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Cyanobacteria and aquatic ecosystem dynamics across 28,000 years of environmental changes in subtropical North America Cyanobacteria and aquatic ecosystem dynamics across 28,000 years of environmental changes in subtropical North America

Ecological pressures on aquatic ecosystems have increased over recent centuries due to human activities and climate change. However, contextualizing ecosystem deterioration is often challenging due to limited knowledge of environmental changes over millennial timescales. Subtropical Carolina bays in North Carolina, USA, have remained unglaciated, preserving paleolimnological records that...
Authors
Savvas Paradeisis-Stathis, Matthew N. Waters, Debra A. Willard, Richard S. Vachula

Correction to “Stable isotope reference materials and scale definitions – outcomes of the 2024 IAEA experts meeting” Correction to “Stable isotope reference materials and scale definitions – outcomes of the 2024 IAEA experts meeting”

This article corrects the following: Camin, F., Besic, D., Brewer, P., Allison, C., Coplen, T., Dunn, P., Gehre, M., Gröning, M., Meijer, H.-A.-J, Hélie, J.-F., Iacumin, P., Kraft, R., Krajnc, B., Kümmel, S., Lee, S., Meija, J., Mester, Z., Mohn, J., Moossen, H., Qi, H., Skrzypek, G., Sperlich, P., Viallon, J., Wassenaar, L. and Wielgosz, R. (2025). Stable Isotope Reference Materials and...
Authors
Federica Camin, D. Besic, P. J. Brewer, C. E Allison, Tyler B. Coplen, P. J. Dunn, M. Gehre, M. Gröning, H.A. J. Meijer, J. F. Hélie, P. Iacumin, R. Kraft, B. Krajnc, S. Kümme, S.S. Lee, J. Meija, Z. Mester, J. Mohn, H. Moossen, Haiping Qi, G. Skrzypek, P. Sperlich, J. Viallon, L. Wassenaar, R. Wielgosz

Differences among runs of Chinook Salmon in routing probability at the Georgiana Slough-Sacramento River junction Differences among runs of Chinook Salmon in routing probability at the Georgiana Slough-Sacramento River junction

The survival of juvenile Chinook Salmon (Oncorhynchus tshawytscha) depends on the specific migration route they take through the Sacramento–San Joaquin Delta. Factors such as flow magnitude, flow direction, and distribution of fish across the channel significantly affect the likelihood of their entering routes with lower survival probabilities. Management strategies to mitigate the entry...
Authors
Summer M. Burdick, Russell W. Perry, Maggie Jo Raboin, John Plumb

Evaluating drivers of environmental change in a lake sediment core: Insights from spectroscopic metrics of water-extractable organic matter and stable carbon isotopes Evaluating drivers of environmental change in a lake sediment core: Insights from spectroscopic metrics of water-extractable organic matter and stable carbon isotopes

Freshwater lakes play a critical role in the global carbon cycle by storing and transforming organic matter (OM) from both terrestrial and aquatic sources. Small lakes in northern temperate regions, despite their limited surface area, disproportionately influence regional carbon budgets. Buried sediments integrate OM inputs over time and archive ecosystem responses to natural and...
Authors
A.C. Collins, Sabina R. Gifford, Morgan Schaller, Aron Stubbins, Sasha Wagner, Kevin Alexander Ryan

Laboratory measurements of rise velocity for individual, hydrate-free and hydrate-coated gas bubbles in water Laboratory measurements of rise velocity for individual, hydrate-free and hydrate-coated gas bubbles in water

Tracking methane transport becomes more complicated in the deep ocean where seafloor release of methane gas bubbles occurs at the high pressures and low temperatures conducive to hydrate formation on bubble surfaces. Gas hydrate formation can make the bubble surface rigid, preventing the dynamic interplay between bubble size, shape and rise velocity that gas-transport models commonly...
Authors
Alexandra M. Padilla, William F. Waite

Summertime methane and carbon dioxide emission rates and associated variables from a national-scale survey of 146 reservoirs in the United States Summertime methane and carbon dioxide emission rates and associated variables from a national-scale survey of 146 reservoirs in the United States

Reservoirs are globally important sources of greenhouse gases, but the magnitude of their emissions is highly uncertain. Here we present data for 146 reservoirs from two surveys of reservoir methane and carbon dioxide emissions, one at the regional scale in the midwestern United States and one at the national scale in the conterminous United States, plus data from one reservoir in...
Authors
Jake J. Beaulieu, Bridget R. Deemer, R.M. Pilla, Kenneth J. Forshay, J.W. Hollister, S.A. Jacobs, J.T. Walker, P.T. Leinenbach, Natalie A. Griffiths, S.D. Shivers, A.O. Tatters, K.N. Buckler, J.W. Corra, Ryan W. Daly, A.N. Djurkovic, S.R. Fulgham, P.L. Goodwin, L.G. Herger, M.W. Jones, N.J. Jones, L.A. Juilfs, C.M. Langstroth, M.E. Mitchell, J.R. Oliveria, B.M. Richmond, J.W. Schroeder

A diatom-based quantitative sea-ice proxy for the Bering and Chukchi seas A diatom-based quantitative sea-ice proxy for the Bering and Chukchi seas

Sea ice affects Earth's climate system on both regional and global scales. Its incorporation into climate can be used to achieve more accurate predictions of future climate. However, instrumental records of sea-ice concentration do not extend earlier than 1978. In an effort to extend this record, we constructed a proxy using the generalized additive model based on relative abundances of...
Authors
Anna Nesterovich, Beth E. Caissie

Sentinel-2 for chlorophyll-a water quality monitoring: A review of validation evidence and application potential Sentinel-2 for chlorophyll-a water quality monitoring: A review of validation evidence and application potential

Water quality monitoring is integral to preserving the health of freshwater ecosystems, and satellite remote sensing has emerged as one monitoring method. Sentinel-2, in particular, has been valuable for water quality monitoring due to its 5-day global temporal revisit time and spatial resolution that ranges from 10 to 60 metres. Sentinel-2 can be used to measure and monitor chlorophyll...
Authors
Sarah Goodrich, Blake Schaeffer, Kate Meyers, Wilson Barg Salls, Tyler King, Bridget N. Seegers, Olivia Cronin-Golomb, David Demaree, Molly Reif

Resilience thinking for human-wildlife coexistence: Bridging dynamic systems, archetypes, and transformations Resilience thinking for human-wildlife coexistence: Bridging dynamic systems, archetypes, and transformations

As human activities and wildlife increasingly overlap in the Anthropocene, conventional conservation paradigms focused on land-sparing are shifting toward strategies that support human–wildlife coexistence. However, achieving sustainable coexistence is often hindered by a limited understanding of the dynamic social–ecological processes that drive integrated human–wildlife systems. This...
Authors
Neil H. Carter, Erin K. Buchholtz, Jenny Anne Glikman, A. Sofía Nanni, Mahi Puri

Integrating data on a mixed stock anadromous fishery to estimate stock-specific escapement and mortalities Integrating data on a mixed stock anadromous fishery to estimate stock-specific escapement and mortalities

Objective Anadromous fisheries can affect stocks with differing management objectives. Understanding the effects of fisheries on individual stocks by quantifying final dispositions, including escapement and mortalities, is important for sustainable fishery management. Our objectives were to extend an existing management model that is used to evaluate final stock dispositions to estimate...
Authors
Ryan A. Vosbigian, John H. Powell, Matthew Richard Falcy

A multi-species, multi-season evaluation of body condition effects on fish survival in a coolwater stream A multi-species, multi-season evaluation of body condition effects on fish survival in a coolwater stream

Objective Body condition is often used as a surrogate of individual fitness in fisheries ecology and management, but empirical data demonstrating this linkage are few. Here, we investigated whether weight at length (i.e., body condition) explained individual variation in survival.Methods We conducted a mark–recapture survey of three native fishes subseasonally (every 2 months) over 28...
Authors
Bijoya Paul, Kasey Celene Pregler, Seoghyun Kim, Yoichiro Kanno
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