Fisheries scientists are very discriminating as regards to their choice of information for their researches.
Since hard copies of fisheries journals are very costly, fisheries librarians resort to using free websties that can provide fulltext or abstracts of peer reviewed journals.
One such website is http://www.highwire.org.
This website provides fulltext articles from peer reviewed journals. Some of them of course are sold per article.
Another important website that provides free abstracts is http://www.sciencedirect.com.
There is another website which is very good for fisheries researchers and to those other researchers on the other sciences. Some articles provided in this website are in fulltext, the rest are abstracts. As far as I have searched, only scientific journals are included in the hits.
Try it: http://google.scholar.com