Evaluating the impact of residual low chlorine concentration on phytoplankton communities by flow cytometry

Chemosphere, Год журнала: 2024, Номер 367, С. 143634 - 143634

Опубликована: Ноя. 1, 2024

Chlorination is widely used to prevent biological fouling in power station cooling water systems. It may impact non-target organisms both within the system and after discharge (primary secondary entrainment). However, there a lack of data on impacts low chlorine concentrations that occur discharged plume marine phytoplankton community structure function. We examine natural communities single multiple exposures chlorination at between 0.02 0.1 mg/L total residual oxidants (TRO). Low-level causes limited changes diversity has no biomass. size functional quantified using flow cytometry do show reduction smaller cells, particularly eukaryote picophytoplankton. These are not detectable chlorophyll concentration alone, so provides important additional information over more standard ecotoxicological methods. The effects likely be localised vicinity discharges (mixing zone) where environmental quality (EQS) 10 μg/L for exceeded, but coastal food webs biogeochemical cycles should further evaluated.

Язык: Английский

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Climate Change Impacts and Future Risk on UK Seahorse Species, Short‐Snouted Hippocampus hippocampus and Long‐Snouted Hippocampus guttulatus

Aquatic Conservation Marine and Freshwater Ecosystems, Год журнала: 2024, Номер 34(12)

Опубликована: Дек. 1, 2024

ABSTRACT For the two European seahorse species, short‐snouted Hippocampus hippocampus and long‐snouted guttulatus , there are knowledge gaps that need further research. These research become increasingly pressing under climate change, where uncertainty in how coastal ecosystems will change is compounded by these seahorses respond to changing pressures. Under species could experience northward range shifts, expanding their United Kingdom (UK) waters, potentially requiring UK take a leadership role conservation future. This review aims synthesise current scientific provide an overview of likely change. Using most recent Intergovernmental Panel on Climate Change (IPCC) Sixth Assessment Report (AR6), predictions for future along with likelihood severity response combined confidence ranking risk UK. When considering individual factors, such as sea surface temperature, show some resilience, but cumulative impact multiple stressors, which existing has not been able capture. Overall, environmental variables needed across Europe.

Язык: Английский

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Comment on essd-2023-311

Опубликована: Сен. 11, 2023

Abstract. The Western Channel Observatory (WCO) comprises a series of pelagic, benthic and atmospheric sampling sites within 40 km Plymouth UK, which have been sampled by the Institutes on regular basis since 1903. This longevity recording high frequency observations provide unique combination data; for example temperature data were first collected in 1903 reference station L4 has weekly 1988 where nearly 400 planktonic taxa enumerated. While component datasets archived, here we summary database bringing together wide suite observations. provides monthly average values some key pelagic measurements inshore site (50° 15.00' N, 4° 13.02' W approx depth 55 m), offshore E1 02.00' 22.00' 75 m) intermediate L5 10.80' N 18.00' 58 m. In brief, include: water (from 1903); macronutrients 1934); dissolved inorganic carbon total alkalinity 2008); methane nitrous oxide 2011); chlorophyll a 1992); HPLC-derived pigments 1999); <20 μm plankton flow cytometry including bacteria (8 functional groups from 2007); phytoplankton microscopy (6 microplankton mesozooplankton FlowCam 2012), Noctiluca sp. dinoflagellate 1997); 1988); Calanus helgolandicus egg production rates fish larvae Young Fish Trawl survey (4 1924); macrofauna demersal (19 families blue shark, Prionace glauca 1958); 16S alpha diversity sediment column 2012). These varying coverage time resolution. metadata tables describe each set, pointers to source other related sets outputs not compiled here. We summaries main trends seasonality major, climate shifts that revealed over last century. are available Data Archive Seabed Species Habitats (DASSH) via link http://doi.org/10.17031/645110fb81749 (McEvoy Atkinson, 2023). Making fully accessible units both abundance biomass will stimulate variety uptakes. may include uses as an educational resource projects, models budgets or analysis long-term change coupled benthic-pelagic system supporting UK Northeast Atlantic policy management.

Язык: Английский

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Comment on essd-2023-311

Опубликована: Сен. 16, 2023

Abstract. The Western Channel Observatory (WCO) comprises a series of pelagic, benthic and atmospheric sampling sites within 40 km Plymouth UK, which have been sampled by the Institutes on regular basis since 1903. This longevity recording high frequency observations provide unique combination data; for example temperature data were first collected in 1903 reference station L4 has weekly 1988 where nearly 400 planktonic taxa enumerated. While component datasets archived, here we summary database bringing together wide suite observations. provides monthly average values some key pelagic measurements inshore site (50° 15.00' N, 4° 13.02' W approx depth 55 m), offshore E1 02.00' 22.00' 75 m) intermediate L5 10.80' N 18.00' 58 m. In brief, include: water (from 1903); macronutrients 1934); dissolved inorganic carbon total alkalinity 2008); methane nitrous oxide 2011); chlorophyll a 1992); HPLC-derived pigments 1999); <20 μm plankton flow cytometry including bacteria (8 functional groups from 2007); phytoplankton microscopy (6 microplankton mesozooplankton FlowCam 2012), Noctiluca sp. dinoflagellate 1997); 1988); Calanus helgolandicus egg production rates fish larvae Young Fish Trawl survey (4 1924); macrofauna demersal (19 families blue shark, Prionace glauca 1958); 16S alpha diversity sediment column 2012). These varying coverage time resolution. metadata tables describe each set, pointers to source other related sets outputs not compiled here. We summaries main trends seasonality major, climate shifts that revealed over last century. are available Data Archive Seabed Species Habitats (DASSH) via link http://doi.org/10.17031/645110fb81749 (McEvoy Atkinson, 2023). Making fully accessible units both abundance biomass will stimulate variety uptakes. may include uses as an educational resource projects, models budgets or analysis long-term change coupled benthic-pelagic system supporting UK Northeast Atlantic policy management.

Язык: Английский

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Comment on essd-2023-311

Опубликована: Окт. 17, 2023

Abstract. The Western Channel Observatory (WCO) comprises a series of pelagic, benthic and atmospheric sampling sites within 40 km Plymouth UK, which have been sampled by the Institutes on regular basis since 1903. This longevity recording high frequency observations provide unique combination data; for example temperature data were first collected in 1903 reference station L4 has weekly 1988 where nearly 400 planktonic taxa enumerated. While component datasets archived, here we summary database bringing together wide suite observations. provides monthly average values some key pelagic measurements inshore site (50° 15.00' N, 4° 13.02' W approx depth 55 m), offshore E1 02.00' 22.00' 75 m) intermediate L5 10.80' N 18.00' 58 m. In brief, include: water (from 1903); macronutrients 1934); dissolved inorganic carbon total alkalinity 2008); methane nitrous oxide 2011); chlorophyll a 1992); HPLC-derived pigments 1999); <20 μm plankton flow cytometry including bacteria (8 functional groups from 2007); phytoplankton microscopy (6 microplankton mesozooplankton FlowCam 2012), Noctiluca sp. dinoflagellate 1997); 1988); Calanus helgolandicus egg production rates fish larvae Young Fish Trawl survey (4 1924); macrofauna demersal (19 families blue shark, Prionace glauca 1958); 16S alpha diversity sediment column 2012). These varying coverage time resolution. metadata tables describe each set, pointers to source other related sets outputs not compiled here. We summaries main trends seasonality major, climate shifts that revealed over last century. are available Data Archive Seabed Species Habitats (DASSH) via link http://doi.org/10.17031/645110fb81749 (McEvoy Atkinson, 2023). Making fully accessible units both abundance biomass will stimulate variety uptakes. may include uses as an educational resource projects, models budgets or analysis long-term change coupled benthic-pelagic system supporting UK Northeast Atlantic policy management.

Язык: Английский

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