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Freshwater Anchovy

Thryssa scratchleyi (Ramsay & Ogilby 1886)

Diagnostic Description

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Belly with 19 + 12 = 31 keeled scutes from isthmus to anus. Maxilla short, only reaching to front border of pre-operculum; first supra-maxilla about two thirds of second. No dark blotches on nape or behind upper part of gill opening.
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Recorder
Crispina B. Binohlan
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Migration

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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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Crispina B. Binohlan
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Morphology

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Dorsal spines (total): 0; Dorsal soft rays (total): 12 - 13; Analspines: 0; Analsoft rays: 35 - 42
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Trophic Strategy

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Occurs in inshore waters (Ref. 75154). Possibly catadromous.
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Biology

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Inhabits streams and associated lagoons, in clear or turbid water; also in brackish estuaries (Ref. 44894). A riverine species reaching nearly 900 km up the Fly River, but also down to the estuary. Found in main river channels as well as smaller tributaries (Ref. 2847). It forms shoals in deeper water of lagoons. Breeding biology is poorly understood, but it seems likely that spawning takes place in fresh water as juveniles have been collected from the upper reaches of some Queensland rivers. The diet consists of small crustaceans, fishes, insects and some plant material (Ref. 44894). Piscivorous (at least as large adults), recorded as feeding on Clupeoides papuensis and Melanotaenia nigra in the Fly River. The only anchovy that is restricted to mainly freshwater habitats (Ref. 44894). The largest anchovy known so far.
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Crispina B. Binohlan
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Importance

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fisheries: subsistence fisheries
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Freshwater anchovy

provided by wikipedia EN

The freshwater anchovy (Thryssa scratchleyi) is a species of ray-finned fish in the family Engraulidae. It is endemic to Australia. Often mistaken for a minnow.

Environment

Thryssa scratchleyi is known to be found in brackish freshwaters of estuaries.[2]

Threats

Thryssa scratchleyi is recorded to serve no threats to humans, and it is a harmless species.[3]

Biology

Thryssa scratchleyi is recorded to be the largest anchovy known.[2]

References

  1. ^ Di Dario, F.; Hammer, M. (2019). "Thryssa scratchleyi". IUCN Red List of Threatened Species. 2019: e.T21855A2778626. doi:10.2305/IUCN.UK.2019-2.RLTS.T21855A2778626.en. Retrieved 17 November 2021.
  2. ^ a b "Freshwater Anchovy, Thryssa scratchleyi (Ramsay & Ogilby 1886)". Fishes of Australia. Retrieved 13 November 2013.
  3. ^ "Thryssa scratchleyi (Ramsay &. Ogilby, 1886) FRESHWATER ANCHOVY". Discover Life. Retrieved 13 November 2013.
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Freshwater anchovy: Brief Summary

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The freshwater anchovy (Thryssa scratchleyi) is a species of ray-finned fish in the family Engraulidae. It is endemic to Australia. Often mistaken for a minnow.

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