Bivalvia |
Arcida |
Philobryidae
Environment: milieu / climate zone / εύρος βάθους / distribution range
Οικολογία
; εύρος βάθους 0 - 1890 m (Αναφ. 124196). Polar; 53°S - 79°S, 180°W - 180°E
Southwest Atlantic and the Antarctic.
Length at first maturity / Μέγεθος / Weight / Age
Γεννητική Ωρίμανση: Lm ?, range 1 - ? cm Max length : 0.6 cm TL αρσενικό/απροσδιόριστο; (Αναφ. 7875); common length : 0.3 cm TL αρσενικό/απροσδιόριστο; (Αναφ. 7875)
Life cycle: Fertilization occurs in the mantle cavity after the release of mature eggs in the early austral summer or late spring. Females dominate males in number during summer which is when females are brooding (early stage) nonshelled embryos in the infrabranchial chamber. Shell development begins during late summer and early autumn with simultaneous development of ova, i.e., females may simultaneously carry eggs and brood larvae. Males dominate females in number during late autumn and early winter, it is also when the ova are fully developed. Shelled juveniles are released in late winter to early summer. Egg and embryo development takes 2 years (Refs. 833, 72610, 105049).
SAUP Database 2006 SAUP Database. www.seaaroundus.org. (Αναφ. 356)
IUCN Red List Status
(Αναφ. 130435: Version 2025-1)
CITES status (Αναφ. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
| FishSource |
Εργαλεία
Περισσότερες πληροφορίες
Τροφική ΟικολογίαFood items (preys)
Σύσταση δίαιτας
Κατανάλωση τροφής
Θηρευτές
Population dynamicsΑύξησηMax. ages / sizesLength-weight rel.Length-length rel.Length-frequenciesMass conversionΑφθονία PhysiologyΚατανάλωση οξυγόνου
Human RelatedStamps, coins, misc.
Διαδικτυακές πηγές
Estimates based on models
Preferred temperature
(Ref.
115969): -1.5 - 1.4, mean -0.5 (based on 473 cells).
Ελαστικότητα
Χαμηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού 4,5 - 14 έτη (K=0.09-0.11).
Fishing Vulnerability
Moderate to high vulnerability (49 of 100).
Price category
Unknown.