doi:10.15470/xktjni 8c6bb163-3308-4430-9d5f-c5a4ec78d188 https://ipt.gbif.es/resource?r=semprucci_nematode Free-living nematode species in the transitional environment of Lake Varano (Southern Italy) Federica Semprucci Dipartimento di Scienze della Terra, della Vita e dell'Ambiente (DiSTeVA), Università di Urbino researcher
loc. Crocicchia Urbino 61029 IT
federica.semprucci@uniurb.it
Maria Balsamo Dipartimento di Scienze della Terra, della Vita e dell'Ambiente (DiSTeVA), Università di Urbino researcher
loc. Crocicchia Urbino 61029
Francesc Uribe Natural History Museum of Barcelona curator
P. Picasso, s/n Barcelona Barcelona 08003 ES
furibe@bcn.cat http://museuciencies.cat/en/ 0000-0002-0832-6561
2018-11-30 eng This study documents for the first time the taxonomic composition of the nematode community and the number of free-living nematode species in the Lake Varano, Southern Adriatic Sea, Italy. The nematode community was mainly composed of species typical of fine sediments that usually prevail in transitional environments (TEs). Occurrence GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml Specimen GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License. Lake Varano is a coastal lagoon located on the northern side of the Gargano National Park (Southern Adriatic Sea). It comprises an area of about 65 km2 and its water depth is about 4 m. 15.684 15.804 41.91 41.845 2012-03-22 2012-03-22 phylum Nematoda genus Anoplostoma genus Oncholaimus genus Oncholaimellus genus Oxystomina genus Chromadora genus Chromadorella genus Chromadorina genus Chromadorita genus Neochromadora genus Ptycholaimellus genus Spilophorella genus Cyatholaimus genus Paracanthonchus genus Paracyatholaimus genus Synonchiella genus Desmodora genus Molgolaimus genus Aponema torosa genus Microlaimus genus Axonolaimus genus Odontophora genus Southerniella genus Paracomesoma genus Sabatieria genus Metalinhomoeus genus Paralinhomoeus genus Terschellingia genus Thalassomonhystera genus Sphaerolaimus genus Daptonema genus Paramonhystera genus Theristus genus Steineria genus Diodontolaimus genus Procamacolaimus genus Leptolaimus Transitional environments (TEs) are aquatic systems characterized by large fluctuations of physicochemical and geochemical variables, which may greatly affect the benthos. In particular, Adriatic Sea coast hosts a large amount of TEs, which range from the largest and most studied Lagoon of Venice, to wetlands, estuaries, embayments and ponds. All these habitats have been modified to meet human requirements for millennia and are currently under severe stress due to both anthropogenic activities and climate changes. Of the 55 species identified in the present study, 20 are new records for the Italian coasts, 3 are new records for the Adriatic basin and 40 are reported for the first time for the Southern Adriatic sector. These data greatly increase the faunistic information available on the distribution of the marine Nematoda along the Italian coasts, and especially in the TE systems that are still poorly known environments. notPlanned Francesc Uribe Natural History Museum of Barcelona curator
P. Picasso, s/n Barcelona Barcelona 08003 ES
furibe@bcn.cat http://museuciencies.cat/en/ 0000-0002-0832-6561
Sediment samples were treated with a 7% MgCl2 aqueous solution to narcotize the fauna, fixed in a 4% formaldehyde solution in buffered sea-water, and stained with Rose Bengal. In the laboratory, the samples were rinsed with a gentle jet of fresh water through a 0.5mm sieve to remove the macrofaunal components. The residual sediment was then decanted, sieved 10 times through a 42μm mesh and centrifuged three times with Ludox HS30 (specific density 1.18) (Pfannkuche & Thiel, 1988). One hundred nematodes were randomly picked from each sample and mounted on permanent slides for taxonomic study (Seinhorst, 1959). The specimens were observed under Nomarski Differential Interference Contrast illumination (Optiphot-2 Nikon, 100x oil immersion objective) and identified by means of the NeMys online identification key (Vanaverbeke et al. 2005). Sediment samples from 21 stations were collected on 22nd March 2012 Samples were collected using a modified model of Van Veen Grab
2015-11-09T09:26:15.487+01:00 dataset Semprucci F, Balsamo M (2015): Free-living nematode species in the transitional environment of Lake Varano (Southern Italy). v1.3. Museu de Ciències Naturals de Barcelona. Dataset/Occurrence. https://doi.org/10.15470/xktjni Semprucci,F.& Balsamo,M. (2015). Checklist of free-living nematode species in the transitional environment of Lake Varano (Southern Italy). Arxius de Miscel·lània Zoològica, 13: 32-46. http://ipt.gbif.es/logo.do?r=semprucci_nematode Free-living nematode species in the transitional environment of Lake Varano microscopicPreparation permanent slides 284 284 8c6bb163-3308-4430-9d5f-c5a4ec78d188/v1.3.xml