Article
Environmental Sciences
Patricio H. Manriquez, Maria Elisa Jara, Claudio P. Gonzalez, Mylene E. Seguel, Paolo Domenici, Sue-Ann Watson, Cristobal Anguita, Cristian Duarte, Katherina Brokordt
Summary: The study found that ocean acidification, ocean warming, and predator cues may lead to neutral, positive, or negative consequences for mussels.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Patricio H. Manriquez, Claudio P. Gonzalez, Maria Elisa Jara, Sue-Ann Watsen, Rodrigo Torres, Paolo Domenici, Cristian Duarte
Summary: We investigated the combined effects of Ocean Warming (OW), Acidification (OA) and predator cues (Non-Consumptive Effects; NCEs) of two predators with contrasting feeding-digestion strategies on the mussel Peru-mytilus pOuratus. We found that mussels exposed to both NCEs exhibited smaller growth in length and buoyant weight. Mussels exposed to starfish-NCEs exhibited smaller wet mass. OW and starfish-NCEs, either alone or combined with snail-NCEs, increased mussel oxygen consumption. The interaction of the three factors affected byssal biogenesis, and the interaction between OW and OA affected clearance rates.
MARINE POLLUTION BULLETIN
(2023)
Article
Limnology
Hannah E. Aichelman, Colleen B. Bove, Karl D. Castillo, Jessica M. Boulton, Alyssa C. Knowlton, Olivia C. Nieves, Justin B. Ries, Sarah W. Davies
Summary: This study investigated the physiological responses of two coral species under various stressors over different exposure durations. Siderastrea siderea showed resistance to end of century pCO(2) and temperature stress, while Pseudodiploria strigosa was more negatively impacted by elevated temperatures. The findings suggest that coral acclimation to global change stressors can vary among species and locations.
LIMNOLOGY AND OCEANOGRAPHY
(2021)
Article
Geosciences, Multidisciplinary
Qiuping Ren, Young-Oh Kwon, Jiayan Yang, Rui Xin Huang, Yuanlong Li, Fan Wang
Summary: Based on multiple observational and reanalysis datasets, it is found that the inhomogeneity of temperature and salinity in the global ocean has increased since 1960, with the increase dominated by anthropogenic forcing. The increase is projected to accelerate in the future.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Review
Environmental Sciences
Donat-P. Haeder, Kunshan Gao
Summary: Aquatic ecosystems contribute 50% of global productivity and play a crucial role in mitigating climate change. Factors such as water temperature, ocean acidification, nutrient availability, deoxygenation, and exposure to UV radiation interact to either enhance or decrease productivity. While ocean warming and deoxygenation may have opposite effects on mitochondrial respiration, they synergistically affect plankton migration and N-2-fixation of diazotrophs. Ocean acidification and elevated pCO(2) have controversial effects on marine primary producers, but they can worsen viral attacks on microalgae and reduce calcification of algal calcifiers when combined with UV radiation. Field observations over a long period of time are limited, but future studies are expected to explore the responses and mechanisms to multiple drivers in different regions.
Article
Environmental Sciences
J. I. Bertucci, J. Bellas
Summary: This study aimed to estimate the potential risk of the combined effect of global change factors and microplastic pollution on the growth and development of the sea urchin P. lividus. The results showed that exposure to decreased pH and microplastic caused a significant decrease in larval growth, while an increase in water temperature added additional stress, resulting in lower growth and altered development of the sea urchin larvae. The combined stress of ocean warming, acidification, and microplastic pollution may threaten sea urchin populations and have a potential impact on coastal ecosystems.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Guancheng Li, Lijing Cheng, Yuying Pan, Gongjie Wang, Hailong Liu, Jiang Zhu, Bin Zhang, Huanping Ren, Xutao Wang
Summary: In this study, a new high-resolution (0.5°×0.5°) salinity dataset from the Institute of Atmospheric Physics is provided and evaluated. Compared to the previous dataset, it shows better representation of regional salinity changes while maintaining the large-scale structure and variability. The dataset is also compared with other observations and international products, showing smaller mean difference and root-mean-square deviation, and exhibiting various salinity patterns and features.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Environmental Sciences
Zhan Ban, Xiangang Hu, Jinghong Li
Summary: The authors utilize machine learning models to identify multifactor tipping points of global marine phytoplankton. The study reveals that temperature and carbon dioxide are the key risks, and predicts that the tipping points of production and resistance in tropical areas will be crossed by 2100.
NATURE CLIMATE CHANGE
(2022)
Article
Biodiversity Conservation
Lester Kwiatkowski, Olivier Torres, Olivier Aumont, James C. C. Orr
Summary: Studies have shown that the influence of increasing atmospheric CO2 and climate change on the marine CO2 system and ecosystems is mainly manifested in the variability of carbonate chemistry, including seasonal and diurnal variations. Models project that the future ocean will experience enhanced diurnal variability of pCO2 and [H+], which may impose higher metabolic costs on marine organisms.
GLOBAL CHANGE BIOLOGY
(2022)
Review
Biochemistry & Molecular Biology
Liam R. Tigert, Cosima S. Porteus
Summary: Climate change is a pressing global issue, with many countries and institutions acknowledging its emergency status. Anthropogenic factors such as excessive CO2 emissions and changes in land use practices are leading to detrimental effects like rising global temperatures, ocean acidification, and hypoxic zones in coastal habitats. Aquatic animals rely heavily on their sensory systems to perceive and respond to their environment, but these systems can be impaired by environmental challenges like ocean acidification, as well as temperature and hypoxia. This review discusses the impacts of these anthropogenic challenges on the sensory systems of fishes and identifies gaps in knowledge, calling for immediate action.
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY
(2023)
Editorial Material
Multidisciplinary Sciences
Jeff Tollefson
Summary: A New York experiment is part of a commercial race to develop ocean-based technologies to extract carbon dioxide from the atmosphere.
Article
Limnology
Kristy J. Kroeker, Emily M. Donham, Kate Vylet, Joseph K. Warren, Julia Cheresh, Jerome Fiechter, Jan Freiwald, Yuichiro Takeshita
Summary: In upwelling systems, fluctuations in seawater pH, dissolved oxygen (DO), and temperature can lead to exposure to extreme conditions for marine species. This study characterized the variability and covariance among these drivers using a time series of observations and a simulation for the California coast. It found that sites with strong upwelling had the greatest intensity and duration of exposure to extreme pH and DO conditions, while sites with weak upwelling had higher and more variable temperature.
LIMNOLOGY AND OCEANOGRAPHY
(2023)
Article
Environmental Sciences
Cara C. Schweitzer, Carolina A. Bonin, Christopher Magel, Thomas P. Hurst, Andrij Z. Horodysky
Summary: This study investigated the differential expression of miRNAs in Arctic cod exposed to elevated CO2 levels. It identified 17 miRNAs associated with reduced auditory performance, 12 of which showed significant differential expression in high CO2 conditions. Target gene predictions suggested these miRNAs are involved in inner ear maintenance, hair cell degradation, age-related hearing loss, neural inflammation, and injury.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Environmental Sciences
Carsten Spisla, Jan Taucher, Michael Sswat, Hennrike Wunderow, Peter Kohnert, Catriona Clemmesen, Ulf Riebesell
Summary: This study investigates the effects of ocean acidification on the interaction between Hydrozoa and fish larvae. It found that under ocean acidification conditions, the abundance of Hydrozoa increased but its biomass decreased. At the same time, the survival rates of Atlantic herring larvae were higher. These results suggest that ocean acidification indirectly affects the Hydrozoa-fish relationship through changes in the phyto-, micro-, and mesoplankton community.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Environmental Sciences
Claudio P. Gonzalez, Mario Edding, Fadia Tala, Rodrigo Torres, Patricio H. Manriquez
Summary: Understanding the effects of OA and warming trend on marine organisms, particularly on early reproductive traits, is vital for predicting their response to climate change. In this study, exposure to elevated pCO(2) and higher temperatures had significant impacts on the sorus photosynthetic performance and germination rate of meiospores in Lessonia trabeculata, indicating potential threats to the species' establishment and ecosystem functioning.
ENVIRONMENTAL POLLUTION
(2021)
Article
Ecology
Cristian J. Monaco, Ivan Nagelkerken, David J. Booth, Will F. Figueira, Bronwyn M. Gillanders, David S. Schoeman, Corey J. A. Bradshaw
Summary: This study used population-abundance time series at the leading edge of an expanding species' range to evaluate the contribution of density feedback and stochastic environmental drivers to the population growth rates of different life stages of a tropical damselfish. The results indicated that density feedback negatively affected the growth of tropical settlers and juveniles, and including stochastic effects doubled the deviance explained by the models, confirming the importance of temperature in the dynamics of range-shifting species responding to climate change.
JOURNAL OF ANIMAL ECOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Ivan Nagelkerken, Tiphaine Alemany, Julie M. Anquetin, Camilo M. Ferreira, Kim E. Ludwig, Minami Sasaki, Sean D. Connell
Summary: Ocean acidification affects species populations and biodiversity through direct negative effects on physiology and behavior. The study shows that at a temperate rocky reef, even though ocean acidification acts as a direct stressor, it can indirectly increase fish energy budgets to stimulate reproduction without impacting physiological homeostasis. This positive indirect effect of elevated CO2 was observed for generalistic and competitively dominant fish species, but not for subordinate and specialized species, ultimately leading to potential shifts in species communities in the future ocean.
Article
Ecology
Cristian J. Monaco, David J. Booth, Will F. Figueira, Bronwyn M. Gillanders, David S. Schoeman, Corey J. A. Bradshaw, Ivan Nagelkerken
Summary: The study found that tropical species richness has increased in temperate ecosystems in recent years, with the richness of tropical vagrant species related to sea-surface temperatures experienced by both local vagrants and their source populations. Additionally, there was a signal from the El Nino-Southern Oscillation, with species turnover and richness peaking during the strong La Nina event in 2010-2011.
JOURNAL OF BIOGEOGRAPHY
(2021)
Article
Environmental Sciences
Ericka O. C. Coni, Ivan Nagelkerken, Camilo M. Ferreira, Sean D. Connell, David J. Booth
Summary: Climate warming is shifting temperate zones towards becoming more tropical, but ocean acidification may reduce sea urchin populations and the formation of sea urchin barrens, thus buffering the tropicalization process.
NATURE CLIMATE CHANGE
(2021)
Article
Ecology
Michael Bradley, Ivan Nagelkerken, Ronald Baker, Michael Travers, Marcus Sheaves
Summary: This study examined the impact of habitat associations on fish utilization of mangroves, finding that environmental factors and structuring forces such as salinity, distance to reefs, and tidal amplitude significantly affect fish assemblage structure. Local environmental context plays a key role in explaining similarities and differences in mangrove association by fishes, with strong consistencies in taxonomic composition observed despite geographic separation. The findings suggest that the effects of local context on habitat suitability can play out over biogeographical scales, and global similarities in fauna-habitat associations may be partially explained by comparable environmental contexts, with important management implications.
Article
Biodiversity Conservation
Jonathan Y. S. Leung, Ivan Nagelkerken, Jennifer C. A. Pistevos, Zonghan Xie, Sam Zhang, Sean D. Connell
Summary: Ocean acidification and warming have an impact on the mechanical properties of shark teeth, but when combined together, the durability of teeth increases. The teeth are mainly made of fluorapatite, with increased fluoride content under acidified seawater, which may enhance the durability of the teeth.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Biodiversity Conservation
Angus Mitchell, David J. Booth, Ivan Nagelkerken
Summary: The study found that ocean acidification reduced shoal cohesion, with mixed-species shoals showing lower cohesion than temperate-only shoals under climate stressors. Tropical fish became bolder under ocean acidification, while temperate fish became bolder with increasing temperature, but ocean acidification dampened the boldness of temperate fish.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Ecology
Ericka O. C. Coni, David J. Booth, Camilo M. Ferreira, Ivan Nagelkerken
Summary: In response to human-mediated ocean warming, coral-reef fishes are shifting poleward and modifying their behavioral niches. Tropical fishes in novel temperate ranges are adjusting their behavior and increasing niche breadth, while native temperate species are also modifying their niches towards subtropical ranges. Behaviors related to feeding and shoaling play a significant role in niche modifications for both tropical and temperate species.
JOURNAL OF ANIMAL ECOLOGY
(2022)
Article
Environmental Sciences
Almendra Rodriguez-Dominguez, Sean D. Connell, Ericka O. C. Coni, Minami Sasaki, David J. Booth, Ivan Nagelkerken
Summary: This study investigates the frequency distribution of behavioral and physiological phenotypic traits in fish under natural and controlled laboratory conditions. The results show that ocean acidification leads to a decrease in shy phenotypes, while ocean warming results in both a decrease and increase of bold phenotypes. The variance within populations is reduced in natural conditions compared to control conditions, suggesting potential reshaping of species interactions. However, these phenotypic alterations do not affect fish body condition.
Article
Biodiversity Conservation
Jingliang Kang, Ivan Nagelkerken, Jodie L. Rummer, Riccardo Rodolfo-Metalpa, Philip L. Munday, Timothy Ravasi, Celia Schunter
Summary: Ocean acidification affects different fish species in different ways, with some species showing the ability to adapt and cope with elevated pCO(2) levels.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Biology
Ericka O. C. Coni, David J. Booth, Ivan Nagelkerken
Summary: As climate warms, tropical species are expanding to temperate ecosystems, and adopting antipredator strategies such as increased risk aversion and decreased activity level to maintain fitness. Range-extending tropical fishes did not experience a decline in body condition or feeding rate in their novel temperate ranges.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2022)
Article
Biodiversity Conservation
Ivan Nagelkerken, Sean D. Connell
Summary: The widely accepted paradigm of climate change altering global marine biodiversity remains difficult to test due to limitations of laboratory systems and common biodiversity metrics. This study examines the prevalence and sensitivity of global responses in biodiversity and community-level change to future climate (acidification and warming) through investigations at volcanic CO2 vents and laboratory mesocosms. The findings reveal globally replicable patterns of species replacements and community reshuffling under ocean acidification, highlighting the limitations of common biodiversity metrics in detecting such changes.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Marine & Freshwater Biology
Angus Mitchell, Chloe Hayes, David J. Booth, Ivan Nagelkerken
Summary: Climate-driven invasions of marine ecosystems by range-extending fishes can lead to novel ecological interactions and affect the behavior and growth of native species. In this study, the effects of novel species interactions, ocean acidification, and projected future temperatures on the behavior and growth of tropical and temperate fishes were evaluated in a laboratory experiment. The results showed that tropical fish became more active, aggressive, and grew faster in future summers, but showed reduced aggression, boldness, feeding, and growth rates in future winters compared to current-day summer temperatures. Ocean acidification also increased the activity of tropical fish. In contrast, temperate fish behavior was unaffected by climate treatments but showed significantly faster growth rates in future winters. These findings suggest that future winter conditions in temperate ecosystems may limit the performance of range-extending fishes and slow down tropicalization in higher latitudes.
Article
Biodiversity Conservation
Caroline Wanjiru, Ivan Nagelkerken, Sonja Rueckert, William Harcourt, Mark Huxham
Summary: Mangroves support diverse fish and crustacean communities, but their abundance and diversity vary spatially and temporally. The characteristics of mangrove forests and the seascape context play important roles in shaping the animal communities. Forest complexity and seagrass metrics were strong predictors of site differences, but their influences on fish and crustaceans were opposite. Zoning for management should consider the different habitat preferences of fish and crustaceans to maximize their benefits.
JOURNAL OF APPLIED ECOLOGY
(2023)
Article
Environmental Sciences
Daniel Saavedra-Hortua, Ivan Nagelkerken, Lina M. Estupinan-Suarez, Lucy Gwen Gillis
Summary: This study aimed to investigate the drivers that mediate carbon and nitrogen stocks in intertidal coastal seascapes, including ecosystem connectivity, surface area, and standing vegetation biomass. The results showed that connected mangrove and seagrass ecosystems had higher carbon and nitrogen storage than isolated ecosystems. Mangroves and macroalgal beds were identified as potential critical contributors of nitrogen and carbon to other ecosystems. Considering seascape-level connectivity is crucial for managing and improving critical ecosystem services.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)