Articles | Volume 20, issue 2
https://doi.org/10.5194/os-20-389-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-20-389-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Biophysical coupling of seasonal chlorophyll-a bloom variations and phytoplankton assemblages across the Peninsula Front in the Bransfield Strait
Marta Veny
Oceanografía Física y Geofísica Aplicada (OFYGA), ECOAQUA, Universidad de Las Palmas de Gran Canaria, Las Palmas, Canary Islands, 35017, Spain
Borja Aguiar-González
CORRESPONDING AUTHOR
Oceanografía Física y Geofísica Aplicada (OFYGA), ECOAQUA, Universidad de Las Palmas de Gran Canaria, Las Palmas, Canary Islands, 35017, Spain
Ángeles Marrero-Díaz
Oceanografía Física y Geofísica Aplicada (OFYGA), ECOAQUA, Universidad de Las Palmas de Gran Canaria, Las Palmas, Canary Islands, 35017, Spain
Tania Pereira-Vázquez
Oceanografía Física y Geofísica Aplicada (OFYGA), ECOAQUA, Universidad de Las Palmas de Gran Canaria, Las Palmas, Canary Islands, 35017, Spain
Ángel Rodríguez-Santana
Oceanografía Física y Geofísica Aplicada (OFYGA), ECOAQUA, Universidad de Las Palmas de Gran Canaria, Las Palmas, Canary Islands, 35017, Spain
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Cited articles
Aracena, C., González, H. E., Garcés-Vargas, J., Lange, C. B., Pantoja, S., Muñoz, F., Teca, E., and Tejos, E.: Influence of summer conditions on surface water properties and phytoplankton productivity in embayments of the South Shetland Islands, Polar Biol., 41, 2135–2155, https://doi.org/10.1007/s00300-018-2338-x, 2018.
Arrigo, K. R., Worthen, D., Schnell, A., and Lizotte, M. P.: Primary production in Southern Ocean waters, J. Geophys. Res.-Oceans, 103, 15587–15600, https://doi.org/10.1029/98JC00930, 1998.
Baird, M. E., Timko, P. G., Middleton, J. H., Mullaney, T. J., Cox, D. R., and Suthers, I. M.: Biological properties across the Tasman Front off southeast Australia, Deep-Sea Res. Pt. I, 55, 1438–1455, 2008.
Basterretxea, G. and Arístegui, J.: Phytoplankton biomass and production during late austral spring (1991) and summer (1993) in the Bransfield Strait, Polar Biol., 21, 11–22, https://doi.org/10.1007/s003000050328, 1999.
Berdalet, E., Vaqué, D., Arin, L., Estrada, M., Alcaraz, M., and Fernández, J. A.: Hydrography and biochemical indicators of microplankton biomass in the Bransfield Strait (Antarctica) during January 1994, Polar Biol., 17, 31–38, https://doi.org/10.1007/s003000050102, 1997.
Brown, M. S., Munro, D. R., Feehan, C. J., Sweeney, C., Ducklow, H. W., and Schofield, O. M.: Enhanced oceanic CO2 uptake along the rapidly changing West Antarctic Peninsula, Nat. Clim. Change, 9, 678–683, https://doi.org/10.1038/s41558-019-0552-3, 2019.
C3S (Copernicus Climate Change Service): Climate Data Store (CDS), https://cds.climate.copernicus.eu/ (last access: 12 March 2022), 2024.
Canny, J.: A computational approach to edge detection, IEEE T. Pattern Anal., 6, 679–698, https://doi.org/10.1109/TPAMI.1986.4767851, 1986.
Catalán, I. A., Morales-Nin, B., Rotllant, G., Palomera, I., and Emelianov, M.: Environmental influences on zooplankton and micronekton distribution in the Bransfield Strait and adjacent waters, Polar Biol., 31, 691–707, https://doi.org/10.1007/s00300-008-0408-1, 2008.
Chisholm, S. W. and Morel, F. M.: What controls phytoplankton production in nutrient-rich areas of the open sea?, Limnol. Oceanogr., 36, 1507–1511, 1991.
Comiso, J. C., Maynard, N. G., Smith Jr., W. O., and Sullivan, C. W.: Satellite ocean color studies of Antarctic ice edges in summer and autumn, J. Geophys. Res.-Oceans, 95, 9481–9496, https://doi.org/10.1029/JC095iC06p09481, 1990.
Cook, A. J., Holland, P. R., Meredith, M. P., Murray, T., Luckman, A., and Vaughan, D. G.: Ocean forcing of glacier retreat in the western Antarctic Peninsula, Science, 353, 283–286, https://doi.org/10.1126/science.aae0017, 2016.
Copernicus: Copernicus Marine Service, https://marine.copernicus.eu/ (last access: 16 February 2023), 2024.
Corzo, A., Rodríguez-Gálvez, S., Lubian, L., Sobrino, C., Sangrà, P., and Martínez, A.: Antarctic marine bacterioplankton subpopulations discriminated by their apparent content of nucleic acids differ in their response to ecological factors, Polar Biol., 29, 27–39, https://doi.org/10.1007/s00300-005-0032-2, 2005.
Costa, R. R., Ferreira, A., de Souza, M. S., Tavano, V. M., Kerr, R., Secchi, E. R., Brotas, V., Dotto, T. S., Brito, A. C., and Mendes, C. R. B.: Physical-biological drivers modulating phytoplankton seasonal succession along the Northern Antarctic Peninsula, Environ. Res., 231, 116273, https://doi.org/10.1016/j.envres.2023.116273, 2023.
Dotto, T. S., Mata, M. M., Kerr, R., and Garcia, C. A. E.: A novel hydrographic gridded data set for the northern Antarctic Peninsula, Earth Syst. Sci. Data, 13, 671–696, https://doi.org/10.5194/essd-13-671-2021, 2021.
Ducklow, H. W., Erickson, M., Kelly, J., Montes-Hugo, M., Ribic, C. A., Smith, R. C., Stammerjohn, S. E., and Karl, D. M.: Particle export from the upper ocean over the continental shelf of the west Antarctic Peninsula: A long-term record, 1992–2007, Deep-Sea Res. Pt. II, 55, 2118–2131, https://doi.org/10.1016/j.dsr2.2008.04.028, 2008.
Ducklow, H. W., Fraser, W. R., Meredith, M. P., Stammerjohn, S. E., Doney, S. C., Martinson, D. G., Sailley, S. F., Schofield, O. M., Steinberg, D. K., Venables, H. J., and Amsler, C. D.: West Antarctic Peninsula: an ice-dependent coastal marine ecosystem in transition, Oceanography, 26, 190–203, https://doi.org/10.5670/oceanog.2013.62, 2013.
Eayrs, C., Holland, D., Francis, D., Wagner, T., Kumar, R., and Li, X.: Understanding the Seasonal Cycle of Antarctic Sea Ice Extent in the Context of Longer-Term Variability, Rev. Geophys., 57, 1037–1064, https://doi.org/10.1029/2018RG000631, 2019.
El-Sayed, S. Z.: On the productivity of the southwest Atlantic Ocean and the waters west of the Antarctic Peninsula, Biology of the Antarctic Seas III, Antar. Res. Ser., 11, 15–47, https://doi.org/10.1029/AR011p0015, 1967.
El-Sayed, S. Z.: History and evolution of primary productivity studies of the Southern Ocean, Polar Biol., 28, 423–438, https://doi.org/10.1007/s00300-004-0685-2, 2005.
García, M. A., López, O., Sospedra, J., Espino, M., Gracia, V., Morrison, G., Rojas, P., Figa, J., Puigdefabregas, J., and Arcilla, A. S.: Mesoscale variability in the Bransfield Strait region (Antarctica) during Austral summer, Ann. Geophys., 12, 856–867, https://doi.org/10.1007/s00585-994-0856-z, 1994.
García, M. A., Castro, C. G., Ríos, A. F., Doval, M. D., Rosón, G., Gomis, D., and López, O.: Water masses and distribution of physico-chemical properties in the Western Bransfield Strait and Gerlache Strait during Austral summer 1995/96, Deep-Sea Res. Pt. II, 49, 585–602, https://doi.org/10.1016/S0967-0645(01)00113-8, 2002.
García, M. A., Castro, C. G., Ríos, A. F., Doval, M. D., Rosón, G., Gomis, D., and López, O.: Physical oceanography during Hespérides cruise Fruela95, PANGAEA [data set], https://doi.org/10.1594/PANGAEA.825643 (last access: 9 March 2022), 2002a.
García, M. A., Castro, C. G., Ríos, A. F., Doval, M. D., Rosón, G., Gomis, D., and López, O.: Physical oceanography during Hespérides cruise Fruela96, PANGAEA [data set], https://doi.org/10.1594/PANGAEA.825644 (last access: 9 March 2022), 2002b.
García-Muñoz, C., Lubián, L. M., García, C. M., Marrero-Díaz, Á., Sangra, P., and Vernet, M.: A mesoscale study of phytoplankton assemblages around the South Shetland Islands (Antarctica), Polar Biol., 36, 1107–1123, https://doi.org/10.1007/s00300-013-1333-5, 2013.
Garibotti, I. A., Vernet, M., Ferrario, M. E., Smith, R. C., Ross, R. M., and Quetin, L. B.: Phytoplankton spatial distribution patterns along the western Antarctic Peninsula (Southern Ocean), Mar. Ecol. Prog. Ser., 261, 21–39, https://doi.org/10.3354/meps261021, 2003.
Gill, A. E.: Atmosphere-Ocean Dynamics (International Geophysics Series, Volume 30), Academic Press, ISBN 10 0122835220, ISBN 13 9780122835223, 1982.
Global Ocean OSTIA Sea Surface Temperature and Sea Ice Reprocessed, E. U.: Copernicus Marine Service Information (CMEMS), Marine Data Store (MDS) [data set], https://doi.org/10.48670/moi-00168 (last access: 12 March 2022), 2022.
Global Ocean Colour (Copernicus-GlobColour): Bio-Geo-Chemical, L4 (monthly and interpolated) from Satellite Observations (1997–ongoing), E. U. Copernicus Marine Service Information (CMEMS), Marine Data Store (MDS) [data set], https://doi.org/10.48670/moi-00281, 2023.
Grelowski, A., Majewicz, A., and Pastuszak, M.: Mesoscale hydrodynamic processes in the region of Bransfield Strait and the southern part of Drake Passage during BIOMASS-SIBEX 1983/84, Polish Polar Res., 7, 353–369, 1986.
Gonçalves-Araujo, R., de Souza, M. S., Tavano, V. M., and Garcia, C. A. E.: Influence of oceanographic features on spatial and interannual variability of phytoplankton in the Bransfield Strait, Antarctica, J. Mar. Syst., 142, 1–15, https://doi.org/10.1016/j.jmarsys.2014.09.007, 2015.
Good, S., Fiedler, E., Mao, C., Martin, M. J., Maycock, A., Reid, R., Roberts-Jones, J., Searle, T., Waters, J., While, J., and Worsfold, M.: The current configuration of the OSTIA system for operational production of foundation sea surface temperature and ice concentration analyses, Remote Sens., 12, 720, https://doi.org/10.3390/rs12040720, 2020.
Gordon, A. L., Visbeck, M., and Huber, B.: Physical oceanography during Nathaniel B. Palmer cruise NBP97-05 (DOVETAIL), PANGAEA [data set], https://doi.org/10.1594/PANGAEA.761002, (last access: 9 March 2022), 2001.
Haberman, K. L., Ross, R. M., and Quetin, L. B.: Diet of the Antarctic krill (Euphausia superba Dana): II. Selective grazing in mixed phytoplankton assemblages, J. Exp. Mar. Biol. Ecol., 283, 97–113, https://doi.org/10.1016/S0022-0981(02)00467-7, 2003.
Hernández-León, S., Sangrà, P., Lehette, P., Lubián, L., Almeida, C., Putzeys, S., Bécognée, P., and Andrade, M. P.: Zooplankton biomass and metabolism in the frontal zones of the Bransfield Strait, Antarctica, J. Mar. Syst., 111, 196–207, https://doi.org/10.1016/j.jmarsys.2012.11.001, 2013.
Hersbach, H., Bell, B., Berrisford, P., Hirahara, S., Horányi, A., Muñoz Sabater, J., Nicolas, J., Peubey, C., Radu, R., Schepers, D., Simmons, A., Soci, C., Abdalla, S., Abellan, X., Balsamo, G., Bechtold, P., Biavati, G., Bidlot, J., Bonavita, M., De Chiara, G., Dahlgren, P., Dee, D., Diamantakis, M., Dragani, R., Flemming, J., Forbes, R., Fuentes, M., Geer, A., Haimberger, L., Healy, S., Hogan, R. J., Holm, E., Janiskova, M., Keeley, S., Laloyaux, P., Lopez, P., Lupu, C., Radnoti, G., de Rosnay, P., Rozum, I., Vamborg, F., Villaume, S., and Thépaut, J. N.: The ERA5 global reanalysis, Q. J. Roy. Meteor. Soc., 146, 1999–2049, https://doi.org/10.1002/qj.3803, 2020.
Hersbach, H., Bell, B., Berrisford, P., Biavati, G., Horányi, A., Muñoz Sabater, J., Nicolas, J., Peubey, C., Radu, R., Rozum, I., Schepers, D., Simmons, A., Soci, C., Dee, D., and Thépaut, J. N.: ERA5 monthly averaged data on single levels from 1940 to present, Copernicus Climate Change Service (C3S) Climate Data Store (CDS) [data set], https://doi.org/10.24381/cds.f17050d7 (last access: 12 March 2022), 2023.
Hewes, C. D., Reiss, C. S., and Holm-Hansen, O.: A quantitative analysis of sources for summertime phytoplankton variability over 18 years in the South Shetland Islands (Antarctica) region, Deep-Sea Res. Pt. I, 56, 1230–1241, https://doi.org/10.1016/j.dsr.2009.01.010, 2009.
Hofmann, E. E., Klinck, J. M., Lascara, C. M., and Smith, D. A.: Water mass distribution and circulation west of the Antarctic Peninsula and including Bransfield Strait, Foundations for ecological research west of the Antarctic Peninsula, 70, 61–80, 1996.
Holland, P. R. and Kwok, R.: Wind-driven trends in Antarctic sea-ice drift, Nat. Geosci., 5, 872–875, https://doi.org/10.1038/ngeo1627, 2012.
Holland, P. R.: The seasonality of Antarctic sea ice trends, Geophys. Res. Lett., 41, 4230–4237, https://doi.org/10.1002/2014GL060172, 2014.
Holte, J. and Talley, L.: A new algorithm for finding mixed layer depths with applications to Argo data and Subantarctic Mode Water formation, J. Atmos. Ocean. Technol., 26, 1920–1939, https://doi.org/10.1175/2009JTECHO543.1, 2009.
Kara, A. B., Wallcraft, A. J., Metzger, E. J., Hurlburt, H. E., and Fairall, C. W.: Wind stress drag coefficient over the global ocean, J. Climate, 20, 5856–5864, https://doi.org/10.1175/2007JCLI1825.1, 2007.
Kusahara, K., Williams, G. D., Massom, R., Reid, P., and Hasumi, H.: Spatiotemporal dependence of Antarctic sea ice variability to dynamic and thermodynamic forcing: A coupled ocean–sea ice model study, Clim. Dynam., 52, 3791–3807, https://doi.org/10.1007/s00382-018-4348-3, 2019.
La, H., Park, K., Chae, J. Y., Park, T., and Park, J.: Climatic factors and their robust evidences controlling phytoplankton biomass in the Bransfield Strait, Terr. Atmos. Ocean. Sci., 30, 821–830, https://doi.org/10.3319/TAO.2019.04.30.01, 2019.
Large, W. G. and Pond, S.: Open ocean momentum flux measurements in moderate to strong winds, J. Phys. Oceanogr., 11, 324–336, 1981.
Lee, E. Y. and Park, K. A.: Validation Satellite Sea Surface Temperature in the Coastal Regions, IEEE International Geoscience and Remote Sensing Symposium IGARSS, Brussels, Belgium, 11–16 July 2021, 7607–7610, https://doi.org/10.1109/IGARSS47720.2021.9553695, 2021.
Lipski, M. and Rakusa-Suszczewski, S.: Early summer pattern of vertical distribution of chlorophyll a (Bransfield Strait, Antarctica, November 1986), Pol. Arch. Hydrobiol., 37, 287–293, 1990.
Loeb, V., Siegel, V., Holm-Hansen, O., Hewitt, R., Fraser, W., Trivelpiece, W., and Trivelpiece, S.: Effects of sea-ice extentg and krill or salp dominance on the Antarctic food web, Nature, 387, 897–900, https://doi.org/10.1038/43174, 1997.
Macías, D., Rodríguez-Santana, Á., Ramírez-Romero, E., Bruno, M., Pelegrí, J. L., Sangrà, P., Aguiar-González, B., and García, C. M.: Turbulence as a driver for vertical plankton distribution in the subsurface upper ocean, Sci. Mar., 77, 541–549, https://doi.org/10.3989/scimar.03854.03A, 2013.
Mackey, M. D., Mackey, D. J., Higgins, H. W., and Wright, S. W.: CHEMTAX-a program for estimating class abundances from chemical markers: application to HPLC measurements of phytoplankton, Mar. Ecol. Prog. Ser., 144, 265–283, https://doi.org/10.3354/meps144265, 1996.
Marrari, M., Hu, C., and Daly, K.: Validation of SeaWiFS chlorophyll a concentrations in the Southern Ocean: A revisit, Remote Sens. Environ., 105, 367–375, https://doi.org/10.1016/j.rse.2006.07.008, 2006.
Mata, M. M. and Garcia, C. A. E.: Physical oceanography during Ary Rongel cruise GOAL2003, PANGAEA [data set], https://doi.org/10.1594/PANGAEA.863598, 2016a.
Mata, M. M. and Garcia, C. A. E.: Physical oceanography during Ary Rongel cruise GOAL2004, PANGAEA [data set], https://doi.org/10.1594/PANGAEA.863599, 2016b.
Mata, M. M. and Garcia, C. A. E.: Physical oceanography during Ary Rongel cruise GOAL2005, PANGAEA [data set], https://doi.org/10.1594/PANGAEA.863600, 2016c.
Mata, M. M. and Garcia, C. A. E.: Physical oceanography during Ary Rongel cruise SOS-Climate I, PANGAEA [data set], https://doi.org/10.1594/PANGAEA.864576, 2016d.
Mata, M. M. and Garcia, C. A. E.: Physical oceanography during Ary Rongel cruise SOS-Climate II, PANGAEA [data set], https://doi.org/10.1594/PANGAEA.864578, 2016e.
Mata, M. M. and Garcia, C. A. E.: Physical oceanography during Ary Rongel cruise SOS-Climate III, PANGAEA [data set], https://doi.org/10.1594/PANGAEA.864579, 2016f.
Mendes, C. R. B., Tavano, V. M., Leal, M. C., de Souza, M. S., Brotas, V., and Garcia, C. A. E.: Shifts in the dominance between diatoms and cryptophytes during three late summers in the Bransfield Strait (Antarctic Peninsula), Polar Biol., 36, 537–547, https://doi.org/10.1007/s00300-012-1282-4, 2013.
Mendes, C. R. B., Costa, R. R., Ferreira, A., Jesus, B., Tavano, V. M., Dotto, T. S., Leal, M.C., Kerr, R., Islabão, C. A., Franco, A. D., Mata, M. M., and Secchi, E. R.: Cryptophytes: An emerging algal group in the rapidly changing Antarctic Peninsula marine environments, Global Change Biol., 29, 1791–1808, https://doi.org/10.1111/gcb.16602, 2023.
Mitchell, B. G. and Holm-Hansen, O.: Observations of modeling of the Antartic phytoplankton crop in relation to mixing depth, Deep-Sea Res. Pt. I, 38, 981–1007, https://doi.org/10.1016/0198-0149(91)90093-U, 1991.
Montes-Hugo, M., Doney, S. C., Ducklow, H. W., Fraser, W., Martinson, D., Stammerjohn, S. E., and Schofield, O.: Recent changes in phytoplankton communities associated with rapid regional climate change along the western Antarctic Peninsula, Science, 323, 1470–1473, https://doi.org/10.1126/science.1164533, 2009.
Moore, J. K. and Abbott, M. R.: Surface chlorophyll concentrations in relation to the Antarctic Polar Front: seasonal and spatial patterns from satellite observations, J. Mar. Syst., 37, 69–86, 2002.
Mukhanov, V. S., Sakhon, E. G., Polukhin, A. A., and Artemiev, V. A.: Nanophytoplankton in the Bransfield Strait: Contribution of Cryptophyta to the Community Abundance and Biomass During Austral Summer, in: Antarctic Peninsula Region of the Southern Ocean, Advances in Polar Ecology, edited by: Morozov, E. G., Flint, M. V., and Spiridonov, V. A., Springer, 261–276, https://doi.org/10.1007/978-3-030-78927-5_20, 2021.
Mura, M. P., Satta, M. P., and Agustí, S.: Water-mass influences on summer Antarctic phytoplankton biomass and community structure, Polar Biol., 15, 15–20, https://doi.org/10.1007/BF00236119, 1995.
Niller, P. P., Amos, A., and Hu, J. H.: Water masses and 200 m relative geostrophic circulation in the western Bransfield Strait region, Deep-Sea Res. Pt. I, 38, 943–959, https://doi.org/10.1016/0198-0149(91)90091-S, 1991.
NOAA: World Ocean Database, NOAA, https://www.ncei.noaa.gov/access/world-ocean-database-select/dbsearch.html (last access: 25 February 2022), 2024.
Patel, R. S.: Wind Stresses computation, MATLAB Central File Exchange, [code], https://www.mathworks.com/matlabcentral/fileexchange/53391-wind-stresses-computation (last access: 26 December 2023), 2023.
Petrou, K., Kranz, S. A., Trimborn, S., Hassler, C. S., Ameijeiras, S. B., Sackett, O., Ralph, P. J., and Davidson, A. T.: Southern Ocean phytoplankton physiology in a changing climate, J. Plant Physiol., 203, 135–150, https://doi.org/10.1016/j.jplph.2016.05.004, 2016.
Polukhin, A. A., Morozov, E. G., Tishchenko, P. P., Frey, D. I., Artemiev, V. A., Borisenko, G. V., Vidnichuk, A. V., Marina, E. N., Medvedev, E. V., Popov, O. S., Seliverstova, A. M., and Chultsova, A. L.: Water Structure in the Bransfield Strait (Antarctica) in January 2020: Hydrophysical, Optical, and Hydrochemical Features, Oceanology, 61, 632–644, https://doi.org/10.1134/S0001437021050106, 2021.
Prézelin, B. B., Hofmann, E. E., Mengelt, C., and Klinck, J. M.: The linkage between Upper Circumpolar Deep Water (UCDW) and phytoplankton assemblages on the west Antarctic Peninsula continental shelf, J. Mar. Res., 58, 165–202, https://doi.org/10.1357/002224000321511133, 2000.
Primo, C. and Vázquez, E.: Ascidians collected during the Spanish Antarctic expedition CIEMAR 99/00 in the Bransfield and Gerlache Straits, J. Nat. Hist., 41, 1775–1810, https://doi.org/10.1080/00222930701500126, 2007.
Saenz, B. T., McKee, D. C., Doney, S. C., Martinson, D. G., and Stammerjohn, S. E.: Influence of seasonally varying sea-ice concentration and subsurface ocean heat on sea-ice thickness and sea-ice seasonality for a `warm-shelf' region in Antarctica, J. Glaciol., 1–17, https://doi.org/10.1017/jog.2023.36, 2023.
Sailley, S. F., Ducklow, H. W., Moeller, H. V., Fraser, W. R., Schofield, O. M., Steinberg, D. K., Garzio, L. M., and Doney, S. C.: Carbon fluxes and pelagic ecosystem dynamics near two western Antarctic Peninsula Adélie penguin colonies: an inverse model approach, Mar. Ecol. Prog. Ser., 492, 253–272, https://doi.org/10.3354/meps10534, 2013.
Sangrà, P., Gordo, C., Hernández-Arencibia, M., Marrero-Díaz, A., Rodríguez-Santana, A., Stegner, A., Martínez-Marrero, A., Pelegrí, J., and Pichon, T.: The Bransfield current system, Deep-Sea Res. Pt. I, 58, 390–402, https://doi.org/10.1016/j.dsr.2011.01.011, 2011.
Sangrà, P., García-Muñoz, C., García, C. M., Marrero-Díaz, Á., Sobrino, C., Mouriño-Carballido, B., Aguiar-González, B., Henríquez-Pastene, C., Rodríguez-Santana, Á., Lubián, L. M., Hernández-Arencibia, M., Hernández-León, S., and Estrada-Allis, S. N.: Coupling between upper ocean layer variability and size-fractionated phytoplankton in a non-nutrient-limited environment, Mar. Ecol. Prog. Ser., 499, 35–46, https://doi.org/10.3354/meps10668, 2014.
Sangrà, P., Stegner, A., Hernández-Arencibia, M., Marrero-Díaz, Á., Salinas, C., Aguiar-González, B., Henríquez-Pastene C., and Mouriño-Carballido, B.: The Bransfield gravity current, Deep-Sea Res. Pt. I, 119, 1–15, https://doi.org/10.1016/j.dsr.2016.11.003, 2017.
Schofield, O., Ducklow, H. W., Martinson, D. G., Meredith, M. P., Moline, M. A., and Fraser, W. R.: How do polar marine ecosystems respond to rapid climate change?, Science, 328, 1520–1523, https://doi.org/10.1126/science.1185779, 2010.
Siegel, D. A., Doney, S. C., and Yoder, J. A.: The North Atlantic spring phytoplankton bloom and Sverdrup's critical depth hypothesis, Science, 296, 730–733, https://doi.org/10.1126/science.1069174, 2002.
Smith, R. C., Martinson, D. G., Stammerjohn, S. E., Iannuzzi, R. A., and Ireson, K.: Bellingshausen and western Antarctic Peninsula region: Pigment biomass and sea-ice spatial/temporal distributions and interannual variability, Deep-Sea Res. Pt. II, 55, 1949–1963, https://doi.org/10.1016/j.dsr2.2008.04.027, 2008.
Stammerjohn, S., Massom, R., Rind, D., and Martinson, D.: Regions of rapid sea ice change: An inter-hemispheric seasonal comparison, Geophys. Res. Lett., 39, L06501, https://doi.org/10.1029/2012GL050874, 2012.
Stenseth, N. C., Ottersen, G., Hurrell, J. W., Mysterud, A., Lima, M., Chan, K. S., Yoccoz, N. G., and Ådlandsvik, B.: Studying climate effects on ecology through the use of climate indices: the North Atlantic Oscillation, El Nino Southern Oscillation and beyond, P. Roy. Soc. B-Biol Sci., 270, 2087–2096, https://doi.org/10.1098/rspb.2003.2415, 2003.
Sullivan, C. W., Arrigo, K. R., McClain, C. R., Comiso, J. C., and Firestone, J.: Distributions of phytoplankton blooms in the Southern Ocean, Science, 262, 1832–1837, https://doi.org/10.1126/science.262.5141.1832, 1993.
Thomalla, S. J., Fauchereau, N., Swart, S., and Monteiro, P. M. S.: Regional scale characteristics of the seasonal cycle of chlorophyll in the Southern Ocean, Biogeosciences, 8, 2849–2866, https://doi.org/10.5194/bg-8-2849-2011, 2011.
Tokarczyk, R.: Classification of water masses in the Bransfield Strait and southern part of the Drake Passage using a method of statistical multidimensional analysis, Polish Polar Res., 8, 333–366, 1987.
Trenberth, K. E., Large, W. G., and Olson, J. G.: The mean annual cycle in global ocean wind stress, J. Phys. Oceanogr., 20, 1742–1760, 1990.
Veny, M., Aguiar-González, B., Marrero-Díaz, Á., and Rodríguez-Santana, Á.: Seasonal circulation and volume transport of the Bransfield Current, Prog. Oceanogr., 204, 102795, https://doi.org/10.1016/j.pocean.2022.102795, 2022.
Von Bodungen, B., John, H. C., Lutjeharms, J. R. E., Mohrholz, V., and Veitch, J.: Hydrographic and biological patterns across the Angola–Benguela Frontal Zone under undisturbed conditions, J. Mar. Syst., 74, 189–215, 2008.
Vorrath, M.-E., Müller, J., Rebolledo, L., Cárdenas, P., Shi, X., Esper, O., Opel, T., Geibert, W., Muñoz, P., Haas, C., Kuhn, G., Lange, C. B., Lohmann, G., and Mollenhauer, G.: Sea ice dynamics in the Bransfield Strait, Antarctic Peninsula, during the past 240 years: a multi-proxy intercomparison study, Clim. Past, 16, 2459–2483, https://doi.org/10.5194/cp-16-2459-2020, 2020.
Xie, J., Zhu, J., and Li, Y.: Assessment and inter-comparison of five high-resolution sea surface temperature products in the shelf and coastal seas around China, Cont. Shelf Res., 28, 1286–1293, https://doi.org/10.1016/j.csr.2008.02.020, 2008.
Yang, K., Meyer, A., Strutton, P. G., and Fischer, A. M.: Global trends of fronts and chlorophyll in a warming ocean, Commun. Earth Environ., 4, 489, https://doi.org/10.1038/s43247-023-01160-2, 2023.
Zhang, H. M., Reynolds, R. W., and Smith, T. M.: Bias characteristics in the AVHRR sea surface temperature, Geophys. Res. Lett., 31, L01307, https://doi.org/10.1029/2003GL018804, 2004.
Zhang, Y., Seidel, D. J., Golaz, J. C., Deser, C., and Tomas, R. A.: Climatological characteristics of Arctic and Antarctic surface-based inversions, J. Climate, 24, 5167–5186, https://doi.org/10.1175/2011JCLI4004.1, 2011.
Zhou, M., Niller, P. P., and Hu, J. H.: Surface currents in the Bransfield and Gerlache straits, Antarctica, Deep-Sea Res. Pt. I, 49, 267–280, https://doi.org/10.1016/S0967-0637(01)00062-0, 2002.
Zhou, M., Niller, P. P., Zhu, Y., and Dorland, R. D.: The western boundary current in the Bransfield Strait, Antarctica, Deep-Sea Res. Pt. I, 53, 1244–1252, https://doi.org/10.1016/j.dsr.2006.04.003, 2006.
Short summary
This study examines the seasonal patterns of chlorophyll-a (chl-a) blooms in the Bransfield Strait using remote sensing data supported by novel and historical in situ observations. Through satellite data we show that we can identify two distinct phytoplankton niches along a thermal front known as the Peninsula Front: the Transitional Bellingshausen Water and Transitional Weddell Water pools. These findings enable the first climatological description of the chl-a blooms in the Bransfield Strait.
This study examines the seasonal patterns of chlorophyll-a (chl-a) blooms in the Bransfield...