Isognomon isognomum, Wader tree oyster

Isognomon isognomum   (Linnaeus, 1758)

Wader tree oyster

Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Isognomon isognomum  AquaMaps  Data sources: GBIF OBIS
Upload your photos 
 All pictures | Google image |
Image of Isognomon isognomum (Wader tree oyster)
Isognomon isognomum

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

Bivalvia | Ostreida | Isognomonidae

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

; εύρος βάθους 0 - 20 m (Αναφ. 348).  Tropical

Distribution Χώρες | Περιοχές FAO | Οικοσυστήματα | Παρουσίες | Εισαγωγές

Indo-Pacific: from East Africa, to eastern Polynesia; north to southern Japan and south to Queensland.

Length at first maturity / Μέγεθος / Weight / Age

Γεννητική Ωρίμανση: Lm ?  range ? - ? cm Max length : 15.0 cm ShL αρσενικό/απροσδιόριστο; (Αναφ. 348); common length : 10.0 cm SL αρσενικό/απροσδιόριστο; (Αναφ. 348)

Short description Μορφολογία

Shell relatively high and narrow in outline, with undulating commissure and strong posteroventral elongation. Shape often very irregular, due to the confined space in which the shell grows and to the effect of repair. Dorsal margin long and straight to slightly arched, more or less strongly expanded posteriorly in a wing-like ear that increases with growth and may attain a size double the length of shell. Anterior margin elongated, markedly sinuous dorsally and extending a little or not at all forward of umbones. Posterior margin concave near the posterior ear, then more or less parallel to anterior margin. Ventral margin roughly rounded. Umbones small, pointing at anterior end of dorsal margin. Outer surface with irregularly concentric lamellate processes, often encrusted with marine growths and corroded towards the umbones. Ligamental area with numerous transverse grooves (more than 20 in large specimens). Nacreous area of the inner side of shell more or less expanded ventrally, its margin often poorly defined. Colour: outside of shell bluish purple to almost black, often paler to whitish umbonally. Interior porcelaneous and similarly coloured on non-nacreous area; nacreous area much paler, with bluish purple hue.

Βιολογία     Γλωσσάρι (π.χ. epibenthic)

Byssally attached to hard substrates, with the shell vertically disposed and the dorsal margin lying on the rock surface, or to boulders and corals. Often occurs in dense colonies (maximum recorded density of about 870 individuals/m2), sometimes forming mixed natural beds with Malleus regula. Littoral and sublittoral (Ref. 348).

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

Members of the class Bivalvia are mostly gonochoric, some are protandric hermaphrodites. Life cycle: Embryos develop into free-swimming trocophore larvae, succeeded by the bivalve veliger, resembling a miniature clam.

Main reference Αναφορές | Συντονιστής | Συνεργάτες

Poutiers, J.M. 1998 Bivalves. Acephala, Lamellibranchia, Pelecypoda. p. 123-362. In Carpenter, K. E. and V. H. Niem. 1998. FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Volume 1. Seaweeds, corals, bivalves, and gastropods. Rome, FAO. (Αναφ. 348)

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


| FishSource |

Εργαλεία

E-book | Οδηγός πεδίου

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

Preferred temperature (Ref. 115969): 24.4 - 29.3, mean 28.4 (based on 3576 cells).
Fishing Vulnerability (Αναφ. 71543): Low vulnerability (10 of 100).
Price category (Αναφ. 80766): Unknown.

Σχόλια & Διορθώσεις
Επιστροφή στην αναζήτηση
Random Species
Πίσω στην αρχή