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Description |
Western Pacific: Taiwan, Hong Kong, Shanghai and Singapore.
Geographic Range [top]
Range Description: The Trewavas Croaker (Johnius trewavasae) is known from Singapore, Taiwan, Hong Kong and Shanghai. There are only a few known specimens of this species from disjunct localities.
Countries occurrence:
Native:
China; Hong Kong; Singapore; Taiwan, Province of China; Thailand
FAO Marine Fishing Areas:
Native:
Pacific – northwest; Pacific – western central
Additional data:
? Lower depth limit (metres): 40
Range Map: Click here to open the map viewer and explore range.
Population [top]
Population: There is no population information available for the Trewavas Croaker.
Current Population Trend: Unknown
Additional data:
? Population severely fragmented: No
Habitat and Ecology [top]
Habitat and Ecology: The Trewavas Croaker is found in shallow coastal waters to a maximum depth of 40 m. Like other croakers, this species feeds on small crustaceans, fish and other benthic organisms.
Systems: Marine
Generation Length (years): 1-2
Use and Trade [top]
Use and Trade: The Trewavas Croaker is of minor commercial importance to fisheries, as by-catch.
Threats [top]
Major Threat(s): The Trewavas Croaker is of minor commercial importance to fisheries, as by-catch.
Due to the coastal nature of this species, it is likely to be suffering localised declines from threats relating to water pollution and coastal development.
Conservation Actions [top]
Conservation Actions: There are no species-specific conservation measures in place for the Trewavas Croaker. However, it may occur in a number of marine protected areas. Further research is needed to determine the abundance of this species and how it may be impacted by threats such as pollution and incidental mortality through by-catch
Citation: Chao, N.L., McEachran, J., Sasaki, K. & Williams, J.T. 2010. Johnius trewavasae. The IUCN Red List of Threatened Species 2010: e.T155242A4755663. http://dx.doi.org/10.2305/IUCN.UK.2010-4.RLTS.T155242A4755663.en. Downloaded on 04 May 2017.
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