Dart goby
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| Parioglossus marginalis Rennis & Hoese, 1985 |
The dart goby, Parioglossus marginalis, is a dartfish of the genus Parioglossus, found along the east coast of Australia and in a few isolated localities in Northland and Great Barrier Island, New Zealand, in low gradient wetlands and small, brackish, coastal streams. Their length is up to 40 cm.
The dart goby has only recently been discovered in New Zealand and it is not known how it arrived. Superficially, the dart goby resembles a bully. However, there is no gap between the two dorsal fins, and the scales are very tiny, almost invisible. The dart goby is also very small and slender.
Generally, members of the Parioglossus genus inhabit marine and estuarine waters. Laboratory tests have shown that the dart goby could tolerate fully fresh water for at least a fortnight.
Very little is known about the life history or ecology of the dart goby, either here or in Australia. The extent of its distribution within New Zealand is also unknown.
[edit] References
- "Parioglossus marginalis". FishBase. Ed. Ranier Froese and Daniel Pauly. March 2006 version. N.p.: FishBase, 2006.
- NIWA June 2006
