A novel method for the rapid enumeration of planktonic salmon lice in a mixed zooplankton assemblage using fluorescence

Thompson, Cameron; Bron, James E.; Bui, Samantha; Dalvin, Sussie; Fordyce, Mark John; Norði, Gunnvør á; Skern‐Mauritzen, Rasmus

doi:10.1111/are.15750

Cited by 3 publications

(1 citation statement)

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“…Other studies, that focus on identifying and enumerating planktonic L. salmonis stages in plankton samples in the lab. Thompson et al [2] have investigated if a specific combination of excitation and emission filters would result in L. salmonis fluorescing, while suppressing fluorescence from non-target planktons. The results are described by an excitation and emission matrix.…”

Section: Introductionmentioning

confidence: 99%

Fluorescence for non-contact detection of living salmon lice on salmon skin

Bakke¹

2023

J. Eur. Opt. Society-Rapid Publ.

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This work presents a promising method for automatic non-contact detection and counting of salmon lice infested on salmon in an aquacultural farm setting. The method uses fluorescence from chitin in the visual part of spectrum to enhance the contrast between fish skin and salmon lice, and show that the fluorescence is even strong enough to give a live view of the digestive and reproduction system in live lice without use of staining dyes. The wavelengths used are compatible with an underwater measurement system.

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Section: Introductionmentioning

confidence: 99%

Fluorescence for non-contact detection of living salmon lice on salmon skin

Bakke¹

2023

J. Eur. Opt. Society-Rapid Publ.

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Rapid detection of salmon louse larvae in seawater based on machine learning

Zhang,

Bracke,

da Silva Torres

et al. 2024

Aquaculture

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Zooplankton community variability in the South Atlantic Bight (2015–2017)

López-Figueroa

Walters

Laureano-Rosario³

et al. 2023

Journal of Plankton Research

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In the South Atlantic Bight (SAB), responses of zooplankton communities to physical dynamics were evaluated monthly at two sites on the continental shelf offshore from Savannah, GA, USA, between December 2015 and December 2017. Zooplankton were collected in oblique net tows (202-μm). Samples were collected in two regions of the middle shelf: inner edge (Site 1: 25 m isobath, n = 22) and outer edge (Site 2: 40 m isobath, n = 21). Samples were also collected at a third site on the 40 m isobath, ~20 nm south of Site 2 in July and August 2016. Temperature, salinity and fluorescence data were recorded at each site. Overall, 57 taxa were identified with total abundances varying from 1 × 103 to 81 × 103 ind.m−3. Small copepods predominated; notably Paracalanus spp. The highest abundance was recorded in October 2016 at Site 1, following deep mixing induced by Hurricane Matthew. Interannual variability of zooplankton abundance was significant, with higher abundances in 2016 compared with 2017, reflecting higher river runoff in 2016. Samples from Site 3 yielded the largest Dolioletta gegenbauri bloom documented in the SAB. This 2-year time-series, for the first time, suggests that zooplankton communities on the SAB middle shelf region are significantly influenced by continental precipitation patterns.

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A novel method for the rapid enumeration of planktonic salmon lice in a mixed zooplankton assemblage using fluorescence

Cited by 3 publications

References 64 publications

Fluorescence for non-contact detection of living salmon lice on salmon skin

Fluorescence for non-contact detection of living salmon lice on salmon skin

Rapid detection of salmon louse larvae in seawater based on machine learning

Zooplankton community variability in the South Atlantic Bight (2015–2017)

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