Ascorhynchus orthostomum

Ascorhynchus orthostomum   Child, 1998

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Classification / Names Κοινά ονόματα | Συνώνυμα | CoL | ITIS | WoRMS

Pycnogonida | Pantopoda | Ammotheidae

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

βαθύβιο(ς); εύρος βάθους 1400 - 1586 m (Αναφ. 9).  Temperate

Distribution Χώρες | Περιοχές FAO | Οικοσυστήματα | Παρουσίες | Εισαγωγές

Southwest Pacific: New Zealand (Ref. 9, 1847).

Length at first maturity / Μέγεθος / Weight / Age

Γεννητική Ωρίμανση: Lm ?  range ? - ? cm Max length : 4.6 cm LS αρσενικό/απροσδιόριστο; (Αναφ. 9)

Short description Μορφολογία

Trunk fully segmented, first 3 segment posteriors with cowlings capped by low mediodorsal cones. Lateral processes longer than their diameters, with low conical dorso-distal tubercles. Neck as long as its diameter, oviger bases placed halfway between first lateral processes and expansion at chelifore insertion. Ocular tubercle broad, low, pointed lateral tubercles. Ocular tubercle low cone. Eye large, darkly pigmented. Proboscis elongate, longer than trunk length, cylindrical, without divisions, with rounded oral surface. Abdomen long, slender, inflated distally, extending to distal rim of fourth leg second coxae. Chelifore scapes 1 segment, cylindrical, curved inward, longer than twice their diameters, armed with few short distal setae. Chelae as atrophied bumps, carried retracted within scape tips. Palps 10 segmented, fifth segment, inflated, distal 5 segments slender, each slightly curved, with few ventral setae, some longer than segment diameters. Oviger 10 segmented, fifth segment longer than fourth; fifth and sixth segments with lateral rows of few setae. Strigilis well formed, segments short distally, with denticulate spines in the formula 13: 7: 6: 6, in two rows, spines with two lateral serrations per side. Terminal claw about 0.6 length of terminal segment, almost straight, without teeth. Legs fairly long; first tibiae the longest segments; longest segment armed with dorsal, lateral, and ventral rows of very short setae. Femur with fewer short setae; cement glands paired, each with single low cribriform pore. Tarsus 0.9 length of propodus, both armed with row of very short sole spines and fewer short dorsal setae. Claw slender, moderately curved, slightly more than half propodal length. Female slightly larger in all measurements except oviger, ocular tubercle smaller, tarsus slightly longer than those of male.

Βιολογία     Γλωσσάρι (π.χ. epibenthic)

Maximum depth (Ref. 1847).

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. 1998 The marine fauna of New Zealand: Pycnogonida (sea spiders). NIWA Biodiversity Memoire 109. National Institute of Water and Atmospheric Research (NIWA). Washington, D.C. 20530, USA. 71 p. + Figure 2A-G, 3A-F, 4, 5. (Αναφ. 9)

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

  Not Evaluated 

CITES status (Αναφ. 108899)

Not Evaluated

CMS (Αναφ. 116361)

Not Evaluated

Threat to humans

  Harmless

Human uses


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Περισσότερες πληροφορίες

Τροφική Οικολογία
Food items (preys)
Σύσταση δίαιτας
Κατανάλωση τροφής
Θηρευτές
Οικολογία
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
Χώρες
Περιοχές FAO
Οικοσυστήματα
Παρουσίες
Εισαγωγές
Physiology
Κατανάλωση οξυγόνου
Human Related
Stamps, coins, misc.
Outreach
Συνεργάτες
Taxonomy
Κοινά ονόματα
Συνώνυμα
Μορφολογία
Φωτογραφίες
Αναφορές
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

Fishing Vulnerability (Αναφ. 71543): Low vulnerability (10 of 100).
Price category (Αναφ. 80766): Unknown.

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