Distribution and abundance of mesozooplankton in the Ross Sea, Antarctica

Smith, Walker O; DeLizo, Liza M.; Herbolsheimer, Courtney; Spencer, Erin

doi:10.1007/s00300-017-2149-5

Cited by 10 publications

(19 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Consequently, the copepod taxon was the main constituent of the January Ross Sea mesozooplankton community. Our taxa composition list corresponds well with those of previous studies, indicating that copepods are the main constituent of the mesozooplankton community in the region [9,13,18,33]. Additionally, M. gerlachei was the most dominant species, followed…”

Section: Discussionsupporting

confidence: 89%

“…and T. antarctica could have been underestimated in this study [34]. However, although the composition ratio differed according to the studies mainly affected by the mesh size of the plankton net used, the composition of mesozooplankton found in this study is similar to that of previous studies [13,15,20,35].…”

Section: Discussionsupporting

confidence: 74%

“…However, no surveys have covered the entire Ross Sea region, including the Ross Sea continental shelf and Terra Nova Bay. The previous surveys of mesozooplankton in the Ross Sea were primarily conducted around McMurdo Sound or Terra Nova Bay, which are located near the McMurdo stations and Mario Zucchelli station [12][13][14][15][16], and the western Ross Sea [17][18][19]. Furthermore, scientific surveys and monitoring programs in this region have been required since the Ross Sea was designated as a Marine Protected Area (MPA) in December 2017 [20,21].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Spatial Distribution Pattern of the Mesozooplankton Community in Ross Sea Region Marine Protected Area (RSR MPA) during Summer

Kim,

Son,

Kim

et al. 2024

Diversity

View full text Add to dashboard Cite

The Ross Sea region Marine Protected Area (RSR MPA) is one of the most productive regions in the Southern Ocean. Mesozooplankton intermediates the primary product to the higher predators, such as penguins and seals, in this ecosystem. In this study, the mesozooplankton community structure and spatial pattern in the RSR MPA in January were investigated by using 505 μm-mesh-size bongo net samples. As a result, 37 mesozooplankton taxa with a total mean abundance of 35.26 ind./m3, ranging from 2.94 to 139.17 ind./m3, were confirmed. Of the 37 taxa, 7 occupied almost 84% of the total abundance, with copepods being the main dominant taxa. As shown by our hierarchical analysis, the mesozooplankton community was divided into four groups, each associated with a specific geographical distribution. Group A was composed of stations around Terra Nova Bay and showed relatively low abundance. Group B included stations around the continental slope region. Group D was composed of the Ross Sea continental shelf stations, while group C consisted of stations geographically located between those of groups B and D. These four groups were influenced by various environmental factors, such as water temperature, salinity, and nutrients. In summary, the mesozooplankton community can be separated according to geographical pattern. This pattern is related to several environmental factors.

show abstract

Section: Discussionsupporting

confidence: 89%

Section: Discussionsupporting

confidence: 74%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Spatial Distribution Pattern of the Mesozooplankton Community in Ross Sea Region Marine Protected Area (RSR MPA) during Summer

Kim,

Son,

Kim

et al. 2024

Diversity

View full text Add to dashboard Cite

show abstract

“…The A4 area sub-system was different from the other areas showing a completely different arrangement of chemicals and biological variables (Bolinesi et al, 2020). Zooplankton is the most important factor in regulating food web dynamics and ecological interactions in the Ross Sea (Hopkins, 1987;Saino and Guglielmo, 2000;Ainley et al, 2010;Ainley et al, 2015;Minutoli et al, 2017;Smith et al, 2017;Kiko et al, 2020) with gelatinous zooplankton, comprising jellyfish, ctenophores and chordate tunicates (Pagès, 1997), showing a ubiquitous behavior (Richardson et al, 2009;Schaub et al, 2018;Verhaegen et al, 2021). Nonetheless, zooplankton abundance varies greatly over the continental shelf and its assemblages, beyond copepods, are mainly composed by fish larvae, euphausiids, hyperiid and gammarid amphipods, pteropods, chaetognaths, and ostracods (Guglielmo et al, 1990;Guglielmo et al, 1992;Hecq et al, 1992;Hunt et al, 2008;Stevens et al, 2015;Smith et al, 2017;Granata et al, 2022;Kim et al, 2022).…”

Section: Discussionmentioning

confidence: 99%

Vertical structure characterization of acoustically detected zooplankton aggregation: a case study from the Ross Sea

Barra,

Guglielmo,

Bonanno

et al. 2023

Front. Mar. Sci.

View full text Add to dashboard Cite

Acoustic data were collected by means of Simrad EK60 scientific echosounder on board the research vessel “Italica” in the Ross Sea during the 2016/2017 austral summer as part of the P-Rose and CELEBeR projects, within the framework of the Italian National Research Program in Antarctica (PNRA). Sampling activities also involved the collection of vertical hydrological profiles using the SBE 9/11plus oceanographic probe. Acoustic data were processed to extract three specific scattering structures linked to Euphausia superba, Euphausia crystallorophias and the so called Sound-Scattering Layers (SSLs; continuous and low-density acoustic structures constituted by different taxa). Four different sectors of the study area were considered: two southern coastal sectors (between the Drygalski Ice Tongue and Coulman Island), a northern sector (~30 nmi East of Cape Hallett) and an offshore one spanning about 2 degrees of latitude from Coulman Island south to the Drygalski Ice Tongue. The vertical structure of each group in each area was then analyzed in relation to the observed environmental conditions. Obtained results highlighted the presence of different vertical structures (both environmental and acoustic) among areas, except for the two southern coastal sectors that were found similar. GAM modelling permitted to evidence specific relationships between the environmental factors and the vertical distribution of the considered acoustic groups, letting to hypothesize the presence of trophic relationships and differences in SSL species composition among areas. The advantages of acoustic techniques to implement opportunistic monitoring strategies in endangered ecosystems are also discussed.

show abstract

“…Krill monitoring programs were initiated using net and acoustic methods in the late 1980s (Reiss et al, 2008;Fielding et al, 2014;Krafft et al, 2016). In the TNBP, a few studies have been conducted to understand the spatial distribution of krill biomass using either acoustic-based methods (Azzali and Kalinowski, 2000;Azzali et al, 2006;Leonori et al, 2017) or net sampling (Sala et al, 2002;Guglielmo et al, 2009;Smith et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Acoustic Detection of Krill Scattering Layer in the Terra Nova Bay Polynya, Antarctica

et al. 2020

View full text Add to dashboard Cite

Distribution and abundance of mesozooplankton in the Ross Sea, Antarctica

Cited by 10 publications

References 51 publications

Spatial Distribution Pattern of the Mesozooplankton Community in Ross Sea Region Marine Protected Area (RSR MPA) during Summer

Spatial Distribution Pattern of the Mesozooplankton Community in Ross Sea Region Marine Protected Area (RSR MPA) during Summer

Vertical structure characterization of acoustically detected zooplankton aggregation: a case study from the Ross Sea

Acoustic Detection of Krill Scattering Layer in the Terra Nova Bay Polynya, Antarctica

Contact Info

Product

Resources

About