Collecting zooplankton

Sameoto, D. D.; Wiebe, Peter H.; Runge, Jeffrey A.; Postel, L.; Dunn, John; Miller, Charles B.; Coombs, S. H.

doi:10.1016/b978-012327645-2/50004-9

Cited by 77 publications

(74 citation statements)

References 43 publications

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“…First, plankton samples can be collected regardless of weather conditions or availability of ship-time. Where nets are towed from ships or smaller research vessels, plankton samples can only be taken safely during certain sea surface conditions (Sameoto et al 2000), which can limit the spatial or temporal coverage of the original survey design (Skjoldal et al 2000). Second, depending on the flow speed of the water as it enters the seawater intake, some of the issues associated with net sampling, such as net avoidance, clogging, or extrusion might be reduced (Sameoto et al 2000).…”

Section: Discussionmentioning

confidence: 99%

“…1). While the mesh size of the PF might differ between desalination plants, if the mesh size is equal to or less than the 200 µm recommended for macrozooplankton (Sameoto et al 2000), then it could be considered as a candidate for a plankton sampling device.…”

Section: Discussionmentioning

confidence: 99%

“…Where nets are towed from ships or smaller research vessels, plankton samples can only be taken safely during certain sea surface conditions (Sameoto et al 2000), which can limit the spatial or temporal coverage of the original survey design (Skjoldal et al 2000). Second, depending on the flow speed of the water as it enters the seawater intake, some of the issues associated with net sampling, such as net avoidance, clogging, or extrusion might be reduced (Sameoto et al 2000). Finally, if there is a flow-meter immediately upstream of the PF, then the exact volume of seawater filtered can be determined, avoiding the need for the complex flow-meter calibrations required in traditional plankton net sampling (Sameoto et al 2000).…”

Section: Discussionmentioning

confidence: 99%

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Desalination plants as plankton sampling devices in temporal studies: proof‐of‐concept and suggestions for the future

Sewell¹,

Jury²

2009

Limnology & Ocean Methods

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Long-term records of zooplankton distribution and abundance are increasingly being used as indicators of climate change. The North Atlantic, because of the 80 years of Continuous Plankton Recorder (CPR) surveys, is well-represented with such time series. However, there are few long-term data sets from the Pacific Ocean and especially from Antarctica, where traditional plankton sampling is logistically challenging. Here we test an alternative sampling method, the primary filter (PF) of the Scott Base reverse-osmosis (RO) desalination plant, which had the same mesh size (100 µm) as our standard plankton tows. We show, by qualitative comparison to fresh plankton samples collected with a plankton net, that the PF collects a representative zooplankton community, does not damage delicate or fragile forms (e.g., appendicularians, ctenophores, medusae, chaetognaths, pteropods, polychaetes, embryos with intact fertilization membranes, pilidia, bipinnaria), and that the large volumes of seawater filtered allow collection of rare meroplankton members. We further show that seasonal changes can be detected in the zooplankton when PF samples are fixed in formalin for later analysis. Desalination plant PFs may provide an innovative solution to study temporal patterns in the Antarctic zooplankton and have the potential to provide long-term data sets from other poorly sampled regions.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Desalination plants as plankton sampling devices in temporal studies: proof‐of‐concept and suggestions for the future

Sewell¹,

Jury²

2009

Limnology & Ocean Methods

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“…-Large zooplankton such as euphausiids are fast swimmers (Vinogradov 1997) and may avoid small nets such as the MPS, which leads to considerable underestimation of the large size fraction when using standard mesozooplankton sampling gear (Sameoto et al 2000). In this survey, by studying vertical distribution patterns using two contrasting gears, we have attempted to broaden the outlook for larger zooplankton community.…”

Section: Discussionmentioning

confidence: 99%

“…Vinogradov 1997;Sameoto et al 2000). The key factors that affect the precision of samples include: diel vertical migration, sensory perception by the target species (noise, vision, pressure wakes), swimming capabilities of young versus mature individuals, and their feeding behaviours (Johnson and Fogarty 2013).…”

Section: Introductionmentioning

confidence: 99%

Characterisation of large zooplankton sampled with two different gears during midwinter in Rijpfjorden, Svalbard

Błachowiak‐Samołyk¹,

Zwolicki²,

Webster³

et al. 2017

Polish Polar Research

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During a midwinter cruise north of 80 o N to Rijpfjorden, Svalbard, the composition and vertical distribution of the zooplankton community were studied using two different samplers 1) a vertically hauled multiple plankton sampler (MPS; mouth area 0.25 m², mesh size 200 μm) and 2) a horizontally towed Methot Isaacs Kidd trawl (MIK; mouth area 3.14 m², mesh size 1500 μm). Our results revealed substantially higher species diversity (49 taxa) than if a single sampler (MPS: 38 taxa, MIK: 28) had been used. The youngest stage present (CIII) of Calanus spp. (including C. finmarchicus and C. glacialis) was sampled exclusively by the MPS, and the frequency of CIV copepodites in MPS was double that than in MIK samples. In contrast, catches of the CV-CVI copepodites of Calanus spp. were substantially higher in the MIK samples (3-fold and 5-fold higher for adult males and females, respectively). The MIK sampling clearly showed that the highest abundances of all three Thysanoessa spp. were in the upper layers, although there was a tendency for the larger-sized euphausiids to occur deeper. Consistent patterns for the vertical distributions of the large zooplankters (e.g. ctenophores, euphausiids) collected by the MPS and MIK samplers provided more complete data on their abundances and sizes than obtained by the single net. Possible 460mechanisms contributing to the observed patterns of distribution, e.g. high abundances of both Calanus spp. and their predators (ctenophores and chaetognaths) in the upper water layers during midwinter are discussed.

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Deep‐Sea Zooplankton Sampling

Christiansen

2016

Biological Sampling in the Deep Sea

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Collecting zooplankton

Cited by 77 publications

References 43 publications

Desalination plants as plankton sampling devices in temporal studies: proof‐of‐concept and suggestions for the future

Desalination plants as plankton sampling devices in temporal studies: proof‐of‐concept and suggestions for the future

Characterisation of large zooplankton sampled with two different gears during midwinter in Rijpfjorden, Svalbard

Deep‐Sea Zooplankton Sampling

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