Filters: Contacts: {oldPartyId:17044} (X) > partyWithName: U.S. Geological Survey - ScienceBase (X) > partyWithName: Ecosystems (X) > partyWithName: Bob Gresswell (X)
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We initiated a project in 2011 to identify lake-wide movement patterns and spawning areas of invasive lake trout in Yellowstone Lake, WY. We implanted acoustic transmitters in lake trout and established a network of stationary telemetry receivers in Yellowstone Lake. Lake Trout tagged with acoustic transmitters (Vemco V - series) were tracked with stationary acoustic receivers (Vemco VR2W - 69 kHz) from 2011 to 2015. The number of active receivers ranged from 17 - 65 as short term goals of the project changed. Coordinates for each detection represent the location of the receiver reading the transmitter. Additionally, detection ranges can vary from apporximately 500 - 1200 meters (but see Vemco.com for more details)....
We tracked Lake Trout and a small number Yellowstone Cutthroat Trout using acoustic telemetry (Vemco VR2W - 69 kHz) receivers and transmitters (Vemco V- series) in Yellowstone Lake from 2011 to 2016. This data set consists of the fish taqgging and recapture information. In total, 470 Lake Trout and 21 Yellowstone Cutthroat Trout were tagged with transmitters. Transmitters were surgically implanted into fish greater 405 mm total length. Fish were captured via line sampleing, anesthetized with Aqui-S, and tagged within a few minutes of capture. After recovering in freshwater for no more than 10 minutes, all tagged fish were released into Yellowstone Lake. While limited, recaptured fish information was reported to...
We collected eggs from female Lake Trout during the fall of 2015 to assess the relationship between female Lake Trout size and the number of eggs produced by individual fish. All data were collected between 7 September and 8 October, 2015. We collected 325 Lake Trout, however, only 44 were females that had eggs held together in a skein. We found a positive correlation between female Lake trout size (length and weight) and the number of eggs produced per female.
The data set includes fish weight, gonad weight; and for a subset of individuals, histological stage of gonad development for Lake Trout caught in Yellowstone Lake, WY. Data were collected throughout the ice-free season of 2014.
These data show the placement of acoustic telemetry receivers in Yellowstone Lake between 2011 and 2015. Receivers were placed in the lake to record fish movement throught the year. This data release shows the coordinates, timing, and receiver ID for each for each receiver deployment.
These data show triangulated results from Vemco Positioning Systems (VPS; https://vemco.com/products/vps/) set in Yellowstone Lake, WY. The data consist of transmissions from acoustic transmitters placed in fish to 69 kHz receivers. Field data were sent to Vemco for processing (proprietary software) and processed to determine the triangluated results shared within this data set. The data provided show triangulated positions of Lake Trout within suspected spawaning locations in Yellowstone Lake. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
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