Ocean acidification and seasonal temperature extremes combine to impair the thermal physiology of a sub-Antarctic fish

Lattuca, María Eugenia; Vanella, Fabián Alberto; Malanga, Gabriela; Rubel, Maximiliano D.; Manríquez, Patricio H.; Torres, Rodrigo; Alter, Katharina; Marras, Stefano; Peck, Myron A.; Domenici, Paolo; Fernández, Daniel A.

doi:10.1016/j.scitotenv.2022.159284

Cited by 3 publications

(1 citation statement)

References 87 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Almost no information exists on the impact of global warming effects (sea warming, glacial retreat, ocean acidification) on communities in these ecosystems, though warming of mid-water and bottom layers have been shown at a regional scale (Franco et al 2020). Yet in Beagle Channel recent experimental studies have tested the tolerance of fishes to scenarios of sea warming and/or acidification suggesting potential metabolic impacts on species (Lattuca et al 2018;Lattuca et al 2023).…”

Section: Gaps and Future Perspectivesmentioning

confidence: 99%

The response of trophic interaction networks to multiple stressors in a marine latitudinal gradient of the Southern Hemisphere

Marina,

Saravia,

Rodriguez

et al. 2024

Preprint

View full text Add to dashboard Cite

Ecological networks offer valuable insights into community structure, key species identification, and ecosystem management for biodiversity conservation. Understanding how these networks react to environmental and anthropogenic stressors, especially along geographical gradients, is of increasing interest. This review presents a pioneering analysis of stressor responses in marine food webs from the southwest Atlantic to the Antarctic (45 - 78ºS), encompassing areas such as San Jorge Gulf, Beagle Channel, Burdwood Bank, Scotia Sea, Potter Cove, and the Weddell Sea in Antarctica. Our objectives are to: 1) describe the structure of marine food webs along this axis using a network approach; 2) identify predominant environmental and anthropogenic stressors affecting each ecosystem; and 3) summarize observed food web changes and hypothesize on stressor impacts. Our collaborative team, comprising regional experts and global authorities on high-latitude marine food webs and stressor effects, ensures a comprehensive and credible literature review. We assessed the effects of stressors primarily at the species level, with notable exceptions like fisheries in San Jorge Gulf. Hypotheses for each study area were formulated considering: a) stressors; b) impacted parameters; c) node-level species properties; and d) network-level food web properties. Global warming emerges as the most common stressor across the gradient, except in the Beagle Channel and Burdwood Bank, where alien species introduction and fisheries are more influential, respectively. We offer specific hypotheses on how warming may affect food webs. Our findings highlight the benefits of a network approach in understanding and predicting stressor effects in Southern Hemisphere marine ecosystems. This approach provides a holistic understanding of ecological networks, enhances our ability to identify key species and interactions, and offers insights for ecosystem management and conservation in the face of various stressors.

show abstract

Section: Gaps and Future Perspectivesmentioning

confidence: 99%

The response of trophic interaction networks to multiple stressors in a marine latitudinal gradient of the Southern Hemisphere

Marina,

Saravia,

Rodriguez

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

Exposure to alkaline water reduces thermal tolerance, but not thermal plasticity, in brook stickleback (Culaea inconstans) collected from an alkaline lake

Zimmer,

Woods,

Glover

et al. 2024

Hydrobiologia

View full text Add to dashboard Cite

Column‐Compound Extremes in the Global Ocean

Wong,

Münnich,

Gruber

2024

AGU Advances

View full text Add to dashboard Cite

Marine extreme events such as marine heatwaves, ocean acidity extremes and low oxygen extremes can pose a substantial threat to marine organisms and ecosystems. Such extremes might be particularly detrimental (a) when they are compounded in more than one stressor, and (b) when the extremes extend substantially across the water column, restricting the habitable space for marine organisms. Here, we use daily output of a hindcast simulation (1961–2020) from the ocean component of the Community Earth System Model to characterize such column‐compound extreme events (CCX), employing a relative threshold approach to identify extremes and requiring them to extend vertically over at least 50 m. The diagnosed CCX are prevalent, occupying worldwide in the 1960s about 1% of the volume contained within the top 300 m. Over the duration of our simulation, CCX become more intense, last longer, and occupy more volume, driven by the trends in ocean warming and ocean acidification. For example, the triple CCX expanded 39‐fold, now last 3‐times longer, and became 6‐times more intense since the early 1960s. Removing this effect with a moving baseline permits us to better understand the key characteristics of CCX, revealing a typical duration of 10–30 days and a predominant occurrence in the Tropics and high latitudes, regions of high potential biological vulnerability. Overall, the CCX fall into 16 clusters, reflecting different patterns and drivers. Triple CCX are largely confined to the tropics and the North Pacific and tend to be associated with the El Niño‐Southern Oscillation.

show abstract

Ocean acidification and seasonal temperature extremes combine to impair the thermal physiology of a sub-Antarctic fish

Cited by 3 publications

References 87 publications

The response of trophic interaction networks to multiple stressors in a marine latitudinal gradient of the Southern Hemisphere

The response of trophic interaction networks to multiple stressors in a marine latitudinal gradient of the Southern Hemisphere

Exposure to alkaline water reduces thermal tolerance, but not thermal plasticity, in brook stickleback (Culaea inconstans) collected from an alkaline lake

Column‐Compound Extremes in the Global Ocean

Contact Info

Product

Resources

About