Cepphus columba, Pigeon guillemot

Cepphus columba   Pallas, 1811

Pigeon guillemot
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Classification / Names आम नाम | उपशब्द | CoL | ITIS | WoRMS

Aves | Charadriiformes | Alcidae

Environment: milieu / climate zone / गहराई सीमा / distribution range पारिस्थितिकी

; गहराई सीमा 0 - 45 m (संदर्भ 60377), usually 15 - 20 m (संदर्भ 60377).  Temperate; 71°N - 32°N, 145°E - 116°W

Distribution देश | ऐफ ऐ ओ क्षेत्र | Ecosystems | संयोग | भूमिका

Eastern Pacific and the Arctic: Alaska to California. Temperate to subtropical.

Length at first maturity / आकार / Weight / Age

परिपक्व अवधि: Lm ?  range ? - ? cm Max length : 35.0 cm TL पुल्लिंग / अलिंग; (संदर्भ 8812); अधिकतम प्रकाशित वज़न: 487.00 g (संदर्भ 356)

Short description आकृति विज्ञान

Culmen: 4.39 cm; wing: 1.88 cm.

जीवविज्ञान     शब्द संग्रह (उदाहरणार्थ epibenthic)

Total Length: 30 to 35 cm (Ref. 8812). A large species (Ref. 87784). Common depth of 15 to 20 m is foraging depth most preferred by species (Ref. 60377). Nearshore feeder (Ref. 87784). Pursuit diver; coastal; <15 km; water <20m deep (Ref. 356). Based on stable isotope analysis (SIA) diet study of egg albumin, belongs to higher N signature group (based on ratios of stable isotopes of nitrogen and carbon): piscivorous with pelagic foraging range. Aquatic courtship display such as calling and wing-raising, head dipping below the sea surface, and flipping below the sea surface or skittering. Typically nests in crevices. On the Farallon Islands, this species usurps nests of smaller Cassin's Auklet by destroying eggs or chicks thereby effectively lowering its habitat competitor's reproductive success. Severely affected by El Niño events by abandoning nesting attempts in the Farallon Islands in central California. Vulnerable to oil spill as a diving species; population still depressed, with over 50% decline, 9 years after the 1989 Exxon Valdez oil spill in Prince William Sound as an effect of persistent trace oil in the water that caused a decline in forage fish abundance (Ref. 87784).

Life cycle and mating behavior परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | Eggs | Fecundity | Larvae

Main reference संदर्भ | संयोजक | सहयोगीयो

SAUP Database. 2006. (संदर्भ 356)

IUCN Red List Status (संदर्भ 130435: Version 2024-2)

  Least Concern (LC) ; Date assessed: 07 August 2018

CITES status (संदर्भ 108899)

Not Evaluated

CMS (संदर्भ 116361)

Not Evaluated

Threat to humans

Human uses


| FishSource |

साधन

अधिक जानकारी

Trophic Ecology
Food items (preys)
संघटक आहार
आहार खपत
परभक्षी
पारिस्थितिकी
Population dynamics
बाढ़
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
बहुतायत
Life cycle
पुनरुत्पत्ति
परिपक्व अवधि
Fecundity
मछलीऔ का अंडे देना
Eggs
Egg development
Larvae
Distribution
Physiology
Oxygen consumption

इंटरनेट स्रोत

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | Fishipedia | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Tree of Life | Wikipedia (Go, खोज) | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 4.9 - 11.2, mean 8.5 (based on 412 cells).
Fishing Vulnerability (संदर्भ 71543): Low vulnerability (25 of 100).
Price category (संदर्भ 80766): Unknown.