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Acanthobrama telavivensis
– Extinct in the Wild
Taxonomy
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Kingdom:
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ANIMALIA
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Phylum:
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CHORDATA
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Class:
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ACTINOPTERYGII
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Order:
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CYPRINIFORMES
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Family:
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CYPRINIDAE
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Scientific Name:
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Acanthobrama telavivensis
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Species Authority:
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Goren, Fishelson & Trewavas, 1973
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Assessment Information
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Red List Category & Criteria:
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EW ver 3.1 (2001)
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Year Assessed:
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2006
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Assessor/s:
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Crivelli, A.J.
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Evaluator/s:
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Goren, M., Bogutskaya, N., Erk’akan, F. & Karatash, A. (Mediterranean Workshop, Dec. 2004)
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Justification:
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Fifty years ago, the species was very abundant. There was a sharp decline between 1950 and 1970. Then the population was stable until 1999. Drought (in 1999) resulted in the riverine habitat disappearing and the population declined almost to extinction. The last remaining individuals were taken from the remnants of the river and bred in captivity. Two subpopulations now have been released (for conservation purposes) back into the wild from this captive stock. One subpopulation has not reproduced. It is not known if the other subpopulation has reproduced yet (surveys are required). Until it can be confirmed that the second subpopulation is breeding successfully in the wild, this species is assessed as Extinct in the Wild.
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Geographic Range
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Range Description:
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This species is restricted to the coastal rivers of Israel, excluding Kishon.
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Range Map:
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 (click for detailed map)
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Countries:
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Reintroduced:
Israel
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Population
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Population:
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Fifty years ago, the species was very abundant. There was a sharp decline between 1950 and 1970. Then the population was stable until 1999. In 1999 the population declined almost to extinction. A captive population was bred from individuals taken from two sites. Two populations have since been released back into the wild but it is not confirmed if at least one of these is successfully breeding.
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Habitat and Ecology
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Habitat and Ecology:
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A coastal river species.
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System:
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Freshwater
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List of Habitats:
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| 5.1 | Wetlands (inland) - Permanent Rivers/Streams/Creeks (includes waterfalls) |
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Threats
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Threats:
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Drought, water extraction and pollution are main threats.
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List of Threats:
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| 1.3.6 | Habitat Loss/Degradation - Extraction - Groundwater extraction (past) |
| 6.3.1 | Pollution (affecting habitat and/or species) - Water pollution - Agriculture (past) |
| 6.3.2 | Pollution (affecting habitat and/or species) - Water pollution - Domestic (past) |
| 7.1 | Natural disasters - Drought (past) |
| 9.1 | Intrinsic factors - Limited dispersal (past) |
| 9.9 | Intrinsic factors - Restricted range (past) |
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Conservation Actions
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Conservation Actions:
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No conservation measures in place in the wild. Captive population is held in an artificial situation (laboratory) based on stock taken from two rivers (M. Goren, pers. comm).
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List of Conservation Actions:
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| 1.2.1.2 | Policy-based actions - Legislation - Development - National level (needed) |
| 1.2.2.2 | Policy-based actions - Legislation - Implementation - National level (needed) |
| 3.2 | Research actions - Population numbers and range (in place, needed) |
| 3.3 | Research actions - Biology and Ecology (in place) |
| 3.4 | Research actions - Habitat status (in place, needed) |
| 3.5 | Research actions - Threats (in place) |
| 3.8 | Research actions - Conservation measures (needed) |
| 3.9 | Research actions - Trends/Monitoring (needed) |
| 4.2 | Habitat and site-based actions - Restoration (in place, needed) |
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Bibliography
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Bibliography:
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Gafny, S., Goren, M. and Gasith, A. 2000. Habitat condition and fish assemblage structure in a coastal Mediterranean stream (Yarqon, Israel) receiving domestic effluent. Hydrobiologia 422/423: 319–330. Goren, M. and Ortal, R. 1999. Biogeography, diversity and conservation of the inland water fish communities in Israel. Biological Conservation 89:1–9.
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