Common names:
Abzeln, Alse, Bajeckens
Occurrence:
native
Salinity:
brackish
Abundance:
scarce (very unlikely)
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Ref: Winkler, H.M., K. Skora, R. Repecka, M. Ploks, A. Neelov, L. Urho, A. Gushin and H. Jespersen, 2000
Importance:
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Ref:
Aquaculture:
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Ref:
Regulations:
restricted
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Ref: Spratte, S and U. Hartmann, 1998
Uses:
live export: yes;
Comments:
Found in coastal and inland waters of the North and Baltic Seas (Refs. 35387, 88187). Occurs regularly in the North Sea during winter (Ref. 89634); ascends the Rhine from the southern North Sea and is known to reach the Dutch-German border (Ref. 10541). Occurs in the Baltic Sea in coastal and EEZ waters, especially northeast of Ruegen Island, in the Pommeranian Bay and in the German part of the Szczecin Lagoon (Ref. 89635). Also Ref. 12255.
The status of the twaite shad assessed according to the latest national report for the habitats directive reporting period 2000-2006 was “unfavourable / inadequate” for the Atlantic biogeographic region (German North Sea) and “unfavourable / bad” for the Continental biogeographic region (German Baltic Sea) (Refs. 88158, 88160).
Extinct in the Baltic Sea (Ref. 88159).
Critically endangered in Mecklenburg-Western Pomerania (Ref. 88199).
Endangered in Lower Saxony (Ref. 88200).
Threats for twaite shads in the North and Baltic Seas due to human activities: obstructions in rivers, fisheries, chemical pollution, eutrophication, restocking, technical installations, channel deepening, sediment removal (Ref. 88171).
National Checklist:
Country Information:
https://www.cia.gov/library/publications/resources/the-world-factbook/geos/gm.html
National Fisheries Authority:
http://www.ble.de/index.cfm?8C712107D9244972B3C193AC1917DCE7#Handelsbezeichnungen
Occurrences:
OccurrencesPoint map
Main Ref:
Whitehead, P.J.P., 1985
National Database:
AGRDEU
> 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: Lacepède.
Environment: milieu / climate zone / depth range / distribution range
Οικολογία