** ADVANCE FOR WEEKEND, June 30-JULY 1 ** FILE** Biologist Steve Ebbert, left, first mate and captain Billy Pepper, deckhand John Ferris and Greg Siekaniec, manager of the Alaska Maritime National Wildlife Refuge, right, ride a rubber skiff from the U.S. Fish and Wildlife research ship Tiglax, background, to Aiktak Island, Alaska, Sept. 13. 2003. The research vessel, M/V Tiglax is celebrating 20 years of research. (AP Photo/Al Grillo)