Achelia alaskensis

Achelia alaskensis   (Cole, 1904)


Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Achelia alaskensis  AquaMaps  Data sources: GBIF OBIS
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Classification / Names Κοινά ονόματα | Συνώνυμα | CoL | ITIS | WoRMS

Pycnogonida | Pantopoda | Ammotheidae

Environment: milieu / climate zone / εύρος βάθους / distribution range Οικολογία

; εύρος βάθους 0 - 180 m (Αναφ. 2153).  Subtropical

Distribution Χώρες | Περιοχές FAO | Οικοσυστήματα | Παρουσίες | Εισαγωγές

Pacific and Arctic Oceans: Aleutian Islands, Bering Sea (Ref. 2153). Subtropical, Temperate.

Length at first maturity / Μέγεθος / Weight / Age

Γεννητική Ωρίμανση: Lm ?  range ? - ? cm Max length : 1.0 cm LS αρσενικό/απροσδιόριστο; (Αναφ. 2153)

Short description Μορφολογία

Tiny species, leg span slightly less than 1 cm. Trunk circular in outline, lateral processes contiguous, armed with 0 to 3 short setae. Ocular tubercle very low, not as tall as its diameter, eyes well pigmented. Proboscis typical. Abdomen extending only to distal tip of first coxae, fourth leg pair. Chelifores short, with short distal setae, chelae stubs oval. Palps 8 segmented, short. Ovigers typical. Legs moderately slender with few setae, propodus slender with 3 primary heel spines and 2 lateral smaller spines, sole with 6 to 7 short small spines. Auxiliaries about 0.7 as long as main claw (Ref. 2153, p. 2).

Βιολογία     Γλωσσάρι (π.χ. epibenthic)

Larvae found to develop on the hydromedusa Polyorchis karafutoensis (Ref. 121217).

Life cycle and mating behavior Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Eggs | Γονιμότητα | Larvae

Members of the class Pycnogonida are gonochoric and sexually dimorphic. During copulation, male usually suspends itself beneath the female. Fertilization occurs as the eggs leave the female's ovigers. Males brood the egg masses until they hatch. Life cycle: Eggs hatch into protonymphon larva then to adults.

Main reference Αναφορές | Συντονιστής | Συνεργάτες

Child, C.A. 1995 Pycnogonida of the Western Pacific Islands XI. Collections from the Aleutians and other Bering Sea islands, Alaska. Smithsonian Contributions to Zoology 569:1-33. (Αναφ. 2153)

IUCN Red List Status (Αναφ. 130435: Version 2025-1)


CITES status (Αναφ. 108899)

Not Evaluated

CMS (Αναφ. 116361)

Not Evaluated

Threat to humans

Human uses


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Εργαλεία

Περισσότερες πληροφορίες

Τροφική Οικολογία
Food items (preys)
Σύσταση δίαιτας
Κατανάλωση τροφής
Θηρευτές
Οικολογία
Population dynamics
Αύξηση
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Αφθονία
Life cycle
Αναπαραγωγή
Γεννητική Ωρίμανση
Γονιμότητα
Γεννοβολία
Eggs
Egg development
Larvae
Distribution
Physiology
Κατανάλωση οξυγόνου
Human Related
Stamps, coins, misc.
Αναφορές

Διαδικτυακές πηγές

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | Fishipedia | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Δέντρο Ζωής | Wikipedia (Go, αναζήτηση) | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 4.6 - 15.8, mean 8.9 (based on 616 cells).
Fishing Vulnerability (Αναφ. 71543): Low vulnerability (10 of 100).
Price category (Αναφ. 80766): Unknown.