Navigating the nexus: climate dynamics and microplastics pollution in coastal ecosystems

Environmental Research, Год журнала: 2024, Номер 252, С. 118971 - 118971

Опубликована: Апрель 19, 2024

Язык: Английский

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Between shells and seas: Effects of ocean acidification on calcification and osmoregulation in yellow clam (Amarilladesma mactroides)

Marine Environmental Research, Год журнала: 2025, Номер 207, С. 107083 - 107083

Опубликована: Март 10, 2025

Язык: Английский

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Major loss of coralline algal diversity in response to ocean acidification

Global Change Biology, Год журнала: 2021, Номер 27(19), С. 4785 - 4798

Опубликована: Июль 16, 2021

Abstract Calcified coralline algae are ecologically important in rocky habitats the marine photic zone worldwide and there is growing concern that ocean acidification will severely impact them. Laboratory studies of these simulated conditions have revealed wide variability growth, photosynthesis calcification responses, making it difficult to assess their future biodiversity, abundance contribution ecosystem function. Here, we apply molecular systematic tools natural gradients seawater carbonate chemistry on biodiversity Mediterranean NW Pacific, link this evolutionary history evaluate potential abundance. We found a decrease taxonomic diversity with increasing more than half species lost high p CO 2 conditions. Sporolithales oldest order (Lower Cretaceous) diversified when favoured low Mg calcite deposition; less diverse today was most sensitive acidification. Corallinales were also reduced cover but several survived at ; recent originated aragonite deposition. The sharp decline thickness algal deposits highlighted lower fitness response Reductions emissions needed limit risk losing diversity.

Язык: Английский

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Simplification, not “tropicalization”, of temperate marine ecosystems under ocean warming and acidification

Global Change Biology, Год журнала: 2021, Номер 27(19), С. 4771 - 4784

Опубликована: Июль 16, 2021

Abstract Ocean warming is altering the biogeographical distribution of marine organisms. In tropics, rising sea surface temperatures are restructuring coral reef communities with sensitive species being lost. At divide between temperate and tropical communities, causing macroalgal forest loss spread corals, fishes other species, termed “tropicalization”. A lack field research into combined effects ocean acidification means there a gap in our ability to understand plan for changes coastal ecosystems. Here, we focus on tropicalization trajectory ecosystems becoming coral‐dominated systems. We conducted surveys situ transplants at natural analogues present future conditions under (i) (ii) both transition zone kelp show that increased herbivory by warm‐water exacerbates negates any benefits range extending corals growth physiology latitudes. Our data that, as ratchet up, lose forests but do not gain scleractinian corals. plus leads overall habitat shift simple turf‐dominated ecosystems, rather than complex tropicalized systems often seen alone. Simplification habitats CO 2 levels cascades through ecosystem could have severe consequences provision goods services.

Язык: Английский

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Ocean acidification and climate change

Climate Change, Год журнала: 2021, Номер unknown, С. 251 - 279

Опубликована: Янв. 1, 2021

Oceans have the capacity to absorb large amounts of carbon dioxide (CO2) because CO2 dissolves and reacts in seawater form bicarbonate (HCO3−) protons (H+). About a quarter third emitted into atmosphere from burning fossil fuels, cement manufacturing, land use changes has been absorbed by oceans. Over thousands years, pH buffered bases, such as carbonate ions (CO32−). However, rate at which is currently being oceans too rapid be sufficiently prevent substantial ocean CO32−. As consequence, relative concentrations CO2, HCO3–, CO32−, altered. Since preindustrial times, decreased global average 0.1. It estimated that unmitigated emissions will cause decrease much 0.4 2100 0.77 2300. These most greatest chemistry experienced marine organisms over past tens millions years. Laboratory experiments, field observations natural CO2-rich "hot spots," studies previous acidification Earth's history indicate these are threat survival many but particularly CaCO3 produce shells, tests, skeletons. The only way reducing impacts on scale through urgent reductions anthropogenic emissions. Ocean key argument for united societal action ongoing climate change negotiations.

Язык: Английский

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Reduced predation pressure as a potential driver of prey diversity and abundance in complex habitats

npj Biodiversity, Год журнала: 2023, Номер 2(1)

Опубликована: Янв. 6, 2023

Habitat complexity is positively associated with biodiversity and abundance often a focus of habitat restoration programmes, however, the mechanisms underlying these relationships are not yet resolved. In this Perspective, we postulate that reduced predation pressure in complex habitats could contribute to increased prey diversity abundance. Based on systematic review meta-analysis experimental studies, consistent across freshwater marine ecosystems, field laboratory experiments, different hunting modes predators, numbers species. However, effects less clear terrestrial ecosystems. Easing pressure, conjunction resources for prey, help explain high found habitats. This knowledge can be used ecological engineering projects maximise species gains.

Язык: Английский

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Modeling Dynamic Processes in the Black Sea Pelagic Habitat—Causal Connections between Abiotic and Biotic Factors in Two Climate Change Scenarios

Sustainability, Год журнала: 2024, Номер 16(5), С. 1849 - 1849

Опубликована: Фев. 23, 2024

The paper contributes to the Sustainable Development Goals (SDGs) targeting Life Below Water by introducing user-friendly modeling approaches. It delves into impact of abiotic factors on first two trophic levels within marine ecosystem, both naturally and due human influence. Specifically, study examines connections between environmental parameters (e.g., temperature, salinity, nutrients) plankton along Romanian Black Sea coast during warm season over a decade. research develops models forecast zooplankton proliferation using machine learning (ML) algorithms gathered data. temperature significantly affects copepods “other groups” densities season. Conversely, no discernible is observed dinoflagellate Noctiluca scintillans blooms. Salinity fluctuations notably influence typical phytoplankton proliferation, with phosphate concentrations primarily driving widespread explores scenarios for forecasting growth: Business as Usual, predicting modest increases in constant nutrient levels, Mild scenario, projecting substantial salinity alongside significant decrease 2042. findings underscore high under scenarios, particularly pronounced second surpassing around 70%. These findings, indicative eutrophic potential implications altered ecosystem health, aligning SDGs focused Water.

Язык: Английский

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Harnessing eDNA metabarcoding to investigate fish community composition and its seasonal changes in the Oslo fjord

Scientific Reports, Год журнала: 2024, Номер 14(1)

Опубликована: Май 2, 2024

Abstract In the face of global ecosystem changes driven by anthropogenic activities, effective biomonitoring strategies are crucial for mitigating impacts on vulnerable aquatic habitats. Time series analysis underscores a great significance in understanding dynamic nature marine ecosystems, especially amidst climate change disrupting established seasonal patterns. Focusing Norway's Oslo fjord, our research utilises eDNA-based monitoring temporal biodiversity during one year period, with bi-monthly sampling along transect. To increase robustness study, taxonomic assignment comparing BLAST+ and SINTAX approaches was done. Utilising MiFish Elas02 primer sets, study detected 63 unique fish species, including several commercially important species. Our findings reveal substantial read abundance specific migratory cycles, highlighting efficacy eDNA metabarcoding composition characterization. Seasonal dynamics certain species exhibit clear patterns, emphasising method's utility unravelling ecological complexities. emerges as cost-effective tool considerable potential community conservation purposes environments like contributing valuable insights informed management strategies.

Язык: Английский

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Current and Near-Term Earth-Observing Environmental Satellites, Their Missions, Characteristics, Instruments, and Applications

Sensors, Год журнала: 2024, Номер 24(11), С. 3488 - 3488

Опубликована: Май 28, 2024

Among the essential tools to address global environmental information requirements are Earth-Observing (EO) satellites with free and open data access. This paper reviews those EO from international space programs that already, or will in next decade so, provide of importance sciences describe Earth’s status. We summarize factors distinguishing pioneering placed over past half century, their links modern ones, changing priorities for spaceborne instruments platforms. illustrate broad sweep instrument technologies useful observing different aspects physio-biological surface, spanning wavelengths UV-A at 380 nanometers microwave radar out 1 m. a background on technical specifications each mission its primary instrument(s), types collected, examples applications these observations. websites additional details instrument, history context behind measurements, about design, specifications, measurements.

Язык: Английский

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Internet of Things for Water Sustainability

Internet of things, Год журнала: 2024, Номер unknown, С. 113 - 145

Опубликована: Янв. 1, 2024

Язык: Английский

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