black dogfish
... that discards from commercial fishing ships are a major food source for black dogfish in the northwestern Atlantic?
... that discards from <a href="./Commercial_fishing" id="mwFlU" rel="mw:WikiLink" title="Commercial fishing">commercial fishing</a> ships are a major food source for <b id="mwFlY"><a href="./Black_dogfish" id="mwFlc" rel="mw:WikiLink" title="Black dogfish">black dogfish</a></b> in the northwestern <a class="mw-redirect" href="./Atlantic" id="mwFlg" rel="mw:WikiLink" title="Atlantic">Atlantic</a>?