Lmst

Scientists Sounding Alarm As World’s Largest #Tropical #Lake Turns Green
In #LakeVictoria, #eutrophication and resulting #HAB have been caused by over a century of human activity sending nutrients into lake’s water. #Agricultural #runoff, #sewage, and industrial #wastewater have all been linked to the problem, as well as products of slash and burn practices, biomass burning, and industry being sent up into the atmosphere and dumped down into lake.
https://www.iflscience.com/scientists-sounding-alarm-as-worlds-largest-tropical-lake-turns-green-78617
https://archive.ph/5tHQw

New publication: Temperature Drives #Seagrass Recovery Across the Western North Atlantic. #climatechange #eutrophication #resilience
https://doi.org/10.1111/gcb.70172

Figure 1 in Smulders et al. (2025): "(A) A map of our study sites (B) Seagrass shoot abundance recovery (% compared to pre-disturbance ± SE) in unfertilized plots along a latitudinal gradient. Average annual water temperatures are visualized in color on the bar chart and on the map. Map lines delineate study areas and do not necessarily depict accepted national boundaries."

Lifeless rock pools at Sawtell

After cyclone Alfred whipped up a 'bacteria smoothy' along Australia's east coast the sea foam then merged with a 'flush' from the suburbs. Dislodged smelly sponges at Sawtell beach made breathing and contact impossible. Even without fossil fueled disasters the intertidal zone at the north end of the beach is barren. The rock pools and crevices no longer house sea anemones, crabs, black nerites, limpets, sea stars, mulberry oyster borers, algae, sea anemones, sponges, tube worms, sea stars, oysters, and fish.

Still good enough for hosting 'sports' and advertising events amplified by megaphone so they can be heard at Lord Howe Island too.

#FossilFuels #disasters #runoff #eutrophication #Seafoam #pollution #Nocardiae #sewage #SewageTreatment #NSW #Sawtell #beach #EventSpace #erosion #IntertidalZone #MarineLife #loss #biodiversity

Lifeless rock pools, Sawtell beach, north, NSW

Fossil fuels are heating the oceans, killing fish and corals

"Authorities investigate after thousands of leatherjacket fish wash up on NSW and Queensland beaches Mass fish kill of juvenile leatherjackets along NSW south coast, from Lake Conjola to Narooma, and on Sunshine Coast." >>
https://www.theguardian.com/environment/2025/mar/21/mass-fish-kill-leatherjacket-wash-up-on-nsw-queensland-beaches

Ningaloo and Great Barrier Reef hit by ‘profoundly distressing’ simultaneous coral bleaching events >>
https://www.theguardian.com/environment/2025/mar/23/ningaloo-and-great-barrier-reef-hit-by-profoundly-distressing-simultaneous-coral-bleaching-events
#FossilFuels #ocean #MarineLife #biodiversity #GBR #reef #runoff #pollution #eutrophication #MassMortalities

-> 1) #Warming and #eutrophication are likely to accelerate invasions of smaller species.

Species invasions will succeed especially in warm, nutrient-rich environments. The ongoing environmental changes that make such environments more common will therefore facilitate invasions of animal species into new areas. The model also predicted more frequent invasions of smaller species in all trophic positions.

Early 2024, my 2nd PhD Chapter was published about the key roles of species body sizes and trophic positions in determining the outcomes of #invasivespecies in communities subject to gradients of #temperature and nutrients levels. A pretty cool study with N. Pichon, A. Sentis and D. Boukal.

#warming #eutrophication #foodweb #biodiversity #stability #ecology #metabolicEcology #species #extinction #trophic_cascades #trophic_interactions

Les défis environnementaux de la mer Baltique, tels que l’eutrophisation, la contamination et la surexploitation, menacent gravement la biodiversité et l’économie de la région. Pour préserver cet écosystème unique, l'UE intensifie ses efforts pour une gestion durable des pêches.

https://whatsapp.com/channel/0029VaE5Wl8Dp2Q7vJyg0G30

#BalticSea #FisheriesManagement #SustainableFishing #EURegulations #MarineBiodiversity #Eutrophication #ClimateChange #InvasiveSpecies #Pollution #EUParliament #MarineEcosystems #BlueEconomy

Our results also demonstrate how anthropogenic disturbances (e.g. habitat #eutrophication) can have profound effects on freshwater communities, including sudden population collapses and cascading extinctions.

Our model highlights a diversity of potential collapses that may happen in freshwater systems in response to energetic imbalances in multichannel food webs

A look back at my 1st paper in 2021, when my 1st PhD chapter was out, on the role of body size and mesohabitats productivities in the linkage of #pelagic & #benthic systems, with David Boukal.
#ecology #limnology #eutrophication #foodweb
https://doi.org/10.1111/ele.13772

Our study shows that a ‘symmetry in asymmetries’ is critical to maintain multichannel food webs through two compensatory levels of asymmetry that modulate the energy flows in the different food web channels.

We show that
> 1) temperature-dependent vital rates, especially growth, are more important than temperature-driven changes in body size for community responses to #warming and #eutrophication
> 2) thermal niche mismatches between prey and predator have different effects on community transitions.

New publication: Riverine connectivity modulates elemental fluxes through a 200-year period of intensive anthropic change in the Magdalena River floodplains, Colombia. #biogeochemistry #climatechange #eutrophication #palaeolimnology
https://doi.org/10.1016/j.watres.2024.122633

Graphical abstract Salgado et al. (2024).

New publication: The future of #algalblooms in lakes globally is in our hands. #climatechange #eutrophication #lakewaterquality #FossilFuels
https://doi.org/10.1016/j.watres.2024.122533

Production of meat & #meat products is a key driver of adverse #environment impacts (#emissions, #landuse, #eutrophication, #acidification, #wateruse). Plant-based alternatives have lower GHG #emissions than animal #protein... (1/2) https://doi.org/10.1016/j.fufo.2024.100410 #LCA

New publication: Dual impacts of #hydrology and #damming on #eutrophication: Comparison of two Ramsar #wetlands in the middle #Yangtze #floodplain. #waterlevel #pigments #chironomids #macrophytes
https://doi.org/10.1016/j.jhydrol.2024.131839

New publication: Combined measures in #lake restoration – A powerful approach as exemplified from Lake Groote Melanen (the Netherlands). #eutrophication #climatechange #dredging #biomanipulation #nutrientload
https://doi.org/10.1016/j.watres.2024.122193

Graphical abstract Lürling et al. (2024).

The #foodsystem is a key driver of environmental change. Robust #footprint approaches can estimate the #environment impacts of foods & beverages for GHG #emissions, water- & #landuse, acidification & #eutrophication using life cycle assessments: https://doi.org/10.1016/j.spc.2024.07.002 #LCA (1/2)