| fishmotion {linbin} | R Documentation |
Fish Movements
Description
A pair of event tables (in a list) documenting the movements of tagged Coho Salmon (Oncorhynchus kisutch) in Bear Creek (Southwest Alaska, USA) for 29 July - 19 August 2008. Table motion lists individual fish residence time intervals in each of three stream regions, while table origin lists the study-wide residence time of each fish and the stream region in which the fish was first tagged.
Format
Two data frames motion and origin with 1,140 rows and 149 rows of 4 variables, respectively.
Details
from, to - start and end times as seconds since 1970-01-01 UTC (POSIXct)
fish.id - unique identifier for each fish
region - stream region (1 = 0 - 930 m, a cold downstream region with abundant and spawning sockeye salmon; 2 = 930 - 1360 m, a cold middle region with few if any sockeye salmon; 3 = > 1360 m, a warm upstream region where sockeye salmon were absent)
Source
Armstrong, J. B., D. E. Schindler, C. P. Ruff, G. T. Brooks, K. E. Bentley, and C. E. Torgersen. 2013. Diel horizontal migration in streams: juvenile fish exploit spatial heterogeneity in thermal and trophic resources. Ecology 94:2066-2075. DOI: doi: 10.1890/12-1200.1