June 8, 2009

Adult cutthroat trout in the Salt River watershed were tracked from September-October 2005 until August 2006 using implanted radio transmitters. The fish were caught in the main river stem, spent October-March largely sedentery in pools, started to move more in April and then increased May-June for the spawning season, when 44% of the 43 fish remained in Salt River in April 2006, 37% moved to mountain streams, and 19% into spring streams, almost all preferring streams with manmade pools and gravel-cobble riffles. The fish didn’t use streams that dewatered in the summer or were blocked by manmade barriers.

April 5, 2009

Of 612 Mediterranean Killifish caught in the Gulf of Gabès, Tunisia, 54 (8.8%) had deformed spines, and were 8 times more likely to be deformed when from polluted areas. Deformities occurred less frequently as size increased, more often in fish under 25mm long.