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Published byMonica Hodges Modified over 9 years ago
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My Fishy Journey Continues Morgan Brizendine DFP student at Mora National Fish Hatchery
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Journey Here B.S. in Fisheries Science with double minor in Biology and Watershed Management from Virginia Tech (2013)
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Journey Here STEP student at the Freshwater Mollusk Conservation Center at Virginia Tech (May 2011 – January 2013)
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Journey Here Conservation Career Symposium 2013 participant
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Journey Here M.S. in Natural Resources with concentration in Fisheries Conservation and Management at the University of Arizona
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DFP student at Mora National Fish Hatchery Daily feeding and fish poop cleaning Memorable first stocking trip
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Physical performance and condition of Gila trout reared in different hatchery environments Mora National Fish Hatchery Morgan Brizendine, Nate Wiese, and Jeff Conway
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Background Raceways – Low velocity – Hatchery standard Circular tanks – Barren and high velocity Fish exercised Lack of sensory cues in environment – Natural systems/Natural media Lower stress levels in fish Stimulates brain growth Better natural coloration, flight response, etc. http://www.fishwallpapers.com /wallpapers/gila-trout-pic.jpg
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Project Goal Determine the physical performance and condition of Gila trout fry reared in raceways and in circular tanks with either natural media or no media
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Methods 3 raceways with blue interiors and low velocity
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Methods 3 circular tanks with brown interiors and high velocity
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Methods 3 circular tanks with brown interiors and natural media
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Methods Daily – Water quality – Mortalities Weekly – Natural coloration – Fin condition Dorsal, anal, caudal fins – Fork length and weight
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Methods Bioimpedance – Estimate protein and fat content of fish Viscerosomatic Index, Hepatosomatic Index – Estimates fat content of fish
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Results
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Acknowledgements U.S. Fish and Wildlife Service Directorate Resource Assistant Fellows Program Student Conservation Association Mora National Fish Hatchery crew Drs. Kenneth Ostrand and Kyle Hanson
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