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Evaluating the effectiveness of drones for quantifying invasive upside-down jellyfish (Cassiopea sp.) in Lake Macquarie, Australia

Rowe, Claire E ; Figueira, Will F ; Kelaher, Brendan P ; Giles, Anna ; Mamo, Lea T ; Ahyong, Shane T ; Keable, Stephen J Anil, Arga Chandrashekar

PloS one, 2022-01, Vol.17 (1), p.e0262721-e0262721 [Periódico revisado por pares]

United States: Public Library of Science

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Título:
Evaluating the effectiveness of drones for quantifying invasive upside-down jellyfish (Cassiopea sp.) in Lake Macquarie, Australia
Autor: Rowe, Claire E ; Figueira, Will F ; Kelaher, Brendan P ; Giles, Anna ; Mamo, Lea T ; Ahyong, Shane T ; Keable, Stephen J
Anil, Arga Chandrashekar
Assuntos: Altitude ; Animal introduction ; Animals ; Animals, Wild ; Aquatic habitats ; Australia ; Behavior, Animal - physiology ; Biology and Life Sciences ; Boats ; Cassiopea ; Cnidaria ; Coastal fronts ; Control ; Drone aircraft ; Drones ; Earth Sciences ; Ecology and Environmental Sciences ; Ecosystem ; Environmental aspects ; Environmental Monitoring - economics ; Environmental Monitoring - instrumentation ; Environmental Monitoring - methods ; Environmental science ; Estuaries ; Estuarine ecosystems ; Evaluation ; Introduced Species - trends ; Jellyfishes ; Lakes ; Measurement ; Methods ; Monitoring ; Museums ; Physical Sciences ; Polls & surveys ; Scyphozoa - metabolism ; Temporal variability ; Unmanned Aerial Devices - ethics ; Water ; Wildlife management
É parte de: PloS one, 2022-01, Vol.17 (1), p.e0262721-e0262721
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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Competing Interests: The authors have declared that no competing interests exist.
These authors also contributed equally to this work.
Descrição: Upside-down jellyfish (Cassiopea sp.) are mostly sedentary, benthic jellyfish that have invaded estuarine ecosystems around the world. Monitoring the spread of this invasive jellyfish must contend with high spatial and temporal variability in abundance of individuals, especially around their invasion front. Here, we evaluated the utility of drones to survey invasive Cassiopea in a coastal lake on the east coast of Australia. To assess the efficacy of a drone-based methodology, we compared the densities and counts of Cassiopea from drone observations to conventional boat-based observations and evaluated cost and time efficiency of these methods. We showed that there was no significant difference in Cassiopea density measured by drones compared to boat-based methods along the same transects. However, abundance estimates of Cassiopea derived from scaling-up transect densities were over-inflated by 319% for drones and 178% for boats, compared to drone-based counts of the whole site. Although conventional boat-based survey techniques were cost-efficient in the short-term, we recommend doing whole-of-site counts using drones. This is because it provides a time-saving and precise technique for long-term monitoring of the spatio-temporally dynamic invasion front of Cassiopea in coastal lakes and other sheltered marine habitats with relatively clear water.
Editor: United States: Public Library of Science
Idioma: Inglês

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Evaluating the effectiveness of drones for quantifying invasive upside-down jellyfish (Cassiopea sp.) in Lake Macquarie, Australia

Rowe, Claire E ; Figueira, Will F ; Kelaher, Brendan P ; Giles, Anna ; Mamo, Lea T ; Ahyong, Shane T ; Keable, Stephen J Anil, Arga Chandrashekar

United States: Public Library of Science

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