Aggregations Projects - Revision history

Cellsworth at 22:59, 10 December 2020

2020-12-10T22:59:50Z

2019-06-21T20:36:17Z

2017-06-06T19:58:41Z

2017-06-06T19:45:11Z

2017-04-27T18:05:41Z

2017-04-27T17:49:23Z

2017-04-27T17:42:43Z

2017-04-27T17:41:36Z

2017-04-27T17:35:15Z

2017-04-27T16:42:34Z

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 '''2019'''

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 '''2017'''

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-*'''Aggregation Sampling:''' 1 trip/year (reduced from two trips/year in FY13-14). Lead by USFWS.
+*'''Aggregation Sampling:''' Electrofishing at the 6 aggregation sites specified above since 2010. 1 trip/year (reduced from two trips/year in FY13-14). Lead by USFWS.
-*'''System Wide Electrofishing:'''  3 trips: 2 spring/summer, 1 in fall. Boat Electrofishing – near shore. Baited hoop nets and extended below Diamond to Pierce (new in 2016). Lead by AZDGF.
+*'''System Wide Electrofishing:''' Collect longterm monitoring data of native and nonnative fish outside of the LCR/NO reaches. 3 trips: 2 spring/summer, 1 in fall since 2000. Near shore electrofishing. New in 2016: Baited hoop nets and extended below Diamond to Pierce. Lead by AZDGF.
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-*'''Aggregation Sampling:'''
+*'''Aggregation Sampling:''' 1 trip/year (reduced from two trips/year in FY13-14). Lead by USFWS.
-*'''System Wide Electrofishing:'''  3 trips: 2 spring/summer, 1 in fall. Boat Electrofishing – near shore. Baited hoop nets and extended below Diamond to Pierce (new in 2016)
+*'''System Wide Electrofishing:'''  3 trips: 2 spring/summer, 1 in fall. Boat Electrofishing – near shore. Baited hoop nets and extended below Diamond to Pierce (new in 2016). Lead by AZDGF.
 |-

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 adults.” (Valdez and Ryel 1995)
-==There are eight recognized aggregations below Glen Canyon Dam:==
+==There are six recognized aggregations below Glen Canyon Dam: [https://pubs.usgs.gov/of/2016/1177/ofr20161177.pdf] ==
-*30 Mile
+*30 Mile (RM 29.8-36.3)
-*Little Colorado River inflow
+*Little Colorado River inflow (RM 57.0-77.2)
-*Bright Angel Creek inflow
+*Shinumo Creek inflow (RM 107.8-110.0)
-*Shinumo Creek inflow
+*Middle Granite Gorge (RM 125.0-129.7)
-*Stephen Aisle
+*Havasu Creek inflow (RM 155.8-159.2)
-*Middle Granite Gorge
+*Pumpkin Spring (RM 212.5-216.0)
-*Havasu Creek inflow (RM 157-160)
 *Pumpkin Spring (RM 212.5-216)
 Humpback chub are also caught outside of the aggregations. Samples are also being collected at:
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 *Fall Canyon (RM 210-212)
 *Bridge City (RM 237-244)
-*Spencer & Surprise (RM 245-249.5)
+*Spencer & Surprise (RM 245-249.5) [https://www.usbr.gov/uc/rm/amp/twg/mtgs/17jan26/AR12_Young.pdf]
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-=There have been substantial increases in the captures of humpback chub in aggregation sampling since 2014, particularly at the LCR, Havasu, Pumpkin Spring, and in Western Grand Canyon. =
+==There have been substantial increases in the captures of humpback chub in aggregation sampling since 2014, particularly at the LCR, Havasu, Pumpkin Spring, and in Western Grand Canyon. [https://www.usbr.gov/uc/rm/amp/twg/mtgs/17jan26/AR12_Young.pdf] [https://www.usbr.gov/uc/rm/amp/twg/mtgs/17jan26/AR21_Rogowski.pdf] ==
 [[Image:AggregationsCPUE.jpg|center|600px]] [https://www.usbr.gov/uc/rm/amp/twg/mtgs/17jan26/AR12_Young.pdf]
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 [[Image:SWEF hoopnetting.jpg|center|600px]] [https://www.usbr.gov/uc/rm/amp/twg/mtgs/17jan26/AR21_Rogowski.pdf]
 ==Immigration==

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 ==Immigration==
 Of 79 recaptures, Havasu & below (2014-2016):
 *8 moved down from Havasu (3 Pumpkin; 5 Fern Glen)
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 ==[http://gcdamp.com/index.php?title=TEMPERATURE Temperature:] consistently >19C in Western Grand Canyon [https://www.usbr.gov/uc/rm/amp/twg/mtgs/17jan26/AR12_Young.pdf]==
-*Humpback chub increases coincide with increases of [http://gcdamp.com/index.php?title=FISH flannelmouth sucker] [https://www.usbr.gov/uc/rm/amp/twg/mtgs/17jan26/AR12_Young.pdf]
+*Humpback chub increases coincide with increases of other native fish like [http://gcdamp.com/index.php?title=FISH flannelmouth sucker] [https://www.usbr.gov/uc/rm/amp/twg/mtgs/17jan26/AR12_Young.pdf]
 ==Local Recruitment==
-==[http://gcdamp.com/index.php?title=Translocation_Projects Translocations:] Population reaching a critical mass==
+==[http://gcdamp.com/index.php?title=Translocation_Projects Translocations:] Population may be reaching a critical mass==
 *[http://gcdamp.com/index.php?title=Translocation_Projects Havasu translocations]

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 </table>
+[[File:2016-03-08 14-21-00 pirated.jpg|center|300px‎]]
-−
-−
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 ! <h2 style="margin:0; background:#cedff2; font-size:120%; font-weight:bold; border:1px solid #a3bfb1; text-align:left; color:#000; padding:0.2em 0.4em;">Updates</h2>
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+[[Image:WGC CPUE.jpg|center|600px]] [https://www.usbr.gov/uc/rm/amp/twg/mtgs/17jan26/AR12_Young.pdf]
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+*System Wide Electrofishing:  3 trips: 2 spring/summer, 1 in fall. Boat Electrofishing – near shore. Baited hoop nets and extended below Diamond to Pierce (new in 2016)
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 '''2017'''
 *[https://www.usbr.gov/uc/rm/amp/twg/mtgs/17jan26/AR12_Young.pdf  Humpback Chub Aggregations ]
 *[https://doi.org/10.3133/ofr20161177  Persons et al. 2017. Colorado River fish monitoring in Grand Canyon, Arizona; 2002–14 humpback chub aggregations: U.S. Geological Survey Open-File Report 2016–1177, 43 p.]
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-'''The Aggregations:'''
-*30 Mile
-*Little Colorado River inflow
-*Bright Angel Creek inflow
-*Shinumo Creek inflow
-*Stephen Aisle
-*Middle Granite Gorge
-*Havasu Creek inflow
-*Pumpkin Spring
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+[http://gcdamp.com/index.php?title=Humpback_Chub_Page The Humpback Chub Page]
 |-