Trophic ecology of fishes in estuaries

Reviews in Fish Biology and Fisheries, Journal Year: 2024, Volume and Issue: 34(4), P. 1371 - 1405

Published: July 20, 2024

Language: Английский

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Wetland topography drives salinity resilience in freshwater tidal ecosystems

Ecological Engineering, Journal Year: 2025, Volume and Issue: 217, P. 107650 - 107650

Published: April 16, 2025

Language: Английский

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Environmental factors shaping fish fauna structure in a temperate mesotidal estuary: periodic insights from the Elbe estuary across four decades

Estuarine Coastal and Shelf Science, Journal Year: 2025, Volume and Issue: unknown, P. 109208 - 109208

Published: March 1, 2025

Language: Английский

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Freshwater faces a warmer and saltier future from headwaters to coasts: climate risks, saltwater intrusion, and biogeochemical chain reactions

Biogeochemistry, Journal Year: 2025, Volume and Issue: 168(2)

Published: March 10, 2025

Abstract Alongside global climate change, many freshwater ecosystems are experiencing substantial shifts in the concentrations and compositions of salt ions coming from both land sea. We synthesize a risk framework for anticipating how change increasing pollution saltwater intrusion will trigger chain reactions extending headwaters to tidal waters. Salt ‘chain reactions,’ where chemical products one biogeochemical reaction influence subsequent ecosystem responses. Different impact drinking water quality, ecosystems, infrastructure, energy food production. Risk factors include salinity sources due amplification pulses interaction precipitation variability human activities. Depending on other factors, retention can range 2 90% across watersheds globally. retained interacts with cycles along flowpaths contributes ‘fast’ ‘slow’ associated temporary acidification long-term alkalinization freshwaters, impacts nutrient cycling, CO , CH 4 N O, greenhouse gases, corrosion, fouling, scaling deoxygenation, contaminant mobilization freshwater-marine continuum. also carbon cycle quantity quality organic matter transported coasts. identify double wide services. Our salinization is based analyses of: (1) temporal trends tributaries freshwaters Chesapeake Bay freshening mainstem over 40 years changes streamflow, sea level rise, watershed pollution; (2) loads major rivers Eastern U.S. increased riverine exports coastal waters sometimes 100-fold greater than forest reference conditions; (3) varying ion concentration-discharge relationships at Geological Survey (USGS) sites U.S.; (4) empirical between specific conductance Na + Cl − SO 2− Ca 2+ Mg K USGS (5) dissolved (DOC) different (6) original experiments demonstrating composition, nutrients metals, alkalinization, oxidation–reduction potentials, deoxygenation non-tidal The activities altering sources, transport, storage, reactivity entire helps anticipate, prevent, manage growing water, health, aquatic life, agriculture,

Language: Английский

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Artificial barriers and estuarine squeeze: A novel assessment of estuarine vulnerability to climate change and sea level rise

Estuarine Coastal and Shelf Science, Journal Year: 2025, Volume and Issue: unknown, P. 109299 - 109299

Published: April 1, 2025

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Transverse variability of residual currents, sediment fluxes, and bed level changes in estuaries with an estuarine dam: Role of estuarine type, dam location, and discharge interval

Continental Shelf Research, Journal Year: 2024, Volume and Issue: 274, P. 105196 - 105196

Published: March 1, 2024

Language: Английский

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Glass eel migration in an urbanized catchment: an integral bottleneck assessment using mark-recapture

Movement Ecology, Journal Year: 2024, Volume and Issue: 12(1)

Published: Feb. 15, 2024

Abstract Diadromous fish such as the European eel ( Anguilla anguilla L.) are hampered by a high density of barriers in estuaries and freshwater systems. Modified fragmented waterbodies lack tidal flows, habitat may be less accessible underutilized compared to free-flowing rivers estuaries. With rising sea levels increased occurrence droughts, number further increase, implying that need study migration areas even become more urgent worldwide. To glass behaviour highly modified water systems, mark-recapture was carried out North Sea Canal (NSC) basin, which drains into via large sluice complex. In total, eight uniquely tagged groups (3,797 eels) were released near complex, 11 (2,663 at inland upstream over 28 km long stretch NSC spring 2018. The complex attracted 10.3 million did not block or delay their immigration. diurnally intensively used coastal ship locks allowings some saltwater intrusion, efficiently facilitated migration. Once NSC, outlets from adjacent polders eels relative proportional discharge pumping stations. average speeds 0.7 km/day (max. 1.8 km/day) measured, this with higher temperatures. Redistribution accumulations other outlet locations observed both downstream directions NSC. Passage success residence time (‘delays’ 4.1–13.7 days) varied between different barriers. Most eel, however, appears settle easily habitats within brackish catchment. This combined an integral assessment successive bottlenecks system.

Language: Английский

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Estuarine dams and weirs: Global analysis and synthesis

Marine Geology, Journal Year: 2024, Volume and Issue: 477, P. 107388 - 107388

Published: Aug. 28, 2024

Language: Английский

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Advancing estuarine box modeling: A novel hybrid machine learning and physics-based approach

Environmental Modelling & Software, Journal Year: 2024, Volume and Issue: unknown, P. 106223 - 106223

Published: Sept. 1, 2024

Language: Английский

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Impact of artificial barriers on benthic macroinvertebrate functional diversity in estuarine ecosystems

Entomological Research, Journal Year: 2024, Volume and Issue: 54(5)

Published: April 29, 2024

Abstract Functional diversity research enhances our understanding of ecosystems and both their functioning responses to environmental variations. This study investigated the biological trait benthic invertebrate communities various conditions in estuarine habitats. We analyzed macroinvertebrate freshwater environments compare characteristics between estuary sites with without artificial barriers. Moreover, we combined taxonomic analyses (species richness, abundance, four community indices) functional indices analyses. The major results are as follows: (i) most important factors shaping species distribution habitats were salinity electrical conductivity; (ii) comparing indices, tidal estuaries revealed that seawater intrusion induced changes dispersion macroinvertebrates; (iii) presence or absence barriers affected traits owing influence specific strategies certain species. Consequently, can lead significant habitat connectivity related ecosystem functions. These findings indicate significantly ecological dynamics ecosystems, thereby affecting distribution, connectivity. Understanding these effects contributes a more comprehensive functionings, it complements existing integrates information about aspects diverse ecosystems.

Language: Английский

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