Economidichthys trichonis

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

Bibliography

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	ACTINOPTERYGII	PERCIFORMES	GOBIIDAE

Scientific Name:

Economidichthys trichonis

Species Authority:

Economidis & Miller, 1990

Common Name/s:

English

–

Nanogoviós

Assessment Information [top]

Red List Category & Criteria:

Endangered B1ab(ii,iii)+2ab(ii,iii) ver 3.1

Year Published:

2006

Assessor/s:

Crivelli, A.J.

Reviewer/s:

Barbieri, R. & Kottelat, M. (Mediterranean Workshop, Dec. 2004)

Justification:
A common species, although its population status is unknown. It is restricted to two lakes (estimated extent of occurrence (EOO) <5,000 km², area of occupancy (AOO) <500 km²) which are suffering from eutrophication, loss of reed beds due to land reclamation, and lake level decline due to water extraction. The species distribution is treated as a single location due to the connection between the two lakes.

History:

1996	–	Vulnerable
1994	–	Rare (Groombridge 1994)
1990	–	Rare (IUCN 1990)

Geographic Range [top]

Range Description:	Restricted to Lake Trichonis and Lyssimachia in southwestern Greece.
Countries:	Native: Greece
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	Common in specific sites within the lakes. Maybe declining.
Population Trend:	Unknown

Habitat and Ecology [top]

Habitat and Ecology:	A lacustrine species. It is the smallest freshwater European teleost at maturity: 18 mm with a maximum length of 25 mm. It is a semelparous species dying just after spawning. The males provide parental care.
Systems:	Freshwater

Threats [top]

Major Threat(s):	Water pollution, water extraction (lake level now fluctuates), and potentially habitat impacts from bottom trawling.

Major Threat(s):

Water pollution, water extraction (lake level now fluctuates), and potentially habitat impacts from bottom trawling.

Conservation Actions [top]

Conservation Actions:	The integrated water resources management plan for the Trichonis Lake (developed in the framework of the Life - Nature '99 project entitled: 'Actions for the preservation of Calcareous fens in Trichonis lake') should be implemented in the area aiming to eliminate the present high water level fluctuations in the lake on both annual and monthly basis. This will decrease the environmental impacts from the water abstractions for irrigation during the dry period and will facilitate preservation of the ecologically important habitats, in the broader area.

Conservation Actions:

The integrated water resources management plan for the Trichonis Lake (developed in the framework of the Life - Nature '99 project entitled: 'Actions for the preservation of Calcareous fens in Trichonis lake') should be implemented in the area aiming to eliminate the present high water level fluctuations in the lake on both annual and monthly basis. This will decrease the environmental impacts from the water abstractions for irrigation during the dry period and will facilitate preservation of the ecologically important habitats, in the broader area.

Bibliography [top]

	Baillie, J. and Groombridge, B (editors and compilers). 1996. 1996 IUCN Red List of Threatened Animals. IUCN, Gland, Switzerland and Cambridge, UK. Bianco, P.G., Bullock, A.M., Miller, P.J. and Roubal, F.R. 1987. A unique teleost dermal organ in a new European genus of fishes (Teleostei: Gobioidei). Journal of Fish Biology 31: 797–803. Daoulas, C., Economou, A.N., Psarras, T. and Barbieri-Tseliki, R. 1993. Reproductive strategies and early development of three freshwater gobies. Journal of Fish Biology 42: 749–776. Dimitriou, E., Zacharias I. and Koussouris, Th. 2001. Water resources management plan for Trichonis lake catchment. Final Report. In: I. Zacharias & Th. Koussouris Actions for the protection of calcareous bogs/fens in Trichonis Lake. Technical Report, NCMR/IIW. Groombridge, B. (ed.). 1994. 1994 IUCN Red List of Threatened Animals. IUCN, Gland, Switzerland and Cambridge, UK. IUCN. 1990. 1990 IUCN Red List of Threatened Animals. IUCN, Gland, Switzerland and Cambridge, UK. IUCN. 2006. 2006 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 04 May 2006.

Baillie, J. and Groombridge, B (editors and compilers). 1996. 1996 IUCN Red List of Threatened Animals. IUCN, Gland, Switzerland and Cambridge, UK.

Bianco, P.G., Bullock, A.M., Miller, P.J. and Roubal, F.R. 1987. A unique teleost dermal organ in a new European genus of fishes (Teleostei: Gobioidei). Journal of Fish Biology 31: 797–803.

Daoulas, C., Economou, A.N., Psarras, T. and Barbieri-Tseliki, R. 1993. Reproductive strategies and early development of three freshwater gobies. Journal of Fish Biology 42: 749–776.

Dimitriou, E., Zacharias I. and Koussouris, Th. 2001. Water resources management plan for Trichonis lake catchment. Final Report. In: I. Zacharias & Th. Koussouris Actions for the protection of calcareous bogs/fens in Trichonis Lake. Technical Report, NCMR/IIW.

Groombridge, B. (ed.). 1994. 1994 IUCN Red List of Threatened Animals. IUCN, Gland, Switzerland and Cambridge, UK.

IUCN. 1990. 1990 IUCN Red List of Threatened Animals. IUCN, Gland, Switzerland and Cambridge, UK.

IUCN. 2006. 2006 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 04 May 2006.

Citation:	Crivelli, A.J. 2006. Economidichthys trichonis. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 25 May 2012.
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