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Diplodus annularis (Linnaeus, 1758)

Annular seabream
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Diplodus annularis   AquaMaps   Data sources: GBIF OBIS
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Diplodus annularis
Picture by Patzner, R.


Italy country information

Common names: Aspareddu, Carlini, Isparedda
Occurrence: native
Salinity: brackish
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/it.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Hureau, J.-C., 1991
National Database: ICTIMED

Common names from other countries

Classification / Names Κοινά ονόματα | Συνώνυμα | Catalog of Fishes(Γένος, Είδη) | ITIS | CoL | WoRMS | Cloffa

> Eupercaria/misc (Various families in series Eupercaria) > Sparidae (Porgies)
Etymology: Diplodus: Greek, diploos = twice + Greek, odous = teeth (Ref. 45335).
  More on author: Linnaeus.

Environment: milieu / climate zone / depth range / distribution range Οικολογία

Θαλασσινό(ά); Υφάλμυρο βενθοπελαγικό; εύρος βάθους 0 - 90 m (Ref. 4781).   Subtropical; 49°N - 27°N, 19°W - 42°E

Κατανομή Χώρες | Περιοχές FAO | Οικοσυστήματα | Παρουσίες | Point map | Εισαγωγές | Faunafri

Eastern Atlantic: Canary islands, also found along the coast of Portugal northward to the Bay of Biscay, Mediterranean, Black Sea and Sea of Azov (Ref. 4781).

Length at first maturity / Μέγεθος / Βάρος / Age

Maturity: Lm 11.6, range 8 - 19.6 cm
Max length : 28.0 cm TL αρσενικό/απροσδιόριστο; (Ref. 124816); common length : 13.0 cm TL αρσενικό/απροσδιόριστο; (Ref. 3397); μεγ. δημοσιευμένο βάρος: 330.00 g (Ref. 115876); μεγ. αναφερόμενη ηλικία: 17 έτη (Ref. 124518)

Short description Μορφολογία | Μορφομετρία

Ραχιαίες άκανθες (συνολικά): 11; Μαλακές ραχιαίες ακτίνες (συνολικά): 11-13; Εδρικές άκανθες 3; Μαλακές εδρικές ακτίνες: 11 - 12

Βιολογία     Γλωσσάρι (π.χ. epibenthic)

Inhabit chiefly Zostera seagrass beds but also found on Posidonia beds and sandy bottoms, rarely on rocky bottoms. Carnivorous, feed on worms, crustaceans, mollusks, echinoderms and hydrozoans. The sexes are separated, although these fish are potential hermaphrodites; certain individuals are protandric (Ref. 4781).

Life cycle and mating behavior Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες

Normally sexes are separate but some individuals are protandrous due to geographical variation in sexual pattern (Ref. 103751). However, histological studies confirm no degenerating functional tissue of one sex (e.g. vitellogenic or later-stage follicles) and no proliferation of tissue of the other sex can be found on this species indicating the absence of sex change. This particular condition is also known as nonfunctional hermaphroditism previously known as rudimentary hermaphroditism (Ref. 91314). Also Ref. 28504.

Main reference Upload your references | Αναφορές | Συντονιστής | Συνεργάτες

Bauchot, M.-L. and J.-C. Hureau, 1990. Sparidae. p. 790-812. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 2. (Ref. 3688)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 18 August 2009

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

αλιεία: Εμπορικό(ά); αλιεία αναψυχής: ναί

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Διαδικτυακές πηγές

Estimates based on models

Preferred temperature (Ref. 115969): 14.8 - 21.1, mean 18.3 (based on 220 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01202 (0.01093 - 0.01323), b=3.07 (3.05 - 3.09), in cm Total Length, based on LWR estimates for this species (Ref. 93245).
Τροφικό Επίπεδο (Ref. 69278):  3.6   ±0.0 se; based on diet studies.
Ελαστικότητα (Ref. 120179):  Μεσαίο(α), ελάχιστος χρόνος για διπλασιασμό πληθυσμού 1,4 - 4,4 έτη (K=0.2-0.5; tmax=7; Fecundity=18,000 - 212,000).
Prior r = 0.75, 95% CL = 0.50 - 1.13, Based on 4 stock assessments.
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (36 of 100).
Climate Vulnerability (Ref. 125649):  Moderate vulnerability (36 of 100).
Price category (Ref. 80766):   Low.