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da Silva JP, Sousa R, Gonçalves DV, Miranda R, Reis J, Teixeira A, Varandas S, Lopes-Lima M, Filipe AF. Streams in the Mediterranean Region are not for mussels: Predicting extinctions and range contractions under future climate change. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 883:163689. [PMID: 37100131 DOI: 10.1016/j.scitotenv.2023.163689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 04/18/2023] [Accepted: 04/19/2023] [Indexed: 05/03/2023]
Abstract
Climate change is becoming the leading driver of biodiversity loss. The Mediterranean region, particularly southwestern Europe, is already confronting the consequences of ongoing global warming. Unprecedented biodiversity declines have been recorded, particularly within freshwater ecosystems. Freshwater mussels contribute to essential ecosystem services but are among the most threatened faunal groups on Earth. Their poor conservation status is related to the dependence on fish hosts to complete the life cycle, which also makes them particularly vulnerable to climate change. Species Distribution Models (SDMs) are commonly used to predict species distributions, but often disregard the potential effect of biotic interactions. This study investigated the potential impact of future climate on the distribution of freshwater mussel species while considering their obligatory interaction with fish hosts. Specifically, ensemble models were used to forecast the current and future distribution of six mussel species in the Iberian Peninsula, including environmental conditions and the distribution of fish hosts as predictors. We found that climate change is expected to severely impact the future distribution of Iberian mussels. Species with narrow ranges, namely Margaritifera margaritifera and Unio tumidiformis, were predicted to have their suitable habitats nearly lost and could potentially be facing regional and global extinctions, respectively. Anodonta anatina, Potomida littoralis, and particularly Unio delphinus and Unio mancus, are expected to suffer distributional losses but may gain new suitable habitats. A shift in their distribution to new suitable areas is only possible if fish hosts are able to disperse while carrying larvae. We also found that including the distribution of fish hosts in the mussels' models avoided the underprediction of habitat loss under climate change. This study warns of the imminent loss of mussel species and populations and the urgent need of management actions to reverse current trends and mitigate irreversible damage to species and ecosystems in Mediterranean regions.
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Affiliation(s)
- Janine P da Silva
- CBMA - Centre of Molecular and Environmental Biology, Department of Biology, University of Minho, Campus Gualtar, 4710-057 Braga, Portugal.
| | - Ronaldo Sousa
- CBMA - Centre of Molecular and Environmental Biology, Department of Biology, University of Minho, Campus Gualtar, 4710-057 Braga, Portugal
| | - Duarte Vasconcelos Gonçalves
- CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, University of Porto, 4450-208 Matosinhos, Portugal
| | - Rafael Miranda
- Instituto de Biodiversidad y Medioambiente (BIOMA), Universidad de Navarra, Irunlarrea 1, 31008, Navarra, Spain
| | - Joaquim Reis
- MARE - Marine and Environmental Sciences Centre//ARNET-Aquatic Research Network, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Amílcar Teixeira
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Simone Varandas
- CITAB-UTAD - Centre for Research and Technology of Agro-Environment and Biological Sciences, University of Trás-os-Montes and Alto Douro, Forestry Department, Vila Real, Portugal; CIBIO/InBIO - Research Center in Biodiversity and Genetic Resources, University of Porto, Campus Agrário de Vairão, 4485-661 Vairão, Portugal
| | - Manuel Lopes-Lima
- CIBIO/InBIO - Research Center in Biodiversity and Genetic Resources, University of Porto, Campus Agrário de Vairão, 4485-661 Vairão, Portugal
| | - Ana Filipa Filipe
- Forest Research Centre and Associated Laboratory TERRA, School of Agriculture, University of Lisbon, Lisbon, Portugal; TERRA Associate Laboratory, School of Agriculture, University of Lisbon, Lisbon, Portugal
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Rangaswami XL, Goldsmith AM, Khan JM, Robertson CR, Lopez RR, Randklev CR. Thermal tolerances of Popenaias popeii (Texas hornshell) and its host fish from the Rio Grande Basin, Texas. Sci Rep 2023; 13:4603. [PMID: 36944661 PMCID: PMC10030872 DOI: 10.1038/s41598-023-29460-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 02/06/2023] [Indexed: 03/23/2023] Open
Abstract
Freshwater mussels are particularly sensitive to hydrologic changes, including streamflow and temperature, resulting in global decline. The Devils River in south-central Texas harbors the endangered freshwater mussel Popenaias popeii (Unionidae; Texas hornshell). There is concern that water withdrawals from the underlying aquifer may be negatively impacting this species. To assess this risk, we evaluated upper thermal tolerances (LT05 and LT50) of larvae (glochidia) and juveniles from two sites. After being acclimated to 27 °C, glochidia were subjected to five experimental temperatures (30, 32, 34, 36, and 38 °C) and non-acclimated control (20 °C) for 12-h and 24-h while juveniles were subjected to three experimental temperatures (30, 32, and 36 °C) and non-acclimated control (20 °C) for 96-h. We overlaid tolerance estimates against in situ water temperature and discharge data to evaluate thermal exceedances. Additionally, we reviewed upper thermal tolerances of P. popeii's presumed host fish (Carpiodes carpio, Cyprinellas lutrensis, and Moxostoma congestum) and their congeners. Stream temperatures only occasionally exceeded mussel LT05/50 and fish CLMax/LTMax, likely due to the Devils River's large spring input, highlighting the importance of protecting spring flows. We provide a practical framework for assessing hydrological needs of aquatic ectotherms, including the parasite-host relationship, which can be used to optimize environmental management.
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Affiliation(s)
- Xenia L Rangaswami
- Texas A&M Natural Resources Institute, 578 John Kimbrough Blvd. 2260 TAMU, College Station, TX, 77843, USA.
- Texas A&M AgriLife Research and Extension Center at Dallas, 17360 Coit Rd., Dallas, TX, 75252, USA.
| | - Amanda M Goldsmith
- Texas A&M Natural Resources Institute, 578 John Kimbrough Blvd. 2260 TAMU, College Station, TX, 77843, USA
- Texas A&M AgriLife Research and Extension Center at Dallas, 17360 Coit Rd., Dallas, TX, 75252, USA
| | - Jennifer M Khan
- U.S. Fish and Wildlife Service, 2005 Northeast Green Oaks Boulevard, Suite 140, Arlington, TX, 76006, USA
| | - Clinton R Robertson
- Texas Parks and Wildlife Department, River Studies Program, 505 Staples Rd., Bldg. 1, San Marcos, TX, 78666, USA
| | - Roel R Lopez
- Texas A&M Natural Resources Institute, 578 John Kimbrough Blvd. 2260 TAMU, College Station, TX, 77843, USA
| | - Charles R Randklev
- Texas A&M Natural Resources Institute, 578 John Kimbrough Blvd. 2260 TAMU, College Station, TX, 77843, USA
- Texas A&M AgriLife Research and Extension Center at Dallas, 17360 Coit Rd., Dallas, TX, 75252, USA
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3
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Martinski ME, Woolnough DA. Movement and surrounding community of the understudied and endangered Ligumia recta (Mollusca , Unionidae). HYDROBIOLOGIA 2023; 850:1091-1108. [PMID: 36742287 PMCID: PMC9888738 DOI: 10.1007/s10750-023-05145-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 01/06/2023] [Accepted: 01/09/2023] [Indexed: 06/18/2023]
Abstract
UNLABELLED Native freshwater mussels (unionids) are indicators of water quality, with unique behaviors and movement patterns. Many of these species are endangered, yet basic movement and co-occurring community data are lacking for successful unionid conservation. In this study, movement, community, and habitat use among Ligumia recta, an endangered unionid in Michigan, were analyzed across four rivers in central Michigan. The effects of sex, community, substrate use, and other abiotic factors on the movement and occurrence of L. recta were quantified. 24 L. recta individuals were found with variable male:female ratios and were monitored bi-weekly. Over the recapture period, L. recta moved an average minimum convex polygon of 1.43 m2 per day but was variable among rivers. 19 unionid species were found occurring with L. recta; ~13 species in the same river reach as L. recta and ~5 species in closer proximity to L. recta. The tribe Lampsilini most often occurred in close proximity to L. recta. This study identified basic movement and occurrence patterns of L. recta and provides a better understanding of the status of L. recta in Michigan. Our study highlights useful methods in understanding imperiled unionids, expanding the knowledge of their movement, behavior, community assemblages, and habitat use. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s10750-023-05145-2.
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Affiliation(s)
- Meghan E. Martinski
- Biology Department and Institute for Great Lakes Research, Central Michigan University, Mount Pleasant, MI USA
- Honors Program, Central Michigan University, Mount Pleasant, MI USA
- Present Address: Texas State University, San Marcos, TX USA
| | - Daelyn A. Woolnough
- Biology Department and Institute for Great Lakes Research, Central Michigan University, Mount Pleasant, MI USA
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Pottier P, Burke S, Zhang RY, Noble DWA, Schwanz LE, Drobniak SM, Nakagawa S. Developmental plasticity in thermal tolerance: Ontogenetic variation, persistence, and future directions. Ecol Lett 2022; 25:2245-2268. [PMID: 36006770 DOI: 10.1111/ele.14083] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 07/06/2022] [Accepted: 07/09/2022] [Indexed: 01/07/2023]
Abstract
Understanding the factors affecting thermal tolerance is crucial for predicting the impact climate change will have on ectotherms. However, the role developmental plasticity plays in allowing populations to cope with thermal extremes is poorly understood. Here, we meta-analyse how thermal tolerance is initially and persistently impacted by early (embryonic and juvenile) thermal environments by using data from 150 experimental studies on 138 ectothermic species. Thermal tolerance only increased by 0.13°C per 1°C change in developmental temperature and substantial variation in plasticity (~36%) was the result of shared evolutionary history and species ecology. Aquatic ectotherms were more than three times as plastic as terrestrial ectotherms. Notably, embryos expressed weaker but more heterogenous plasticity than older life stages, with numerous responses appearing as non-adaptive. While developmental temperatures did not have persistent effects on thermal tolerance overall, persistent effects were vastly under-studied, and their direction and magnitude varied with ontogeny. Embryonic stages may represent a critical window of vulnerability to changing environments and we urge researchers to consider early life stages when assessing the climate vulnerability of ectotherms. Overall, our synthesis suggests that developmental changes in thermal tolerance rarely reach levels of perfect compensation and may provide limited benefit in changing environments.
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Affiliation(s)
- Patrice Pottier
- Evolution & Ecology Research Centre, School of Biological, Earth and Environmental Sciences, The University of New South Wales, Sydney, New South Wales, Australia
| | - Samantha Burke
- Evolution & Ecology Research Centre, School of Biological, Earth and Environmental Sciences, The University of New South Wales, Sydney, New South Wales, Australia
| | - Rose Y Zhang
- Division of Ecology and Evolution, Research School of Biology, College of Science, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Daniel W A Noble
- Division of Ecology and Evolution, Research School of Biology, College of Science, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Lisa E Schwanz
- Evolution & Ecology Research Centre, School of Biological, Earth and Environmental Sciences, The University of New South Wales, Sydney, New South Wales, Australia
| | - Szymon M Drobniak
- Evolution & Ecology Research Centre, School of Biological, Earth and Environmental Sciences, The University of New South Wales, Sydney, New South Wales, Australia.,Institute of Environmental Sciences, Jagiellonian University, Kraków, Poland
| | - Shinichi Nakagawa
- Evolution & Ecology Research Centre, School of Biological, Earth and Environmental Sciences, The University of New South Wales, Sydney, New South Wales, Australia
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Kiser AH, Cummings KS, Tiemann JS, Smith CH, Johnson NA, Lopez RR, Randklev CR. Using a multi‐model ensemble approach to determine biodiversity hotspots with limited occurrence data in understudied areas: An example using freshwater mussels in México. Ecol Evol 2022; 12:e8909. [PMID: 35592061 PMCID: PMC9101588 DOI: 10.1002/ece3.8909] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 04/14/2022] [Accepted: 04/20/2022] [Indexed: 11/06/2022] Open
Abstract
Species distribution models (SDMs) are an increasingly important tool for conservation particularly for difficult‐to‐study locations and with understudied fauna. Our aims were to (1) use SDMs and ensemble SDMs to predict the distribution of freshwater mussels in the Pánuco River Basin in Central México; (2) determine habitat factors shaping freshwater mussel occurrence; and (3) use predicted occupancy across a range of taxa to identify freshwater mussel biodiversity hotspots to guide conservation and management. In the Pánuco River Basin, we modeled the distributions of 11 freshwater mussel species using an ensemble approach, wherein multiple SDM methodologies were combined to create a single ensemble map of predicted occupancy. A total of 621 species‐specific observations at 87 sites were used to create species‐specific ensembles. These predictive species ensembles were then combined to create local diversity hotspot maps. Precipitation during the warmest quarter, elevation, and mean temperature were consistently the most important discriminatory environmental variables among species, whereas land use had limited influence across all taxa. To the best of our knowledge, our study is the first freshwater mussel‐focused research to use an ensemble approach to determine species distribution and predict biodiversity hotspots. Our study can be used to guide not only current conservation efforts but also prioritize areas for future conservation and study.
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Affiliation(s)
- Alexander H. Kiser
- Texas A&M AgriLife Research Center at Dallas Texas A&M Natural Resources Institute Dallas Texas USA
| | | | | | - Chase H. Smith
- Department of Integrative Biology University of Texas Austin Texas USA
| | - Nathan A. Johnson
- U.S. Geological Survey, Wetland and Aquatic Research Center Gainesville Florida USA
| | - Roel R. Lopez
- Texas A&M AgriLife Research Center at Dallas Texas A&M Natural Resources Institute Dallas Texas USA
- Natural Resources Institute Texas A&M University College Station Texas USA
| | - Charles R. Randklev
- Texas A&M AgriLife Research Center at Dallas Texas A&M Natural Resources Institute Dallas Texas USA
- Natural Resources Institute Texas A&M University College Station Texas USA
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6
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Kunz JL, Wang N, Martinez D, Dunn S, Cleveland D, Steevens JA. The Sensitivity of a Unionid Mussel (Lampsilis Siliquoidea) to a Permitted Effluent and Elevated Potassium in the Effluent. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2021; 40:3410-3420. [PMID: 34559934 DOI: 10.1002/etc.5221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 06/22/2021] [Accepted: 09/21/2021] [Indexed: 06/13/2023]
Abstract
Freshwater mussels are one of the most imperiled groups of animals in the world and are among the most sensitive species to a variety of chemicals. However, little is known about the sensitivity of freshwater mussels to wastewater effluents. The objectives of the present study were to (1) assess the toxicity of a permitted effluent, which entered the Deep Fork River, Oklahoma (USA), to a unionid mussel (Lampsilis siliquoidea) and to two standard test species (cladoceran Ceriodaphnia dubia; and fathead minnow Pimephales promelas) in short-term 7-day effluent tests; (2) evaluate the relative sensitivities of the three species to potassium (K), an elevated major ion in the effluent, using 7-day toxicity tests with KCl spiked into a Deep Fork River upstream reference water; (3) determine the potential influences of background water characteristics on the acute K toxicity to the mussel (96-h exposures) and cladoceran (48-h exposure) in four reconstituted waters that mimicked the hardness and ionic composition ranges of the Deep Fork River; and (4) determine the potential influence of temperature on acute K toxicity to the mussel. The effluent was found to be toxic to mussels and cladocerans, and it contained elevated concentrations of major cations and anions relative to the upstream Deep Fork River reference water. The K concentration in the effluent was 48-fold greater than in the upstream water. Compared with the standard species, the mussel was more than 4-fold more sensitive to the effluent in the 7-day effluent tests and more than 8-fold more sensitive to K in the 7-day K toxicity tests. The acute K toxicity to the mussel decreased by a factor of 2 when the water hardness was increased from soft (42 mg/L as CaCO3 ) to very hard (314 mg/L as CaCO3 ), whereas the acute K toxicity to the cladoceran remained almost the same as hardness increased from 84 to 307 mg/L as CaCO3 . Acute K toxicity to the mussel at 23 °C was similar to the toxicity at an elevated temperature of 28 °C. The overall results indicate that the two standard test species may not represent the sensitivity of the tested mussel to both the effluent and K, and the toxicity of K was influenced by the hardness in test waters, but by a limited magnitude. Environ Toxicol Chem 2021;40:3410-3420. Published 2021. This article is a U.S. Government work and is in the public domain in the USA.
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Affiliation(s)
- James L Kunz
- Columbia Environmental Research Center, US Geological Survey, Columbia, Missouri, USA
| | - Ning Wang
- US Fish and Wildlife Service, Tulsa, Oklahoma, USA
| | | | - Suzanne Dunn
- US Fish and Wildlife Service, Tulsa, Oklahoma, USA
| | - Danielle Cleveland
- Columbia Environmental Research Center, US Geological Survey, Columbia, Missouri, USA
| | - Jeffery A Steevens
- Columbia Environmental Research Center, US Geological Survey, Columbia, Missouri, USA
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7
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Tiemann JS, Inoue K, Rodríguez-Pineda JA, Hart M, Cummings KS, Naranjo-García E, Randklev CR. STATUS OF FRESHWATER MUSSELS (UNIONIDAE) OF THE RÍO CONCHOS BASIN, CHIHUAHUA, MEXICO. SOUTHWEST NAT 2020. [DOI: 10.1894/0038-4909-64.3-4.180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Jeremy S. Tiemann
- Illinois Natural History Survey, Prairie Research Institute, University of Illinois, Champaign, IL 61820 (JST, KSC)
| | - Kentaro Inoue
- Texas A&M University, Natural Resources Institute, Texas A&M AgriLife Research Center, Dallas, TX 77843 (KI, MH, CRR)
| | | | - Michael Hart
- Texas A&M University, Natural Resources Institute, Texas A&M AgriLife Research Center, Dallas, TX 77843 (KI, MH, CRR)
| | - Kevin S. Cummings
- Illinois Natural History Survey, Prairie Research Institute, University of Illinois, Champaign, IL 61820 (JST, KSC)
| | - Edna Naranjo-García
- Instituto de Biología, Departamento de Zoología, Universidad Nacional Autónoma de México, México City, México 04510 (ENG)
| | - Charles R. Randklev
- Texas A&M University, Natural Resources Institute, Texas A&M AgriLife Research Center, Dallas, TX 77843 (KI, MH, CRR)
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8
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Hraoui G, Bettinazzi S, Gendron AD, Boisclair D, Breton S. Mitochondrial thermo-sensitivity in invasive and native freshwater mussels. J Exp Biol 2020; 223:jeb215921. [PMID: 31915201 DOI: 10.1242/jeb.215921] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 01/03/2020] [Indexed: 12/13/2022]
Abstract
Climate change is impacting many, if not all, forms of life. Increases in extreme temperature fluctuations and average temperatures can cause stress, particularly in aquatic sessile ectotherms such as freshwater mussels. However, some species seem to thrive more than others in face of temperature-related stressors. Thermal tolerance may, for example, explain the success of invasive species. It is also known that mitochondria can play a key role in setting an ectothermic species' thermal tolerance. In this study, we aimed to characterize the mitochondrial thermo-tolerance in invasive and endemic freshwater mussels. With the use of high-resolution respirometry, we analyzed the mitochondrial respiration of two freshwater bivalve species exposed to a broad range of temperatures. We noticed that the invasive dreissenid Dreissena bugensis possessed a less thermo-tolerant mitochondrial metabolism than the endemic unionid Elliptio complanata This lack of tolerance was linked with a more noticeable aerobic metabolic depression at elevated temperatures. This decrease in mitochondrial metabolic activity was also linked with an increase in leak oxygen consumption as well as a stable maintenance of the activity of cytochrome c oxidase in both species. These findings may be associated both with the species' life history characteristics, as D. bugensis is more adapted to unstable habitats, in which selection pressures for resistance adaptations are reduced. Our findings add to the growing body of literature characterizing the mitochondrial metabolism of many aquatic ectotherms in our changing world.
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Affiliation(s)
- Georges Hraoui
- Département de Sciences Biologiques, Université de Montréal, Pavillon Marie-Victorin, 90 Vincent D'Indy, Montréal, QC, H2V 2S9, Canada
- Groupe de Recherche Interuniversitaire en Limnologie (GRIL), Université de Montréal, Pavillon Marie-Victorin, 90 Vincent D'Indy, Montréal, QC, H2V 2S9, Canada
| | - Stefano Bettinazzi
- Département de Sciences Biologiques, Université de Montréal, Pavillon Marie-Victorin, 90 Vincent D'Indy, Montréal, QC, H2V 2S9, Canada
| | - Andrée D Gendron
- Aquatic Contaminants Research Division, Water Science and Technology Directorate, Environment and Climate Change Canada, 105 McGill, Montréal, QC, H2Y 2E5, Canada
| | - Daniel Boisclair
- Département de Sciences Biologiques, Université de Montréal, Pavillon Marie-Victorin, 90 Vincent D'Indy, Montréal, QC, H2V 2S9, Canada
- Groupe de Recherche Interuniversitaire en Limnologie (GRIL), Université de Montréal, Pavillon Marie-Victorin, 90 Vincent D'Indy, Montréal, QC, H2V 2S9, Canada
| | - Sophie Breton
- Département de Sciences Biologiques, Université de Montréal, Pavillon Marie-Victorin, 90 Vincent D'Indy, Montréal, QC, H2V 2S9, Canada
- Groupe de Recherche Interuniversitaire en Limnologie (GRIL), Université de Montréal, Pavillon Marie-Victorin, 90 Vincent D'Indy, Montréal, QC, H2V 2S9, Canada
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9
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Growth, reproductive traits and habitat patterns of Unio ravoisieri (Mollusca: Bivalvia) from Ichkeul Lake tributaries (Northern Tunisia). Biologia (Bratisl) 2019. [DOI: 10.2478/s11756-019-00213-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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10
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Gallardo B, Bogan AE, Harun S, Jainih L, Lopes-Lima M, Pizarro M, Rahim KA, Sousa R, Virdis SGP, Zieritz A. Current and future effects of global change on a hotspot's freshwater diversity. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 635:750-760. [PMID: 29680765 DOI: 10.1016/j.scitotenv.2018.04.056] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 03/15/2018] [Accepted: 04/05/2018] [Indexed: 06/08/2023]
Abstract
Deforestation, climate change and invasive species constitute three global threats to biodiversity that act synergistically. However, drivers and rates of loss of freshwater biodiversity now and in the future are poorly understood. Here we focus on the potential impacts of global change on freshwater mussels (Order Unionida) in Sundaland (SE Asia), a vulnerable group facing global declines and recognized indicators of overall freshwater biodiversity. We used an ensemble of distribution models to identify habitats potentially suitable for freshwater mussels and their change under a range of climate, deforestation and invasion scenarios. Our data and models revealed that, at present, Sundaland features 47 and 32 Mha of habitat that can be considered environmentally suitable for native and invasive freshwater mussels, respectively. We anticipate that by 2050, the area suitable for palm oil cultivation may expand between 8 and 44 Mha, representing an annual increase of 2-11%. This is expected to result in a 20% decrease in suitable habitat for native mussels, a drop that reaches 30% by 2050 when considering concomitant climate change. In contrast, the habitat potentially suitable for invasive mussels may increase by 44-56% under 2050 future scenarios. Consequently, native mussels may compete for habitat, food resources and fish hosts with invasive mussels across approximately 60% of their suitable range. Our projections can be used to guide future expeditions to monitor the conservation status of freshwater biodiversity, and potentially reveal populations of endemic species on the brink of extinction. Future conservation measures-most importantly the designation of nature reserves-should take into account trends in freshwater biodiversity generally, and particularly species such as freshwater mussels, vital to safeguard fundamental ecosystem services.
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Affiliation(s)
- Belinda Gallardo
- Applied and Restoration Ecology Group, Pyrenean Institute of Ecology (IPE-CSIC), 50092 Zaragoza, Spain.
| | - Arthur E Bogan
- Research Laboratory, North Carolina State Museum of Natural Sciences, 11 West Jones Street, Raleigh, NC 27601, USA.
| | - Sahana Harun
- Institute for Tropical Biology and Conservation, University Malaysia Sabah (UMS), 88400, Jalan Maktab Sabah, 88100 Kota Kinabalu, Sabah, Malaysia
| | - Leonardo Jainih
- Institute for Tropical Biology and Conservation, University Malaysia Sabah (UMS), 88400, Jalan Maktab Sabah, 88100 Kota Kinabalu, Sabah, Malaysia
| | - Manuel Lopes-Lima
- CIBIO/InBIO - Research Center in Biodiversity and Genetic Resources, University of Porto, Campus Agrário de Vairão, Rua Padre Armando Quintas, 4485-661 Vairão, Portugal
| | - Manuel Pizarro
- Applied and Restoration Ecology Group, Pyrenean Institute of Ecology (IPE-CSIC), 50092 Zaragoza, Spain.
| | - Khairul Adha Rahim
- Department of Aquatic Sciences, Faculty of Resource Science & Technology, University Malaysia Sarawak, 94300 Kota Samarahan, Sarawak, Malaysia.
| | - Ronaldo Sousa
- CBMA - Centre of Molecular and Environmental Biology, Department of Biology, University of Minho, Campus Gualtar, 4710-057 Braga, Portugal
| | - Salvatore G P Virdis
- Department of Information & Communication Technologies, School of Engineering and Technology (SET), AIT Asian Institute of Technology, P.O. Box 4, Klong Luang, Pathumthani 12120, Thailand.
| | - Alexandra Zieritz
- School of Environmental and Geographical Sciences, University of Nottingham Malaysia Campus, Jalan Broga, 43500 Semenyih, Malaysia.
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Randklev CR, Miller T, Hart M, Morton J, Johnson NA, Skow K, Inoue K, Tsakiris ET, Oetker S, Smith R, Robertson C, Lopez R. A semi-arid river in distress: Contributing factors and recovery solutions for three imperiled freshwater mussels (Family Unionidae) endemic to the Rio Grande basin in North America. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 631-632:733-744. [PMID: 29544177 DOI: 10.1016/j.scitotenv.2018.03.032] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 03/02/2018] [Accepted: 03/03/2018] [Indexed: 06/08/2023]
Abstract
Freshwater resources in arid and semi-arid regions are in extreme demand, which creates conflicts between needs of humans and aquatic ecosystems. The Rio Grande basin in the southwestern United States and northern Mexico exemplifies this issue, as much of its aquatic biodiversity is in peril as a result of human activities. Unionid mussels have been disproportionately impacted, though the specific factors responsible for their decline remain largely unknown. This is problematic because the Rio Grande basin harbors one federally endangered unionid mussel (Popenaias popeii, Texas Hornshell) plus two other mussel species (Potamilus metnecktayi, Salina Mucket; and Truncilla cognata, Mexican Fawnsfoot), which are also being considered for listing under the U.S. Endangered Species Act. To date, surveys for these species have not corrected for variability in detection so current range estimates may be inaccurate. Using single occupancy-modeling to estimate detection and occupancy at 115 sites along ~800 river kilometers of the Rio Grande in Texas, we found that detection probabilities were relatively high, indicating that our survey design was efficient. In contrast, the estimated occupancy was low, indicating that our focal species were likely rare within the Rio Grande drainage. In general, the predicted occupancy of our focal species was low throughout their respective ranges, indicating possible range declines. A comparison of currently occupied ranges to presumptive ranges underscores this point. The best-approximating models indicated that occupancy was influenced by habitat, water quantity and quality, and proximity to large-scale human activities, such as dams and major urban centers. We also discuss a series of conservation options that may not only improve the long-term prognosis of our focal species but also other aquatic taxa.
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Affiliation(s)
- Charles R Randklev
- Texas A&M Natural Resources Institute and AgriLife Research Center at Dallas, Dallas, TX, United States.
| | - Tom Miller
- Environmental Science Center, Laredo Community College, Laredo, TX, United States
| | - Michael Hart
- Texas A&M Natural Resources Institute and AgriLife Research Center at Dallas, Dallas, TX, United States
| | - Jennifer Morton
- Texas A&M Natural Resources Institute and AgriLife Research Center at Dallas, Dallas, TX, United States
| | - Nathan A Johnson
- U.S. Geological Survey, Wetland and Aquatic Research Center, Gainesville, FL, United States
| | - Kevin Skow
- Texas A&M Natural Resources Institute and AgriLife Research Center at Dallas, Dallas, TX, United States
| | - Kentaro Inoue
- Texas A&M Natural Resources Institute and AgriLife Research Center at Dallas, Dallas, TX, United States
| | - Eric T Tsakiris
- Texas A&M Natural Resources Institute and AgriLife Research Center at Dallas, Dallas, TX, United States
| | - Susan Oetker
- U.S. Fish and Wildlife Service, Southwest Region, Albuquerque, NM, United States
| | - Ryan Smith
- The Nature Conservancy of Texas, San Antonio, TX, United States
| | - Clint Robertson
- Texas Parks and Wildlife Department, River Studies Program, San Marcos, TX, United States
| | - Roel Lopez
- Texas A&M Natural Resources Institute and AgriLife Research Center at Dallas, Dallas, TX, United States
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12
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Jeffrey JD, Hannan KD, Hasler CT, Suski CD. Hot and bothered: effects of elevated Pco2 and temperature on juvenile freshwater mussels. Am J Physiol Regul Integr Comp Physiol 2018; 315:R115-R127. [DOI: 10.1152/ajpregu.00238.2017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Multiple environmental stressors may interact in complex ways to exceed or diminish the impacts of individual stressors. In the present study, the interactive effects of two ecologically relevant stressors [increased temperature and partial pressure of carbon dioxide (Pco2)] were assessed for freshwater mussels, a group of organisms that are among the most sensitive and rapidly declining worldwide. The individual and combined effects of elevated temperature (22°C–34°C) and Pco2 (~230, 58,000 µatm) on juvenile Lampsilis siliquoidea were quantified over a 5- or 14-day period, during which physiological and whole animal responses were measured. Exposure to elevated temperature induced a series of physiological responses, including an increase in oxygen consumption rates following 5 days of exposure at 31°C and an increase in carbonic anhydrase ( ca) and heat shock protein 70 mRNA levels following 14 days of exposure at 28°C and 34°C, respectively. Treatment with elevated Pco2 activated acid-base regulatory responses including increases in CA and Na+-K+-ATPase activity and a novel mechanism for acid-base regulation during Pco2 exposure in freshwater mussels was proposed. Thermal and CO2 stressors also interacted such that responses to the thermal stressor were diminished in mussels exposed to elevated Pco2, resulting in the greatest level of mortality. Additionally, larger mussels were more likely to survive treatment with elevated Pco2 and/or temperature. Together, exposure to elevated Pco2 may compromise the ability of juvenile freshwater mussels to respond to additional stressors, such as increased temperatures, highlighting the importance of considering not only the individual but also the interactive effects of multiple environmental stressors.
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Affiliation(s)
- Jennifer D. Jeffrey
- Department of Natural Resources and Environmental Science, University of Illinois at Urbana–Champaign, Urbana, Illinois
| | - Kelly D. Hannan
- Department of Natural Resources and Environmental Science, University of Illinois at Urbana–Champaign, Urbana, Illinois
| | - Caleb T. Hasler
- Department of Natural Resources and Environmental Science, University of Illinois at Urbana–Champaign, Urbana, Illinois
| | - Cory D. Suski
- Department of Natural Resources and Environmental Science, University of Illinois at Urbana–Champaign, Urbana, Illinois
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13
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Archambault JM, Cope WG, Kwak TJ. Chasing a changing climate: Reproductive and dispersal traits predict how sessile species respond to global warming. DIVERS DISTRIB 2018. [DOI: 10.1111/ddi.12740] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
| | - W. Gregory Cope
- Department of Applied Ecology; North Carolina State University; Raleigh NC USA
| | - Thomas J. Kwak
- North Carolina Cooperative Fish and Wildlife Research Unit; U.S. Geological Survey; Raleigh NC USA
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14
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Horký P, Slavík O, Douda K. Altered thermoregulation as a driver of host behaviour in glochidia-parasitised fish. J Exp Biol 2018; 222:jeb.184903. [DOI: 10.1242/jeb.184903] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Accepted: 10/17/2018] [Indexed: 01/17/2023]
Abstract
Parasites alter their host behaviour and vice versa as a result of mutual adaptations in the evolutionary arms race. One of these adaptations involves changes in host thermoregulation, which has the potential to harm the parasite and thereby act as a defence mechanism. We used a model of the brown trout Salmo trutta experimentally parasitised with ectoparasitic larvae called glochidia from the endangered freshwater pearl mussel Margaritifera margaritifera to reveal whether parasitation alters fish behavioural thermoregulation. A study based on radio telemetry temperature sensors was performed during almost one year M. margaritifera parasitic stage. Glochidia infested S. trutta altered its thermoregulation through active searching for habitats with different thermal regimes. General preference for lower temperature of infested fish varied, being sometimes above, sometimes below the temperature preferred by uninfested individuals. Infested fish also preferred different temperatures across localities, while uninfested fish maintained their thermal preference no matter which stream they inhabited. Glochidia further induced the expression of a behavioural syndrome among S. trutta personality traits, suggesting that it might increase the probability that the fish host would occur in the glochidia temperature optimum. Our findings present the first evidence that thermoregulation plays a fundamental role in the relationship of affiliated mussels and their fish hosts. Incorporating thermoregulation issue in the study of this relationship can help to interpret results from previous behavioural studies as well as to optimise management measures related to endangered mussels.
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Affiliation(s)
- Pavel Horký
- Department of Zoology and Fisheries, Faculty of Agrobiology Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, Prague, CZ 165 21, Czech Republic
| | - Ondřej Slavík
- Department of Zoology and Fisheries, Faculty of Agrobiology Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, Prague, CZ 165 21, Czech Republic
| | - Karel Douda
- Department of Zoology and Fisheries, Faculty of Agrobiology Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, Prague, CZ 165 21, Czech Republic
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15
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Bayesian Hierarchical Regression to Assess Variation of Stream Temperature with Atmospheric Temperature in a Small Watershed. HYDROLOGY 2017. [DOI: 10.3390/hydrology4030044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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16
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Gąsienica-Staszeczek M, Zając K, Zając T, Olejniczak P. In vitro culture of glochidia of the threatened freshwater mussel Unio crassus Philipsson 1788 – the dilution problem. INVERTEBR REPROD DEV 2017. [DOI: 10.1080/07924259.2017.1362482] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
| | - Katarzyna Zając
- Institute of Nature Conservation, Polish Academy of Sciences, Kraków, Poland
| | - Tadeusz Zając
- Institute of Nature Conservation, Polish Academy of Sciences, Kraków, Poland
| | - Paweł Olejniczak
- Institute of Nature Conservation, Polish Academy of Sciences, Kraków, Poland
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17
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Wang N, Kunz JL, Ivey CD, Ingersoll CG, Barnhart MC, Glidewell EA. Toxicity of Chromium (VI) to Two Mussels and an Amphipod in Water-Only Exposures With or Without a Co-stressor of Elevated Temperature, Zinc, or Nitrate. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2017; 72:449-460. [PMID: 28238046 DOI: 10.1007/s00244-017-0377-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Accepted: 02/06/2017] [Indexed: 06/06/2023]
Abstract
The objectives of the present study were to develop methods for propagating western pearlshell (Margaritifera falcata) for laboratory toxicity testing and evaluate acute and chronic toxicity of chromium VI [Cr(VI)] to the pearlshell and a commonly tested mussel (fatmucket, Lampsilis siliquoidea at 20 °C or in association with a co-stressor of elevated temperature (27 °C), zinc (50 µg Zn/L), or nitrate (35 mg NO3/L). A commonly tested invertebrate (amphipod, Hyalella azteca) also was tested in chronic exposures. Newly transformed pearlshell (~1 week old) were successfully cultured and tested in acute 96 h Cr exposures (control survival 100%). However, the grow-out of juveniles in culture for chronic toxicity testing was less successful and chronic 28-day Cr toxicity tests started with 4 month-old pearlshell failed due to low control survival (39-68%). Acute median effect concentration (EC50) for the pearlshell (919 µg Cr/L) and fatmucket (456 µg Cr/L) tested at 20 °C without a co-stressor decreased by a factor of > 2 at elevated temperature but did not decrease at elevated Zn or elevated NO3. Chronic 28-day Cr tests were completed successfully with the fatmucket and amphipod (control survival 83-98%). Chronic maximum acceptable toxicant concentration (MATC) for fatmucket at 20 °C (26 µg Cr/L) decreased by a factor of 2 at elevated temperature or NO3 but did not decrease at elevated Zn. However, chronic MATC for amphipod at 20 °C (13 µg Cr/L) did not decrease at elevated temperature, Zn, or NO3. Acute EC50s for both mussels tested with or without a co-stressor were above the final acute value used to derive United States Environmental Protection Agency acute water quality criterion (WQC) for Cr(VI); however, chronic MATCs for fatmucket at elevated temperature or NO3 and chronic MATCs for the amphipod at 20 °C with or without elevated Zn or NO3 were about equal to the chronic WQC. The results indicate that (1) the elevated temperature increased the acute Cr toxicity to both mussel species, (2) fatmucket was acutely more sensitive to Cr than the pearlshell, (3) elevated temperature or NO3 increased chronic Cr toxicity to fatmucket, and (4) acute WQC are protective of tested mussels with or without a co-stressor; however, the chronic WQC might not protect fatmucket at elevated temperature or NO3 and might not protect the amphipod at 20 °C with or without elevated Zn or NO3.
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Affiliation(s)
- Ning Wang
- United States Geological Survey, Columbia Environmental Research Center, 4200 New Haven Road, Columbia, MO, 65201, USA.
| | - James L Kunz
- United States Geological Survey, Columbia Environmental Research Center, 4200 New Haven Road, Columbia, MO, 65201, USA
| | - Christopher D Ivey
- United States Geological Survey, Columbia Environmental Research Center, 4200 New Haven Road, Columbia, MO, 65201, USA
| | - Christopher G Ingersoll
- United States Geological Survey, Columbia Environmental Research Center, 4200 New Haven Road, Columbia, MO, 65201, USA
| | - M Christopher Barnhart
- Department of Biology, Missouri State University, 901 South National, Springfield, MO, USA
| | - Elizabeth A Glidewell
- Department of Biology, Missouri State University, 901 South National, Springfield, MO, USA
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18
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Payton SL, Johnson PD, Jenny MJ. Comparative physiological, biochemical, and molecular thermal stress response profiles for two Unionid freshwater mussel species. J Exp Biol 2016; 219:3562-3574. [DOI: 10.1242/jeb.140129] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Accepted: 08/26/2016] [Indexed: 12/11/2022]
Abstract
Freshwater mussels, aquatic keystone species, are in global decline. Long life spans, sedentary lifestyles, and unique reproductive strategies involving obligate parasitic stages make unionid freshwater mussels particularly sensitive to environmental perturbations resulting from global climate change. A greater understanding of the mechanisms by which closely related species differ in their response to thermal challenge is critical for successful conservation and management practices. As such, both an acute heat shock and a chronic warming simulation were conducted in order to evaluate responses between hypothesized thermally tolerant, Villosa lienosa, and thermally sensitive, Villosa nebulosa, freshwater mussels in response to predicted thermal warming. Multiple biological responses were quantified, including mortality, condition index, growth rates, glycogen and triglyceride content, and candidate gene expression. During acute heat shock, both species upregulated HSP90 and HSP70, though V. lienosa showed consistently greater transcript levels during upregulation. This pattern was consistent during the chronic warming simulation, with V. nebulosa showing greater induction of HSP60. Chronic warming stimulated increases in condition index for V. nebulosa, however declines in growth rates during a recovery period were observed with no concurrent tissue glycogen levels changes. This contrasts with V. lienosa, where tissue glycogen significantly increased during chronic warming, though no response was observed for condition index or growth rates. These differences might indicate disparate thermal stress response mechanisms correlated with metabolic demands and resource utilization. These biological differences could thus be a factor influencing current ranges and these two species‘ future ability to cope with persistent warming in their native habitats.
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Affiliation(s)
- Samantha L. Payton
- Department of Biological Sciences, University of Alabama, Tuscaloosa, AL 35487, USA
| | - Paul D. Johnson
- Alabama Aquatic Biodiversity Center, Alabama Department of Conservation & Natural Resources, Marion, AL 36765, USA
| | - Matthew J. Jenny
- Department of Biological Sciences, University of Alabama, Tuscaloosa, AL 35487, USA
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19
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Pinkney AE, Driscoll CT, Evers DC, Hooper MJ, Horan J, Jones JW, Lazarus RS, Marshall HG, Milliken A, Rattner BA, Schmerfeld J, Sparling DW. Interactive effects of climate change with nutrients, mercury, and freshwater acidification on key taxa in the North Atlantic Landscape Conservation Cooperative region. INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT 2015; 11:355-69. [PMID: 25556986 DOI: 10.1002/ieam.1612] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 06/10/2014] [Accepted: 12/12/2014] [Indexed: 05/11/2023]
Abstract
The North Atlantic Landscape Conservation Cooperative LCC (NA LCC) is a public-private partnership that provides information to support conservation decisions that may be affected by global climate change (GCC) and other threats. The NA LCC region extends from southeast Virginia to the Canadian Maritime Provinces. Within this region, the US National Climate Assessment documented increases in air temperature, total precipitation, frequency of heavy precipitation events, and rising sea level, and predicted more drastic changes. Here, we synthesize literature on the effects of GCC interacting with selected contaminant, nutrient, and environmental processes to adversely affect natural resources within this region. Using a case study approach, we focused on 3 stressors with sufficient NA LCC region-specific information for an informed discussion. We describe GCC interactions with a contaminant (Hg) and 2 complex environmental phenomena-freshwater acidification and eutrophication. We also prepared taxa case studies on GCC- and GCC-contaminant/nutrient/process effects on amphibians and freshwater mussels. Several avian species of high conservation concern have blood Hg concentrations that have been associated with reduced nesting success. Freshwater acidification has adversely affected terrestrial and aquatic ecosystems in the Adirondacks and other areas of the region that are slowly recovering due to decreased emissions of N and sulfur oxides. Eutrophication in many estuaries within the region is projected to increase from greater storm runoff and less denitrification in riparian wetlands. Estuarine hypoxia may be exacerbated by increased stratification. Elevated water temperature favors algal species that produce harmful algal blooms (HABs). In several of the region's estuaries, HABs have been associated with bird die-offs. In the NA LCC region, amphibian populations appear to be declining. Some species may be adversely affected by GCC through higher temperatures and more frequent droughts. GCC may affect freshwater mussel populations via altered stream temperatures and increased sediment loading during heavy storms. Freshwater mussels are sensitive to un-ionized ammonia that more toxic at higher temperatures. We recommend studying the interactive effects of GCC on generation and bioavailability of methylmercury and how GCC-driven shifts in bird species distributions will affect avian exposure to methylmercury. Research is needed on how decreases in acid deposition concurrent with GCC will alter the structure and function of sensitive watersheds and surface waters. Studies are needed to determine how GCC will affect HABs and avian disease, and how more severe and extensive hypoxia will affect fish and shellfish populations. Regarding amphibians, we suggest research on 1) thermal tolerance and moisture requirements of species of concern, 2) effects of multiple stressors (temperature, desiccation, contaminants, nutrients), and 3) approaches to mitigate impacts of increased temperature and seasonal drought. We recommend studies to assess which mussel species and populations are vulnerable and which are resilient to rising stream temperatures, hydrological shifts, and ionic pollutants, all of which are influenced by GCC.
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Affiliation(s)
- Alfred E Pinkney
- US Fish and Wildlife Service, Chesapeake Bay Field Office, Annapolis, Maryland
| | - Charles T Driscoll
- Department of Civil and Environmental Engineering, Syracuse University, Syracuse, New York, USA
| | | | - Michael J Hooper
- Columbia Environmental Research Center, US Geological Survey, Columbia, Missouri
| | - Jeffrey Horan
- US Fish and Wildlife Service, Northeast Regional Office, Hadley, Massachusetts
| | - Jess W Jones
- US Fish and Wildlife Service, Virginia Tech University, Blacksburg, Virginia
| | - Rebecca S Lazarus
- Patuxent Wildlife Research Center, US Geological Survey, Beltsville, Maryland
| | - Harold G Marshall
- Department of Biological Sciences, Old Dominion University, Norfolk, Virginia, USA
| | - Andrew Milliken
- US Fish and Wildlife Service, Northeast Regional Office, Hadley, Massachusetts
| | - Barnett A Rattner
- Patuxent Wildlife Research Center, US Geological Survey, Beltsville, Maryland
| | - John Schmerfeld
- US Fish and Wildlife Service, Division of Refuges, Arlington, Virginia
| | - Donald W Sparling
- Department of Zoology, Southern Illinois University, Carbondale, Illinois, USA
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20
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Jost JA, Keshwani SS, Abou-Hanna JJ. Activation of AMP-activated protein kinase in response to temperature elevation shows seasonal variation in the zebra mussel, Dreissena polymorpha. Comp Biochem Physiol A Mol Integr Physiol 2015; 182:75-83. [DOI: 10.1016/j.cbpa.2014.11.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 10/31/2014] [Accepted: 11/21/2014] [Indexed: 10/24/2022]
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21
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Hazelton PD, Cope WG, Mosher S, Pandolfo TJ, Belden JB, Barnhart MC, Bringolf RB. Fluoxetine alters adult freshwater mussel behavior and larval metamorphosis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2013; 445-446:94-100. [PMID: 23321069 DOI: 10.1016/j.scitotenv.2012.12.026] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2012] [Revised: 12/07/2012] [Accepted: 12/10/2012] [Indexed: 06/01/2023]
Abstract
We used acute and partial-lifecycle tests to examine the effects of the pharmaceutical fluoxetine on freshwater mussels (Unionida). In acute tests lasting 24-48 h, we determined median effective concentrations (EC50s) for fluoxetine with larval (glochidia viability) and juvenile (survival) life-stages of fatmucket (Lampsilis siliquoidea) and black sandshell (Ligumia recta). In a 28-d behavioral test we exposed brooding adult female wavy-rayed lampmussels (Lampsilis fasciola) to 0.37 and 29.3 μg/L fluoxetine to determine effects on adult behavior (foot protrusion, mantle lure display and glochidia parturition). We also assessed the effects of 24-h exposure of 1 and 100 μg/L fluoxetine on glochidia viability duration and metamorphosis success for the wavy-rayed lampmussel. Fluoxetine EC50s ranged from 62 μg/L for juveniles (96 h) to 293 μg/L for glochidia (24 h). In adults, statistically significant increases were observed in foot protrusion at 0.37 and 29.3 μg/L fluoxetine and lure display rates at 29.3 μg/L; glochidia parturition was not significantly affected at any test concentration. Twenty-four hour exposure of glochidia to fluoxetine did not affect viability duration, but likelihood of metamorphosis to the juvenile stage significantly increased with 1 and 100 μg/L treatments. Our results demonstrated effects of fluoxetine to unionid mussels at concentrations less than previously reported and approaching concentrations measured in surface waters.
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Affiliation(s)
- Peter D Hazelton
- University of Georgia, Interdisciplinary Toxicology Program, Warnell School of Forestry & Natural Resources, 180 East Green Street, Athens, GA 30602-2152, USA
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22
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Dunphy BJ, Ragg NLC, Collings MG. Latitudinal comparison of thermotolerance and HSP70 production in F2 larvae of the greenshell mussel (Perna canaliculus). ACTA ACUST UNITED AC 2012; 216:1202-9. [PMID: 23239885 DOI: 10.1242/jeb.076729] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
We report the first measures of thermotolerance (recorded as percentage mortality and induced HSP70 production) for pelagic larvae of three populations of the New Zealand greenshell (green-lipped) mussel Perna canaliculus. Our goal was to determine whether distinct populations of P. canaliculus were more susceptible to predicted climate change than others, and whether such patterns of susceptibility were either genetically controlled (local adaptation of populations) or simply reflect the acclimatory capacity of this species. F2 larvae from three P. canaliculus populations (D'Urville Island, Banks Peninsula and Stewart Island) were subjected to an acute thermal challenge (3 h exposure to a fixed temperature in the range 20-42°C). No latitudinal patterns in either percentage mortality or HSP70 protein production were apparent. For all populations, larval mortality (LT50) was between 32.9 and 33.9°C, with significant amounts of HSP70 induction only occurring in those individuals that experienced temperatures of 40°C or greater. The data presented therefore do not support the hypothesis that genetic adaptation of P. canaliculus to distinct thermal environments will be reflected by a corresponding difference in acute heat tolerance. In fact, the apparently vulnerable veligers show a surprisingly wide thermal safety margin. To develop a comprehensive understanding of the effects of ocean warming upon this species, subsequent studies should consider the impacts of sub-lethal stress upon fitness in addition to chronic thermal challenge and, crucially, the response of sedentary juvenile and adult stages.
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Affiliation(s)
- Brendon J Dunphy
- School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
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23
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Peterson JT, Wisniewski JM, Shea CP, Jackson CR. Estimation of mussel population response to hydrologic alteration in a southeastern U.S. stream. ENVIRONMENTAL MANAGEMENT 2011; 48:109-122. [PMID: 21562852 DOI: 10.1007/s00267-011-9688-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2010] [Accepted: 04/18/2011] [Indexed: 05/30/2023]
Abstract
The southeastern United States has experienced severe, recurrent drought, rapid human population growth, and increasing agricultural irrigation during recent decades, resulting in greater demand for the water resources. During the same time period, freshwater mussels (Unioniformes) in the region have experienced substantial population declines. Consequently, there is growing interest in determining how mussel population declines are related to activities associated with water resource development. Determining the causes of mussel population declines requires, in part, an understanding of the factors influencing mussel population dynamics. We developed Pradel reverse-time, tag-recapture models to estimate survival, recruitment, and population growth rates for three federally endangered mussel species in the Apalachicola-Chattahoochee-Flint River Basin, Georgia. The models were parameterized using mussel tag-recapture data collected over five consecutive years from Sawhatchee Creek, located in southwestern Georgia. Model estimates indicated that mussel survival was strongly and negatively related to high flows during the summer, whereas recruitment was strongly and positively related to flows during the spring and summer. Using these models, we simulated mussel population dynamics under historic (1940-1969) and current (1980-2008) flow regimes and under increasing levels of water use to evaluate the relative effectiveness of alternative minimum flow regulations. The simulations indicated that the probability of simulated mussel population extinction was at least 8 times greater under current hydrologic regimes. In addition, simulations of mussel extinction under varying levels of water use indicated that the relative risk of extinction increased with increased water use across a range of minimum flow regulations. The simulation results also indicated that our estimates of the effects of water use on mussel extinction were influenced by the assumptions about the dynamics of the system, highlighting the need for further study of mussel population dynamics.
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Affiliation(s)
- James T Peterson
- U.S. Geological Survey, Georgia Cooperative Fish and Wildlife Research Unit, Warnell School of Forestry and Natural Resources, Athens, GA 30602, USA.
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