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Allis Shad Alosa alosa

A

-

-

EA, CEFAS, County Recorder

Twaite Shad Alosa fallax

A

-

-

EA, CEFAS, County Recorder

European Eel Anguilla anguilla

P

12

7

EA, CEFAS, angling organisations, County Recorder

Spined Loach Cobitis taenia

P

?

?

EA, NE, UEA, County Recorder

Burbot Lota lota

A

-

-

EA, NE, County Recorder

Smelt Osmerus eperlanus

A

-

-

Spp. Considered Extinct Present or absent in Norfolk

Spp. New to National BAP List No. of records in database

No. of 1km squares recorded since 1980

Possible other sources of data sets

Other survey work completed or in progress

Comments

A

-

-

EA, CEFAS, County Recorder

Recorded on the Norfolk fish list (Patterson, 1933) but no modern records. Internationally threatened. Large decline in stocks due to over-exploitation and declining water quality. Previously recorded in the Great and Little Ouse during the 18th and 19th Century. Considered extinct in Norfolk. New to national list of BAP priority species 2007 Recorded on the Norfolk fish list (Patterson, 1933) but no modern records. Declining – Pollution, over-exploitation, habitat loss and artificial river obstructions. Considered extinct in Norfolk. Recorded on the Norfolk fish list (Patterson, 1933) but no modern records. Declining – Pollution, over-exploitation, habitat loss and artificial river obstructions. Considered extinct in Norfolk. Greatly under recorded. Significantly declining across Europe – Over exploitation and increased incidence of parasitism/infection. New to national list of BAP priority species 2007

ANNEX 2: FRESHWATER FISH

FRESHWATER FISH

Species

Common Sturgeon Acipenser sturio

EA, UEA

Present in small populations, predominantly in tributaries of the Ouse system. Species is genetically unique to Britain. New to national list of BAP priority species 2007 NE Species Recovery Plan: Declared extinct in 1972. The species was still being consistently caught up to the 1920s.

Recorded on the Norfolk fish list (Patterson, 1933) but no modern records. Marked decline in UK – Over-exploitation. Considered extinct in Norfolk.

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