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Alosa aestivalis  (Mitchill, 1814)

Blueback shad
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Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Alosa aestivalis   AquaMaps   Data sources: GBIF OBIS
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Image of Alosa aestivalis (Blueback shad)
Alosa aestivalis
Picture by Flescher, D.


country information

Common names: Aloza niebieska
Occurrence:
Salinity:
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information:
National Fisheries Authority:
Occurrences: Occurrences Point map
National Database:

Classificação / Names

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

Referência principal

Tamanho / Peso / Idade

Max length : 40.0 cm SL macho/indeterminado; (Ref. 7251); common length : 27.5 cm SL macho/indeterminado; (Ref. 188); Peso máx. publicado: 200.00 g (Ref. 7251); Idade máx. registada: 8 anos (Ref. 12193)

Ambiente

; marinhas; Água doce; estuarina; anádromos (Ref. 51243); intervalo de profundidade 5 - 55 m (Ref. 5951)

Clima / Intervalo

Subtropical, preferred 12°C (Ref. 107945); 41°N - 25°N, 84°W - 60°W (Ref. 188)

Distribuição

Western Atlantic: Cape Breton, Nova Scotia south to the St. John's River, Florida; also in lower parts of rivers.
Países | Áreas FAO | Ecossistemas | Ocorrências | Introduções

Descrição suscinta

Espinhos dorsais (total): 0; Raios dorsais (total): 15-20; Espinhos anais 0; Raios anais : 15 - 21; Vértebras: 47 - 53. Moderately compressed, belly with distinct keel of scutes. Upper jaw with a distinct notch; lower jaw rising steeply within mouth; minute teeth present at front of jaws (disappearing with age). Lower gill rakers 41 to 52 (fewer in fishes under 10 cm standard length), slender. Back dark blue, sometimes bluish-grey; a dark spot on shoulder (Ref. 188). Peritoneum black (Ref. 7251). Branchiostegal rays 7 (Ref. 4639).

Biologia     Glossário (p.ex. epibenthic)

Form schools and possibly wintering near the bottom and out from the coast, approaching the shore in the late spring. Feed on small fishes, copepods and small shrimps. Spawn in brackish- or freshwaters of rivers, arriving in coastal waters a month or so later than A. pseudoharengus (in April at Chesapeake Bay, apparently when the water is above 70° C and later further north). Eggs are essentially pelagic, demersal in still water (Ref. 4639). Larvae are found in fresh and brackish rivers (Ref. 4639). Juveniles leave fresh and brackish nursery grounds at about 5 cm, migrating downstream (Ref. 4639). Marketed mostly fresh and salted (Ref. 188). Parasites found are acanthocephalan and nematodes (Ref. 37032).

Status na Lista Vermelha da IUCN (Ref. 115185)

Perigo para os humanos

  Harmless



Uso pelos humanos

Pescarias: espécies comerciais

Mais informação

Idade/Tamanho
Crescimento
Comprimento-peso
Comprimento-comprimento
Frequências de comprimento
Morfometria
Morfologia
Larvas
Dinâmica larval
Recrutamento
Abundância
Referências
Aquacultura
Perfil para aquacultura
Estirpes
Genética
Frequência alélica
Hereditariedade
Doenças
Processamento
Mass conversion
Colaboradores
Fotos
Stamps, Coins
Sons
Ciguatera
Velocidade
Tipo de natação
Área branquial
Otólitos
Cérebros
Visão

Ferramentas

Relatórios especiais

Baixar XML

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)
3.8   ±0.3 se; Based on diet studies.

Resiliência (Ref. 69278)
Médio, tempo mínimo de duplicação da população 1,4 - 4,4 anos (K=0.18; tm=4; Fec=45,800)

Vulnerabilidade (Ref. 59153)
Moderate to high vulnerability (51 of 100)
Categoria de preço (Ref. 80766)
Low