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Teleostei (teleosts) > Clupeiformes (Herrings) > Alosidae (Shads and Sardines)
Etymology: Alosa: Latin, alausa = a fish cited by Ausonius and Latin, halec = pickle, dealing with the Greek word hals = salt; it is also the old Saxon name for shad = "alli" ; 1591 (Ref. 45335).
More on author: Regan.

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; pelagic-neritic. Temperate

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Europe: Endemic to Ireland.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 20.0 cm SL male/unsexed; (Ref. 59043); max. reported age: 5 years (Ref. 59043)

Short description Identification keys | Morphology | Morphometrics

This species is distinguished from its congeners entering the freshwater in Atlantic basin by having 43-53 thin gill rakers at about 15-20 cm SL (Ref. 59043).

Adults are pelagic in lacustrine areas (Ref. 59043). The females are larger than males. They spawn in June to July on gravel bars and gravelled shallows around large islands of the lake. Feed mainly on zooplankton. Population occupies a very small range and is threatened by eutrophication (Ref. 59043).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Kottelat, M., 1997. European freshwater fishes. An heuristic checklist of the freshwater fishes of Europe (exclusive of former USSR), with an introduction for non-systematists and comments on nomenclature and conservation. Biologia, Bratislava, 52/Suppl. 5:1-271. (Ref. 13696)

IUCN Red List Status (Ref. 130435)

Critically Endangered (CR) (B1ab(iii)); Date assessed: 01 January 2008

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: commercial

FAO - Publication: search | FishSource |

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Trophic ecology
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Ecology
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Anatomy
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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00794 (0.00370 - 0.01703), b=3.04 (2.87 - 3.21), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.6 ±0.4 se; based on size and trophs of closest relatives

Generation time: 1.8 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (14 of 100).

Alosa killarnensis Regan, 1916