C. Wilkinson, Interocean Differences in Size and Nutrition of Coral Reef Sponge Populations, Science, vol.236, issue.4809, pp.1654-1657, 1987.
DOI : 10.1126/science.236.4809.1654

M. Diaz and K. Rützler, Sponges: an essential component of Caribbean coral reefs, Bull Mar Sci, vol.69, issue.2, pp.535-546, 2001.

U. Hentschel, K. Usher, and M. Taylor, Marine sponges as microbial fermenters, FEMS Microbiology Ecology, vol.49, issue.2, pp.167-177, 2006.
DOI : 10.1007/s00227-002-1000-9

URL : https://academic.oup.com/femsec/article-pdf/55/2/167/18100192/55-2-167.pdf

N. Webster, Sponge disease: a global threat?, Environmental Microbiology, vol.211, issue.6, pp.1363-1375, 2007.
DOI : 10.1016/j.biocon.2005.08.007

N. Webster and T. Thomas, ABSTRACT, mBio, vol.7, issue.2, pp.135-1600135, 2016.
DOI : 10.1128/mBio.00135-16

J. Vacelet and C. Donadey, Electron microscope study of the association between some sponges and bacteria, Journal of Experimental Marine Biology and Ecology, vol.30, issue.3, pp.301-314, 1977.
DOI : 10.1016/0022-0981(77)90038-7

S. Schmitt, P. Tsai, J. Bell, J. Fromont, M. Ilan et al., Assessing the complex sponge microbiota: core, variable and species-specific bacterial communities in marine sponges, The ISME Journal, vol.12, issue.3, pp.564-576, 2012.
DOI : 10.1007/BF02010474

URL : https://hal.archives-ouvertes.fr/hal-01766426

J. Reveillaud, L. Maignien, M. Eren, A. Huber, J. Apprill et al., Host-specificity among abundant and rare taxa in the sponge microbiome, The ISME Journal, vol.3, issue.6, pp.1198-1209
DOI : 10.1046/j.1462-2920.2001.00155.x

S. Rodríguez-marconi, R. De-la-iglesia, B. Díez, C. Fonseca, E. Hajdu et al., Characterization of bacterial, archaeal and eukaryote symbionts from Antarctic sponges reveals a high diver-sity at a three-domain level and a particular signature for this eco-system, PLoS One, vol.10, issue.9, p.138837, 2015.

N. Webster, H. Luter, R. Soo, E. Botté, R. Simister et al., Same, same but different: symbiotic bacterial associations in GBR sponges, Frontiers in Microbiology, vol.3, p.444, 2013.
DOI : 10.3389/fmicb.2012.00444

C. Gernert, F. Glöckner, G. Krohne, and U. Hentschel, Microbial Diversity of the Freshwater Sponge Spongilla lacustris, Microbial Ecology, vol.69, issue.2, pp.206-212, 2005.
DOI : 10.1016/S0723-2020(98)80067-2

R. Costa, T. Keller-costa, N. Gomes, U. Da-rocha, L. Van-overbeek et al., Evidence for Selective Bacterial Community Structuring in the Freshwater Sponge Ephydatia fluviatilis, Microbial Ecology, vol.30, issue.1, pp.232-244, 2013.
DOI : 10.1016/j.syapm.2006.06.001

A. Gladkikh, O. Kaluyzhnaya, O. Belykh, T. Ahn, and V. Parfenova, Analysis of bacterial communities of two Lake Baikal endemic sponge species, Microbiology, vol.39, issue.4, pp.682-693, 2014.
DOI : 10.1007/PL00011792

E. Seo, D. Jung, O. Belykh, N. Bukshuk, V. Parfenova et al., Comparison of bacterial diversity and species composition in three endemic Baikalian sponges, Annales de Limnologie - International Journal of Limnology, vol.152, issue.11, pp.27-32, 2016.
DOI : 10.1007/s00227-007-0708-y

E. Gaino, R. Pronzato, G. Corriero, and P. Buffa, Mortality of commercial sponges: Incidence in two mediterranean areas, Bolletino di zoologia, vol.23, issue.1, pp.79-85, 1992.
DOI : 10.1007/BF02010474

J. Vacelet, E. Vacelet, E. Gaino, and M. Gallissian, Bacterial attack of spongin skeleton during the 1986?1990 Mediterranean sponge disease, Sponges in time and space, pp.355-362, 1994.

T. Perez, J. Garrabou, S. Sartoretto, J. Harmelin, P. Francour et al., Mortalit?? massive d???invert??br??s marins??: un ??v??nement sans pr??c??dent en M??diterran??e nord-occidentale, Comptes Rendus de l'Acad??mie des Sciences - Series III - Sciences de la Vie, vol.323, issue.10, 2000.
DOI : 10.1016/S0764-4469(00)01237-3

. Sci and . Paris, Sciences de la vie, Life Sci, vol.32310, issue.00, pp.853-865, 1016.

J. Olson, D. Gochfeld, and M. Slattery, Aplysina red band syndrome: a new threat to Caribbean sponges, Diseases of Aquatic Organisms, vol.71, issue.2, pp.163-168, 2006.
DOI : 10.3354/dao071163

N. Webster, J. Xavier, M. Freckelton, C. Motti, and R. Cobb, during a disease outbreak, Environmental Microbiology, vol.37, issue.12, pp.3366-3376, 2008.
DOI : 10.1016/B978-0-12-372180-8.50042-1

J. Garrabou, R. Comaz, N. Bensoussan, M. Bally, P. Chevaldonne et al., Mass mortality in Northwestern Mediterranean rocky benthic communities: effects of the 2003 heat wave, Global Change Biology, vol.53, issue.5, pp.1090-1103, 2009.
DOI : 10.1111/j.1439-0485.2007.00155.x

URL : https://hal.archives-ouvertes.fr/hal-00687683

H. Luter, S. Whalan, and N. Webster, Exploring the Role of Microorganisms in the Disease-Like Syndrome Affecting the Sponge Ianthella basta, Applied and Environmental Microbiology, vol.76, issue.17, pp.5736-5744, 2010.
DOI : 10.1128/AEM.00653-10

M. Maldonado, L. Sánchez-tocino, and C. Navarro, Recurrent disease outbreaks in corneous demosponges of the genus Ircinia: epidemic incidence and defense mechanisms, Marine Biology, vol.127, issue.7, pp.1577-1590, 2010.
DOI : 10.1016/j.biocon.2005.08.007

H. Angermeier, J. Kamke, U. Abdelmohsen, G. Krohne, J. Pawlik et al., The pathology of sponge orange band disease affecting the Caribbean barrel sponge Xestospongia muta, FEMS Microbiology Ecology, vol.127, issue.2, pp.218-230, 2011.
DOI : 10.1016/j.biocon.2005.08.007

H. Angermeier, V. Glöckner, J. Pawlik, N. Lindquist, and U. Hentschel, Sponge white patch disease affecting the Caribbean sponge Amphimedon compressa, Diseases of Aquatic Organisms, vol.99, issue.2, pp.95-102, 2012.
DOI : 10.3354/dao02460

M. Sweet, M. Bulling, and C. Cerrano, A novel sponge disease caused by a consortium of micro-organisms, Coral Reefs, vol.84, issue.3, pp.871-883, 2015.
DOI : 10.1139/z06-019

A. Blanquer, M. Uriz, E. Cebrian, and P. Galand, Snapshot of a Bacterial Microbiome Shift during the Early Symptoms of a Massive Sponge Die-Off in the Western Mediterranean, Frontiers in Microbiology, vol.219, issue.e2393, p.752, 2016.
DOI : 10.1126/science.219.4583.410

URL : https://hal.archives-ouvertes.fr/hal-01331105

T. Pérez and J. Vacelet, Effect of climatic and anthropogenic disturbances on sponge fisheries The Mediterranea Sea: its history and present challenges, pp.577-587, 2014.

C. Harvell, K. Kim, J. Burkholder, R. Colwell, P. Epstein et al., Emerging Marine Diseases--Climate Links and Anthropogenic Factors, Science, vol.285, issue.5433, pp.1505-1510, 1999.
DOI : 10.1126/science.285.5433.1505

J. Wulff, n. sp. (Demospongiae, Poecilosclerida), The Biological Bulletin, vol.211, issue.1, pp.83-94, 2006.
DOI : 10.2307/4134581

URL : https://hal.archives-ouvertes.fr/inserm-00381703

C. Cerrano and G. Bavestrello, Massive mortalities and extinctions, pp.295-307, 2009.

C. Lejeusne, P. Chevaldonné, C. Pergent-martini, C. Boudouresque, and T. Pérez, Climate change effects on a miniature ocean: the highly diverse, highly impacted Mediterranean Sea, Trends in Ecology & Evolution, vol.25, issue.4, pp.250-260, 2010.
DOI : 10.1016/j.tree.2009.10.009

URL : https://hal.archives-ouvertes.fr/hal-00618668

E. Cebrian, M. Uriz, J. Garrabou, and E. Ballesteros, Sponge Mass Mortalities in a Warming Mediterranean Sea: Are Cyanobacteria-Harboring Species Worse Off?, PLoS ONE, vol.26, issue.6, 2011.
DOI : 10.1371/journal.pone.0020211.t004

L. Stabili, F. Cardone, P. Alifano, S. Tredici, S. Piraino et al., Epidemic Mortality of the Sponge Ircinia variabilis (Schmidt, 1862) Associated to Proliferation of a Vibrio Bacterium, Microbial Ecology, vol.26, issue.1, pp.802-813, 2012.
DOI : 10.1046/j.1365-2761.2003.00437.x

J. Carballo, E. Bautista, H. Nava, J. Cruz-barraza, and J. Chávez, Boring sponges, an increasing threat for coral reefs affected by bleaching events, Ecology and Evolution, vol.210, issue.4, pp.872-886, 2013.
DOI : 10.1242/jeb.02627

S. Sokolow, Effects of a changing climate on the dynamics of coral infectious disease: a review of the evidence, Diseases of Aquatic Organisms, vol.87, issue.12, pp.5-18, 2009.
DOI : 10.3354/dao02099

L. Fan, M. Liu, R. Simister, N. Webster, and T. Thomas, Marine microbial symbiosis heats up: the phylogenetic and functional response of a sponge holobiont to thermal stress, The ISME Journal, vol.64, issue.5, pp.991-1002, 2013.
DOI : 10.1023/A:1020565701210

N. Webster, A. Negri, R. Webb, and R. Hill, A spongin-boring a-proteobacterium is the etiological agent of disease in the Great Barrier Reef sponge Rhopaloeides odorabile, Marine Ecology Progress Series, vol.232, pp.305-309, 2002.
DOI : 10.3354/meps232305

J. Cervino, K. Winiarski-cervino, S. Polson, T. Goreau, and G. Smith, Identification of bacteria associated with a disease affecting the marine sponge Ianthella basta in New Britain, Papua New Guinea, Marine Ecology Progress Series, vol.324, pp.139-150, 2006.
DOI : 10.3354/meps324139

P. Galstoff, H. Brown, C. Smith, and F. Smith, Sponge mortality in the Bahamas, Nature, vol.143, pp.807-808, 1939.

P. Galstoff, Wasting disease causing mortality of sponges in the West Indies and Gulf of Mexico, Proc. 8th Amer Sci Cong, pp.411-412, 1942.

J. Vacelet and M. Gallissian, Virus-like particles in cells of the sponge Verongia cavernicola (demospongiae, dictyoceratida) and accompanying tissues changes, Journal of Invertebrate Pathology, vol.31, issue.2, pp.246-254, 1978.
DOI : 10.1016/0022-2011(78)90014-9

F. Smith, Sponge Mortality at British Honduras, Nature, vol.144, issue.3653, p.785, 1939.
DOI : 10.1038/144785a0

A. Sparks, Synopsis of invertebrate pathology: exclusive of insects, 1985.

K. Rützler, Mangrove sponge disease induced by cyanobacterial symbionts: failure of a primitive immune system?, Diseases of Aquatic Organisms, vol.5, pp.143-149, 1988.
DOI : 10.3354/dao005143

D. Camillo, C. Bartolucci, I. Cerrano, C. Bavestrello, and G. , Sponge disease in the Adriatic Sea, Marine Ecology, vol.116, issue.1, pp.62-71, 2013.
DOI : 10.1242/jcs.00277

M. Sweet, D. Burn, A. Croquer, and P. Leary, Characterisation of the Bacterial and Fungal Communities Associated with Different Lesion Sizes of Dark Spot Syndrome Occurring in the Coral Stephanocoenia intersepta, PLoS ONE, vol.18, issue.46, 2013.
DOI : 10.1371/journal.pone.0062580.t002

J. Choudhury, A. Pramanik, N. Webster, L. Llewellyn, R. Gachhui et al., The Pathogen of the Great Barrier Reef Sponge Rhopaloeides odorabile Is a New Strain of Pseudoalteromonas agarivorans Containing Abundant and Diverse Virulence-Related Genes, Marine Biotechnology, vol.66, issue.4, pp.463-478, 2015.
DOI : 10.1111/j.1365-2958.2007.05993.x

S. Efremova, Porifera In: Timoshkin OA (ed) An annotat-ed list of the fauna of Lake Baikal and its catchment area, Nauka, pp.177-90, 2001.

Y. Masuda, Studies on the Taxonomy and Distribution of Freshwater Sponges in Lake Baikal, Prog Mol Subcell Biol, vol.47, pp.81-110, 2009.
DOI : 10.1007/978-3-540-88552-8_4

O. Timoshkin, V. Malnik, M. Sakirko, and C. Boedeker, Ecological crisis at Lake Baikal: scientists diagnose, Sci First Hand, vol.5, pp.75-91, 2014.

O. Kaluzhnaya and V. Itskovich, Bleaching of Baikalian sponge affects the taxonomic composition of symbiotic microor-ganisms, Genetika, vol.51, issue.11, pp.1335-1340, 2015.

O. Timoshkin, D. Samsonov, M. Yamamuro, M. Moore, O. Belykh et al., Rapid ecological change in the coastal zone of Lake Baikal (East Siberia): Is the site of the world's greatest freshwater biodiversity in danger?, Journal of Great Lakes Research, vol.42, issue.3, pp.487-497, 2016.
DOI : 10.1016/j.jglr.2016.02.011

P. Rezvoi, Freshwater sponges of the USSR In: Rezvoi PD (ed) The fauna of the USSR, Academy of Sciences, issue.2, pp.21-41, 1936.

I. Mikhailov, Y. Zakharova, Y. Galachyants, M. Usoltseva, D. Petrova et al., Similarity of structure of taxonomic bacterial communities in the photic layer of Lake Baikal???s three basins differing in spring phytoplankton composition and abundance, Doklady Biochemistry and Biophysics, vol.2, issue.3, pp.413-419, 2015.
DOI : 10.1016/j.gsf.2011.06.002

A. Semenov, Guidance on the chemical analysis of surface waters, 1977.

N. Stroganov and N. Buzinova, Practical guide in hydrochemistry, 1980.

R. Wetzel and G. Likens, Limnological analyses, 1991.

M. Shimaraev, V. Domysheva, C. Goldman, M. Kumagai, and R. Robarts, Trends in hydrological and hydrochemical processes in Lake Baikal under conditions of modern climate change Climatic change and global warming of inland waters: impacts and mitigation for ecosystems and societies, pp.43-66, 2013.

V. Domysheva, Hydrochemistry, Baikal: nature and people. Ecos, Ulan-Ude, pp.68-70, 2009.

M. Sakirko, V. Domysheva, D. Pestunov, O. Netsvetaeva, and M. Panchenko, Concentration of nutrients in the water of Southern Baikal in summer, Proc of SPIE, vol.9680, issue.968045, pp.1-7, 2015.

T. Khodzher, V. Domysheva, and L. Sorokovikova, Methods for monitoring the chemical composition of Lake Baikal water (eds) Novel methods for monitoring and managing land and water resources in Siberia, pp.113-142, 2016.

R. Newton, M. Bootsma, and H. Morrison, A Microbial Signature Approach to Identify Fecal Pollution in the Waters Off an Urbanized Coast of Lake Michigan, Microbial Ecology, vol.77, issue.9, pp.1011-1023, 2013.
DOI : 10.1128/AEM.02988-10

P. Schloss, S. Westcott, T. Ryabin, J. Hall, M. Hartmann et al., Introducing mothur: Open-Source, Platform-Independent, Community-Supported Software for Describing and Comparing Microbial Communities, Applied and Environmental Microbiology, vol.75, issue.23, pp.7537-754101541, 2009.
DOI : 10.1128/AEM.01541-09

B. Haas, D. Gevers, A. Earl, M. Feldgarden, D. Ward et al., Chimeric 16S rRNA sequence formation and de-tection in Sanger and 454-pyrosequenced PCR amplicons, 2011.

C. Quast, E. Pruesse, P. Yilmaz, J. Gerken, T. Schweer et al., The SILVA ribosomal RNA gene database project: improved data processing and web-based tools, Nucleic Acids Research, vol.35, issue.D1, pp.41-590, 2013.
DOI : 10.1093/nar/gkl856

T. Desantis, P. Hugenholtz, N. Larsen, M. Rojas, E. Brodie et al., Greengenes, a Chimera-Checked 16S rRNA Gene Database and Workbench Compatible with ARB, Applied and Environmental Microbiology, vol.72, issue.7, pp.5069-507203006, 2006.
DOI : 10.1128/AEM.03006-05

Y. He, J. Caporaso, X. Jiang, H. Sheng, S. Huse et al., Stability of operational taxonomic units: an important but neglected property for analyzing microbial diversity, Microbiome, vol.1, issue.1, 2015.
DOI : 10.1186/2047-217X-1-7

L. Kravtsova, L. Izhboldina, I. Khanaev, G. Pomazkina, V. Domysheva et al., Disturbances of the vertical zoning of green algae in the coastal part of the Listvennichnyi gulf of Lake Baikal, Doklady Biological Sciences, vol.39, issue.3/4, pp.227-229, 2012.
DOI : 10.1134/S0012496612060026

L. Kravtsova, L. Izhboldina, I. Khanaev, G. Pomazkina, E. Rodionova et al., Nearshore benthic blooms of filamentous green algae in Lake Baikal, Journal of Great Lakes Research, vol.40, issue.2, pp.441-448, 2014.
DOI : 10.1016/j.jglr.2014.02.019

S. Gaikwad, Y. Shouche, and W. Gade, Microbial community structure of two freshwater sponges using Illumina MiSeq sequenc-ing revealed high microbial diversity. AMB Expr 6:40. https, pp.13568-13584, 2016.

V. Vicente, Regional Commercial Sponge Extinctions in the West Indies: Are Recent Climatic Changes Responsible?, Marine Ecology, vol.13, issue.65, pp.179-191, 1989.
DOI : 10.1126/science.214.4522.749

C. Roder, C. Arif, and C. Daniels, Bacterial profiling of White Plague Disease across corals and oceans indicates a conserved and distinct disease microbiome, Molecular Ecology, vol.45, issue.4, pp.965-974, 2014.
DOI : 10.1007/978-3-662-06414-6_3

A. Miller and L. Richardson, A meta-analysis of 16S rRNA gene clone libraries from the polymicrobial black band disease of corals, FEMS Microbiology Ecology, vol.54, issue.2, pp.231-241, 2011.
DOI : 10.1007/978-3-662-06414-6_2

N. Denikina, E. Dzyuba, N. Belikov, and S. , The first case of disease of the sponge Lubomirskia Baicalensis: inves-tigation of its microbiome, Biol Bull, vol.3, pp.315-322, 2016.

R. Kantor, K. Wrighton, K. Handley, I. Sharon, L. Hug et al., Small genomes and sparse metabolisms of sediment-associated bacteria from four can-didate phyla, MBio, vol.4, issue.5, pp.708-721, 2013.

P. Dennis, J. Seymour, K. Kumbun, and G. Tyson, Diverse populations of lake water bacteria exhibit chemotaxis towards inorganic nutrients, The ISME Journal, vol.55, issue.8, pp.1661-1664, 2013.
DOI : 10.1099/ijs.0.004333-0

D. Kirchman, The ecology of Cytophaga???Flavobacteria in aquatic environments, FEMS Microbiology Ecology, vol.39, issue.2, pp.91-100, 2002.
DOI : 10.1016/S0168-6496(01)00206-9

R. Newton and S. Mclellan, A unique assemblage of cosmo-politan freshwater bacteria and higher community diversity differ-entiate an urbanized estuary from oligotrophic Lake Michigan, Front Microbiol, vol.6, 1028.

Q. Liang, X. Zhang, K. Lee, Y. Wang, K. Yu et al., Nitrogen removal and water microbiota in grass carp culture following supplementation with Bacillus licheniformis BSK-4, World Journal of Microbiology and Biotechnology, vol.45, issue.1, 2015.
DOI : 10.1111/j.1365-2109.2012.03212.x

A. Cárdenas, R. Lm, V. Pizarro, L. Cadavid, and C. Arévalo-ferro, Shifts in bacterial communities of two caribbean reef-building coral species affected by white plague disease, The ISME Journal, vol.2, issue.3, pp.502-512, 2012.
DOI : 10.1128/AEM.00592-09

G. Hansen, O. Bergh, J. Michaelsen, and D. Knappskog, Flexibacter ovolyticus sp. nov., a Pathogen of Eggs and Larvae of Atlantic Halibut, Hippoglossus hippoglossus L., International Journal of Systematic Bacteriology, vol.42, issue.3, pp.451-45800207713, 1992.
DOI : 10.1099/00207713-42-3-451

A. Declercq, F. Haesebrouck, W. Van-den-broeck, P. Bossier, and A. Decostere, Columnaris disease in fish: a review with em-phasis on bacterium-host interaction, Vet Res, vol.44, issue.1, pp.271297-9716, 2013.

A. Willems, E. Rosenberg, E. Delong, S. Lory, E. Stackebrandt et al., The family Comamonadaceae The pro-karyotes: Alphaproteobacteria and Betaproteobacteria, pp.777-851, 2014.

D. Verner-jeffreys, M. Pond, E. Peeler, G. Rimmer, B. Oidtmann et al., Emergence of cold water strawberry disease of rainbow trout Oncorynchus mykiss in England and Wales: outbreak investigations and transmission studies, Diseases of Aquatic Organisms, vol.79, issue.3, pp.207-218, 2008.
DOI : 10.3354/dao01916