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  • 1
    Publication Date: 2023-12-12
    Description: 〈title xmlns:mml="http://www.w3.org/1998/Math/MathML"〉Abstract〈/title〉〈p xmlns:mml="http://www.w3.org/1998/Math/MathML" xml:lang="en"〉Global warming, bioinvasions, and parasitism affect single‐species performances and species interactions, substantially impacting the structure and stability of marine ecosystems. In light of accelerated global change, the information derived from studies focusing on single species and single drivers is insufficient, calling for a multi‐stressor approach under near‐natural conditions. We investigated the effects of warming (+3°C) on the performance of a benthic community composed of native and invasive macroalgae, consumers and a trematode parasite in a mesocosm setting. We also assessed the effects of warming and parasitism on the survival and growth of gastropods and mussels and the thermal dependency of trematode performance. Our findings show that warming and grazing by infected gastropods had a large detrimental effect on the invasive macroalga growth. Furthermore, the single and interactive effects of parasitism and warming were detrimental to intermediate host survival and growth, especially to large mussels. Finally, cercarial emergence positively correlated to the natural peaks of summer temperatures, while infection intensity in mussels was higher in larger individuals. Our findings suggest that grazing and warming will be detrimental to the invasive macroalga, favoring the native alga. Moreover, parasitism will enhance grazing, especially in summer, when higher temperatures trigger parasite development. However, parasite‐enhanced grazing may be buffered by higher mortality or a shift in the size of infected intermediate hosts under warming. Our findings demonstrate how complex effects of ocean warming can be on food webs and how they can be mediated by parasitism and, as a result, influence native and invasive macroalgae differently.〈/p〉
    Description: Bundesministerium für Bildung und Forschung http://dx.doi.org/10.13039/501100002347
    Keywords: ddc:577.7 ; Baltic community ; climate change ; bioinvasions ; parasitism ; interactive effects ; macroalgae growth
    Language: English
    Type: doc-type:article
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  • 2
    Publication Date: 2022-10-18
    Description: © The Author(s), 2022. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Orenstein, E., Ayata, S., Maps, F., Becker, É., Benedetti, F., Biard, T., Garidel‐Thoron, T., Ellen, J., Ferrario, F., Giering, S., Guy‐Haim, T., Hoebeke, L., Iversen, M., Kiørboe, T., Lalonde, J., Lana, A., Laviale, M., Lombard, F., Lorimer, T., Martini, S., Meyer, A., Möller, K.O., Niehoff, B., Ohman, M.D., Pradalier, C., Romagnan, J.-B., Schröder, S.-M., Sonnet, V., Sosik, H.M., Stemmann, L.S., Stock, M., Terbiyik-Kurt, T., Valcárcel-Pérez, N., Vilgrain, L., Wacquet, G., Waite, A.M., & Irisson, J. Machine learning techniques to characterize functional traits of plankton from image data. Limnology and Oceanography, 67(8), (2022): 1647-1669, https://doi.org/10.1002/lno.12101.
    Description: Plankton imaging systems supported by automated classification and analysis have improved ecologists' ability to observe aquatic ecosystems. Today, we are on the cusp of reliably tracking plankton populations with a suite of lab-based and in situ tools, collecting imaging data at unprecedentedly fine spatial and temporal scales. But these data have potential well beyond examining the abundances of different taxa; the individual images themselves contain a wealth of information on functional traits. Here, we outline traits that could be measured from image data, suggest machine learning and computer vision approaches to extract functional trait information from the images, and discuss promising avenues for novel studies. The approaches we discuss are data agnostic and are broadly applicable to imagery of other aquatic or terrestrial organisms.
    Description: SDA acknowledges funding from CNRS for her sabbatical in 2018–2020. Additional support was provided by the Institut des Sciences du Calcul et des Données (ISCD) of Sorbonne Université (SU) through the support of the sponsored junior team FORMAL (From ObseRving to Modeling oceAn Life), especially through the post-doctoral contract of EO. JOI acknowledges funding from the Belmont Forum, grant ANR-18-BELM-0003-01. French co-authors also wish to thank public taxpayers who fund their salaries. This work is a contribution to the scientific program of Québec Océan and the Takuvik Joint International Laboratory (UMI3376; CNRS - Université Laval). FM was supported by an NSERC Discovery Grant (RGPIN-2014-05433). MS is supported by the Research Foundation - Flanders (FWO17/PDO/067). FB received support from ETH Zürich. MDO is supported by the Gordon and Betty Moore Foundation and the U.S. National Science Foundation. ECB is supported by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) under the grant agreement no. 88882.438735/2019-01. TB is supported by the French National Research Agency (ANR-19-CE01-0006). NVP is supported by the Spanish State Research Agency, Ministry of Science and Innovation (PTA2016-12822-I). FL is supported by the Institut Universitaire de France (IUF). HMS was supported by the Simons Foundation (561126) and the U.S. National Science Foundation (CCF-1539256, OCE-1655686). Emily Peacock is gratefully acknowledged for expert annotation of IFCB images. LS was supported by the Chair VISION from CNRS/Sorbonne Université.
    Repository Name: Woods Hole Open Access Server
    Type: Article
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  • 3
    Publication Date: 2022-08-15
    Description: Plankton imaging systems supported by automated classification and analysis have improved ecologists' ability to observe aquatic ecosystems. Today, we are on the cusp of reliably tracking plankton populations with a suite of lab-based and in situ tools, collecting imaging data at unprecedentedly fine spatial and temporal scales. But these data have potential well beyond examining the abundances of different taxa; the individual images themselves contain a wealth of information on functional traits. Here, we outline traits that could be measured from image data, suggest machine learning and computer vision approaches to extract functional trait information from the images, and discuss promising avenues for novel studies. The approaches we discuss are data agnostic and are broadly applicable to imagery of other aquatic or terrestrial organisms.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , NonPeerReviewed
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  • 4
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    PANGAEA
    In:  Supplement to: Peleg, Ohad; Guy-Haim, Tamar; Yeruham, Erez; Silverman, Jacob; Rilov, Gil (accepted): Tropicalisation may invert trophic state and carbon budget of shallow temperate rocky reefs. Journal of Ecology, https://doi.org/10.1111/1365-2745.13329
    Publication Date: 2023-04-21
    Description: The southeastern Mediterranean reefs may be classified into three habitat types: (1) 'algal forests', dominated by the native canopy forming Cystoseira rayssiae; (2) 'turf', low lying short algae; and (3) 'tropical shrubs', dominated by the tropical alien Galaxaura rugosa that forms algal shrubs. During May 2016 we conducted in-situ benthic incubations over six 0.125 m2 plots of reef per each habitat type, to measure primary production, respiration, calcification and CaCO3- dissolution. For that, dissolved organic carbon (DIC), total alkalinity (TA) and dissolved oxygen (DO) were measured. We collected the community from the incubation plots and analysed biomass (wet weight, WW; dry weight, DW; and ash-free dry weight, AFDW) for the various taxa.
    Keywords: Algal forest; benthic incubations; calcification dissolution; DIC; Diel flux budget; DO; organic/inorganic biomass; primary production respiration; TA alkalinity; tropical shrubs; turf
    Type: Dataset
    Format: application/zip, 3 datasets
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  • 5
    Publication Date: 2023-04-21
    Keywords: Algal forest; benthic incubations; calcification dissolution; Calculated; Community diel dissolved inorganic carbon, flux, calcification/calcium carbonate dissolution; Community diel dissolved inorganic carbon, flux, primary production/respiration; Community diel dissolved inorganic carbon, flux, total; Community diel oxygen, flux; DIC; Diel flux budget; DO; Event label; Gross primary production, dissolved inorganic carbon; Gross primary production of oxygen; Habitat; INCUB; Incubation; Mediterranean Sea; Net community calcification, dark; Net community calcification, light; Net community production, dissolved inorganic carbon; Net community production, oxygen; Net community respiration, dissolved inorganic carbon; Net community respiration, oxygen; organic/inorganic biomass; primary production respiration; Replicates; Season; SE-Mediterranean_Algal_Forest; SE-Mediterranean_Tropical_Shrubs; SE-Mediterranean_Turf; TA alkalinity; tropical shrubs; turf
    Type: Dataset
    Format: text/tab-separated-values, 270 data points
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  • 6
    Publication Date: 2023-03-25
    Description: Microfouling (expressed as cell numbers per cm2) by bacteria and diatoms in response to warming (+0, 2 and 4°C) and upwelling during upwelling event 3.
    Keywords: Benthocosm_B2; Benthocosm_C1; Benthocosm_C2; Benthocosm_D1; Benthocosm_E2; Benthocosm_F2; coastal upwelling; community level response; DATE/TIME; Diatoms; driver interactions; Event label; Experiment duration; hypoxia; Identification; Kiel Fjord; MESO; Mesocosm experiment; multifactorial environmental change; ocean warming; Prokaryotes; seasonal fluctuations; seaweed communities; Treatment
    Type: Dataset
    Format: text/tab-separated-values, 108 data points
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  • 7
    Publication Date: 2023-01-13
    Description: Defense strength as log effect ratio against microfouling by Bacillus sp., Cytophaga sp. and Vibrio sp. (averaged). Effect size 〉 0 indicates an attractive effect of surface-bond metabolites, effect size 〈 0 an inhibitory effect with the strongest defense at lowest values. Responses are detailed with regards to the four treatments: warm (+°C (delta+5)), acidified (-pH (delta +700µatm pCO2)), warm and acidified (+°C -pH), and ambient during four seasons: spring, summer, autumn, winter (n=3). The data set comprised 4 experimental runs: spring experiment (4.4.-10.6.2013), summer experiment 1 (4.7.-17.9.2013), autumn experiment (11.10-16.12.2013), winter experiment (16.1. - 28.3.2014).
    Keywords: Benthocosm_A1; Benthocosm_A2; Benthocosm_B1; Benthocosm_B2; Benthocosm_C1; Benthocosm_C2; Benthocosm_D1; Benthocosm_D2; Benthocosm_E1; Benthocosm_E2; Benthocosm_F1; Benthocosm_F2; Defense strength; Event label; Experiment; Experimental treatment; Kiel Fjord; MESO; Mesocosm experiment; Species
    Type: Dataset
    Format: text/tab-separated-values, 240 data points
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  • 8
    Publication Date: 2023-01-13
    Description: Defense strength as log effect ratio against macrofouling by Mytilus edulis and Amphibalanus imrovisus. Effect size 〉 0 indicate an attractive effect of surface-bond metabolites, effect size 〈 0 an inhibitory effect with strongest defense at lowest values. Responses are displayed in regard to the four treatments: warm (+°C (delta+5)), acidified (-pH (delta +700µatm pCO2)), warm and acidified (+°C -pH), and ambient during four seasons: spring, summer, autumn, winter (n=3) The data set comprised 4 experimental runs: spring experiment (4.4.-10.6.2013), summer experiment 1 (4.7.-17.9.2013), autumn experiment (11.10-16.12.2013), winter experiment (16.1. - 28.3.2014).
    Keywords: Benthocosm_A1; Benthocosm_A2; Benthocosm_B1; Benthocosm_B2; Benthocosm_C1; Benthocosm_C2; Benthocosm_D1; Benthocosm_D2; Benthocosm_E1; Benthocosm_E2; Benthocosm_F1; Benthocosm_F2; Defense strength; Event label; Experiment; Experimental treatment; Kiel Fjord; MESO; Mesocosm experiment; Species
    Type: Dataset
    Format: text/tab-separated-values, 568 data points
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  • 9
    Publication Date: 2023-01-13
    Description: Palatability as consumption of F. vesiculosus pellets by Idotea baltica (squares consumed in %). Consumption is displayed in regard to the four treatments: warm (+°C (delta+5)), acidified (-pH (delta +700µatm pCO2)), warm and acidified (+°C -pH), and ambient during four seasons: spring, summer, autumn, winter (n=3). The data set comprised 4 experimental runs: spring experiment (4.4.-10.6.2013), summer experiment 1 (4.7.-17.9.2013), autumn experiment (11.10-16.12.2013), winter experiment (16.1. - 28.3.2014).
    Keywords: Benthocosm_A1; Benthocosm_A2; Benthocosm_B1; Benthocosm_B2; Benthocosm_C1; Benthocosm_C2; Benthocosm_D1; Benthocosm_D2; Benthocosm_E1; Benthocosm_E2; Benthocosm_F1; Benthocosm_F2; Event label; Experiment; Experimental treatment; Kiel Fjord; MESO; Mesocosm experiment; Palatability; Species
    Type: Dataset
    Format: text/tab-separated-values, 288 data points
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  • 10
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    Unknown
    PANGAEA
    In:  Israel Oceanographic and Limnological Research Ltd.
    Publication Date: 2023-01-13
    Keywords: Israel; MULT; Multiple investigations; Shikmona
    Type: Dataset
    Format: application/zip, 26.4 kBytes
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