Matches in SemOpenAlex for { <https://semopenalex.org/work/W4211209707> ?p ?o ?g. }
- W4211209707 endingPage "818" @default.
- W4211209707 startingPage "807" @default.
- W4211209707 abstract "ABSTRACT Patagonia area is located in close proximity to the Antarctic ozone “hole” and thus receives enhanced ultraviolet B (UV‐B) radiation (280–315 nm) in addition to the normal levels of ultraviolet A (UV‐A; 315–400 nm) and photosynthetically available radiation (PAR; 400‐700 nm). In marine ecosystems of Patagonia, normal ultraviolet radiation (UVR) levels affect phytoplankton assemblages during the three phases of the annual succession: (1) prebloom season (late summer‐fall), (2) bloom season (winter‐early spring) and (3) postbloom season (late spring‐summer). Small‐size cells characterize the pre‐and postbloom communities, which have a relatively high photosynthetic inhibition because of high UVR levels during those seasons. During the bloom, characterized by micro‐plankton diatoms, photosynthetic inhibition is low because of the low UVR levels reaching the earth's surface during winter; this community, however, is more sensitive to UV‐B when inhibition is normalized by irradiance ( i.e. biological weighting functions). In situ studies have shown that UVR significantly affects not only photosynthesis but also the DNA molecule, but these negative effects are rapidly reduced in the water column because of the differential attenuation of solar radiation. UVR also affects photosynthesis versus irradiance (P vs E) parameters of some natural phytoplankton assemblages ( i.e. during the pre‐ but not during the postbloom season). However, there is a significant temporal variability of P vs E parameters, which are influenced by the nutrient status of cells and taxonomic composition; taxonomic composition is in turn associated with the stratification conditions ( e.g. wind speed and duration). In Patagonia, wind speed is one of the most important variables that conditions the development of the winter bloom by regulating the depth of the upper mixed layer (UML) and hence the mean irradiance received by cells. Studies on the interactive effects of UVR and mixing show that responses of phytoplankton vary according to the taxonomic composition and cell structure of assemblages; therefore cells use UVR if >90% of the euphotic zone is being mixed. In fact, cell size plays a very important role when estimating the impact of UVR on phytoplankton, with large cells being more sensitive when determining photosynthesis inhibition, whereas small cells are more sensitive to DNA damage. Finally, in long‐term experiments, it was determined that UVR can shape the diatom community structure in some assemblages of coastal waters, but it is virtually unknown how these changes affect the trophody‐namics of marine systems. Future studies should consider the combined effects of UVR on both phytoplankton and grazers to establish potential changes in biodiversity of the area." @default.
- W4211209707 created "2022-02-13" @default.
- W4211209707 creator A5002522693 @default.
- W4211209707 creator A5040309929 @default.
- W4211209707 creator A5051537116 @default.
- W4211209707 creator A5080623153 @default.
- W4211209707 creator A5088589977 @default.
- W4211209707 date "2005-07-01" @default.
- W4211209707 modified "2023-10-15" @default.
- W4211209707 title "Impact of Solar Ultraviolet Radiation on Marine Phytoplankton of Patagonia, Argentina¶" @default.
- W4211209707 cites W1508236106 @default.
- W4211209707 cites W1547723671 @default.
- W4211209707 cites W1549511677 @default.
- W4211209707 cites W1631292470 @default.
- W4211209707 cites W1748347525 @default.
- W4211209707 cites W1783322432 @default.
- W4211209707 cites W1798643703 @default.
- W4211209707 cites W1805873157 @default.
- W4211209707 cites W1959478639 @default.
- W4211209707 cites W1964182630 @default.
- W4211209707 cites W1967948031 @default.
- W4211209707 cites W1970749496 @default.
- W4211209707 cites W1973909080 @default.
- W4211209707 cites W1977098488 @default.
- W4211209707 cites W1978600540 @default.
- W4211209707 cites W1980776022 @default.
- W4211209707 cites W1982819213 @default.
- W4211209707 cites W1992164334 @default.
- W4211209707 cites W1992507674 @default.
- W4211209707 cites W1994000733 @default.
- W4211209707 cites W1995036048 @default.
- W4211209707 cites W1996415851 @default.
- W4211209707 cites W1996500857 @default.
- W4211209707 cites W2000936326 @default.
- W4211209707 cites W2002951050 @default.
- W4211209707 cites W2004062693 @default.
- W4211209707 cites W2006278443 @default.
- W4211209707 cites W2013090468 @default.
- W4211209707 cites W2017315078 @default.
- W4211209707 cites W2020728703 @default.
- W4211209707 cites W2021678904 @default.
- W4211209707 cites W2022087217 @default.
- W4211209707 cites W2022235715 @default.
- W4211209707 cites W2025744225 @default.
- W4211209707 cites W2028170552 @default.
- W4211209707 cites W2031268238 @default.
- W4211209707 cites W2032810031 @default.
- W4211209707 cites W2033943110 @default.
- W4211209707 cites W2037389443 @default.
- W4211209707 cites W2039483726 @default.
- W4211209707 cites W2040256874 @default.
- W4211209707 cites W2040366534 @default.
- W4211209707 cites W2040652683 @default.
- W4211209707 cites W2042131249 @default.
- W4211209707 cites W2047017657 @default.
- W4211209707 cites W2049046055 @default.
- W4211209707 cites W2051663919 @default.
- W4211209707 cites W2052275621 @default.
- W4211209707 cites W2052787160 @default.
- W4211209707 cites W2052835934 @default.
- W4211209707 cites W2053881819 @default.
- W4211209707 cites W2055698954 @default.
- W4211209707 cites W2057793631 @default.
- W4211209707 cites W2066632827 @default.
- W4211209707 cites W2068573450 @default.
- W4211209707 cites W2070082318 @default.
- W4211209707 cites W2071364555 @default.
- W4211209707 cites W2071430325 @default.
- W4211209707 cites W2072012289 @default.
- W4211209707 cites W2073434021 @default.
- W4211209707 cites W2074185072 @default.
- W4211209707 cites W2078753849 @default.
- W4211209707 cites W2083517593 @default.
- W4211209707 cites W2085103669 @default.
- W4211209707 cites W2088966136 @default.
- W4211209707 cites W2089562938 @default.
- W4211209707 cites W2091513172 @default.
- W4211209707 cites W2095411566 @default.
- W4211209707 cites W2099675224 @default.
- W4211209707 cites W2103076812 @default.
- W4211209707 cites W2111730903 @default.
- W4211209707 cites W2112274644 @default.
- W4211209707 cites W2112307641 @default.
- W4211209707 cites W2114083125 @default.
- W4211209707 cites W2115111069 @default.
- W4211209707 cites W2119394756 @default.
- W4211209707 cites W2119739673 @default.
- W4211209707 cites W2121966290 @default.
- W4211209707 cites W2132427279 @default.
- W4211209707 cites W2135598978 @default.
- W4211209707 cites W2137086266 @default.
- W4211209707 cites W2139698916 @default.
- W4211209707 cites W2145293944 @default.
- W4211209707 cites W2146903405 @default.
- W4211209707 cites W2153602093 @default.
- W4211209707 cites W2168693649 @default.
- W4211209707 cites W2169787625 @default.
- W4211209707 cites W2170563701 @default.