Netherlands country information

Common names: Fint, Meivis
Occurrence: native
Salinity: brackish
Abundance: fairly common (chances are about 50%) | Ref: Nijssen, H. and S.J. de Groot, 1974
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information: httpss://www.cia.gov/library/publications/resources/the-world-factbook/geos/nl.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Whitehead, P.J.P., 1985
National Database:

Classificação / Names

Actinopterygii (peixes com raios nas barbatanas) > Clupeiformes (Herrings) > Clupeidae (Herrings, shads, sardines, menhadens) > Alosinae
Nomes comuns | Sinónimos | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

Сельдь-финта, Alose feinte, Saboga, ... more

Issue
5 subspecies known.

Referência principal

Whitehead, P.J.P. 1985. (Ref. 188)
Referências | Bibliografia | Coordenador | Colaboradores

Tamanho / Peso / Idade

Max length : 60.0 cm SL macho/indeterminado; (Ref. 35388); common length : 40.0 cm SL macho/indeterminado; (Ref. 2945); Peso máx. publicado: 1.5 kg (Ref. 188); Idade máx. registada: 25 anos (Ref. 556)

Length at first maturity
L_m 32.5 range ? - ? cm

Ambiente

; marinhas; Água doce; estuarina; anádromo (Ref. 51243); intervalo de profundidade 10 - 300 m (Ref. 10541)

Clima / Intervalo

Temperate, preferred 16°C (Ref. 107945); 70°N - 27°N, 25°W - 42°E

Distribuição

Northeast Atlantic: southern Iceland, British Isles and southern Norway to Morocco, including the Baltic, Mediterranean and Black Seas (Refs. 188, 26334, 51442). Several subspecies have been recognized based on the number of gill rakers and geographical location (Ref. 10541) and some have since been given species-status (Ref. 59043). Listed in Appendix III of the Bern Convention (2002). Listed in Annex II and V of the EC Habitats Directive (2007).
Países | Áreas FAO | Ecossistemas | Ocorrências | Introduções

Descrição breve

Espinhos dorsais (total): 4 - 6; Raios dorsais moles (total): 12-16; Espinhos anais 3-4; Raios anais moles: 16 - 22; Vértebras: 49 - 59. Diagnosis: Body somewhat compressed, moderately deep with depth at pectoral fin less than head length, scutes apparent along belly (Ref. 188). Upper jaw notched, lower jaw fitting into it; no teeth on vomer; gillrakers fairly short and stout, total 30 to 80, longer than gill filaments (Ref. 188). A dark spot posterior to gill opening, followed by 7 or 8 similar spots along flank, but sometimes faint or absent (Ref. 188, 40476). Alosa fallax resembles Alosa alosa, which has more and longer gillrakers and at most only 3 dark spots on flank (Ref. 188).

Amphihaline species (Ref. 51442), schooling and strongly migratory (Ref. 188). Adults are usually found in open waters along the coast (Refs. 59043, 89486); juveniles are usually found along estuaries and near the shore (Ref. 59043), possibly making vertical diurnal movements synchronized with the tides; they remain in estuaries for over one year (Ref. 89630). Migrates to major rivers to spawn; also reported to spawn in small rivers. Several landlocked (lake) non-migratory populations exist (Ref. 10541). Ichthyophagous, feeds on small fishes and crustaceans, the young taking the fry of herrings, sprats and gobies (Ref. 188, Ref. 51442). Females grow faster and are always larger than males of the same age (Ref. 10541). Very locally distributed due to pollution and impoundment of large rivers throughout Europe and most populations declined during the first decade of the 20th century, but seem to have stabilized at a low level since then (Ref. 59043). It has been suggested that members of the genus Alosa are hearing specialists with the American shad (Alosa sapidissima) having been found to detect and respond to sounds up to at least 180 kHz (Ref. 89631). This may aid in predator avoidance (e.g. cetaceans) (Ref. 89632). Hybridization between this species and the allis shad (Alosa alosa) has been reported from the Rhine (Ref. 89633) as well as rivers in France and Algeria (Ref. 10541). There is some evidence that indicates that shad hybrids may reproduce (Ref. 27567).

Categoria na Lista Vermelha da IUCN (Ref. 115185)

Preocupação menor (LC)

Ameaça para o homem

Harmless

Utilização humana

Pescarias: pouco comercial

Mais informação

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Referências
Aquacultura
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Processamento
Mass conversion

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Fontes da internet

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD₅₀ = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Nível Trófico (Ref. 69278)
4.0 ±0.4 se; Based on diet studies.

Resiliência (Ref. 69278)
Médio, tempo mínimo de duplicação da população 1,4 - 4,4 anos (K=0.21-0.38; tm=2-7; tmax=25; Fec>10,000)

Vulnerabilidade (Ref. 59153)
Moderate to high vulnerability (50 of 100)

Categoria de preço (Ref. 80766)
Low

Alosa fallax (Lacepède, 1803)