Benjamin Carr, Ph.D. 👨🏻💻🧬<p><a href="https://hachyderm.io/tags/Overfishing" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Overfishing</span></a> has caused <a href="https://hachyderm.io/tags/cod" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>cod</span></a> to halve in <a href="https://hachyderm.io/tags/bodysize" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>bodysize</span></a> since 1990s, study finds<br><a href="https://hachyderm.io/tags/Scientists" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Scientists</span></a> have uncovered <a href="https://hachyderm.io/tags/genomic" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>genomic</span></a> evidence that intensive <a href="https://hachyderm.io/tags/fishing" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>fishing</span></a> has driven rapid <a href="https://hachyderm.io/tags/evolution" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>evolution</span></a> changes that have contributed to these fish roughly halving in average body length since the 1990s. The "shrinking" of cod, from median mature body length of 40cm in 1996 to 20cm in 2019, has a genetic basis and human activities have left a profound mark on the population's <a href="https://hachyderm.io/tags/DNA" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DNA</span></a>, the study concluded.<br> <a href="https://www.theguardian.com/environment/2025/jun/25/cod-shrinking-size-overfishing-study" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">theguardian.com/environment/20</span><span class="invisible">25/jun/25/cod-shrinking-size-overfishing-study</span></a></p>