Harmon Brian S, Martin Dustin R, Chizinski Christopher J, Pope Kevin L
Nebraska Cooperative Fish and Wildlife Research Unit, and School of Natural Resources, University of Nebraska-Lincoln, Lincoln, NE, United States of America.
School of Natural Resources, University of Nebraska-Lincoln, Lincoln, NE, United States of America.
PLoS One. 2018 Jan 11;13(1):e0190745. doi: 10.1371/journal.pone.0190745. eCollection 2018.
We investigated the spatial and temporal relationship of catch rates and angler party location for two days following a publicly announced put-and-take stocking of rainbow trout (Oncorhynchus mykiss). Catch rates declined with time since stocking and distance from stocking. We hypothesized that opportunity for high catch rates would cause anglers to fish near the stocking location and disperse with time, however distance between angler parties and stocking was highly variable at any given time. Spatially explicit differences in catch rates can affect fishing quality. Further research could investigate the variation between angler distribution and fish distribution within a waterbody.
在公开宣布投放虹鳟(Oncorhynchus mykiss)进行放流捕捞后的两天里,我们调查了捕捞率与垂钓者群体位置之间的时空关系。捕捞率随着放流后的时间以及与放流点距离的增加而下降。我们推测,高捕捞率的机会会促使垂钓者在放流点附近捕鱼,并随着时间推移而分散,但在任何给定时间,垂钓者群体与放流点之间的距离变化很大。捕捞率在空间上的显著差异会影响钓鱼体验。进一步的研究可以调查水体中垂钓者分布与鱼类分布之间的差异。