Footprints of Atlantification in the vertical distribution and diversity of gelatinous zooplankton in the Fram Strait (Arctic Ocean)

Mańko, Maciej K.; Głuchowska, Marta; Weydmann‐Zwolicka, Agata

doi:10.1016/j.pocean.2020.102414

Cited by 32 publications

(33 citation statements)

References 100 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…m −3 ± 1.133 ind. m −3 ; Figure 4) detected in this study, with the higher GZ numbers documented in the warmer, Atlantic water side of the AF and PF, is consistent with other records from the European Arctic (Mańko et al, 2020) and elsewhere in the world (e.g., Haberlin et al, 2019). When the front separates the dynamic shelf water from a warmer offshore water, more abundant GZ is usually found on the offshorefacing side of the front .…”

Section: Discussionsupporting

confidence: 92%

“…The overall number of species detected here is in line with previous works from the region (Zelickman, 1972;Mańko et al, 2015;Mańko et al, 2020). The fact that the central zone C harbored the most diverse GZ community could potentially be attributed to the large spatial extent of this zone, which encompassed not only purely oceanic ecosystems, but also a shallow shelf region under the influence of the Norwegian Coastal Current (Figures 1, 3).…”

Section: Discussionsupporting

confidence: 91%

“…Additional support for using the GZ, as a model system to study the ecology at the passive fronts, comes with the existence of a solid baseline of their diversity in the North Atlantic (Licandro et al, 2015;Hosia et al, 2017) and the European Arctic (Mańko et al, 2015;Ronowicz et al, 2015;Mańko et al, 2020). Unfortunately, the GZ is either completely absent from the local zooplankton time series, or the taxonomic resolution of their records is insufficient (Long et al, 2021), due to their fragile body structure that often damages when sampled harshly.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Oceanic Fronts Shape Biodiversity of Gelatinous Zooplankton in the European Arctic

Mańko

Merchel²,

Kwaśniewski³

et al. 2022

Front. Mar. Sci.

Self Cite

View full text Add to dashboard Cite

Oceanic fronts constitute boundaries between hydrologically distinct water masses and comprise one of the most productive regions of the world’s ocean. Fronts associated with density gradients (active fronts) profoundly structure planktonic communities in adjacent waters, but less is known about the impacts of density-compensated (passive) fronts. Two such fronts are found in the European Arctic, the Arctic Front (AF) and the Polar Front (PF), that both separate warmer and saltier, Atlantic water from the colder, but fresher Arctic water. As scrutinized research on the influence of passive fronts on zooplankton at large spatial and temporal scales had been lacking, we tackled the question of their role in maintaining distinct communities, employing globally unique, 12-year-long gelatinous zooplankton (GZ) and hydrological time series from the European Arctic. The GZ, owing to their fast reproductive cycles and passive dispersal, reflect particularly well the local environment. We therefore compared GZ communities between zones separated by the two fronts, disentangled their drivers, and analyzed community shifts occurring whenever front relocation occurred. We have identified fifteen GZ taxa, distributed among three distinct communities, specific for front-maintained zones, and selected the following taxa as indicators of each zone: W—west of the AF, within the Greenland Sea Gyre, Beroe spp.; C—central, in between the AF and the PF, Aglantha digitale; and E—east of the PF, in the West Spitsbergen Shelf Mertensia ovum. Taxonomic composition of these communities, and their specific abundance, persisted throughout time. We also showed that relocation of either front between the sampling years was subsequently followed by the restructuring of the GZ community. Our results indicate that passive oceanic fronts maintain distinct GZ communities, with probable limited exchange across a front, and provide a new perspective for the Arctic ecosystem evolution under progressing Atlantification.

show abstract

Section: Discussionsupporting

confidence: 92%

Section: Discussionsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Oceanic Fronts Shape Biodiversity of Gelatinous Zooplankton in the European Arctic

Mańko

Merchel²,

Kwaśniewski³

et al. 2022

Front. Mar. Sci.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Between the Mendeleev Ridge and Canada Basin, different currents from the Atlantic Ocean, Arctic shelves, and the Pacific Ocean converge during summer (McLaughlin et al, 2004;Aksenov et al, 2011;Bluhm et al, 2015). Each water mass has unique hydrographic features and zooplankton communities, e.g., tintinnids can act as indicator species of different water masses in the North Pacific (Kato and Taniguchi, 1993); gelatinous zooplankton can act as an indicator of atlantification in the North Atlantic (Mańko et al, 2020); and the tintinnid community structures vary in different water masses in the Southern Ocean (Liang et al, 2018(Liang et al, , 2019. As for tintinnids, an important component of microzooplankton, they are widely distributed in the Arctic Ocean (e.g., Dolan et al, 2014Dolan et al, , 2017Wang et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Planktonic Tintinnid Community Structure Variations in Different Water Masses of the Arctic Basin

Wang

et al. 2022

Front. Mar. Sci.

View full text Add to dashboard Cite

Information on tintinnid community structure variations in different water masses in the Arctic Basin is scarce. During the summer of 2020, tintinnid diversity and vertical distribution were investigated in the Arctic Ocean. A total of 21 tintinnid species were found in five water masses and each water mass had a unique tintinnid community structure. In the Pacific Summer Water (PSW), Salpingella sp.1 occupied the top abundance proportion (61.8%) and originated from the North Pacific. In the Remnant Winter Water (RWW), Acanthostomella norvegica occupied the top abundance proportion (85.9%) and decreased northward. In the Mixed Layer Water, Pacific Winter Water, and Atlantic-origin Water, Ptychocylis urnula had the highest abundance proportion (67.1, 54.9, and 52.2%, respectively). The high abundance distribution area of Salpingella sp.1 and A. norvegica were separated by the boundary of the Beaufort Gyre and Transpolar Drift. The above species could be indicator species of each water masses. The highest abundance proportion of Salpingella sp.1 contributes 81.9% to the dominance of 12–16 μm lorica oral diameter in the PSW, which indicated that the preferred food items of tintinnid were also getting smaller. The occurrence of North Pacific tintinnid in the PSW might be due to the increasing Pacific Inflow Water. Further studies are needed to explore the lasting period of this species and whether it can establish a local population under rapid Arctic warming progress.

show abstract

“…Furthermore, it may imply a shoaling of the AW layer, altered stratification, enhanced vertical mixing and loss of sea ice (Zhuravskiy et al 2012;Polyakov et al 2017;Asbjørnsen et al 2020). The changes in the physical environment have important regional implications, from increasing melting rates of glaciers (Luckman et al 2015;Holmes et al 2019) to profound changes in the structure and functioning of local fjord ecosystems (Berge et al 2005;Berge et al 2015;Łącka & Zajączkowski 2016;Vihtakari et al 2018;Hop et al 2019;Payne & Roesler 2019;Mańko et al 2020). In this study, the term 'Atlantification' is related to describing the spatial and temporal variabilities and patterns of the AW warming in different parts of Isfjorden, Grønfjorden and Billefjorden.…”

Section: Introductionmentioning

confidence: 99%

Warming of Atlantic Water in three west Spitsbergen fjords: recent patterns and century-long trends

2021

View full text Add to dashboard Cite

We investigated the recent warming of summer Atlantic Water in relation to the century-long trends in maximum temperature in three west Spitsbergen fjords: Isfjorden, Grønfjorden and Billefjorden. On the basis of repeated along-fjord transects in late summer 2003–2019, we found that the warming has been pronounced not only in the outer but also in the inner domain of Isfjorden, where the presence of waters of Atlantic origin was registered more frequently after 2011 compared to early 2000s. Furthermore, Atlantic waters occurred more frequently in the bottom layers in the inner part of the fjord. In all the investigated fjords, the year 2014 was the warmest and saltiest during the period 2003–2019, which is consistent with previous reports for other west Spitsbergen fjords. In 2014, the mean temperature and salinity in Isfjorden and Grønfjorden exceeded 4.9 °C and 34.7 (in Billefjorden, 4.0 °C and 34.67, respectively). With the new data for 2010–19, we extended the time-series of maximum Atlantic Water temperature in Isfjorden and Grønfjorden, covering 1912–2009, reported previously by Pavlov et al. 2013. For the period 1912–2019, the average long-term trend of Atlantic Water maximum temperature is 0.25 °C/decade and 0.22 °C/decade in the outer part of Isfjorden and Grønfjorden, respectively. In the first two decades of the 21st century, the warming trend is steeper compared to the 20th century, 0.78 °C/decade in Isfjorden and 0.56 °C/decade in Grønfjorden, highlighting the strength of the ongoing ‘Atlantification’ of west Spitsbergen fjords.

show abstract

Footprints of Atlantification in the vertical distribution and diversity of gelatinous zooplankton in the Fram Strait (Arctic Ocean)

Cited by 32 publications

References 100 publications

Oceanic Fronts Shape Biodiversity of Gelatinous Zooplankton in the European Arctic

Oceanic Fronts Shape Biodiversity of Gelatinous Zooplankton in the European Arctic

Planktonic Tintinnid Community Structure Variations in Different Water Masses of the Arctic Basin

Warming of Atlantic Water in three west Spitsbergen fjords: recent patterns and century-long trends

Contact Info

Product

Resources

About