Richard Hamblyn on how the life stages of the salmon are marked by words unchanged since Chaucer's time:
Born in a ‘redd’, a shallow, gravel-covered depression dug by the female in the days before spawning, newly hatched salmon begin life as ‘alevins’, tiny, buoyant creatures with their yolk sacs still attached. Once the yolk has been absorbed, the fast-growing fish, now known as ‘fry’, are able to feed for themselves, turning instinctively to face the current in order to graze on drifting insect larvae. Some months later, the juvenile salmon, now known as ‘parr’, move downstream to deeper water ...
Guest post: How the world’s rivers are releasing billions of tonnes of
‘ancient’ carbon
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The perception of how the land surface releases carbon dioxide (CO2)
typically conjures up images...
The post Guest post: How the world’s rivers are rele...
3 hours ago
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