Overview

Comprehensive Description

Biology

Occur in coastal lagoons, rivers, streams, lakes, swamps and farm dams, but prefers riverine habitats (Ref. 26509, 44894). Usually found in deep waters of reservoirs well away from the shore. Mature adults undertake annual spawning migrations to oceanic waters (Ref. 44894). Mainly nocturnal feeders. Feed on crustaceans, mollusks, aquatic and terrestrial insects, fish including elvers and native trout. Maximum size for female longfin eel taken from Ref. 6390. A reasonably good angling fish which may grow to 22 kilograms (Ref. 44894).
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Distribution

Asia and Oceania: New Guinea, eastern Australia, including Tasmania, Lord Howe Island and New Caledonia.
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Asia and southwestern Pacific.
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Physical Description

Size

Maximum size: 2000 mm TL
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Max. size

165 cm TL (male/unsexed; (Ref. 82796)); 158 cm TL (female); max. published weight: 22.0 kg (Ref. 82796); max. reported age: 41 years (Ref. 6390)
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Diagnostic Description

Characterized by mottled color and tooth bands with a separated inner series. The only other species within its range with these characters is Anguilla marmorata, but that species has a longer dorsal fin (Ref. 9828).
  • Smith, D.G. 1999 Anguillidae. Freshwater eels. p. 1630-1636. In K.E. Carpenter and V.H. Niem (eds.) FAO species identification guide for fishery purposes. The living marine resources of the WCP. Vol. 3. Batoid fishes, chimaeras and bony fishes part 1 (Elopidae to Linophrynidae). FAO, Rome. (Ref. 9828)   http://www.fishbase.org/references/FBRefSummary.php?id=9828&speccode=1274 External link.
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Ecology

Habitat

Environment

demersal; catadromous (Ref. 51243); freshwater; brackish; marine; depth range 0 - 1 m (Ref. 57178)
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Depth range based on 1 specimen in 1 taxon.

Environmental ranges
  Depth range (m): 0.3 - 0.3
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Migration

Catadromous. Migrating from freshwater to the sea to spawn, e.g., European eels. Subdivision of diadromous. Migrations should be cyclical and predictable and cover more than 100 km.
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Trophic Strategy

Diadromous. They move fom marine to fresh waters as juveniles and return to the sea as adults. These eels live in a variety of freshwater and estuarine environments including coastal lagoons, rivers, creeks, swamps, lakes and farm dams (Ref. 26507). Longfin eels prefer riverine habitats (Ref. 26509). Glass eels enter estuaries mainly in summer and autumn. Mainly nocturnal feeders with a well developed sense of smell for locating prey. Diet includes crustaceans, molluscs, aquatic and terrestial insects (Ref. 26514), and bony fish (including elvers) (Ref. 26513, 26514). Feeding patterns follow the seasons - feeding is most intense at night during spring and summer (Ref. 2906).
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Diseases and Parasites

Edwardsiellosis. Bacterial diseases
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Anguilla reinhardtii

The following is a representative barcode sequence, the centroid of all available sequences for this species.


There are 3 barcode sequences available from BOLD and GenBank.  Below is a sequence of the barcode region Cytochrome oxidase subunit 1 (COI or COX1) from a member of the species.  See the BOLD taxonomy browser for more complete information about this specimen and other sequences.

GTGGCAATCACCCGTTGATTCTTTTCTACTAATCACAAAGACATTGGTACCCTATATCTAGTATTTGGTGCCTGAGCCGGAATAGTGGGGACCGCACTAAGCCTTCTCATCCGTGCCGAATTAAGTCAACCAGGCGCTCTTCTTGGAGATGACCAAATTTACAATGTCATCGTCACAGCGCATGCCTTTGTAATGATTTTCTTTATAGTAATACCAGTAATAATTGGAGGATTTGGCAACTGACTTGTACCCTTAATAATTGGCGCCCCGGACATAGCATTTCCCCGAATAAACAACATAAGCTTCTGACTTTTACCACCATCATTTCTTCTTTTACTAGCCTCCTCAGGGGTAGAAGCTGGGGCTGGAACAGGTTGAACTGTATATCCCCCTCTAGCTGGAAACTTAGCTCACGCCGGAGCATCTGTTGACCTAACAATTTTCTCACTCCACCTTGCAGGGATTTCATCAATCCTGGGAGCCATTAACTTTATCACTACAATTATTAACATGAAACCACCTGCCATCACACAATACCAAACTCCCCTGTTTGTATGAGCTGTTTTAGTAACCGCTGTTCTACTACTTCTATCCCTGCCAGTCCTAGCTGCAGGCATTACAATACTTCTAACCGACCGAAATTTAAATACAACCTTCTTCGACCCTGCAGGGGGCGGAGACCCAATCCTCTACCAACACCTATTCTGATTCTTTGGCCACCCAGAAGTATACATTTTAATCTTACCAGGATTTGGAATAATCTCACACATTGTTGCTTATTATTCCGGTAAAAAAGAACCGTTTGGGTACATAGGAATAGTCTGAGCAATAATGGCTATCGGACTTCTAGGATTCATTGTATGAGCACATCATATGTTCACAGTAGGAATAGACGTAGACACCCGTGCCTACTTCACTTCAGCCACAATAATCATCGCAATTCCAACTGGGGTAAAAGTATTCAGCTGATTAGCCACATTACACGGAGGAGCCGTCAAATGAGAAACCCCACTCCTTTGAGCTTTAGGCTTTATTTTCCTATTTACAGTAGGGGGTCTGACAGGTATCGTACTAGCAAACTCATCAATCGATATTGTATTACATGATACATACTATGTAGTAGCCCATTTCCATTATGTCCTATCCATAGGAGCCGTCTTCGCTATCATAGGAGGCTTTGTACACTGATTCCCCCTATTCTCAGGCTACACACTACACGACACATGAACCAAAGTACACTTTGGAATTATATTCGTAGGGGTAAACCTAACCTTCTTCCCACAACATTTCCTAGGACTAGCAGGAATACCACGACGCTATTCAGACTACCCAGATGCCTACACCCTATGAAACACAATCTCCTCTATTGGATCACTAATTTCTCTCACAGCCGTAGTCCTATTCCTATTTATCCTGTGAGAAGCATTCACTGCCAAACGAGAAGTAAAATGAGTAGAGCTTACAGAAACAAATGTTGAATGACTACACGGATGTCCTCCGCCATACCACACATTCGAAGAGCCAGCGTACGTCCGAGTTCAACCACCCTCAGATGACCAAAAATCAGAAGCCAAAGCCCACATTCAAGAAAGG
-- end --

Download FASTA File
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Statistics of barcoding coverage: Anguilla reinhardtii

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 4
Specimens with Barcodes: 7
Species With Barcodes: 1
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Conservation

Threats

Not Evaluated
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Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: commercial; aquaculture: commercial; gamefish: yes
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Wikipedia

Speckled longfin eel

The speckled longfin eel, Australian long-finned eel or marbled eel, Anguilla reinhardtii, is one of 15 species of eel in the family Anguillidae. It has a long snake-like cylindrical body with its dorsal, tail and anal fins joined to form one long fin. It usually has a brownish green or olive green back and sides with small darker spots or blotches all over its body. Its underside is paler.[1] It has a small gill opening on each side of its wide head, with thick lips.[1] It is Australia's largest freshwater eel, and the female usually grows much larger than the male.[1][2] It is also known as the spotted eel.

Distribution[edit]

The long-finned eel is a native of New Guinea, eastern Australia (including Tasmania), Lord Howe Island, and New Caledonia.[1] It can be found in many freshwater areas, including creeks, streams, rivers, swamps, dams, lagoons, and lakes although generally more often in rivers than lakes.[2]

Size and lifespan[edit]

Long-finned eels can grow to 1.6 metres and 22 kg (although generally to 1 metre) for females while males are much smaller at 650 mm and 600 g.[3] Landlocked eels have been reported to grow to 3 metres (10 feet).[2]

Breeding and migration[edit]

References[edit]

  1. ^ a b c Allen, G.R.; Midgley, S.H.; Allen, M. (2002). Freshwater Fishes of Australia. Perth: Western Australian Museum. p. 64. ISBN 0-7307-5486-3. 
  2. ^ a b c Merrick, J.R.; Schmida, G.E. (1984). Australian Freshwater Fishes, Biology and Management. Sydney: Author. pp. 61–63. ISBN 0-9591908-0-5. 
  3. ^ Robert McDowall, ed. (1996). Freshwater Fishes of South-Eastern Australia (Rev Ed). Sydney: Reed Books. pp. 42–43. ISBN 0-86622-936-1. 
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