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Fishing erodes natural size variation

Fishing erodes natural size variation

[unable to retrieve full-text content]Fishing typically removes the large individuals from the population. Over time, this not only leads to evolutionary shrinking of fish but it also erodes natural trait variability in fish stocks. This was demonstrated in a study where researchers experimentally harvested zebrafish. The loss of natural trait variability is an alarming observation, as variability facilitates population viability in changing environments.

Source: https://rss.sciencedaily.com/plants_animals/fisheries.xml