Habitat Restoration/Enhancement Fort Hall Reservation : 2001 Annual Report.

Moser, David C.

Shoshone-Bannock Tribes of the Fort Hall Reservation of Idaho

关键词: Fish Habitat Improvement - Idaho - Fort Hall Indian Reservation;    Sediments;    Stream Conservation - Idaho - Fort Hall Indian Reservation;    Monitoring;    Revegetation;   

DOI  :  10.2172/812370
RP-ID  :  DOE/BP-00006040-1
RP-ID  :  NONE
RP-ID  :  812370

美国|英语

来源: UNT Digital Library

【 摘 要 】

Habitat enhancement, protection and monitoring were the focus of the Resident Fisheries Program during 2001. Enhancement and protection included sloping, fencing and planting willows at sites on Diggie Creek, Clear Creek and Spring Creek. In addition, many previously constructed instream structures (rock barbs and wing dams) were repaired throughout the Fort Hall Indian Reservation (Reservation). In 2001, exclosure fences were erected on Diggie Creek (250 m barbed wire; (70 m jack), Wood Creek (500 m jack), Clear Creek (20 m jack), Ross Fork Creek (200 m jack), West Fork Creek (200 m jack)) and the Portneuf River (1 km barbed wire; 100 m jack). Jack and rail exclosure fences that had deteriorated over the past ten years were repaired at numerous areas throughout the Reservation. Physical sampling during 2001 included sediment and depth surveys (SADMS) in Big Jimmy Creek and Diggie Creek. SADMS, used to track changes in channel morphology and specifically track movements of silt through Bottoms stream systems were completed for eight and nine strata in the Big Jimmy and Diggie Creek, respectively. Baseline SADM data was collected in Diggie Creek to monitor the effects of bank sloping and revegetation on channel morphology and sediment levels through time. Water temperature was monitored (hourly) in Spring Creek, Clear Creek, Ross Fork Creek and Big Jimmy Creek. Biotic sampling included invertebrate sampling in the 200 and 300 series of Clear Creek. Fish population densities and biomass were sampled in Clear Creek 200 and 300 series. Sampling protocols were identical to methods used in past years. Numbers of fish in Clear Creek 300 series remained similar to 2000 while numbers of fish in Clear Creek 200 series dropped to near pre project levels. Salmonid fry densities were monitored near Broncho Bridge and were significantly higher than 2000. A mark-recapture study was initiated in spring 2001 to estimate numbers of spawning adults using the Head End of Spring Creek Mean catch rate by anglers on Bottoms streams increased from 0.55 in 2000 to 0.77 fish per hour in 2001. Numbers of fish 18 inches caught by anglers decreased from 0.41 in 2000 to 0.19 in 2001.