Overview

Comprehensive Description

Diplodus annularis (Linnaeus, 1758)

Sea of Marmara : 15100-693 (2 spc.), 17.04.1992 , Front of Goenen Stream , trawl , 33 m, L. Eryilmaz . Aegean Sea : 15100-304 (10 spc.), 11.05.1964 , Bozcaada Island-Tavsan Island , trawl , 20 m . Mediterranean Sea : 15100-303 (20 spc.), 20.05.1967 , Karatas, 22 m , M. Demir ; 15100-295 (1 spc.), 20.05.1967 , Karatas, 22 m , M. Demir .

  • Nurettin Meriç, Lütfiye Eryilmaz, Müfit Özulug (2007): A catalogue of the fishes held in the Istanbul University, Science Faculty, Hydrobiology Museum. Zootaxa 1472, 29-54: 46-46, URL:http://www.zoobank.org/urn:lsid:zoobank.org:pub:428F3980-C1B8-45FF-812E-0F4847AF6786
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Biology

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).
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Distribution

Eastern Atlantic: Madeira and Canary islands. Also found along the coast of Portugal northward to the Bay of Biscay, Mediterranean, Black Sea and Sea of Azov (Ref. 4781).
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Mediterranean Sea, BlackSea, Sea of Azov, eastern Atlantic: Bay of Biscay to Madeira and Canary Islands.
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Physical Description

Size

Maximum size: 240 mm ---
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Max. size

24.0 cm TL (male/unsexed; (Ref. 3397)); max. reported age: 7 years (Ref. 26328)
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Ecology

Habitat

Environment

benthopelagic; brackish; marine; depth range 0 - 90 m (Ref. 4781)
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Depth range based on 319 specimens in 1 taxon.
Water temperature and chemistry ranges based on 223 samples.

Environmental ranges
  Depth range (m): 1.5 - 123
  Temperature range (°C): 14.667 - 20.207
  Nitrate (umol/L): 0.729 - 3.339
  Salinity (PPS): 35.336 - 37.969
  Oxygen (ml/l): 5.144 - 5.717
  Phosphate (umol/l): 0.091 - 0.674
  Silicate (umol/l): 1.178 - 6.203

Graphical representation

Depth range (m): 1.5 - 123

Temperature range (°C): 14.667 - 20.207

Nitrate (umol/L): 0.729 - 3.339

Salinity (PPS): 35.336 - 37.969

Oxygen (ml/l): 5.144 - 5.717

Phosphate (umol/l): 0.091 - 0.674

Silicate (umol/l): 1.178 - 6.203
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Depth: 0 - 90m.
Recorded at 90 meters.

Habitat: benthopelagic.
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Trophic Strategy

Inhabits chiefly Zostera seagrass beds but is also found on Posidonia beds and sandy bottoms, rarely on rocky bottoms. Carnivorous, feeds on worms, crustaceans, molluscs, echinoderms and hydrozoans.
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Life History and Behavior

Life Cycle

Normally sexes are separate but some individuals are protandrous. However, histological studies such as in Ref. 91314 confirms that 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.
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Diplodus annularis

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 23
Specimens with Barcodes: 26
Species With Barcodes: 1
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Barcode data: Diplodus annularis

The following is a representative barcode sequence, the centroid of all available sequences for this species.


No available public DNA sequences.

Download FASTA File
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Conservation

Threats

Not Evaluated
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Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: commercial; gamefish: yes
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