2019
DOI: 10.1002/tafs.10198
|View full text |Cite
|
Sign up to set email alerts
|

Colonial Waterbird Predation and Angler Catch of Hatchery Rainbow Trout Stocked in Southern Idaho Fisheries

Abstract: The abundance of piscivorous colonial waterbirds such as double‐crested cormorants Phalacrocorax auritus and American white pelicans Pelecanus erythrorhynchos has increased dramatically in recent decades in North America, resulting in increased conflict between these birds and fisheries resources, which raises the need to quantify the effects of waterbird predation on fisheries. We estimated avian predation and angler use of two sizes of hatchery‐reared Rainbow Trout Oncorhynchus mykiss (250 mm and 300 mm on a… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
2

Citation Types

1
15
0

Year Published

2021
2021
2023
2023

Publication Types

Select...
5

Relationship

2
3

Authors

Journals

citations
Cited by 8 publications
(16 citation statements)
references
References 48 publications
1
15
0
Order By: Relevance
“…The observed difference in angler catch between standard and magnum catchables was unlikely to have been caused by other confounding factors. For example, individuals from both target length groups tested were presumed to be invulnerable to predation by piscivorous fishes (Yule et al 2000), and any effect of predation by avian predators was assumed to be equal between length groups (Walters et al 1997;Chiaramonte et al 2019). We found no difference in tag reporting rate between length groups, indicating that the difference in angler catch can be attributed to the angling process itself.…”
Section: Discussionmentioning
confidence: 70%
See 1 more Smart Citation
“…The observed difference in angler catch between standard and magnum catchables was unlikely to have been caused by other confounding factors. For example, individuals from both target length groups tested were presumed to be invulnerable to predation by piscivorous fishes (Yule et al 2000), and any effect of predation by avian predators was assumed to be equal between length groups (Walters et al 1997;Chiaramonte et al 2019). We found no difference in tag reporting rate between length groups, indicating that the difference in angler catch can be attributed to the angling process itself.…”
Section: Discussionmentioning
confidence: 70%
“…Depending on management objectives, multiple stocking events may be warranted in select fisheries to maintain adequate catch rates throughout the angling season. Catch rates of Rainbow Trout by recreational anglers may also be affected by the abundance of aquatic predators (Baldwin et al 2003), the presence and abundance of avian predators (Walters et al 1997;Chiaramonte et al 2019), and prey availability (Haddix and Budy 2005). In general, larger trout are better suited to avoid predation by piscivorous fish (e. g. Yule et al 2000), but growing hatchery fish to a larger size is accompanied with increased rearing costs (e.g., feed expenditures).…”
Section: Introductionmentioning
confidence: 99%
“…The observed difference in angler catch between standard and magnum catchables was unlikely to have been caused by other confounding factors. For example, individuals from both target length groups tested were presumed to be invulnerable to predation by piscivorous fi shes (Yule et al 2000 ), and any effect of predation by avian predators was assumed to be equal between length groups (Walters et al 1997 ;Chiaramonte et al 2019 ). We found no difference in tag reporting rate between length groups, indicating that the difference in angler catch can be attributed to the angling process itself.…”
Section: Discussionmentioning
confidence: 70%
“…Depending on management objectives, multiple stocking events may be warranted in select fi sheries to maintain adequate catch rates throughout the angling season. Catch rates of Rainbow Trout by recreational anglers may also be affected by the abundance of aquatic predators (Baldwin et al 2003 ), the presence and abundance of avian predators (Walters et al 1997 ;Chiaramonte et al 2019 ), and prey availability (Haddix and Budy 2005 ). In general, larger trout are better suited to avoid predation by piscivorous fi sh (e. g. Yule et al 2000 ), but growing hatchery fi sh to a larger size is accompanied with increased rearing costs (e.g., feed expenditures).…”
Section: Introductionmentioning
confidence: 99%
“…2016; Chiaramonte et al. 2019), including the Blackfoot River Yellowstone Cutthroat Trout fishery. Although pelican populations are robust throughout the United States, they remain of conservation focus and are federally protected under the Migratory Bird Treaty Act of 1918.…”
Section: Discussionmentioning
confidence: 99%