Cottus asper Richardson, 1836
Prickly sculpin
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Cottus asper
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Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa
> Perciformes/Cottoidei (Sculpins) > Cottidae (Sculpins)
Etymology: Cottus: Greek, kottos = a fish (Ref. 45335); asper: asper meaning rough (Ref. 1998).
More on author: Richardson.
Etymology: Cottus: Greek, kottos = a fish (Ref. 45335); asper: asper meaning rough (Ref. 1998).
More on author: Richardson.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet Ökologie
seewasser; süßwasser; brackwasser demersal; katadrom (Ref. 138280). Temperate; 60°N - 32°N
Verbreitung Territorien | FAO Gebiete | Ökosysteme | Vorkommen | Punkt Karte | Einführungen | Faunafri
North America: Pacific slope drainages from Seward, Alaska to Ventura River, California, USA; also east of Continental Divide in upper Peace River in British Columbia, Canada. Exhibits coastal and inland forms that are genetically distinct (Ref. 27547).
Größe / Gewicht / Alter
Geschlechtsreife: Lm ? range ? - ? cm
Max length : 30.0 cm TL Männchen/unbestimmt; (Ref. 5723); common length : 7.0 cm TL Männchen/unbestimmt; (Ref. 12193); max. veröff. Alter: 7 Jahre (Ref. 28210)
Max length : 30.0 cm TL Männchen/unbestimmt; (Ref. 5723); common length : 7.0 cm TL Männchen/unbestimmt; (Ref. 12193); max. veröff. Alter: 7 Jahre (Ref. 28210)
Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie
Rückenflossenstacheln (insgesamt) : 7 - 10; Rückenflossenweichstrahlen (insgesamt) : 18 - 23; Afterflossenstacheln: 0; Afterflossenweichstrahlen: 15 - 19; Wirbelzahl: 34 - 39. Distinguished by a complete lateral line, a single pore at the tip of the chin, the presence of 15 to 19 anal rays, and well developed palatine teeth (Ref. 27547). Pectorals large and fan-shaped; caudal truncate or slightly rounded (Ref. 27547). Dark brown, olive or gray above and on sides, whitish yellow to white below; usually three dark irregular blotches or bars below soft dorsal; vague irregular dark mark on sides; fins (except anal) have dark bars, the first dorsal with a dark spot towards the rear (Ref. 27547). Both sexes show an orange band on the edge of the first dorsal fin at spawning time (Ref. 27547). The inland form is generally more densely prickled over a larger portion of the body while the coastal form shows a reduced number of prickles (Ref. 28211).
Body shape (shape guide): elongated.
Body shape (shape guide): elongated.
There appears to be two genetically distinct forms (Ref. 27547), an inland form found in sandy and rocky shores of lakes, and a coastal form usually found over sand in quiet runs of small to medium rivers; sometimes in salt water near river mouths (Ref. 2850). The coastal form moves into brackish estuaries to spawn (Ref. 27547). Oviparous with demersal, adhesive eggs and pelagic larvae (Ref. 265). Adults feed mainly on aquatic insect larvae and bottom invertebrates (Ref. 1998). Too small to be used as food and too difficult to capture in large numbers to be used for anything else (Ref. 27547) but large individuals are reported to be excellent eating as well as good bait fishes (Ref. 2850).
Lebenszyklus und Paarungsverhalten Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
Prior to breeding, males move downstream and select a nesting site under boulders or flat rocks. Females aggregate some distance upstream and move down singly to the spawning area. Courtship behavior occurs outside the nest until a female is selected. The pair enter the nesting site, courting continues until eggs are deposited and fertilized. The female then leaves the nest and goes back upstream to feed, while the male spawns with other females or fans and guards the eggs. The male does not feed until the eggs have hatched, moving upstream only in the late summer (Ref. 1998, 27547). During the planktonic stage, larvae of the freshwater nonanadromous form in lakes show distinct diurnal vertical migrations, being most abundant at the surface during the darkest hours of the night. They apparently stay deep in the water during the day and on bright moonlight nights (Ref. 28920). Metamorphosis is complete by the end of the planktonic period and the young take up a demersal mode of life. The young coastal form may move upstream during the fall, although the young may remain in the estuary for a full year (Ref. 27547).
Hauptreferenz
Laden Sie Ihre Referenzen hoch | Referenzen | Koordinator | Partner
Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
nicht bedroht (LC) ; Date assessed: 08 November 2011
CITES
Not Evaluated
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: kommerziell; Aquarium: Öffentliche Aquarien; Köder: occasionally
FAO - Publication: search | FishSource |
Mehr Information
Trophische Ökologie
Lebensmittel (Beutetiere)
Nahrungszusammensetzung
Nahrungsaufnahme
Lebensmittelrationen
Räuber
Lebensmittel (Beutetiere)
Nahrungszusammensetzung
Nahrungsaufnahme
Lebensmittelrationen
Räuber
Populationsdynamik
Wachstumsparameter
Max. Alter/Größen
Länge-Gewicht-Rel.
Länge-Länge-Verhältnis.
Längenhäufigkeiten
Massenkonvertierung
Rekrutierung
Dichte
Wachstumsparameter
Max. Alter/Größen
Länge-Gewicht-Rel.
Länge-Länge-Verhältnis.
Längenhäufigkeiten
Massenkonvertierung
Rekrutierung
Dichte
Lebenszyklus
Fortpflanzung
Geschlechtsreife
Reifung/Kiemen rel.
Fruchtbarkeit
Ablaichen
Laichaggregationen
Eier
Eientwicklung
Larven
Larven Pop.Dyn.
Fortpflanzung
Geschlechtsreife
Reifung/Kiemen rel.
Fruchtbarkeit
Ablaichen
Laichaggregationen
Eier
Eientwicklung
Larven
Larven Pop.Dyn.
Anatomie
Kiemenoberfläche
Gehirn
Otolith
Kiemenoberfläche
Gehirn
Otolith
Physiologie
Körperliche Zusammensetzung
Nährstoffe
Sauerstoffverbrauch
Schwimmart
Schwimmgeschwindigkeit
Visuelle Pigmente
Fischgeräusche
Krankheiten und Parasiten
Toxizität (LC50s)
Körperliche Zusammensetzung
Nährstoffe
Sauerstoffverbrauch
Schwimmart
Schwimmgeschwindigkeit
Visuelle Pigmente
Fischgeräusche
Krankheiten und Parasiten
Toxizität (LC50s)
Genetik
Genom
Genetik
Heterozygotie
Vererbbarkeit
Genetische Vielfalt
Genom
Genetik
Heterozygotie
Vererbbarkeit
Genetische Vielfalt
Menschenbezogen
Aquakultur-Systeme
Aquakultur Profile
Zuchtlinien
Ciguatera-Fälle
Briefmarken, Münzen, Verschiedenes.
Aquakultur-Systeme
Aquakultur Profile
Zuchtlinien
Ciguatera-Fälle
Briefmarken, Münzen, Verschiedenes.
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Internet Quellen
AFORO (otoliths) | Alien/Invasive Species database | Aquatic Commons | BHL | Cloffa | Websites from users | FishWatcher Einträge suchen | CISTI | Catalog of Fishes: Gattung, Arten | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | Öffentliche Aquarien | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: Gehe zu, Suchen | World Records Freshwater Fishing | Zoobank | Zoologischer Rekord
Schätzungen auf der Grundlage von Modellen
|
Phylogenetischer Diversitätsindex (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.00832 (0.00340 - 0.02033), b=3.16 (2.98 - 3.34), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
|
Trophische Ebene (Ref. 69278) |
3.2 ±0.0 se; based on diet studies. |
|
Widerstandsfähigkeit (Ref. 120179) |
mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (tmax=7; Fec=280). |
|
Anfälligkeit der Fischerei (Ref. 59153) |
Moderate to high vulnerability (51 of 100). 🛈 |
|
Preiskategorie (Ref. 80766) |
Low. |