Using action cameras to estimate the abundance and habitat use of threatened fish in clear headwater streams:

Hannweg, B; Marr, S M; Bloy, Lesley E; Weyl, Olaf L F

Title: Using action cameras to estimate the abundance and habitat use of threatened fish in clear headwater streams:
Creator: Hannweg, B
Creator: Marr, S M
Creator: Bloy, Lesley E
Creator: Weyl, Olaf L F
Date Issued: 2020
Date: 2020
Type: text
Type: article
Identifier: http://hdl.handle.net/10962/148911
Identifier: vital:38785
Identifier: DOI: 10.2989/16085914.2019.1701404
Description: Snorkel and electrofishing surveys are the traditional baseline methods for fish surveys in clear headwater streams. However, action cameras provide a non-harmful alternative to monitor freshwater fish populations to develop informed conservation management initiatives. In this paper, estimates from photographs and videos from action cameras are compared with snorkel survey estimates of the density of a threatened endemic minnow species in a headwater stream, Eastern Cape, South Africa. Photograph-based relative abundances of fish summed over five microhabitats in each pool returned equivalent results to snorkel surveys, whereas the equivalent video-based abundance estimates were approximately 50% greater than the snorkel estimates. Therefore, photograph-derived estimates could be used as an alternative to snorkel surveys for fish population monitoring and habitat use studies in clear headwater streams.
Format: 7 pages
Format: pdf
Language: English
Relation: African Journal of Aquatic Science
Relation: Hannweg, B., Marr, S.M., Bloy, L.E. and Weyl, O.L.F., 2020. Using action cameras to estimate the abundance and habitat use of threatened fish in clear headwater streams. African Journal of Aquatic Science, pp.1-6.
Relation: African Journal of Aquatic Science volume number 1 6 May 2020 1727-9364
Rights: Publisher
Rights: Use of this resource is governed by the terms and conditions of the Taylor and Francis Online Terms and Conditions Statement (https://www.tandfonline.com/terms-and-conditions)

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Weyl, Olaf (Prof)

RU South African Institute for Aquatic Biodiversity (SAIAB)

RU Department of Ichthyology and Fisheries Science

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