1urn:lsid:arphahub.com:pub:F9B2E808-C883-5F47-B276-6D62129E4FF4urn:lsid:zoobank.org:pub:245B00E9-BFE5-4B4F-B76E-15C30BA74C02Biodiversity Data JournalBDJ1314-28361314-2828Pensoft Publishers10.3897/BDJ.4.e798479845018Taxonomic PaperPoriferaBiogeographyMarine Biota & EcosystemsCatalogues and ChecklistsAquatic biologyFaunistics & DistributionFreshwater Biota & EcosystemsSouthern Europe and MediterraneanGreecePorifera of Greece: an updated checklistVoultsiadouElenielvoults@bio.auth.gr1GerovasileiouVasilisvgerovas@hcmr.grhttps://orcid.org/0000-0002-9143-74802BaillyNicolashttps://orcid.org/0000-0003-4994-06532Department of Zoology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, GreeceDepartment of Zoology, School of Biology, Aristotle University of ThessalonikiThessalonikiGreeceInstitute of Marine Biology, Biotechnology and Aquaculture, Hellenic Centre for Marine Research, Heraklion, GreeceInstitute of Marine Biology, Biotechnology and Aquaculture, Hellenic Centre for Marine ResearchHeraklionGreece
2016011120164e7984FFEBA50E-FF84-B152-0D25-FFF1FFBCFFCF1640573101201617072016Eleni Voultsiadou, Vasilis Gerovasileiou, Nicolas BaillyThis is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.Background
The checklist of Porifera of Greece was created in the framework of the Greek Taxon Information System (GTIS), an initiative of the LifeWatchGreece Research Infrastructure (ESFRI) that has resumed efforts to compile a complete checklist of species recorded from Greece. An updated checklist of Porifera was created on the basis of a list of the Aegean Demospongiae and Homoscleromorpha published one decade ago. All records of species known to occur in Greek waters were taxonomically validated and cross-checked for possible inaccuracies and omissions. Then, all recent publications were reviewed and the species recorded from 2006 to date were added to the list.
New information
The updated checklist of Porifera of Greece comprises 215 species, classified to 111 genera, 65 families, 24 orders, and 4 classes. In total, 34 new additions were made to the previous species list (8 Calcarea, 17 Demospongiae, 1 Hexactinellida, and 6 Homoscleromorpha) with Calcarea being listed for the first time from the area. The demosponge orders Poecilosclerida, Dictyoceratida, Tetractinellida, Haplosclerida, and Suberitida have the highest number of species covering 62% of the known Greek sponge species richness. It is worth mentioning that 8 species have been first described from Greek waters, 7 of which are considered endemic to this area. Our bibliographic overview also revealed knowledge gaps with regard to specific habitats typically rich in sponge diversity, and marine sectors of Greece.
SpongesDemospongiaeHomoscleromorphaCalcareaHexactinellidaAegean SeaSea of CreteLevantine SeaIonian SeaEastern MediterraneanLifeWatchGreeceIntroduction
The history of sponge science is directly linked to Greek civilization, since the older written references to sponges are found in Homer’s Epics, and their scientific knowledge has been established by the Greek philosopher, and first marine biologist, Aristotle in his zoological works (Voultsiadou 2007).
In modern times, research on Porifera of the Greek seas started early in the 20th century with the study of bath sponges, i.e., the members of the family Spongiidae (Szymanski 1904, Arndt 1937). In the subsequent decades, up to the 1980s, a series of scattered records of sponge species followed, which can be traced either in faunistic papers (Pérès and Picard 1958, Tortonese 1947) or in more general works on Porifera (Topsent 1920, Vacelet 1969, Griessinger 1971, Pulitzer-Finali 1983).
The systematic research on Greek Porifera started in the 1990s when the Laboratory of Zoology, Aristotle University of Thessaloniki, presented a series of publications on the Aegean sponge taxonomy, ecology and biogeography. New species were described (Voultsiadou-Koukoura and van Soest 1991a, Voultsiadou-Koukoura and van Soest 1991b, Voultsiadou-Koukoura et al. 1991), species lists presented (Voultsiadou-Koukoura and Koukouras 1993, Voultsiadou-Koukoura and van Soest 1993), and the associations of sponges with other invertebrates investigated (Koukouras et al. 1996 and references therein). A checklist of all Aegean sponge species reported up to 2005 and an overview of the relevant literature was provided by Voultsiadou (2005a) and followed by two publications on the distribution of Aegean and Levantine Porifera in the Mediterranean context (Voultsiadou 2005b, Voultsiadou 2009).
The recent study of sponges in the Greek seas comprises taxonomic accounts, including molecular works (Kefalas and Castritsi-Catharios 2007, Kefalas and Castritsi-Catharios 2012, Vacelet et al. 2008, Dailianis et al. 2011), faunistic and ecological papers (Voultsiadou et al. 2010, Voultsiadou et al. 2011, Gerovasileiou and Voultsiadou 2012, Bianchi et al. 2014), and records of species in publications focusing on particular sponge taxa (Ereskovsky et al. 2009).
The aforementioned literature addresses mainly the classes Demospongiae and Homoscleromorpha. No research on Hexactinellida of the Greek seas has been carried out (but see Boury-Esnault et al. 2014), while few species of Calcarea have been recorded mostly in general faunistic publications (e.g. Pansini et al. 2000, Gerovasileiou et al. 2015).
The aim of the present work was to present an updated, annotated checklist of Porifera of the Greek seas. For this purpose, older lists of the classes Demospongiae and Homoscleromorpha were updated according to the recent literature and taxonomic status, and a first attempt to provide a catalogue of Calcarea was made.
Materials and methods
The Checklist of Porifera of Greece (Suppl. material 1) was created in the framework of the Greek Taxon Information System (GTIS), an initiative of the LifeWatchGreece Research Infrastructure (ESFRI) that has resumed efforts to compile a complete checklist of all species reported from Greece (Bailly et al. 2016). In that publication, a methodology is described to produce Preliminary Checklists only. However, in the present case of Porifera, the status of the list for Greece was quite advanced, and the recent primary literature was exhaustively searched for this work: the present list is thus considered as an updated, annotated, and archived checklist.
The checklist of Demospongiae and Homoscleromorpha was constructed based on a previous inclusive list of the Aegean sponges published by Voultsiadou (2005a). A cross-checking of all species names was carried out and some names were updated according to the World Porifera Database (WPD) (Van Soest et al. 2016) which is part of the World Register of Marine Species (WoRMS) initiative (WoRMS Editorial Board 2016). Four species [i.e. Cerbariscurvispiculifer (Carter, 1880), Oceanapiafistulosa (Bowerbank, 1873), Petrosia (Strongylophora) vansoesti Boury-Esnault, Pansini & Uriz, 1994, and Pseudosuberiteshyalinus (Ridley & Dendy, 1886)] were deleted because their Mediterranean records have been considered invalid according to the WPD. Nine of the species mentioned in that list [i.e. Acarnustortilis Topsent, 1892, Clathria (Clathria) coralloides (Scopoli, 1772), Clionavermifera Hancock, 1867, Cliothosahancocki (Topsent, 1888), Holoxeafurtiva Topsent, 1892, Lissodendoryx (Anomodoryx) cavernosa (Topsent, 1892), Placospongiadecorticans (Hanitsch, 1895), Rhabderemiatopsenti van Soest & Hooper, 1993, and Timeamixta (Topsent, 1896)] were not included in the present checklist, since they have been to date reported only from the Turkish coast of the Aegean Sea, but not from the Greek waters. Then, all recent publications were reviewed and the species recorded from 2006 to date have been added to the list. The records of freshwater species from Greece were derived from the catalogue published by Pronzato and Manconi (2001).
A total of 215 species, classified to 111 genera, 65 families, 24 orders, and 4 classes makes the updated checklist of Porifera of Greece. Demosponges and Homoscleromorpha make up the bulk of Porifera of Greece, while only 8 species of Calcarea are listed for the first time from the area. As it can be seen from the list, the orders Poecilosclerida, Dictyoceratida, Tetractinellida, Haplosclerida, and Suberitida have the highest number of species comprising 62% of the known Greek sponge species richness.
The majority of species included in the present checklist were already known as elements of the Greek fauna (Voultsiadou 2005a), while 34 new additions were made in the course of this study (Table 1). These additions include 8 species of Calcarea, 17 species of Demospongiae, 1 species of Hexactinellida, and 6 species of Homoscleromorpha. Two more, freshwater species, Ephydatiafluviatilis and Eunapiuscarteri, were also added as elements of the Greek fauna.
It is worth mentioning that 8 of the species included in the list (Axinyssamichaelis, Coscinodermasporadense, Hemiasterellaaristoteliana, Irciniapaucifilamentosa, Leucandranausicaae, Petrosiapulitzeri, Phorbasposidoni, and Topsentiavaceleti) have been first described from Greek waters. All except one (P.pulitzeri) are considered endemic to this area, since they have not been yet reported elsewhere. A number of species, endemic to the eastern Mediterranean, have been also recorded in Greek waters, such as the deep-sea sponges Syconfaulkneri, Rhizaxinellashikmonae, and Tentoriumlevantinum, which were described from the Levantine, but were also recorded from the Sea of Crete and Sporades Basin by Ilan et al. (2003). Interestingly, most of the aforementioned species were found in dimly lit habitats which can be sponge-dominated (Gerovasileiou and Voultsiadou 2012), such as marine caves, coralligenous beds, and the bathyal zone, highlighting the need for further research to reveal the unknown diversity in these environments.
The list of sponges of Greece compiled for the needs of the present study is the most comprehensive list of Porifera in the Eastern Mediterranean. There is another list presenting 131 sponge species from the Turkish coasts (Topaloğlu and Evcen 2014) and various scattered sources of information on the sponges of the remaining Levantine coasts (see Voultsiadou 2005b). However, a major gap of our knowledge on the sponge species richness from the Greek seas is obvious since practically the entire bibliography on Greek sponges concerns the Aegean Sea, while very few and scattered information is available from the Ionian coasts of Greece (e.g. Schuffner 1877, Laborel 1960). Finally, it should be mentioned that several species reported from the Turkish coasts of the Aegean have not been yet found in Greek waters. Given that both Turkish and Greek coasts are part of the broader ecoregion of the Aegean Archipelago (Spalding et al. 2007), it is reasonable to assume that it is a matter of time before these species are recorded as elements of the Greek fauna as well.
Acknowledgements
This work was supported by the LifeWatchGreece infrastructure (MIS 384676), funded by the Greek Government under the General Secretariat of Research and Technology (GSRT), ESFRI Projects, National Strategic Reference Framework (NSRF). We would like to thank Thanos Dailianis for his constructive comments.
References1937Schwämme1Verlag von Gebrüder BorntraegerBerlin1577-20002016Introduction to the Greek Taxon Information System (GTIS) in LifeWatchGreece: the construction of the Preliminary Checklists of Species of GreeceLifeWatchGreece: Research infrastructure (ESFRI) for biodiversity data and data observatoriesin press2014The other side of rarity: recent habitat expansion and increased abundance of the horny sponge Irciniaretidermata (Demospongiae: Dictyoceratida) in the southeast Aegean81456457010.1080/11250003.2014.9209292014Mediterranean hexactinellid sponges, with the description of a new Sympagella species (Porifera, Hexactinellida)9571353136410.1017/s0025315414001891BurtonM.1963British Museum of Natural HistoryLondon6392011Genetic diversity of the imperilled bath sponge Spongiaofficinalis Linnaeus, 1759 across the Mediterranean Sea: patterns of population differentiation and implications for taxonomy and conservation20183757377210.1111/j.1365-294x.2011.05222.x2009Overview on the Homoscleromorpha sponges diversity in the MediterraneanRAC/SPATunis2012Marine caves of the Mediterranean Sea: a sponge biodiversity reservoir within a biodiversity hotspot77e3987310.1371/journal.pone.00398732015Census of biodiversity in marine caves of the Eastern Mediterranean Sea1624526510.12681/mms.10691971Etude des Réniérides de Méditerranée (Démosponges Haplosclérides)3971822009Growth rate and chemical features of the massive calcium carbonate skeleton of Petrobionamassiliana (Baeriida: Calcaronea: Calcispongiae)90474975410.1017/s00253154099910812003Small bathyal sponge species from east mediterranean revealed by a non-regular soft bottom sampling technique57314516010.1080/00785236.2003.104095112007Taxonomy of some sponges (Porifera: Demospongiae) collected from the Aegean Sea and description of a new species8761527153810.1017/s002531540705206x2012A new species of Halichondriidae, Topsentiavaceleti n. sp. (Halichondrida, Demospongiae, Porifera), collected from coralligenous bottoms of the Aegean Sea331458681996Macrofauna associated with sponge species of different morphology17456958210.1111/j.1439-0485.1996.tb00418.x1960Contribution à l'étude directe des peuplements benthiques sciaphiles sur substrat rocheux en Méditerranée33117173LongoC.PronzatoR.2011CalderiniMilano5651996Petrosiapulitzeri n.sp. (Porifera, Demospongiae) from Mediterranean caves63216917210.1080/112500096093561262000The sponge community of a subtidal area with hydrothermal vents: Milos Island, Aegean Sea51562763510.1006/ecss.2000.06741958Recherches sur les peuplements benthiques de la Méditerranée nord-orientale342132912001Atlas of European freshwater sponges43641983A collection of Mediterranean Demospongiae (Porifera) with, in appendix, a list of the Demospongiae hitherto recorded from the Mediterranean Sea844456211877Beschreibung einiger neuer Kalkschwämme114034332007Marine ecoregions of the world: a bioregionalization of coastal and shelf areas57757310.1641/b5707071904Inaugural DissertationBreslau522014Updated checklist of sponges (Porifera) along the coasts of Turkey3866567610.3906/zoo-1405-791920Spongiaires du Musée de Strasbourg. Monaxonides3811361947Note intorno alla fauna e flora marine dell’isola di Rodi (Mar Egeo)2313191969Eponges de la roche du large et de l’étage bathyal de Méditerranée591452192008A large encrusting clionaid sponge in the Eastern Mediterranean Sea29223724610.1111/j.1439-0485.2007.00218.xWorld Porifera databasehttp://www.marinespecies.org/porifera/2016-01-16T00:00:00+02:002005Demosponge distribution in the eastern Mediterranean: a NW–SE gradient59323725110.1007/s10152-005-0224-82005Sponge diversity in the Aegean Sea: Check list and new information721536410.1080/112500005093566532007Sponges: an historical survey of their knowledge in Greek antiquity8761757176310.1017/s00253154070577732009Reevaluating sponge diversity and distribution in the Mediterranean Sea628111210.1007/s10750-009-9725-92010Sponge epibionts on ecosystem-engineering ascidians: The case of Microcosmussabatieri.86459860610.1016/j.ecss.2009.11.0352011Aegean bath sponges: historical data and current status191345110.1080/10641262.2010.5317941993Contribution to the Knowledge of Keratose Sponges. (Dictyoceratida, Dendroceratida, Verongida: Demospongiae, Porifera) of the Aegean Sea691577210.1002/mmnz.199306901051991Phorbasposidoni n. sp. (Porifera, Poecilosclerida) from the Aegean Sea, with a discussion of the family Anchinoidae.258278361991Hemiasterellaaristoteliana n. sp. (Porifera, Hadromerida) from the Aegean Sea with a discussion of the family Hemiasterellidae.6143491993Suberitidae (Demospongiae, Hadromerida) from the North Aegean Sea4317618610.1080/002229391007705511991Coscinodermasporadense sp.n. from the Aegean Sea with comments on Coscinodermaconfragosum (Porifera, Dictyoceratida)20319519910.1111/j.1463-6409.1991.tb00284.xWorld Register of Marine Specieshttp://marinespecies.org/
Marine sponge species added by the present study (not included in the list given by Voultsiadou 2005a). For each species the publication mentioning its occurrence in the Greek seas is given.