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Mette M, Andersson C, Schöne B, Bonitz F, Melvik V, Trofimova T, Miles M. Two centuries of southwest Iceland annually-resolved marine temperature reconstructed from Arctica islandica shells. ESTUARINE, COASTAL AND SHELF SCIENCE 2023; 294:108525. [PMID: 38058294 PMCID: PMC10695767 DOI: 10.1016/j.ecss.2023.108525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 08/31/2023] [Accepted: 10/06/2023] [Indexed: 12/08/2023]
Abstract
Iceland's exposure to major ocean current pathways of the central North Atlantic makes it a useful location for developing long-term proxy records of past marine climate. Such records provide more detailed understanding of the full range of past variability which is necessary to improve predictions of future changes. We constructed a 225-year (1791-2015 CE) master shell growth chronology from 29 shells of Arctica islandica collected at 100 m water depth in southwest Iceland (Faxaflói). The growth chronology provides a robust age model for shell oxygen isotope (δ18Oshell) data produced at annual resolution for 251 years (1765-2015 CE). The temperature reconstruction derived from δ18Oshell shows coherence with May-October local surface temperature records and sea surface temperatures in the North Atlantic region, suggesting it is a useful proxy indicator of water temperature variability at 100 m depth within Faxaflói. Field correlations between the shell-based records and gridded sea surface temperature data reveal strong positive correlations between the 1-year lagged shell growth and temperatures within the subpolar gyre post-1972, suggesting a delayed influence of subpolar gyre dynamics on ecological indicators in southwest Iceland in recent decades. However, the shell growth chronology and δ18Oshell record generally show relatively weak and insignificant correlations with larger region climate indices including the Atlantic Multidecadal Variability, North Atlantic Oscillation, and East Atlantic pattern. Therefore the interannual variations in the newly produced shell-based records appear to reflect more local to regional dynamics around southwest Iceland than large-scale modes of climate variability.
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Affiliation(s)
- M.J. Mette
- U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, Florida, USA
- NORCE Norwegian Research Centre, Bjerknes Centre for Climate Research, Bergen, Norway
| | - C. Andersson
- NORCE Norwegian Research Centre, Bjerknes Centre for Climate Research, Bergen, Norway
| | - B.R. Schöne
- Institute of Geosciences, University of Mainz, Mainz, Germany
| | - F.G.W. Bonitz
- NORCE Norwegian Research Centre, Bjerknes Centre for Climate Research, Bergen, Norway
| | - V. Melvik
- NORCE Norwegian Research Centre, Bjerknes Centre for Climate Research, Bergen, Norway
| | - T. Trofimova
- NORCE Norwegian Research Centre, Bjerknes Centre for Climate Research, Bergen, Norway
| | - M.W. Miles
- NORCE Norwegian Research Centre, Bjerknes Centre for Climate Research, Bergen, Norway
- Institute of Arctic and Alpine Research, University of Colorado, Boulder, USA
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Zeng D, Guo X. Mantle Transcriptome Provides Insights into Biomineralization and Growth Regulation in the Eastern Oyster (Crassostrea virginica). MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2022; 24:82-96. [PMID: 34989931 DOI: 10.1007/s10126-021-10088-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 12/17/2021] [Indexed: 06/14/2023]
Abstract
Growth of the eastern oyster Crassostrea virginica, a major aquaculture species in the USA, is highly variable and not well understood at molecular levels. As growth of mollusks is confined in shells constructed by the mantle, mantle transcriptomes of large (fast-growing) and small (slow-growing) eastern oysters were sequenced and compared in this study. Transcription was observed for 31,186 genes, among which 104 genes were differentially expressed between the large and small oysters, including 48 upregulated and 56 downregulated in large oysters. Differentially expressed genes (DEGs) included genes from diverse pathways highlighting the complexity of shell formation and growth regulations. Seventeen of the 48 upregulated DEGs were related to shell matrix formation, most of which were upregulated in large oysters, indicating that large oysters are more active in biomineralization and shell formation. Genomic and transcriptomic analyses identified 22 genes encoding novel polyalanine containing proteins (Pacps) with characteristic motifs for matrix function that are tandemly duplicated on one chromosome, all specifically expressed in mantle and at higher levels in large oysters, suggesting that these expanded Pacps play important roles in shell formation and growth. Analysis of sequence variation identified 244,964 SNPs with 328 associated with growth. This study provides novel candidate genes and markers for shell formation and growth, and suggests that genes related to shell formation are important for the complex regulation of growth in the eastern oyster and possibly other bivalve mollusks. Results of this study show that both transcriptional modulation and functional polymorphism are important in determining growth.
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Affiliation(s)
- Dan Zeng
- Haskin Shellfish Research Laboratory, Department of Marine and Coastal Sciences, Rutgers University, 6959 Miller Avenue, Port Norris, New Jersey, 08349, USA
- College of Life and Environmental Science, Hunan University of Arts and Science, 3150 Dongting Road, Wuling District, Changde, Hunan, 415000, China
| | - Ximing Guo
- Haskin Shellfish Research Laboratory, Department of Marine and Coastal Sciences, Rutgers University, 6959 Miller Avenue, Port Norris, New Jersey, 08349, USA.
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Diminished growth and vitality in juvenile Hydractinia echinata under anticipated future temperature and variable nutrient conditions. Sci Rep 2021; 11:7483. [PMID: 33820912 PMCID: PMC8021570 DOI: 10.1038/s41598-021-86918-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 03/22/2021] [Indexed: 11/08/2022] Open
Abstract
In a warming climate, rising seawater temperatures and declining primary and secondary production will drastically affect growth and fitness of marine invertebrates in the northern Atlantic Ocean. To study the ecological performance of juvenile hydroids Hydractinia echinata we exposed them to current and predicted water temperatures which reflect the conditions in the inter- and subtidal in combination with changing food availability (high and low) in laboratory experiments. Here we show, that the interplay between temperature stress and diminished nutrition affected growth and vitality of juvenile hydroids more than either factor alone, while high food availability mitigated their stress responses. Our numerical growth model indicated that the growth of juvenile hydroids at temperatures beyond their optimum is a saturation function of energy availability. We demonstrated that the combined effects of environmental stressors should be taken into consideration when evaluating consequences of climate change. Interactive effects of ocean warming, decreasing resource availability and increasing organismal energy demand may have major impacts on biodiversity and ecosystem function.
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Peharda M, Vilibić I, Black B, Uvanović H, Markulin K, Mihanović H. A network of bivalve chronologies from semi-enclosed seas. PLoS One 2019; 14:e0220520. [PMID: 31361771 PMCID: PMC6667151 DOI: 10.1371/journal.pone.0220520] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 07/17/2019] [Indexed: 11/22/2022] Open
Abstract
Four chronologies of the bivalve species Glycymeris pilosa have been constructed along a 300 km gradient of the eastern coastal Adriatic Sea, all of which span the common period of 1982–2015. The chronologies are compared to local and remote environmental drivers suspected to influence the biology of the system, including air and seawater temperature, precipitation and freshwater discharge. The Adriatic-Ionian Bimodal Oscillating System (BiOS), a key oceanographic feature quantified by satellite-derived absolute dynamic topography, is also compared to the chronologies. The chronologies at the two southern sites are more strongly influenced by local river discharge, while the two northern chronologies are more strongly influenced by BiOS. These results highlight the broadscale importance of BiOS to the Adriatic system as well as the heterogeneity of nearshore environmental and drivers of growth. These G. pilosa chronologies provide unique multidecadal, continuous, biological time series to better understand the ecology and fine-scale variability of the Adriatic with potential for other shallow, semi-enclosed seas.
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Affiliation(s)
- Melita Peharda
- Institute of Oceanography and Fisheries, Split, Croatia
- * E-mail:
| | - Ivica Vilibić
- Institute of Oceanography and Fisheries, Split, Croatia
| | - Bryan Black
- Laboratory of Tree-Ring Research, The University of Arizona, Tucson, Arizona, United States of America
| | - Hana Uvanović
- Institute of Oceanography and Fisheries, Split, Croatia
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Ballesta-Artero I, Zhao L, Milano S, Mertz-Kraus R, Schöne BR, van der Meer J, Witbaard R. Environmental and biological factors influencing trace elemental and microstructural properties of Arctica islandica shells. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 645:913-923. [PMID: 30032087 DOI: 10.1016/j.scitotenv.2018.07.116] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 07/08/2018] [Accepted: 07/09/2018] [Indexed: 06/08/2023]
Abstract
Long-term and high-resolution environmental proxy data are crucial to contextualize current climate change. The extremely long-lived bivalve, Arctica islandica, is one of the most widely used paleoclimate archives of the northern Atlantic because of its fine temporal resolution. However, the interpretation of environmental histories from microstructures and elemental impurities of A. islandica shells is still a challenge. Vital effects (metabolic rate, ontogenetic age, and growth rate) can modify the way in which physiochemical changes of the ambient environment are recorded by the shells. To quantify the degree to which microstructural properties and element incorporation into A. islandica shells is vitally or/and environmentally affected, A. islandica specimens were reared for three months under different water temperatures (3, 8 and 13 °C) and food concentrations (low, medium and high). Concentrations of Mg, Sr, Na, and Ba were measured in the newly formed shell portions by laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS). The microstructures of the shells were analyzed by Scanning Electron Microscopy (SEM). Shell growth and condition index of each specimen were calculated at the end of the experimental period. Findings indicate that no significant variation in the morphometric characteristics of the microstructures were formed at different water temperatures or different food concentrations. Shell carbonate that formed at lowest food concentration usually incorporated the highest amounts of Mg, Sr and Ba relative to Ca+2 (except for Na) and was consistent with the slowest shell growth and lowest condition index at the end of the experiment. These results seem to indicate that, under food limitation, the ability of A. islandica to discriminate element impurities during shell formation decreases. Moreover, all trace element-to‑calcium ratios were significantly affected by shell growth rate. Therefore, physiological processes seem to dominate the control on element incorporation into A. islandica shells.
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Affiliation(s)
- Irene Ballesta-Artero
- NIOZ, Netherlands Institute for Sea Research and Utrecht University, Department of Coastal Systems, PO Box 59, 1790 AB, Den Burg, Texel, the Netherlands; NIOZ, Netherlands Institute for Sea Research and Utrecht University, Department of Estuarine and Delta Systems, PO Box 140, 4400 AC Yerseke, the Netherlands; Department of Animal Ecology, VU University Amsterdam, the Netherlands.
| | - Liqiang Zhao
- Institute of Geosciences, University of Mainz, Joh.-J.-Becher-Weg 21, 55128 Mainz, Germany
| | - Stefania Milano
- Institute of Geosciences, University of Mainz, Joh.-J.-Becher-Weg 21, 55128 Mainz, Germany
| | - Regina Mertz-Kraus
- Institute of Geosciences, University of Mainz, Joh.-J.-Becher-Weg 21, 55128 Mainz, Germany
| | - Bernd R Schöne
- Institute of Geosciences, University of Mainz, Joh.-J.-Becher-Weg 21, 55128 Mainz, Germany
| | - Jaap van der Meer
- NIOZ, Netherlands Institute for Sea Research and Utrecht University, Department of Coastal Systems, PO Box 59, 1790 AB, Den Burg, Texel, the Netherlands; Department of Animal Ecology, VU University Amsterdam, the Netherlands
| | - Rob Witbaard
- NIOZ, Netherlands Institute for Sea Research and Utrecht University, Department of Estuarine and Delta Systems, PO Box 140, 4400 AC Yerseke, the Netherlands
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