When do fishes like eels travel from river to the sea?
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When they reach breeding size, eels change from 'yellow-bellies' to 'silver-bellies'. The yellow-grey underside becomes grey-white, the head shape changes and the head, back and pectoral fins darken. Shortfin males migrate in February–March, and longfin males in April.
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When they reach breeding size, eels change from 'yellow-bellies' to 'silver-bellies'. The yellow-grey underside becomes grey-white, the head shape changes and the head, back and pectoral fins darken. Shortfin males migrate in February–March, and longfin males in April.
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