4b-2497

ADW animaldiversity.org/accounts/Sebastes_chrysomelas/classif…

http://wp.me/p1DZ4b-1hp

 

Taken 10-9-2008, 10-4-12, 10-29-2014

TAXONOMY
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii (ray-finned fishes)
Order: Scorpaeniformes (Scorpionfishes and flatheads)
Family: Sebastidae (Rockfishes, rockcods and thornyheads)

Genus/species: Sebastes carnatus

 CHARACTERISTICS: They are generally mottled appearance, with dark areas generally olive to reddish-brown, and the lighter areas being white or pinkish. The upper part of the back almost always has three light patches extending into the dorsal fins, and the lighter areas become more extensive ventrally.

Length: Up to 39.0 cm (15 inches).

 

DISTRIBUTION/HABITAT: Pacific coast from Oregon, to southern Baja California. S. carnatus is found in intertidal zone, but most occur at depths of 12–80 m (40-250 ft), living in crevices and holes during the day, and ranging further abroad at night.

 

REPRODUCTION: Viviparous, with planktonic larvae

LIFESPAN: 30 years.            

CONSERVATION: IUCN, not evaluated. 

REMARKS: Gopher Rockfish are extremely closely related to the Black-and-Yellow Rockfish. S. chrysomelas is darker brown or black with yellow patches, and tends to prefer shallower water. S. carnatus has pinkish spots on a brown background, The two types are apparently genetically indistinguishable, and may represent a single species with two color morphs. The two species are otherwise identical.

Color of life note: Rockfishes have disruptive camouflage which helps them blend in to that textured and hued background.
References

California Academy of Sciences Color of life Exhibit 2015

Ron’s WordPress shortlink  http://wp.me/s1DZ4b-2497

California Academy of Sciences Steinhart Aquarium California Coastal Marine Exhibit 2017

Ron’s flickr  http://www.flickr.com/photos/cas_docents/sets/72157608333101710/

BioOne www.bioone.org/doi/abs/10.1643/CG-02-061R2?journalCode=cope

eol eol.org/pages/215479/details

fishbase www.fishbase.org/summary/3956

TAXONOMY
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii (ray-finned fishes)
Order: Scorpaeniformes (Scorpionfishes and flatheads)
Family: Sebastidae (Rockfishes, rockcods and thornyheads)

Genus/species: Sebastes pinniger

GENERAL CHARACTERISTICS: The Canary Rockfish is bright yellow to orange mottled on a light gray background with 3 orange stripes across head and orange fins. The Lateral line is in a clear area. The pectoral, pelvic, and anal fins are moderately pointed and are large.

Length up to 76 cm (2.5 ft)

 

DISTRIBUTION/HABITAT: They are found from Alaska to Baja California, Mexico.
S. pinniger adults hover in loose groups above rocky bottoms at average depths of 80–200 m (264-660 ft).

DIET IN THE WILD: They feed on small fishes and krill.

REPRODUCTION: they are mature at 14 in (36 cm) or 5-6 years old., Fertilization: Internal fertilization, ovoviviparous

LONGEVITY: Up to 75 years

CONSERVATION: IUCN Not Evaluated
Minimum population doubling time 4.5 – 14 years. Various state restrictions on fishing have been put in place over the years, including banning retention of canary rockfish in Washington in 2003. Because this species is slow-growing, late to mature, and long-lived, recovery from these threats will take many years, even if the threats are no longer affecting the species.

REMARKS: The Vermillion Rockfish which is similar is more reddish and the lateral one is not in the grey zone.

References

Ron’s flickr Rockfishes https://www.flickr.com/photos/cas_docents/7786389830/in/album-72157608359804936/

Ron’s flickr Canary Rockfish http://www.flickr.com/photos/cas_docents/sets/72157608359804936/with/7564182434/

California Academy of Sciences Steinhart Aquarium California Rocky Reef 2017

PacificCoast Fishes Eschmeyer and Herald 1983 Easton Press page 146

fishbase www.fishbase.org/summary/3989

NOAA FISHERIES 2-3-17 www.fisheries.noaa.gov/pr/species/fish/canary-rockfish.html

Ron’s WordPress shortlink wp.me/p1DZ4b-Dm

 

 

TAXONOMY
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii (ray-finned fishes)
Order: Scorpaeniformes (Scorpionfishes and flatheads)
Family: Sebastidae (Rockfishes, rockcods and thornyheads)

Genus/species; Sebastes miniatus

GENERAL CHARACTERISTICS: Caudal fin slightly indented. Dark red in color, sides mottled with gray; mouth and fins red, fins usually edged with black; 3 obscure stripes radiating from each eye. The mouth is large, with the lower jaw slightly projecting. On fish shorter than 12 inches, the mottling is much more apparent and the fins are often edged with black. The vermilion rockfish has scales on the bottom of the lower jaw which make it rough to the touch. Max length : 91.0 cm (36 inches).

Sebastes miniatus14785052061_ca258d6da6_o

DISTRIBUTION/HABITAT: Eastern Pacific: British Columbia, Baja California, Mexico. Marine; Adults inhabit shallow to deep rocky reefs at depths of 100 to 500 feet, (has been taken from depths as great as 900 feet).

DIET IN THE WILD: Smaller fishes, squid and octopus. Most fishes that are eaten are other smaller kinds of rockfish.

REPRODUCTION: Viviparous. As with all other rockfish, fertilization is internal and the young are mobile with the free-swimming young feeding primarily upon shrimp–like organisms.

14808649413_7ea3b11ca2_k

REMARKS; Largest recorded in CA was 30 inches; Weight of at least 15 pounds. Largest taken off California by a recreational angler: 14 pounds, 9 ounces.

Color of Life note: Red color is the first to be filtered out as one depends deep into the ocean making this Vermillion rockfish hard to spot by predators.
Ref: California Academy of Sciences, Color of Life Exhibit 2015

References

California Dept of Fish and Wildlife  http://www.dfg.ca.gov/marine/mspcont4.asp

Ron’s flickr  http://www.flickr.com/photos/cas_docents/7804218942/in/set-72157608359804936/

fishbase http://www.fishbase.org/summary/3982       

Ron’s WordPress shortlink  http://wp.me/p1DZ4b-EU

 

TAXONOMY
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii (ray-finned fishes)
Order: Scorpaeniformes (Scorpionfishes and flatheads)
Family: Sebastidae (Rockfishes, rockcods and thornyheads)

Genus/pecies: Sebastes serriceps

 

TreefishIMG_8880GENERAL CHARACTERISTICS:  One of the most striking, unusually marked rockfishes, with black stripes over a yellow body and red lips and chin. Compact body with large head venomous spines.

DISTRIBUTION/HABITAT:  San Francisco to central Baja California Inhabiting areas with numerous caves, crevices and other protective recesses. They are solitary and territorial and usually found between 6–40 m (19-125 ft) a maximum depth of 45 m (190 ft).

IMG_8885

DIET IN THE WILD: Most probably either crepuscular (feeding at dawn and dusk) or nighttime ambush predator, feeding on shrimp, crabs and small fishes.

REPRODUCTION: Viviparous, same as other Sebastes.

PREDATORS: Sharks, dolphins, and seals.

LONGEVITY: Live up to 25 years.

REMARKS: S. serriceps is an important species in both the nearshore recreational fishery and in the commercial live fish fishery.

Serriceps means “saw head” in latin, referring to the large head spines. See below.

Treefish  (Juvenile) Sebastes serriceps IMG_0036

California Rocky Coast CC06

References

flickr  https://www.flickr.com/photos/cas_docents/4689974860/in/set-72157608333101710/

eol eol.org/pages/212870/details

WordPress Shortlink fishoncomputer.wordpress.com/wp-admin/post.php?post=5013&…

 CA dept of fish and gamewww.dfg.ca.gov/marine/nearshorefinfish/treefish.asp

 

TAXONOMY
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii (ray-finned fishes)
Order: Scorpaeniformes (Scorpionfishes and flatheads)
Family: Sebastidae (Rockfishes, rockcods and thornyheads)

Genus/species: Sebastes maliger

GENERAL CHARACTERISTICS: Brown, with yellow to orange ventral mottling. They have light-colored dorsal saddle patches on the anterior part of the body with vague bands over the head and through the dorsal fin. Often have freckles on head. The dorsal fin spines have deeply incised membranes and are very long.  All fins are dark brown to black except for the first dorsal fin, which has a yellow streak. Length To 61 cm (24 in).

DISTRIBUTION/HABITAT: Gulf of Alaska to Anacapa Passage in southern California. Bottom dwellers perching on rocks or hiding in rock crevices in subtidal waters to depths of 274 m (900 ft).

DIET IN THE WILD: Herring, demersal, pelagic crustaceans, crabs, amphipods, euphasiids, and copepods.

REPRODUCTION: Viviparous as in other Sebastes sp.

LONGEVITY: Live to 95 years.

PREDATORS: Larger fish such as sharks.

CONSERVATION: IUCN Not evaluated

California Rocky Coast CC06

References

 fishbase www.fishbase.org/summary/Sebastes-maliger.html

 eol Encyclopedia of Life eol.org/pages/211614/details 

Washington Dept of Fish and Wildlifewdfw.wa.gov/fishing/bottomfish/identification/rockfish/s_…

flickr http://www.flickr.com/photos/cas_docents/sets/72157608359804936/with/7793249686/

WORDPRESS SHORTLINK  http://wp.me/p1DZ4b-Eu

TAXONOMY
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii (ray-finned fishes)
Order: Scorpaeniformes (Scorpionfishes and flatheads)
Family: Sebastidae (Rockfishes, rockcods and thornyheads)

Genus/species: Sebastes rubrivinctus

GENERAL CHARACTERISTICS: Deep, fusiform, compressed. Adult colored white-pinkish with 4 dark red-orange to reddish-brown bars across back and base of tail. Length to 64 cm (25 inches).

DISTRIBUTION/HABITAT: Eastern Pacific: San Francisco, California, USA to Cape San Quentin, Baja California, Mexico. Found at depths to 300 m (900 ft). Juveniles shallower. Adults typically solitary and shelter in and around rocks, large sea anemones, ledge overhangs and in kelp.

DIET IN THE WILD: Benthic predators of crabs and hermit crabs, shrimps, fishes, octopuses.

MORTALITY: Live to at least 18 years.

REPRODUCTION: Fertilization internal. Livebearer.

REMARKS: A popular sport fish. Sebastes is Greek for “magnificent.” Rubrivinctus is formed from 2 Latin words that translate as “red banded.”

CONSERVATION: 2006 IUCN red list of threatened species.

LOCATION: California Rocky Coast CC06 and CC17

References

fishbase www.fishbase.ca/summary/3997

eol eol.org/pages/211626/details

flickr    http://www.flickr.com/photos/cas_docents/sets/72157608359804936/with/3505702397/

WordPress shortlink  http://wp.me/p1DZ4b-E7

TAXONOMY
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii (ray-finned fishes)
Order: Scorpaeniformes (Scorpionfishes and flatheads)
Family: Sebastidae (Rockfishes, rockcods and thornyheads)

Genus/species: Sebastes caurinus 

GENERAL CHARACTERISTICS:   Deep, stout body. Color highly variable; dark brown or olive to pink or orange-red above, with patches of pink-copper and occasionally yellow.. Fins primarily copper, often dusky. They are distinguished from other rockfish species by the clear areas along the posterior two thirds of the lateral lines, and in having a whitish underside, usually with two dark bands radiating from eye. Dorsal fin membrane not deeply incised.  Length to 57 cm (22.44 inches long). Weight to 2.6 kg (5.73 pounds).

DISTRIBUTION/HABITAT: Gulf of Alaska to central Baja California. Habitat: Rocky or rock-sand bottoms, 10–180m. Solitary, bottom-dwelling reef fish which frequently live near pinnacles and wrecks. Particularly abundant in shallow, protected bays and inlets, among rocks and kelp beds; also found around pilings and jetties or under floats.  Adults avoid warm water; thus live deeper in southern California than further north.   

DIET IN THE WILD: Juveniles consume plankton. Adults are mainly benthic (organisms living on or in sea or lake bottoms).feeders and prey upon fishes, crabs, mysid shrimp, prawns, amphipods, octopuses, polychaete worms and fish eggs.

REPRODUCTION: Fertilization internal. via copulation and transfer of sperm through a modified urogenital papilla on the male.
The females store sperm in the ovaries for several months until ovulation then fertilization of the eggs. They are viviparous. The larvae mature in shallow water. Viviparous. Larvae planktonic.  Sexually mature at around five years.  

Mortality/Longevity: Live to at least 55 years.  Adults are eaten by lingcod Ophiodon elongatus and also other large predators.

REMARKS: Solitary usually seen alone, but are sometimes present in mixed aggregates with other species. Individual fish display agnostic behavior to show “protective territoriality”.

Rockfish species that live in the California coastal waters, are very important to commercial and sport fisheries. The 60 species of rockfish caught account for 34% by weight of all sportfish landed in California.

CONSERVATION: IUCN: No special status

California Rocky Coast CC06

References

 fishbase www.fishbase.org/summary/3957

 Animal Diversity Web (U. of Michigan) animaldiversity.ummz.umich.edu/accounts/Sebastes_caurinus/

flickr http://www.flickr.com/photos/cas_docents/sets/72157608359804936/with/7805614498/

WordPress shortlink  http://wp.me/p1DZ4b-Dx

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