Article
Environmental Sciences
William W. L. Cheung, Eva Maire, Muhammed A. Oyinlola, James P. W. Robinson, Nicholas A. J. Graham, Vicky W. Y. Lam, M. Aaron Macneil, Christina C. Hicks
Summary: Seafood is an important source of micronutrients for human health. Availability of iron, calcium, and omega-3 from seafood for direct consumption has increased in the past, but protein availability has stagnated. Climate change is projected to disproportionately decrease nutrient availability, particularly in tropical low-income countries.
NATURE CLIMATE CHANGE
(2023)
Article
Environmental Sciences
Carlos Sanz-Lazaro, Nuria Casado-Coy, Edwin Moncayo Calderero, Ulises Avendano Villamar
Summary: Marine aquaculture is expanding offshore, where the environmental interactions are not yet fully understood. A benthic environmental assessment of an offshore fish farm on unconsolidated sediment showed significant changes in physicochemical variables under the fish farm. The physicochemical variables in offshore areas were notably different from those found in unaffected coastal areas, suggesting the need for adapted environmental classifications in offshore areas. Despite the low degree of impact detected, careful determination of organic matter carrying capacity is necessary to avoid environmental drawbacks in offshore sediments. Further research is needed to obtain conclusive results on the environmental impact of offshore aquaculture compared to other types of aquaculture.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Agriculture, Multidisciplinary
Ping Yang, Guanghui Zhao, Chuan Tong, Kam W. Tang, Derrick Y. F. Lai, Ling Li, Chen Tang
Summary: Aquaculture can lead to serious environmental pollution in coastal areas. Nutrient budget analysis in land-based aquaculture ponds can help understand the fate of nutrients and aid sustainable management. In this study, nitrogen and phosphorus budgets in shrimp monoculture ponds were analyzed, showing commercial feed as the main input and biomass harvesting and sedimentation as major outputs. Drainage from the ponds contributed to nutrient discharge into the river estuary, and unresolved factors like volatilization and seepage were identified affecting the accuracy of the nutrient budgets.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2021)
Article
Agriculture, Multidisciplinary
Yini Pu, Mi Zhang, Lei Jia, Zhen Zhang, Wei Xiao, Shoudong Liu, Jiayu Zhao, Yanhong Xie, Xuhui Lee
Summary: Enclosure lake aquaculture leads to lake eutrophication and CH4 emission. Ecological restoration reduces CH4 emission, but it remains higher than lakes unaffected by aquaculture.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2022)
Article
Environmental Sciences
Craig S. Young, Laine H. Sylvers, Stephen J. Tomasetti, Andrew Lundstrom, Craig Schenone, Michael H. Doall, Christopher J. Gobler
Summary: Coastal zones can be affected by acidification due to the influx of atmospheric CO2 and other sources of acidity. However, the photosynthetic action of seaweeds, particularly in aquaculture, may buffer against coastal ocean acidification. In this study, it was found that co-culturing bivalves with kelp mitigated the negative effects of elevated pCO(2), resulting in improved growth rates. This suggests that integrated, multi-trophic aquaculture with bivalves and kelp could be beneficial in acidification scenarios.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
Enhui Liao, Laure Resplandy, Junjie Liu, Kevin W. Bowman
Summary: The El Nino Southern Oscillation (ENSO) is a major driver of atmospheric CO2 interannual variability and affects ocean CO2 flux. Earth system models project weaker ocean CO2 flux anomalies in the future, mainly due to stronger compensation in ocean biogeochemical changes and a reduced influence of ENSO on CO2 transfer.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Oceanography
A. S. Mountford, M. A. Morales Maqueda
Summary: Plastic pollution is widespread in the marine environment, with emerging research on microplastic pollution in Antarctic sea ice. Sea ice serves as an important seasonal sink for microplastics, with positively buoyant microplastics dominating Arctic sea ice and neutrally buoyant plastics dominating Southern Ocean sea ice. Further observational data is needed to understand the transport and accumulation of microplastics in the Southern Ocean.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2021)
Article
Environmental Sciences
David W. Fredriksson, Adam T. T. St Gelais, Tobias Dewhurst, Struan Coleman, Damian C. Brady, Barry Antonio Costa-Pierce
Summary: A field study was conducted in Saco Bay, Maine USA to assess mooring loads on kelp farms. The results showed that the mooring tensions were mainly influenced by east-southeast currents rather than waves. This study provides valuable data for optimizing kelp farm designs and conducting numerical modeling validation.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Oceanography
M. D. du Plessis, S. Swart, L. C. Biddle, I. S. Giddy, P. M. S. Monteiro, C. J. C. Reason, A. F. Thompson, S-A Nicholson
Summary: This study investigates the impact of buoyancy forcing and wind-driven processes on mixed layer thermohaline variability in three Southern Ocean regions. The results show that heat flux is the main driver of buoyancy gain, and shallow mixed layers and strong stratification enhance buoyancy gain in certain regions. The study also reveals the importance of surface forcing occurring between 1 and 10 days on water mass transformation in the Southern Ocean.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2022)
Article
Environmental Sciences
Sudhakaran Syamala Prijith, Karri Srinivasarao, Chaluparambil Balan Lima, Biswadip Gharai, Pamaraju Venkata Narasimha Rao, Mullapudi Venkata Rama SeshaSai, Muvva Venkata Ramana
Summary: The study reveals that land use and land cover changes in Northwest India can affect regional meteorology, leading to a decrease in surface air temperature, an increase in relative humidity, and changes in other meteorological parameters.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Multidisciplinary Sciences
Quentin D. Read, Kelly L. Hondula, Mary K. Muth
Summary: Diet shifts and food waste reduction can help reduce the land and biodiversity footprint of the food system. Adopting healthy and sustainable diets can reduce the biodiversity footprint of food consumption, while reducing food waste has a bigger impact on global biodiversity. However, increased consumption of foods grown in global biodiversity hotspots offsets some of these reductions. The adoption of US-style and Mediterranean-style diets increases the biodiversity threat.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Environmental Sciences
Bing Li, Rui Jia, Yiran Hou, Jian Zhu
Summary: This study investigated the purification effect of a commercial-scale integrated constructed wetland (CW) system on effluents from inland fish farming. Results showed that the system significantly improved water quality by reducing nitrogen, phosphorus, ammonia nitrogen, nitrate nitrogen, nitrite nitrogen, and chemical oxygen demand in the effluents, meeting the water quality standards in China.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Engineering, Multidisciplinary
Zongyu Gao, Chengdong Liu, Kangsen Mai, Gen He
Summary: Feeding plays a crucial role in animal growth and health maintenance, but the underlying mechanisms of dietary performance have long been mysterious. Recent studies have shown that nutrients act as signals that can be detected by cells and organisms, influencing gene expression and metabolism. Although progress has been made in using nutrient-sensing signals for drug discovery and disease control, the application of nutrient sensing in landfarmed animals and aquaculture, particularly the control of major nutrients like proteins, lipids, and carbohydrates, is still in its early stages. Therefore, this article provides a perspective on future research and applications of nutrient sensing in animal nutrition.
Article
Engineering, Civil
Tong Peng, Jianan Liu, Xueqing Yu, Fenfen Zhang, Jinzhou Du
Summary: Submarine groundwater discharge is a significant component of chemical fluxes in coastal ecosystems. A quantitative study of a Chinese aquaculture bay, Xiangshan Bay, reveals substantial spatial variability in SGD rates and identifies aquaculture activities and urbanization as major factors influencing the discharge.
JOURNAL OF HYDROLOGY
(2022)
Article
Environmental Sciences
Eileen H. Bates, Lindsay Alma, Tamas Ugrai, Alexander Gagnon, Michael Maher, Paul McElhany, Jacqueline L. Padilla-Gamino
Summary: The study compared trace metal concentrations in tissue of Mediterranean mussels and Olympia oysters at different sites in Puget Sound, Washington to understand differences in bioaccumulation based on species, location, and shellfish size. The research found that metal concentrations in shellfish varied between sites and were influenced by factors such as water chemistry and shellfish size.
FRONTIERS IN MARINE SCIENCE
(2021)