Overview

Comprehensive Description

Pomadasys incisus (Bowdich, 1825)

Mediterranean Sea : 14500-803 (1 spc.), October 2002 , Iskenderun Bay , trawl , C. Dalyan .

  • 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: 45-45, URL:http://www.zoobank.org/urn:lsid:zoobank.org:pub:428F3980-C1B8-45FF-812E-0F4847AF6786
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Biology

Found over hard bottom (Ref. 2683). Also found over sand. Feeds on bottom and near-bottom invertebrates (Ref. 5535).
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Distribution

Range Description

This species occurs in the Mediterranean, from the Strait of Gibraltar to Angola, including islands such as the Canary Islands and Madeira.
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Eastern Atlantic: Strait of Gibraltar to Angola, including islands. One reported occurrence in France (Ref. 4517).
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Mediterranean Sea, eastern Atlantic: Gibraltar (strays to Bay of Biscay) to Angola; offshore islands including Madeira.
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Physical Description

Size

Maximum size: 500 mm TL
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Max. size

50.0 cm TL (male/unsexed; (Ref. 6946)); max. reported age: 7 years (Ref. 52657)
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
Pomadasys incisus is a demersal species, found over sandy/ muddy and rocky bottoms mostly at a depth range of 10 to 50 m but recorded down to 100 m (Kent citation). It is found inshore in estuaries (Kapiris et al. 2008), harbours, to a couple of miles offshore. It feeds on near-bottom invertebrates. Pomadasys incisus is a non-seasonal spawner and breeding occurs year round; maturity is reached in approximately 2 years (Pajuelo et al. 2003).

Systems
  • Marine
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Environment

demersal; brackish; marine; depth range 10 - 100 m (Ref. 6946)
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Depth range based on 10 specimens in 1 taxon.
Water temperature and chemistry ranges based on 3 samples.

Environmental ranges
  Depth range (m): 7.5 - 62.1792
  Temperature range (°C): 17.167 - 24.179
  Nitrate (umol/L): 0.628 - 0.926
  Salinity (PPS): 36.052 - 37.582
  Oxygen (ml/l): 4.919 - 5.289
  Phosphate (umol/l): 0.112 - 0.164
  Silicate (umol/l): 1.095 - 3.150

Graphical representation

Depth range (m): 7.5 - 62.1792

Temperature range (°C): 17.167 - 24.179

Nitrate (umol/L): 0.628 - 0.926

Salinity (PPS): 36.052 - 37.582

Oxygen (ml/l): 4.919 - 5.289

Phosphate (umol/l): 0.112 - 0.164

Silicate (umol/l): 1.095 - 3.150
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Depth: 10 - 100m.
From 10 to 100 meters.

Habitat: demersal.
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Trophic Strategy

Inhabit hard bottoms. Also found over sand. Feeds on bottom and near-bottom invertebrates. Also in Ref. 37413.
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Pomadasys incisus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 1
Specimens with Barcodes: 10
Species With Barcodes: 1
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Barcode data: Pomadasys incisus

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

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2010

Assessor/s
Collette, B., Matsuura, K., Nelson, J., Dooley, J., Fritzsche, R. & Carpenter, K.

Reviewer/s
Collen, B., Richman, N., Beresford, A., Chenery, A. & Ram, M.

Contributor/s
De Silva, R., Milligan, H., Lutz, M., Batchelor, A., Jopling, B., Kemp, K., Lewis, S., Lintott, P., Sears, J., Wilson, P., Smith, J. & Livingston, F.

Justification
Pomadasys incisus is a fast growing species, that is widespread and at least very abundant in some parts of it range, particularly over rocky bottoms, and therefore considered Least Concern. However, it is considered overexploited, primarily as bycatch in the Canaries and Aegean and possibly overexploited elsewhere in trawl fisheries and therefore its population levels need to be closely monitored.
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Population

Population
Pomadasys incisus has been observed in relatviely high-density schools in the coastal waters of the Canarian Archipelago, and is considered to be among the 20 most abundant demersal species in the area (Pajuelo et al. 2003). Listed as one of the 5 most abundant fish species in underwater surveys of mostly rocky areas across the Canaries with the highest count of any species on one of the transects (Hajagos and Van Tassell (2001). This is a fast-growing short-lived species (Pajuelo et al 2003). A survey of the fisheries of the Canary Islands found that this species was in danger of recruitment-overfishing, as 45% of the individuals caught are below the breeding size (Pajuelo et al. 2003). In the Canary Islands an 80% reduction in non-exploited equilibrium rates are inferred from a growth-overfishing model. This rate of exploitation is difficult to interpret because exploited rates of decline are unknown in this type of soft-sediment trawling. Furthermore, this species is abundant over rocky bottoms in the Canary Islands at the same time as growth overfishing is reported. Abundant in parts of its range in the Mediterranean (Francour et al. Med Red List workshop assessment 2007). Kapiris et al (2008) indicate from anecdotal information from fishermen that this species is heavily exploited as by-catch in the Aegean sea. It is a thermophilic species that apparently is expanding its range into the northern Med because of increasing temperatures (Fehri-Bedoui and Gharbi 2008). This species is also caught in Angolan fisheries, though not at such high levels (Agostinho et al. 2005).

Population Trend
Unknown
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Threats

Major Threats
Pomadasys incisus has no current commercial value, but is taken as by-catch in trawl fisheries in the Aegean Sea and Canary Islands (Fehri-Bedoui and Gharbi 2008) and presumably also taken as by-catch in trawl fisheries throughout its range. Some landing reported in FAO statistics for the 1980s and 1990s indicate some commercial utilization. Most reports suggest that it is discarded, although it is retained and consumed in parts of its range. In Tunisia, it is caught by artisanal gears such as trammel and gill nets, beach and purse seines, long lines and trawls (Fehri-Bedoui and Gharbi 2008).
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Least Concern (LC)
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Management

Conservation Actions

Conservation Actions
There are no species-specific conservation measures in place for this species, however in places its distribution may coincide with marine protected areas. Further research and monitoring of the population and harvest levels of this species should be carried out. Conservation measures need to focus on minimising the by-catch of this species to prevent this species becoming threatened.
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Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: minor commercial; price category: medium; price reliability: very questionable: based on ex-vessel price for species in this family
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