Pacific herring
...that the prolific spawning of the Pacific herring can lead to egg densities of six million eggs/m2 on submerged vegetation?
...that the prolific <a class="mw-redirect" href="./Spawning" id="mwAeI" rel="mw:WikiLink" title="Spawning">spawning</a> of the <b id="mwAeM"><a href="./Pacific_herring" id="mwAeQ" rel="mw:WikiLink" title="Pacific herring">Pacific herring</a></b> can lead to <a class="mw-redirect" href="./Egg_(biology)" id="mwAeU" rel="mw:WikiLink" title="Egg (biology)">egg</a> densities of six million eggs/m<sup id="mwAeY">2</sup> on submerged <a href="./Vegetation" id="mwAec" rel="mw:WikiLink" title="Vegetation">vegetation</a>?