Scaup Depredation on Arkansas Baitfish and Sportfish Aquaculture
ABSTRACT 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...
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crwiley:10.1002/wsb.1219 2024-06-02T08:07:10+00:00 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 http://dx.doi.org/10.1002/wsb.1219 https://onlinelibrary.wiley.com/doi/pdf/10.1002/wsb.1219 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/wsb.1219 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Wildlife Society Bulletin volume 45, issue 3, page 517-528 ISSN 2328-5540 2328-5540 journal-article 2021 crwiley https://doi.org/10.1002/wsb.1219 2024-05-03T11:19:16Z ABSTRACT 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. © 2021 The Wildlife Society. Article in Journal/Newspaper greater scaup Wiley Online Library Minnows ENVELOPE(-65.359,-65.359,-66.027,-66.027) Wildlife Society Bulletin 45 3 517 528 |
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collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
ABSTRACT 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. © 2021 The Wildlife Society. |
format |
Article in Journal/Newspaper |
author |
Clements, Stephen A. Dorr, Brian S. Davis, J. Brian Roy, Luke A. Engle, Carole R. Hanson‐Dorr, Katie C. Kelly, Anita M. |
spellingShingle |
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 |
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 |
Wiley |
publishDate |
2021 |
url |
http://dx.doi.org/10.1002/wsb.1219 https://onlinelibrary.wiley.com/doi/pdf/10.1002/wsb.1219 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/wsb.1219 |
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 |
Wildlife Society Bulletin volume 45, issue 3, page 517-528 ISSN 2328-5540 2328-5540 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/wsb.1219 |
container_title |
Wildlife Society Bulletin |
container_volume |
45 |
container_issue |
3 |
container_start_page |
517 |
op_container_end_page |
528 |
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1800752179779207168 |