Scaup Depredation on Arkansas Baitfish and Sportfish Aquaculture
Lesser scaup (Aythya affinis) and greater scaup (A. marila), hereafter scaup, consume a variety of aquatic invertebrates, plants, and occasionally small fish. Scaup have foraged on commercial aquaculture farms in the southern United States for decades. However, the types, abundance, and rate of fish...
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DigitalCommons@University of Nebraska - Lincoln
2021
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ftunivnebraskali:oai:digitalcommons.unl.edu:icwdm_usdanwrc-3473 2023-11-12T04:17:36+01:00 Scaup Depredation on Arkansas Baitfish and Sportfish Aquaculture Clements, Stephen A. Dorr, Brian S. Davis, J. Brian Roy, Luke A. Engle, Carole R. Hanson-Dorr, Katie C. Kelly, Anita M. 2021-09-01T07:00:00Z application/pdf https://digitalcommons.unl.edu/icwdm_usdanwrc/2479 https://digitalcommons.unl.edu/context/icwdm_usdanwrc/article/3473/viewcontent/Clements____Scaup_Depredation.pdf unknown DigitalCommons@University of Nebraska - Lincoln https://digitalcommons.unl.edu/icwdm_usdanwrc/2479 https://digitalcommons.unl.edu/context/icwdm_usdanwrc/article/3473/viewcontent/Clements____Scaup_Depredation.pdf USDA Wildlife Services - Staff Publications aquaculture Arkansas Aythya spp baitfish scaup sportfish wildlife damage management Animal Sciences Environmental Sciences Life Sciences Natural Resources and Conservation Natural Resources Management and Policy Other Environmental Sciences Other Veterinary Medicine Population Biology Terrestrial and Aquatic Ecology Veterinary Infectious Diseases Veterinary Medicine Veterinary Microbiology and Immunobiology Veterinary Preventive Medicine Epidemiology and Public Health Zoology text 2021 ftunivnebraskali 2023-10-30T12:04:58Z Lesser scaup (Aythya affinis) and greater scaup (A. marila), hereafter scaup, consume a variety of aquatic invertebrates, plants, and occasionally small fish. Scaup have foraged on commercial aquaculture farms in the southern United States for decades. However, the types, abundance, and rate of fish exploitation by scaup on baitfish and sportfish farms are not well documented. Thus, information is needed to understand how fish and other foods influence scaup use of aquatic resources, and any potential economic effects of depredation of fish. From November–March in winters 2016–2017 and 2017–2018, we conducted 1,458 pond surveys to estimate the abundance and distribution of scaup on Arkansas baitfish and sportfish farms that commercially produce species such as golden shiners (Notemigonus crysoleucas), fathead minnows (Pimephales promelas), goldfish (Carassius auratus), and sunfish (Lepomis spp.). We also collected and processed 531 foraging scaup and quantified the proportion of scaup consuming fish and the proportion of their diet obtained from fish. Fish consumption was highly variable between years. In our survey area, we estimated total fish consumption at 1,400 kg and 60,500 kg for winters 2016–2017 and 2017–2018, respectively. Sunfish ponds experienced the maximum loss (18,000 fish/ha) during winter 2017–2018, while goldfish ponds experienced a loss of just 2,600 fish/ha during the same winter. The estimates of baitfish and sportfish loss to scaup revealed potential management strategies for minimizing fish loss and can inform economic analysis of the financial impact of scaup on producers. Text greater scaup University of Nebraska-Lincoln: DigitalCommons@UNL Minnows ENVELOPE(-65.359,-65.359,-66.027,-66.027) |
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Open Polar |
collection |
University of Nebraska-Lincoln: DigitalCommons@UNL |
op_collection_id |
ftunivnebraskali |
language |
unknown |
topic |
aquaculture Arkansas Aythya spp baitfish scaup sportfish wildlife damage management Animal Sciences Environmental Sciences Life Sciences Natural Resources and Conservation Natural Resources Management and Policy Other Environmental Sciences Other Veterinary Medicine Population Biology Terrestrial and Aquatic Ecology Veterinary Infectious Diseases Veterinary Medicine Veterinary Microbiology and Immunobiology Veterinary Preventive Medicine Epidemiology and Public Health Zoology |
spellingShingle |
aquaculture Arkansas Aythya spp baitfish scaup sportfish wildlife damage management Animal Sciences Environmental Sciences Life Sciences Natural Resources and Conservation Natural Resources Management and Policy Other Environmental Sciences Other Veterinary Medicine Population Biology Terrestrial and Aquatic Ecology Veterinary Infectious Diseases Veterinary Medicine Veterinary Microbiology and Immunobiology Veterinary Preventive Medicine Epidemiology and Public Health Zoology Clements, Stephen A. Dorr, Brian S. Davis, J. Brian Roy, Luke A. Engle, Carole R. Hanson-Dorr, Katie C. Kelly, Anita M. Scaup Depredation on Arkansas Baitfish and Sportfish Aquaculture |
topic_facet |
aquaculture Arkansas Aythya spp baitfish scaup sportfish wildlife damage management Animal Sciences Environmental Sciences Life Sciences Natural Resources and Conservation Natural Resources Management and Policy Other Environmental Sciences Other Veterinary Medicine Population Biology Terrestrial and Aquatic Ecology Veterinary Infectious Diseases Veterinary Medicine Veterinary Microbiology and Immunobiology Veterinary Preventive Medicine Epidemiology and Public Health Zoology |
description |
Lesser scaup (Aythya affinis) and greater scaup (A. marila), hereafter scaup, consume a variety of aquatic invertebrates, plants, and occasionally small fish. Scaup have foraged on commercial aquaculture farms in the southern United States for decades. However, the types, abundance, and rate of fish exploitation by scaup on baitfish and sportfish farms are not well documented. Thus, information is needed to understand how fish and other foods influence scaup use of aquatic resources, and any potential economic effects of depredation of fish. From November–March in winters 2016–2017 and 2017–2018, we conducted 1,458 pond surveys to estimate the abundance and distribution of scaup on Arkansas baitfish and sportfish farms that commercially produce species such as golden shiners (Notemigonus crysoleucas), fathead minnows (Pimephales promelas), goldfish (Carassius auratus), and sunfish (Lepomis spp.). We also collected and processed 531 foraging scaup and quantified the proportion of scaup consuming fish and the proportion of their diet obtained from fish. Fish consumption was highly variable between years. In our survey area, we estimated total fish consumption at 1,400 kg and 60,500 kg for winters 2016–2017 and 2017–2018, respectively. Sunfish ponds experienced the maximum loss (18,000 fish/ha) during winter 2017–2018, while goldfish ponds experienced a loss of just 2,600 fish/ha during the same winter. The estimates of baitfish and sportfish loss to scaup revealed potential management strategies for minimizing fish loss and can inform economic analysis of the financial impact of scaup on producers. |
format |
Text |
author |
Clements, Stephen A. Dorr, Brian S. Davis, J. Brian Roy, Luke A. Engle, Carole R. Hanson-Dorr, Katie C. Kelly, Anita M. |
author_facet |
Clements, Stephen A. Dorr, Brian S. Davis, J. Brian Roy, Luke A. Engle, Carole R. Hanson-Dorr, Katie C. Kelly, Anita M. |
author_sort |
Clements, Stephen A. |
title |
Scaup Depredation on Arkansas Baitfish and Sportfish Aquaculture |
title_short |
Scaup Depredation on Arkansas Baitfish and Sportfish Aquaculture |
title_full |
Scaup Depredation on Arkansas Baitfish and Sportfish Aquaculture |
title_fullStr |
Scaup Depredation on Arkansas Baitfish and Sportfish Aquaculture |
title_full_unstemmed |
Scaup Depredation on Arkansas Baitfish and Sportfish Aquaculture |
title_sort |
scaup depredation on arkansas baitfish and sportfish aquaculture |
publisher |
DigitalCommons@University of Nebraska - Lincoln |
publishDate |
2021 |
url |
https://digitalcommons.unl.edu/icwdm_usdanwrc/2479 https://digitalcommons.unl.edu/context/icwdm_usdanwrc/article/3473/viewcontent/Clements____Scaup_Depredation.pdf |
long_lat |
ENVELOPE(-65.359,-65.359,-66.027,-66.027) |
geographic |
Minnows |
geographic_facet |
Minnows |
genre |
greater scaup |
genre_facet |
greater scaup |
op_source |
USDA Wildlife Services - Staff Publications |
op_relation |
https://digitalcommons.unl.edu/icwdm_usdanwrc/2479 https://digitalcommons.unl.edu/context/icwdm_usdanwrc/article/3473/viewcontent/Clements____Scaup_Depredation.pdf |
_version_ |
1782334422077407232 |