| Nemateleotris helfrichi | |
|---|---|
| |
Scientific classification
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Gobiiformes |
| Family: | Gobiidae |
| Genus: | Nemateleotris |
| Species: | N. helfrichi
|
| Binomial name | |
| Nemateleotris helfrichi
J. E. Randall &
G. R. Allen, 1973
| |
Nemateleotris helfrichi, Helfrich's Dartfish, is a species of dartfish native to the Pacific Ocean.
Description
They are small fishes that grow to a maximum length of 6 centimetres (2.4 in). [2] They have bright yellow head with purple forehead with purple and white shades on body. [3] They have 7 dorsal spines 28-31 dorsal soft rays and 1 anal spine 26-28 anal soft rays. [4]
Distribution and Habitat
They are present in the Pacific Ocean between latitudes 16°N and 28°S. Their range extends from Indonesia to Tuamotu Archipelago. They prefer deeper waters than other Nemateleotris. They are found swimming a few meters above the water bed. They are found at a depths between and are rarely found above 40 metres (130 ft). [4]
Diet
They are carnivorous. N. helfrichi mainly feed on zooplanktons, amphipods, copepods, small crustaceans and shrimp larvae. [5] They are said to lose their bright colour if their dietary requirements are not met. [6]
Behaviour
The species is monogamous and are usually found in pairs. [4] [7] They are territorial and will fight with conspecifics unless they are a pair. [3] [8] [9] The species is shy and hides in small caves when threatened. [9]
In the aquarium
Due to their bright colour they are very popular as a marine aquarium fish. They are also more delicate and rare form than other more common firefish species (as evidenced by their price) and should be kept by marine-aquarists of intermediate expertise or higher.
Name
The specific name honours Philip Helfrich, an Emeritus Director and Researcher, Hawaii Institute of Marine Biology ( University of Hawaii), and the director of the Eniwetok Marine Biological Laboratory, who collected some of the first specimens of this species. [10]
References
- ^ Greenfield, D.; Munroe, T.A. (2016). "Nemateleotris helfrichi". The IUCN Red List of Threatened Species. 2016: e.T69128541A69130393. doi: 10.2305/IUCN.UK.2016-3.RLTS.T69128541A69130393.en.
- ^ Lieske, E. and R. Myers, 1994. Collins Pocket Guide. Coral reef fishes. Indo-Pacific & Caribbean including the Red Sea. Harper Collins Publishers, 400 p.
- ^ a b Saltwater Aquarium Fish for Marine Aquariums: Firefish, Helfrichi
- ^ a b c Nemateleotris helfrichi, Helfrichs' dartfish : aquarium
- ^ Helfrichi Firefish, Species Profile, Hobbyist Guide, Care Instructions, Feeding and more.
- ^ Helfrich's Firefish, Helfrich's Dartfish - Nemateleotris helfrichi
- ^ Whiteman, E.A. and I.M. Côté, 2004. Monogamy in marine fishes. Biol. Rev. 79:351-375.
- ^ Tullock, John (2006). Saltwater Aquarium Models. Hoboken: John Wiley & Sons. ISBN 9780470119471.
- ^ a b FreshMarine.com - Helfrich's Firefish Goby - Nemateleotris helfrichi
- ^ Christopher Scharpf; Kenneth J. Lazara (14 July 2018). "Order GOBIIFORMES: Family GOBIIDAE (i-p)". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 17 August 2018.
| Nemateleotris helfrichi | |
|---|---|
|
| |
|
Scientific classification
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Gobiiformes |
| Family: | Gobiidae |
| Genus: | Nemateleotris |
| Species: | N. helfrichi
|
| Binomial name | |
| Nemateleotris helfrichi
J. E. Randall &
G. R. Allen, 1973
| |
Nemateleotris helfrichi, Helfrich's Dartfish, is a species of dartfish native to the Pacific Ocean.
Description
They are small fishes that grow to a maximum length of 6 centimetres (2.4 in). [2] They have bright yellow head with purple forehead with purple and white shades on body. [3] They have 7 dorsal spines 28-31 dorsal soft rays and 1 anal spine 26-28 anal soft rays. [4]
Distribution and Habitat
They are present in the Pacific Ocean between latitudes 16°N and 28°S. Their range extends from Indonesia to Tuamotu Archipelago. They prefer deeper waters than other Nemateleotris. They are found swimming a few meters above the water bed. They are found at a depths between and are rarely found above 40 metres (130 ft). [4]
Diet
They are carnivorous. N. helfrichi mainly feed on zooplanktons, amphipods, copepods, small crustaceans and shrimp larvae. [5] They are said to lose their bright colour if their dietary requirements are not met. [6]
Behaviour
The species is monogamous and are usually found in pairs. [4] [7] They are territorial and will fight with conspecifics unless they are a pair. [3] [8] [9] The species is shy and hides in small caves when threatened. [9]
In the aquarium
Due to their bright colour they are very popular as a marine aquarium fish. They are also more delicate and rare form than other more common firefish species (as evidenced by their price) and should be kept by marine-aquarists of intermediate expertise or higher.
Name
The specific name honours Philip Helfrich, an Emeritus Director and Researcher, Hawaii Institute of Marine Biology ( University of Hawaii), and the director of the Eniwetok Marine Biological Laboratory, who collected some of the first specimens of this species. [10]
References
- ^ Greenfield, D.; Munroe, T.A. (2016). "Nemateleotris helfrichi". The IUCN Red List of Threatened Species. 2016: e.T69128541A69130393. doi: 10.2305/IUCN.UK.2016-3.RLTS.T69128541A69130393.en.
- ^ Lieske, E. and R. Myers, 1994. Collins Pocket Guide. Coral reef fishes. Indo-Pacific & Caribbean including the Red Sea. Harper Collins Publishers, 400 p.
- ^ a b Saltwater Aquarium Fish for Marine Aquariums: Firefish, Helfrichi
- ^ a b c Nemateleotris helfrichi, Helfrichs' dartfish : aquarium
- ^ Helfrichi Firefish, Species Profile, Hobbyist Guide, Care Instructions, Feeding and more.
- ^ Helfrich's Firefish, Helfrich's Dartfish - Nemateleotris helfrichi
- ^ Whiteman, E.A. and I.M. Côté, 2004. Monogamy in marine fishes. Biol. Rev. 79:351-375.
- ^ Tullock, John (2006). Saltwater Aquarium Models. Hoboken: John Wiley & Sons. ISBN 9780470119471.
- ^ a b FreshMarine.com - Helfrich's Firefish Goby - Nemateleotris helfrichi
- ^ Christopher Scharpf; Kenneth J. Lazara (14 July 2018). "Order GOBIIFORMES: Family GOBIIDAE (i-p)". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 17 August 2018.