Difference between revisions of "Little Colorado River (LCR) Projects"
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==Spring and Fall LCR surveys (4 surveys/yr) [http://gcdamp.com/images_gcdamp_com/7/7a/VanHaverbeke_et_al_2017_USFWS_Mark_recapture_and_fish_monitoring_activies_in_the_LCR_2000-2016.pdf]== | ==Spring and Fall LCR surveys (4 surveys/yr) [http://gcdamp.com/images_gcdamp_com/7/7a/VanHaverbeke_et_al_2017_USFWS_Mark_recapture_and_fish_monitoring_activies_in_the_LCR_2000-2016.pdf]== | ||
− | *Uses hoopnets in the lower 13.57 river kilometers of the LCR | + | *Uses hoopnets in the lower 13.57 river kilometers of the LCR to generate marks and get recaptures |
*The LCR is divided into three contiguous reaches (Boulders, Coyote, and Salt) | *The LCR is divided into three contiguous reaches (Boulders, Coyote, and Salt) | ||
− | *Closed Chapman Petersen mark-recapture to estimate absolute abundance of ≥150 mm and ≥200 mm humpback chub | + | *Closed Chapman Petersen mark-recapture to estimate absolute abundance of ≥150 mm and ≥200 mm humpback chub (spring and fall) and age-0 humpback chub (40-99 mm) in the fall. |
*Catch per unit effort (CPUE) data = estimate relative abundance | *Catch per unit effort (CPUE) data = estimate relative abundance | ||
*The two spring mark-recapture efforts (generally during April and May) are aimed to coincide with the peak of humpback chub spawning in the LCR and provides an annual estimate of the spring spawning abundance. | *The two spring mark-recapture efforts (generally during April and May) are aimed to coincide with the peak of humpback chub spawning in the LCR and provides an annual estimate of the spring spawning abundance. |
Revision as of 17:06, 27 April 2017
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Spring and Fall LCR surveys (4 surveys/yr) [1]
Juvenile Chub Monitoring (JCM)
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