Anoplarchus purpurescens  Gill, 1861

High cockscomb
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Anoplarchus purpurescens   AquaMaps   Data sources: GBIF OBIS
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Image of Anoplarchus purpurescens (High cockscomb)
Anoplarchus purpurescens
Picture by Love, M.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Stichaeidae (Pricklebacks) > Xiphisterinae
Etymology: Anoplarchus: Greek, ana = up + Greek, oplon = shield + Greek, archos = anus (Ref. 45335).   More on author: Gill.

Environment / Climate / Range Ecology

Marine; demersal; depth range 1 - 30 m (Ref. 2850).   Temperate, preferred ?; 66°N - 32°N

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Eastern Pacific: Pribilof Islands, Alaska to Santa Rosa Island and Trinidad Bay, southern California, USA.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 20.0 cm TL male/unsexed; (Ref. 2850)

Short description Morphology | Morphometrics

Dorsal spines (total): 55 - 58; Dorsal soft rays (total): 0; Anal spines: 0; Anal soft rays: 39 - 40; Vertebrae: 58 - 61. Caudal with convex outer margin (Ref. 6885). Color very variable- may be light to dark gray with olivaceous overtones, brown to dark brown with or without reddish overtones, or purple to almost black. Females are less varied in color, but show more pattern, usually having green grayish backgrounds with brownish reticulations, or dark brownish backgrounds with subdued reticulation. Belly pale. In the males, the cockscomb and under surface of head are pale, rather yellowish, and without speckling. In the female, the head is more speckled and mottled. There is a gray bar across the base of the caudal peduncle. At breeding season, the male develops bright orange colors on its anal and pectoral fins, and reddish on the caudal and dorsal fins (Ref. 6885).

Biology     Glossary (e.g. epibenthic)

Usually found in intertidal areas under rocks (Ref. 2850). May remain out of water under rocks or seaweed (Ref. 31184). Green algae is an important food item but may also feed on polychaete worms, crustaceans and mollusks (Ref. 6885). Breathes air (Ref. 31184) and can remain out of water for 15-25 hours if kept moist (Ref. 51276).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Spawning individuals are territorial. The female guards the egg mass deposited between rocks and shells by bending her body over the eggs. She fans the eggs by moving the posterior part of her body (Ref. 6885). In the aquarium, males mate with several females (Ref. 39998).

Main reference Upload your references | References | Coordinator | Collaborators

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. (Ref. 2850)

IUCN Red List Status (Ref. 109396)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | Public aquariums | PubMed | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), based on all LWR estimates for this body shape (Ref. 93245).
Trophic Level (Ref. 69278):  2.9   ±0.1 se; Based on diet studies.
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (tm=2-3; Fec=2,700).
Vulnerability (Ref. 59153):  Low to moderate vulnerability (29 of 100) .