ChatzispyrouArchontiaGubiliChrysoulaLaiakiMariaMantopoulou-PaloukaDanaiKavadasStefanosFirst record of the marbled ray, Dasyatis marmorata (Elasmobranchii: Dasyatidae), from Greece (central Aegean Sea)Biodivers Data J1342020810.3897/BDJ.8.e51100A39C719A-0311-5D12-B498-3FA2DAB02AE9Dasyatis marmorata(Steindachner, 1892)Materials

Type status: Other material. Occurrence: occurrenceRemarks: collected dead in fishing nets; recordedBy: Stefanos Kavadas; individualCount: 1; sex: male; lifeStage: juvenile; reproductiveCondition: non-reproductive; preparations: whole animal, photographs, DNA extract; associatedSequences: GenBank: MT044303; Taxon: kingdom: Animalia; phylum: Chordata; class: Chondrichthyes; order: Myliobatiformes; family: Dasyatidae; genus: Dasyatis; taxonRank: species; vernacularName: marbled stingray; Location: continent: Europe; waterBody: Aegean Sea; country: Greece; countryCode: GR; municipality: Central Greece; locality: Maliakos Gulf; verbatimLatitude: 38.882326; verbatimLongitude: 22.592301; verbatimCoordinateSystem: decimal degrees; Identification: identificationID: 371208; identificationReferences: "Rays of the world. Last et al. 2016". "Chondrichthyans and Cyclostomata from the North-eastern Atlantic and the Mediterranean. Iglesias 2013".; identificationRemarks: blue blotches on pectoral fins, disc length vs. disc width; Event: samplingProtocol: trammel net; samplingEffort: 27 sampling hours; eventDate: 2019-02-09T09:00+0200; startDayOfYear: 39; endDayOfYear: 40; year: 2019; month: February; day: 9; habitat: muddy bottom; fieldNumber: 1902MLGT/T1H1/CM1; Record Level: type: By-catch entanglement; language: en; rightsHolder: Hellenic Centre for Marine Research; institutionCode: HCMR; basisOfRecord: Dead specimen

Description

The collected specimen was a juvenile male measuring 330 mm in total length, 160 mm in disc length and 188 mm in disc width and weighing 171.8 g (total weight). Additionally, twenty six morphological characters were also recorded (Table 1) following biometric measurements from recent studies (Psomadakis et al. 2008, Smith et al. 2009, Capapé et al. 2015) and the specimen was subsequently dissected. All collected field data and measurements were stored in the IMAS-fish database, a centralised integrated fisheries information system of the Institute of Marine Biological Resources and Inland Waters (Kavadas et al. 2013).

Morphological characters of D. marmorata from Maliakos Gulf, Greece and percentages against disc width (DW), following previously proposed biometric measurements. The total and eviscerated weight of the animal are also included in grams (g).

Characters mm % to DW g
Total length330.00-
Disc length160.0085.11
Disc width188.00100.00
Interorbital distance27.1114.42
Interspiracular distance32.1517.10
Orbit length17.309.20
Spiracle length13.867.37
Preorbital length38.3620.40
Prespiracle length52.1727.75
Pelvic anterior length33.5617.85
Pelvic width21.6911.54
Prenasal length28.7715.30
Preoral length37.3719.88
Internarial length19.1910.21
Nasal curtain length10.095.37
Nasal curtain width20.8511.09
Mouth width20.8611.10
Distance between 1st gill slits37.2619.82
Distance between 5th gill slits24.0012.77
Snout to 1st gill length54.6129.05
Width of tail at cloaca13.257.05
Width of tail at sting origin6.763.60
Snout to cloaca length145.0077.13
Cloaca to tail tip length195.00103.72
Cloaca to sting origin79.6142.35
Pectoral anterior length120.0063.83
Pectoral posterior length115.0061.17
Clapser external length7.714.10
Clasper internal length13.667.27
Total weight171.80
Eviscerated weight151.60
PsomadakisP. N.DalùM.ScaccoU.VacchiM.2008A rare batoid fish Gymnura altavela (Chondrichthyes: Gymnuridae) captured in the Tyrrhenian Sea.Marine Biodiveristy Records1, E610.1017/S1755267206000662SmithW. D.BizzarroJ. J.RichardsV. P.NielsenJ.Marquez -FariasF.ShivjiM. S.2009Morphometric convergence and molecular divergence: the taxonomic status and evolutionary history of Gymnura crebripunctata and Gymnura marmorata in the eastern Pacific OceanJournal of Fish Biology75476178310.1111/j.1095-8649.2009.02300.xCapapéC.AliM.SaadA.AlkusairyH.ReynaudC.2015Atypical Characteristics in the longnosed skate Dipturus oxyrinchus (Linnaeus, 1758) from the coast of Syria (Eastern Mediterranean)Thalassia Salentina37718010.1285/i15910725v37p71KavadasS.DamalasD.GeorgakarakosS.MaraveliasC.TserpesG.PapaconstantinouC.BazigosG.2013IMAS-fish: integrated management system to support the sustainability of Greek fisheries resources. A multidisciplinary web-based database management system: implementation, capabilities, utilization & future prospects for fisheries stakeholderMediterranean Marine Science1410911810.12681/mms.324