The state of a river in pechora basin after an oil spill: Assessment of changes in zooplankton community

Fefilova, Elena

doi:10.1134/s0097807811050058

Cited by 14 publications

(4 citation statements)

References 12 publications

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“…During the extraction phase of fossil fuel exploitation, there are two main impacts on biodiversity: directly through conversion, degradation, pollution, or disturbance of habitats at extraction sites (Beckmann, Murray, Seidler, & Berger, ; Camilli et al., ; O'Rourke & Connolly, ), and indirectly by increasing access for loggers, farmers, hunters, and settlements (Laurance, Goosem, & Laurance, ). These impacts extend beyond terrestrial surface‐dwelling organisms (Beckmann et al., ; Mutter, Pavlacky, Van Lanen, & Grenyer, ; Sawyer, Nielson, Lindzey, & Mcdonald, ), to affect below‐ground (Efroymson, ), freshwater (Fefilova, ), and marine ecosystems (Votier et al., ; White et al., ; Whitehead et al., ).…”

Section: Introductionmentioning

confidence: 99%

Present and future biodiversity risks from fossil fuel exploitation

Harfoot

Tittensor

Knight

et al. 2018

CONSERVATION LETTERS

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Currently, human society is predominantly powered by fossil fuels-coal, oil, and natural gas-yet also ultimately depends on goods and services provided by biodiversity. Fossil fuel extraction impacts biodiversity indirectly through climate change and by increasing accessibility, and directly through habitat loss and pollution. In contrast to the indirect effects, quantification of the direct impacts has been relatively neglected.To address this, we analyze the potential threat to >37,000 species and >190,000 protected areas globally from the locations of present and future fossil fuel extraction in marine and terrestrial environments. Sites that are currently exploited have higher species richness and endemism than unexploited sites, whereas known future hydrocarbon activities will predominantly move into less biodiverse locations. We identify 181 "high-risk" locations where oil or gas extraction suitability coincides with biodiversity importance, making conflicts between extraction and conservation probable. In total, protected areas are located on $3-15 trillion of unexploited hydrocarbon reserves, posing challenges and potentially opportunities for protected area management and sustainable financing.

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Section: Introductionmentioning

confidence: 99%

Present and future biodiversity risks from fossil fuel exploitation

Harfoot

Tittensor

Knight

et al. 2018

CONSERVATION LETTERS

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“…Harrison et al (1986) found that low concentrations (<100 mg/l) of polycyclic aromatic hydrocarbon (PAHs) enhance phytoplankton growth and higher concentrations (>100 mg/l) of PAHs inhibit the growth of phytoplankton; complicated hydrocarbon or high-molecular-weight would also inhibit the growth and photosynthesis of algae (Vargo et al 1982;Harrison et al 1986;Yang et al 2009). At the same time, as zooplankton are more sensitive to oil spills due to the lack of oxygen in the water surface, quantity of zooplankton greatly decreased after oil spills (Fefilova 2011). The Chl-a bloom in Box 3 might be related to the decrease of predators and stimulation of oil on phytoplankton (Dunstan et al 1975;Parsons et al 1976).…”

Section: Phytoplankton Blooms and The Oil Spillsmentioning

confidence: 99%

Ecological response of phytoplankton to the oil spills in the oceans

Tang

Sun

Zhou

et al. 2019

Geomatics, Natural Hazards and Risk

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Oil spills in oceans have substantial influence on marine ecosystems. This study investigates 21 oil spills in the world. Analyzing Chlorophyll-a (Chl-a) from Moderate Resolution Imaging Spectroradiomerer (MODIS) data after Penglai oil spills on 4 June 2011, found a bloom with peak value of Chl-a (13.66 mg m À3 ) spread over an area of 800 km 2 during 18-25 June 2011, and a pronounced increase in the monthly Chl-a concentration (6.40 mg m À3 ) on June 2012 in the Bohai Sea. Out of the 21 oil spills, 14 blooms were observed, while 11 blooms associated with oil spills in the time interval of 3-10 months. In total, about 75% blooms occurred during June-August. Among all 14 blooms, 72% appeared when temperature was warm (20-30 C), 7% appeared when temperature was low (10-20 C), and the remaining 21% occurred when temperature was lower than 10 C. This research concludes that the odds of a phytoplankton bloom after an oil spillage are higher at the time of higher temperature (>20 C). The short-term impact of the oil spills on ecosystem could mainly depend on the quantity and composition of oil, while the longterm impact of the oil spills on ecosystem could be related to biodegradation of microorganisms.

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“…На території більшості країн світу не залишилось річок, які не зазнали б господарської діяльності (Baranyi et al, 2002;Illyová et al, 2008;Czerniawski and Domagała, 2010;Burdis and Hoxmeier, 2011;Fefilova, 2011;Czerniawski et al, 2013). Територія України вкрита мережею річок, більшість яких належить до басейнів Чорного, Азовського морів.…”

Section: вступunclassified

Seasonal dynamics of the littoral zooplankton groups of the Uday River within the National Nature Park "Pyryatynsky"

2017

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The increase in anthropogenic impact on aquatic ecosystems causes significant alterations in the composition and structure of hydrobiont groups. These processes are characteristic of the hydrobiocenoses of the Uday River, the valley of which lies within the National Nature Park "Pyryatynsky", established in 2009 in the Pyryatyn district of Poltava region. Within this protected area it is convenient to carry out continuous monitoring of changes in anthropogenic load on shore ecosystems of the river. One of the most convenient monitoring groups is zooplankton, which is one of the essential components of the trophic networks of aquatic ecosystems and which is the feeding basis of planktonophagous and young fish. The object of this research was the major groups of zooplankton: rotifers (class Eurotatoria), cladocerans (class Branchiopoda, order Cladocera), different age stages of copepods (class Copepoda), ostracods (class Ostracoda). Zooplankton were collected in the daytime in spring (mid April), summer (end of July) and autumn (late September) 2016 within eight research stations. As a result of the conducted research, 69 species of zooplankton were registered within the littoral water area of the Uday River. Monogonont rotifers numbered 19 (27.5%) species, bdelloid rotifers (subclass Bdelloidea), cladocerans-33 (47.9%) species, copepods-17 (24.6%). According to the faunal spectrum in the zooplankton groups, representatives of the cladoceran complex predominated. This is due to the favourable conditions for the development of filtrators, of which a considerable part is cladocerans. Three species of rotifers were identified in Poltava region for the first time: Beauchampiella eudactylota (Gosse, 1886), Dipleuchlanis propatula (Gosse, 1886), Mytilina acanthophora (Hauer, 1938). During the spring, 33 species of zooplankton were collected: rotifers-10 species, cladocerans-14, copepods-9 species. In summer 41 species were registered, including rotifers-10, cladocerans-18, and copepods-13. In autumn 37 species were found: 6 species of rotifers, cladocerans-21 and copepods-10. The species composition of the zooplankton in different seasons had a low similarity, as evidenced by Jaccard index: spring and autumn (J = 25,4), spring and autumn (J = 34,5), and summer and autumn (J = 34,6). In the spring, pelagic (36.3%) and phytophilic (45.6%) groups prevailed, and phytophilic dominated in summer (41.4%) and autumn (48.7%). Of the various groups classified according to feeding type, representatives of the peaceful group dominated in all the studied seasons, in spring comprising 69.7%, in summer-65.8%, and in autumn-73%. The density and biomass of zooplankton of the Uday River were "low" in spring and summer, and "very low"-in autumn.

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The state of a river in pechora basin after an oil spill: Assessment of changes in zooplankton community

Cited by 14 publications

References 12 publications

Present and future biodiversity risks from fossil fuel exploitation

Present and future biodiversity risks from fossil fuel exploitation

Ecological response of phytoplankton to the oil spills in the oceans

Seasonal dynamics of the littoral zooplankton groups of the Uday River within the National Nature Park "Pyryatynsky"

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