Effects of vertical mixing on the Lake Michigan food web: an application of a linked end-to-end earth system model framework DOI Creative Commons
Hailong Zhang, Doran M. Mason, Nicholas Boucher

et al.

Ocean Dynamics, Journal Year: 2023, Volume and Issue: 73(9), P. 545 - 556

Published: July 25, 2023

Abstract Physical processes may affect ecosystem structure and function through the accumulation, transport, dispersal of organic inorganic materials, nutrients, organisms; they physical habitat can influence predator–prey interactions trophic production. In Laurentian Great Lakes, horizontal currents generally dominate, but little is known about effects vertical mixing on lake food webs. We developed a linked earth system model used it to explore how affects productivity Lake Michigan (LM), world’s fifth-largest lake, whose web fisheries have been adversely affected by invasive Dreissena mussels. hypothesized that higher would result in biomass making phosphorus more available lower web, filtration mussels counter decrease biomass. Using climate, hydrodynamics, models, we projected response LM’s scenarios different levels mixing, with without Biomass most functional groups increased increases greatest phytoplankton zooplankton. Increased was due replenishment nutrients into euphotic zone, which enhanced growth bottom-up effects. However, reduced positive for species. Future applications framework will climate warming nutrient reduction production inform managers.

Language: Английский

Blooms also like it cold DOI Creative Commons
Kaitlin L. Reinl, Ted D. Harris, Rebecca L. North

et al.

Limnology and Oceanography Letters, Journal Year: 2023, Volume and Issue: 8(4), P. 546 - 564

Published: Feb. 17, 2023

Abstract Cyanobacterial blooms have substantial direct and indirect negative impacts on freshwater ecosystems including releasing toxins, blocking light needed by other organisms, depleting oxygen. There is growing concern over the potential for climate change to promote cyanobacterial blooms, as positive effects of increasing lake surface temperature growth are well documented in literature; however, there evidence that also being initiated persisting relatively cold‐water temperatures (< 15°C), ice‐covered conditions. In this work, we provide review abiotic drivers physiological adaptations leading these offer a typology lesser‐studied discuss their occurrence under changing

Language: Английский

Citations

64
Host species and habitat shape fish-associated bacterial communities: phylosymbiosis between fish and their microbiome DOI Creative Commons
Javad Sadeghi, Subba Rao Chaganti, Timothy B. Johnson

et al.

Microbiome, Journal Year: 2023, Volume and Issue: 11(1)

Published: Nov. 20, 2023

While many studies have reported that the structure of gut and skin microbiota is driven by both species-specific habitat-specific factors, relative importance host-specific versus environmental factors in wild vertebrates remains poorly understood. The aim this study was to determine diversity composition fish skin, gut, surrounding water bacterial communities (hereafter referred as microbiota) assess extent which host habitat phylogeny predict similarity. Skin swabs samples from 334 belonging 17 species were sampled three Laurentian Great Lakes (LGLs) habitats (Detroit River, Lake Erie, Ontario). We also collected filtered at time collection. analyzed community using 16S metabarcoding tested for variation.We found distinct microbiota, although more closely resembled microbiota. (sample location), habitat, diet, shape promote divergence or convergence Since significantly affected (separately effects), we phylosymbiosis pairwise phylogenetic distance dissimilarity. significant effects on dissimilarity, consistent with perhaps reflecting longstanding co-evolutionary relationship between their microbiomes.Analyzing mucus across diverse complex natural ecosystems such LGLs provides insights into potential microbiome, ultimately health, host. Video Abstract.

Language: Английский

Citations

29
Declines in ice cover are accompanied by light limitation responses and community change in freshwater diatoms DOI Creative Commons
Brittany N. Zepernick, Emily E. Chase, Elizabeth R. Denison

et al.

The ISME Journal, Journal Year: 2024, Volume and Issue: 18(1)

Published: Jan. 1, 2024

Abstract The rediscovery of diatom blooms embedded within and beneath the Lake Erie ice cover (2007–2012) ignited interest in psychrophilic adaptations winter limnology. Subsequent studies determined vital role plays ecophysiology as diatoms partition to underside ice, thereby fixing their location photic zone. Yet, climate change has led widespread decline across Great Lakes, with presenting a nearly “ice-free” state several recent winters. It been hypothesized that resultant turbid, isothermal water column induces light limitation amongst thus serves competitive disadvantage. To investigate this hypothesis, we conducted physiochemical metatranscriptomic survey spanned spatial, temporal, climatic gradients (2019–2020). Our results suggest ice-free conditions decreased planktonic bloom magnitude altered community composition. Diatoms increased expression various photosynthetic genes iron transporters, which suggests are attempting increase quantity photosystems light-harvesting components (a well-defined indicator limitation). We identified two gene families serve fitness turbid column: proton-pumping rhodopsins potential second means light-driven energy acquisition) fasciclins “raft” together buoyancy co-locate surface optimize acquisition). With large-scale changes already underway, our observations provide insight into how respond dynamic today shed on they will fare climatically tomorrow.

Language: Английский

Citations

8
The not-so-dead of winter: underwater light climate and primary productivity under snow and ice cover in inland lakes DOI
Andrew J. Bramburger, Ted Ozersky, Greg M. Silsbe

et al.

Inland Waters, Journal Year: 2022, Volume and Issue: 13(1), P. 1 - 12

Published: July 21, 2022

As global surface temperatures continue to rise as a result of anthropogenic climate change, effects in temperate lakes are likely be more pronounced than other ecosystems. Decreases snow and ice cover extent duration extended periods summer stratification have been observed lake systems throughout the Anthropocene. However, changing on lacustrine communities remain largely uninvestigated. We examined underwater light associated primary productivity patterns under snow-covered clear-lake 6 inland Minnesota, USA, spanning gradients water column optical properties (blue, green, brown) with trophic status organic material content. In all lakes, influenced not only intensity, but also spectral signature penetrating into column. Specifically, wavelength maximum penetration was shifted towards longer wavelengths green (eutrophic) shorter blue brown lakes. Volumetric often higher anticipated (e.g., ∼1200 mg m−3 d−1; Lake Minnetonka, ice). Carbon assimilation rates were lower types except immediately cleared eutrophic where phytoplankton photoinhibited because intense, short-wavelength light. These findings suggest that changes ongoing change scenarios can affect sensitive aquatic

Language: Английский

Citations

28
Lake ice quality in a warming world DOI
Joshua Culpepper, Ellinor Jakobsson, Gesa A. Weyhenmeyer

et al.

Nature Reviews Earth & Environment, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 19, 2024

Language: Английский

Citations

6
Feasibility of implementing an integrated long-term database to advance ecosystem-based management in the Laurentian Great Lakes basin DOI
Richard R. Budnik, Kenneth T. Frank, L. Collis

et al.

Journal of Great Lakes Research, Journal Year: 2024, Volume and Issue: 50(2), P. 102308 - 102308

Published: Feb. 21, 2024

Language: Английский

Citations

5
Biotic and thermal drivers alter zooplankton phenology in western Lake Erie DOI Creative Commons

J. Schmidt Bailey,

James M. Hood

Limnology and Oceanography Letters, Journal Year: 2024, Volume and Issue: 9(3), P. 219 - 228

Published: Feb. 2, 2024

Abstract Environmental change, particularly warming and eutrophication, can alter phenology in aquatic systems. Understanding controls on zooplankton is important due to their central role food webs. While patterns have been well documented, we lack an understanding of how abiotic biotic drivers influence lake during the summer. We examined four common taxa ( Daphnia retrocurva , Skistodiaptomus oregonensis Mesocyclops spp., Dreissenid veligers) western Lake Erie 1995–2022, a period with increasing eutrophication Bythotrephes longimanus biomass. Many metrics varied by 3 weeks or more from 1995 2022. The dominant were temperature factors, especially grazer‐defended phytoplankton (cyanobacteria other colonial filamentous taxa) invasive predator B. which frequently interacted. Our results show that aspects environmental change interact shape phenology, biomass energy flow higher trophic levels.

Language: Английский

Citations

4
Lake Ice From Historical Records to Contemporary Science DOI Creative Commons
Sapna Sharma, Kirill Shchapov, Joshua Culpepper

et al.

Journal of Geophysical Research Biogeosciences, Journal Year: 2024, Volume and Issue: 129(4)

Published: March 31, 2024

Abstract Lake ice phenology is a critical component of the cryosphere and sensitive indicator climate change that has some longest records related to science. Records commenced for numerous reasons including navigation, hydropower development, individual curiosity, demonstrating value lake as seasonal event significant importance broad swath peoples countries. At same time, loss been rapid widespread with lakes losing at an average rate 17 days per century. In this Perspective, we examine earliest known cover scientific studies developed from practice record keeping. Studies in began nineteenth Century have included relationships between climate, biology, cover. Early foundational principles limnologists scientists are still exploring, such relationship variables, large‐scale oscillations, morphological characteristics, implications physical structure under‐ice ecosystems warming climate. We conclude examination state field how these centuries‐long can continue inform cutting edge science by validating satellite remote sensing techniques, addition modeling approaches collaborations across disciplines, improve our understanding warmer world.

Language: Английский

Citations

4
Winter Ice‐Wave Modeling With WAVEWATCH III in Lake Erie DOI Creative Commons
Haoguo Hu,

Dan Titze,

Ayumi Fujisaki‐Manome

et al.

Journal of Geophysical Research Oceans, Journal Year: 2025, Volume and Issue: 130(1)

Published: Jan. 1, 2025

Abstract Operational wave forecasts for the Great Lakes originate from NOAA Waves Unstructured version 2 system. The model uses a simple ice blocking (IC0) parameterization ice‐wave damping, so ice‐covered portions of lakes are treated as land in modeling Although and effective, block can impede forecasting by eliminating forecast guidance areas with thin or partial cover. We evaluate 12 damping parameterizations within WAVEWATCH III (WW3, 6.07.1) Lake Erie, comparing results against observations made at several locations using moored acoustic current profilers during winters 2010–2011 2012–2013. comparisons show that IC4M4 module performs best among modules root mean square error (RMSE) 0.32–0.39 m bias −0.06 to −0.11 m, outperforming existing IC0 (RMSE: 0.46–0.59 m; bias: −0.23 −0.34 m) analysis year. WW3 mostly derived measurements studies Arctic Antarctic Ocean. dominant frequency is about 0.05∼0.10 Hz Ocean compared 0.15∼0.2 lake. Thus formulas built on based deep oceans may not be suitable shallow because they cause too much damping. study , attenuation formula incoming height also Erie.

Language: Английский

Citations

0
High abundance and diversity of flagellates under ice cover in Lake Baikal revealed by microscopy and metabarcoding DOI
Maria Bashenkhaeva, Yulia Zakharova, Yuri Galachyants

et al.

Journal of Great Lakes Research, Journal Year: 2025, Volume and Issue: unknown, P. 102545 - 102545

Published: Feb. 1, 2025

Language: Английский

Citations

0