rnal-link">head</a></span><span class="op">(</span><span class="va">biodiv_df</span><span class="op">)</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span>               species_name pelagic min_z max_z</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 1   acanthocybium_solandri       1   -20     0</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 2    acantholabrus_palloni       0  -500   -30</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 3 acan