A European eel (Anguilla anguilla) case study using structured elicitation to estimate instream infrastructure passability for freshwater fishes
Conservation efforts are hampered by limited understanding about how different types of instream infrastructure impact migration patterns and fish survival. We used a rapid, fully online IDEA protocol to elicit expert judgments for the passability of seven different in-stream infrastructures to elve...
Published in: | Conservation Science and Practice |
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Wiley Open Access
2021
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Online Access: | https://orca.cardiff.ac.uk/id/eprint/142770/ https://doi.org/10.1111/csp2.485 https://orca.cardiff.ac.uk/id/eprint/142770/1/Thomas%20et%20al%20%282021%29%20European%20eel%20structured%20elicitation_csp2.485.pdf |
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ftunivcardiff:oai:https://orca.cardiff.ac.uk:142770 2023-05-15T13:27:05+02:00 A European eel (Anguilla anguilla) case study using structured elicitation to estimate instream infrastructure passability for freshwater fishes Thomas, Merryn Pawar, Sayali Januchowski-Hartley, Stephanie R. 2021-09-30 application/pdf https://orca.cardiff.ac.uk/id/eprint/142770/ https://doi.org/10.1111/csp2.485 https://orca.cardiff.ac.uk/id/eprint/142770/1/Thomas%20et%20al%20%282021%29%20European%20eel%20structured%20elicitation_csp2.485.pdf en eng Wiley Open Access https://orca.cardiff.ac.uk/id/eprint/142770/1/Thomas%20et%20al%20%282021%29%20European%20eel%20structured%20elicitation_csp2.485.pdf Thomas, Merryn https://orca.cardiff.ac.uk/view/cardiffauthors/A210776A.html orcid:0000-0001-8529-8245 orcid:0000-0001-8529-8245, Pawar, Sayali and Januchowski-Hartley, Stephanie R. 2021. A European eel (Anguilla anguilla) case study using structured elicitation to estimate instream infrastructure passability for freshwater fishes. Conservation Science and Practice 3 (9) , e485. 10.1111/csp2.485 https://doi.org/10.1111/csp2.485 file https://orca.cardiff.ac.uk/142770/1/Thomas%20et%20al%20%282021%29%20European%20eel%20structured%20elicitation_csp2.485.pdf doi:10.1111/csp2.485 cc_by CC-BY Article PeerReviewed 2021 ftunivcardiff https://doi.org/10.1111/csp2.485 2022-11-10T23:41:12Z Conservation efforts are hampered by limited understanding about how different types of instream infrastructure impact migration patterns and fish survival. We used a rapid, fully online IDEA protocol to elicit expert judgments for the passability of seven different in-stream infrastructures to elver European eels (Anguilla anguilla) in Great Britain. Nine experts provided judgments via our online survey, followed by a second elicitation via email for reflection and adjustment of initial estimates. We found that on average, bridges were judged the most passable (95% passability), followed by fords, nonperched culverts, weirs, sluices, dams, and perched culverts (7%). Results showed a high degree of agreement about how passable bridges and perched culverts are for elver eels, but less certainty about other infrastructure. Thirty-four distinct factors were identified that experts believed influence infrastructure passability for elver eels, including: the structure itself, hydraulics, elver characteristics, obstructions (e.g., debris accumulation), and vegetation (e.g., to aid climbing). We discuss how our rapid, online-only variation on the IDEA protocol compares with the more traditional protocol, and how the expert estimates generated in this study can be used in future scenario building and connectivity modeling, with a view to improving conservation to support species persistence. Article in Journal/Newspaper Anguilla anguilla European eel Cardiff University: ORCA (Online Research @ Cardiff) Conservation Science and Practice 3 9 |
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Cardiff University: ORCA (Online Research @ Cardiff) |
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ftunivcardiff |
language |
English |
description |
Conservation efforts are hampered by limited understanding about how different types of instream infrastructure impact migration patterns and fish survival. We used a rapid, fully online IDEA protocol to elicit expert judgments for the passability of seven different in-stream infrastructures to elver European eels (Anguilla anguilla) in Great Britain. Nine experts provided judgments via our online survey, followed by a second elicitation via email for reflection and adjustment of initial estimates. We found that on average, bridges were judged the most passable (95% passability), followed by fords, nonperched culverts, weirs, sluices, dams, and perched culverts (7%). Results showed a high degree of agreement about how passable bridges and perched culverts are for elver eels, but less certainty about other infrastructure. Thirty-four distinct factors were identified that experts believed influence infrastructure passability for elver eels, including: the structure itself, hydraulics, elver characteristics, obstructions (e.g., debris accumulation), and vegetation (e.g., to aid climbing). We discuss how our rapid, online-only variation on the IDEA protocol compares with the more traditional protocol, and how the expert estimates generated in this study can be used in future scenario building and connectivity modeling, with a view to improving conservation to support species persistence. |
format |
Article in Journal/Newspaper |
author |
Thomas, Merryn Pawar, Sayali Januchowski-Hartley, Stephanie R. |
spellingShingle |
Thomas, Merryn Pawar, Sayali Januchowski-Hartley, Stephanie R. A European eel (Anguilla anguilla) case study using structured elicitation to estimate instream infrastructure passability for freshwater fishes |
author_facet |
Thomas, Merryn Pawar, Sayali Januchowski-Hartley, Stephanie R. |
author_sort |
Thomas, Merryn |
title |
A European eel (Anguilla anguilla) case study using structured elicitation to estimate instream infrastructure passability for freshwater fishes |
title_short |
A European eel (Anguilla anguilla) case study using structured elicitation to estimate instream infrastructure passability for freshwater fishes |
title_full |
A European eel (Anguilla anguilla) case study using structured elicitation to estimate instream infrastructure passability for freshwater fishes |
title_fullStr |
A European eel (Anguilla anguilla) case study using structured elicitation to estimate instream infrastructure passability for freshwater fishes |
title_full_unstemmed |
A European eel (Anguilla anguilla) case study using structured elicitation to estimate instream infrastructure passability for freshwater fishes |
title_sort |
european eel (anguilla anguilla) case study using structured elicitation to estimate instream infrastructure passability for freshwater fishes |
publisher |
Wiley Open Access |
publishDate |
2021 |
url |
https://orca.cardiff.ac.uk/id/eprint/142770/ https://doi.org/10.1111/csp2.485 https://orca.cardiff.ac.uk/id/eprint/142770/1/Thomas%20et%20al%20%282021%29%20European%20eel%20structured%20elicitation_csp2.485.pdf |
genre |
Anguilla anguilla European eel |
genre_facet |
Anguilla anguilla European eel |
op_relation |
https://orca.cardiff.ac.uk/id/eprint/142770/1/Thomas%20et%20al%20%282021%29%20European%20eel%20structured%20elicitation_csp2.485.pdf Thomas, Merryn https://orca.cardiff.ac.uk/view/cardiffauthors/A210776A.html orcid:0000-0001-8529-8245 orcid:0000-0001-8529-8245, Pawar, Sayali and Januchowski-Hartley, Stephanie R. 2021. A European eel (Anguilla anguilla) case study using structured elicitation to estimate instream infrastructure passability for freshwater fishes. Conservation Science and Practice 3 (9) , e485. 10.1111/csp2.485 https://doi.org/10.1111/csp2.485 file https://orca.cardiff.ac.uk/142770/1/Thomas%20et%20al%20%282021%29%20European%20eel%20structured%20elicitation_csp2.485.pdf doi:10.1111/csp2.485 |
op_rights |
cc_by |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1111/csp2.485 |
container_title |
Conservation Science and Practice |
container_volume |
3 |
container_issue |
9 |
_version_ |
1766396346104807424 |