Plankton in waters adjacent to the Laje de Santos state marine conservation park, Brazil: spatio-temporal distribution surveys

Bueno, Marília; Alberto, Samantha Fernandes; Carvalho, Renan; Costa, Tânia Márcia; Ciotti, Áurea Maria; Christofoletti, Ronaldo Adriano

doi:10.1590/s1679-87592017129006504

Cited by 5 publications

(3 citation statements)

References 27 publications

(23 reference statements)

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“…We observed higher zooplankton abundance and biovolume over the slope than the shelf and in offshore areas (Figure 2). These results contradict the typical coastaloceanic gradient, previously found in the study area (Bueno et al, 2017;Campelo et al, 2018;Santana et al, 2018) and elsewhere (Dai et al, 2016;Giering et al, 2018). Indeed it is typically assumed that zooplankton abundance follows a continuous gradient with higher abundance nearshore (Neumann-Leitão et al, 2008;Marcolin et al, 2013;Leitão et al, 2019).…”

Section: Spatial Patterns Of Zooplankton Abundance Biovolume Composition Size and Stable Isotope Ratioscontrasting

confidence: 72%

Body size and stable isotope composition of zooplankton in the western tropical Atlantic

Figueiredo

Schwamborn

Bertrand

et al. 2020

Journal of Marine Systems

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Size-based approaches are paramount tools for the study of marine food webs. Here, we investigated the relationship between zooplankton body size, stable isotope composition and trophic level (TL) along a large-scale onshore-offshore gradient in the western tropical Atlantic. Samples were obtained on the Brazilian continental shelf, slope and in oceanic waters (off Fernando de Noronha archipelago and Rocas Atoll) in September and October 2015. Zooplankton was sieved into five size fractions. Zooplankton was dominated by copepods, except for the largest (>2000 μm) size fraction, that showed a high biovolume of chaetognaths, decapods, and fish larvae. Maximum zooplankton abundance and biovolume was found at the continental slope. POM showed consistently lower δ13C than zooplankton, indicating a selective use of 13C-rich primary food sources by zooplankton. Particulate organic matter (POM) was more 13Cenriched in shelf areas (average: −22.8, −23.6 and − 24.3‰ at the shelf, slope and oceanic islands, respectively), probably due to the higher abundance of diatoms nearshore. POM had δ15N values between 2.5 and 6.9‰ (average: 4.0, 4.9 and 4.2‰ at the shelf, slope and oceanic islands, respectively). Zooplankton δ15N and TL increased with body size. The δ15N of the 200-500 μm size fraction was used as baseline for TL estimation. Oceanic areas (average baseline δ15N = 5.8‰ ± 0.52, n = 14) showed a higher baseline δ15N than the shelf (average = 3.9‰ ± 0.69, n = 9) and the slope areas (average = 3.1‰ ± 0.93, n = 9). In spite of differing baselines, the δ15N data produced a consistent pattern of log-linear increase in TL with increasing size, in all areas. The choice of input trophic enrichment factor (TEF) values only slightly changed the log10 (body size) vs TL slopes, but this choice had a considerable effect on the estimates of predator/prey size ratio (PPSR) and predator/prey mass ratio (PPMR). Using a TEF above 2.3 leads to unrealistic PPSR and PPMR estimates. Overall average slope was 0.59 ± 0.08 TL μm−1 with TEF = 2.3 and 0.42 ± 0.07 TL μm−1 with TEF = 3.2. Highlights► Maximum zooplankton abundance and biovolume was found at the continental slope. ► POM showed lower δ 13 C than zooplankton, indicating selective feeding. ► Zooplankton δ 15 N and trophic level increased with body size. ► Using a δ 15 N trophic enrichment factor above 2.3 leads to unrealistic estimates.

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Section: Spatial Patterns Of Zooplankton Abundance Biovolume Composition Size and Stable Isotope Ratioscontrasting

confidence: 72%

Body size and stable isotope composition of zooplankton in the western tropical Atlantic

Figueiredo

Schwamborn

Bertrand

et al. 2020

Journal of Marine Systems

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“…Copepoda were the most diverse group in all fractions, accounting for 93 species. This result is expected for the SWA tropical waters (Boltovskoy, 1981(Boltovskoy, , 1999Neumann-Leitão et al, 1999, 2008Lopes et al, 1999;Bueno et al, 2017). Highest Copepoda diversity were registered in the mesozooplankton fraction during this study and most of them were of small size.…”

Section: Discussionsupporting

confidence: 80%

“…These nutrients stimulate the phytoplankton growth, favoring most zooplankton species, which are characteristically herbivores or omnivores (Johnson and Allen, 2005). This pattern is commonly found in Continental shelves (Neumann-Leitão et al, 1999, 2008Dias et al, 2015;Bueno et al, 2017) and oceanic islands (Campelo et al, 2018;Santana et al, 2018) in Brazil and reflect the typical coast-ocean gradient.…”

Section: Discussionsupporting

confidence: 57%

Connectivity Between Coastal and Oceanic Zooplankton From Rio Grande do Norte in the Tropical Western Atlantic

et al. 2019

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Connectivity Between Coastal-Oceanic Zooplankton the reproduction and the trophic strategies were the main factors in structuring the community. We found a pelagic gradient for the zooplankton community varying from a low diverse eutrophic coastal area to a high diverse oligotrophic oceanic area, located over a varied, high biomass benthic habitat, which is mostly covered by calcareous algae functioning on the shallow shelf as a large reef system.

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Importance of integrating mixoplankton into marine ecosystem policy and management—Examples from the Marine Strategy Framework Directive

Anschütz,

Maselli,

Traboni

et al. 2024

Integr Envir Assess & Manag

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Marine plankton capable of photosynthesis and predation (“mixoplankton”) comprise up to 50% of protist plankton and include many harmful species. However, marine environmental management policies, including the European Union Marine Strategy Framework Directive (MSFD) and the USEPA, assume a strict dichotomy between autotrophic phytoplankton and heterotrophic zooplankton. Mixoplankton often differ significantly from these two categories in their response to environmental pressures and affect the marine environment in ways we are only beginning to understand. While the management policies may conceptually provide scope for incorporating mixoplankton, such action is rarely implemented. We suggest that the effectiveness of monitoring and management programs could benefit from explicit implementations regarding the ecological roles and impact of mixoplankton. Taking the MSFD as an example of marine management guidelines, we propose appropriate methods to explicitly include mixoplankton in monitoring and marine management. Integr Environ Assess Manag 2024;00:1–18. © 2024 The Authors. Integrated Environmental Assessment and Management published by Wiley Periodicals LLC on behalf of Society of Environmental Toxicology & Chemistry (SETAC).

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Plankton in waters adjacent to the Laje de Santos state marine conservation park, Brazil: spatio-temporal distribution surveys

Cited by 5 publications

References 27 publications

Body size and stable isotope composition of zooplankton in the western tropical Atlantic

Body size and stable isotope composition of zooplankton in the western tropical Atlantic

Connectivity Between Coastal and Oceanic Zooplankton From Rio Grande do Norte in the Tropical Western Atlantic

Importance of integrating mixoplankton into marine ecosystem policy and management—Examples from the Marine Strategy Framework Directive

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