fish and macro-crustacean communities and their dynamics in the severn estuary.the species of fish and macro-crustacean living within the severn estuary are reviewed. the fish community is notably species rich and exceeds 100 species in total for the estuary. standardised long-term sampling at hinkley point in bridgwater bay gives a total complement of 83 for a single locality and this number is increasing by about one new species every two years. most of these new species are moving in from centres of population lying to the south of the estuary. almost all species of fis ...201020074757
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