AndreaBozzo/ceres-open-data-index huggingface dataset:
Geochemical data on otoliths of chaetodon speculum from New Caledonia

Coral reefs are one of the most diverse ecosystems on Earth. They are currently exposed to increasing levels of anthropogenic perturbations. Several recent reviews point to the lack of good indicators for these perturbations especially to monitor their effects on fish populations or fish assemblages. The SW lagoon of New Caledonia is an ideal location to test indicator species in this context as contrasting sites are present within a small geographical range. This study analysed fish from four sites, one with heavy industrial pollution, another dominated by domestic waste, a third with historic mining activities, and the fourth as a control. The butterfly fish, Chaetodon speculum, was chosen to determine C. speculum’s potential as an indicator species due to its link to coral, its sedentary behaviour and its wide geographical distribution. The size distribution, growth rate, age distribution and whole otolith composition were analysed at each site. Age and mean growth rate were analysed from daily increments of the otoliths. The concentrations of eight elements (Li, Mg, Co, Cu, Rb, Sr, and Ba) were measured by ICP-MS in the otoliths. The sites under anthropogenic impact were distinct from the control site by fish size frequencies, age distributions, and the chemical content of their otoliths. The chemical elements Mg, Co, Cu, and Rb showed differences amongst sites. Fish belonging to the sites furthest from Noume´a could be discriminated in nearly 80% of samples or 60% of the cases when otolith weight or fish age respectively were taken into account. Ni concentrations of the otoliths were also higher in the bays where water concentrations of this element were known to be higher, but these differences were no longer significant once corrected for otolith weight.
Important Note: This submission has been initially submitted to SEA scieNtific Open data Edition (SEANOE) publication service and received the recorded DOI. The metadata elements have been further processed (refined) in EMODnet Ingestion Service in order to conform with the Data Submission Service specifications.
University of Valencia cetacean surveys in the Spanish Mediterranean 2000-2003

Seasonal aerial surveys were conducted in central Spanish Mediterranean waters from 2000 to 2003 to obtain information on the distribution of cetacean species with the aim of delimiting marine protected areas (MPAs) for their conservation.
The study area comprised the waters of the Valencia and Murcia Regions (central Spanish Mediterranean), from the coastline to between 30 to 80 km offshore, with depths ranging from 10 m to 2800 m. Seasonal line transect surveys were conducted from June 2000 to March 2003. Transects followed a systematic saw-tooth pattern that covered the area representatively (Buckland et al. 2001). The fieldwork platform was a high-wing aircraft (“push-pull” Cessna 337) flying at an altitude of 152 m (500 ft) and at a groundspeed of approximately 166 km/h (90 knots). Two observers, positioned on each side of the aircraft, scanned the sea surface and a recorder took note of data reported: species, number of animals, location (obtained from a GPS), time, and environmental conditions, including Beaufort sea state. Environmental conditions were updated whenever changes occurred and GPS provided a continuous record of position (updated every few seconds). Surveys were conducted only in good sighting conditions of Beaufort sea state less than 3.
Soft-bottom macrozoobenthos from the coastal Bulgarian Black Sea collected in 2022 by IBER-BAS, BRIDGE-BS project

Abundance (individual counts) and biomass (g) of macrozoobenthic taxa at soft-bottom stations along the Bulgarian Black Sea coast, collected during a field survey of IBER-BAS in 2022 as part of project BRIDGE-BS (-lt;a href="https://bridgeblacksea.org/"-gt;https://bridgeblacksea.org/-lt;/a-gt;). The dataset also contains organism life stages, sediment type (Folk16), and EUNIS L3 habitat type at the stations.
Samples were collected as part of coastal surveys along the Bulgarian Black Sea cond ucted under BRIDGE-BS project, aimed at gathering spatially referenced data on the biodiversity, community structure and ecological condition of selected dominant soft-bottom benthic ecosystems to complement existing datasets in the area and fill gaps therein. An attempt was made to cover as many different MSFD national habitat types as possible based on previous data and modeling (Emodnet Seabed habitats). Sampling was performed by Van Veen grab (0.05 m2 sampling area) and diver-operated hand corer (10 cm internal diameter, ~20 cm sediment penetration depth). Samples were sieved on a 0.5 mm mesh sieve, and fixed in 10% formaldehyde-seawater solution until analysis. In the laboratory, samples were hand-sorted under a stereomicroscope to the lowest possible taxonomic level (preferably species), and counted. Individual biomass was measured as preserved wet weight on an analytical scale to the nearest 0.0001 g; mollusks were weighed with their shells, and tubicolous polychaetes and her mit crabs were taken out of their tubes/shells before weighing.
Subtidal hyperbenthos monitoring in function of a foreshore suppletion at the Belgian coast, period 2013-2016

What ecological effects does a foreshore suppletion, and a beach suppletion, have on the marine ecosystem in the intertidal and shallow surf zone (
This dataset contain the hyperbenthic data collected in the subtidal area. The hyperbenthos contain the biota collect in the first meter of the water column, and therefore living in close contact with the bottom and are collected by means of a hyperbenthic sledge. The sampling design for the monitoring is following the BACI-design (Before After Control Impact), with a control area with similar habitat characteristics outside the influence of the suppletion activity. There is sampled before the suppletion and in the following two years after suppletion. In this BACI-monitoring, the seasonal aspect is taken into account, by taking samples in spring (March) and autumn (September). In the subtidal area, three depth strata were determined to investigated the influence of the suppletion outside the suppletion area. Stratum a (between low water line and -2m TAW) is the area were the foreshore suppletion is executed. Stratum b and c are taken respectively the depth zones -3m to -4m and -5m to -6m TAW. The amount of sampling locations was determined by the client and contains six tracks for each sampling moment. In each stratum two tracks were taken and the sampling start at the moment of high tide, starting at stratum a. The samples were taken with a hyperbenthic sledge (with increased weight) by dragging it over the bottom for 15 minutes (1000-1500meter). This was done with a constant speed and in line with the currents. The exact distance of the track was determined by calculating the distance between the start- and stop coordinate. The hyperbenthic sledge consist of a metal frame of 100*40cm, with two nets above each other (0.5m in height each). The content of both nets were kept separately. The samples were fixed by an 8% formaldehyde-seawater solution. All biota were determined and counted to species level were possible and biomass is determined by wet weight. The biomass values from the fish species present was not determined. The density and biomass values were standardized to 1000m².
Zooplankton data collected in the Romanian Black Sea waters between 1973 and 1980

The zooplankton dataset contains samples collected during 1973-1980, from different stations, from the Romanian Black Sea waters. Samples were collected from different depths, in different seasons. All samples were collected using the Baskakova net, with an opening of 36 cm diameter. Zooplankton samples were analyzed both from quantitative (density and biomass) and qualitative (list of species) point of view.
Benthic fauna collected in the Arrábida Marine Protected Area (SW Portugal) from 2007 to 2009

The dataset provides a quantitative list of the benthic macrofauna taxa, identified to species level, which was collected from soft sediments in the Prof. Luiz Saldanha Marine Park (Arrábida, SW Portugal) between 2007 and 2009, at depths ranging from 10 to 100 m, aiming at describing community structure and distribution as well as classifying and mapping benthic habitats according to the EUNIS system.
The dataset provides a quantitative list of the benthic macrofauna taxa, identified to species level, which was collected from soft sediments in the Prof. Luiz Saldanha Marine Park (Arrábida, SW Portugal) between 2007 and 2009, aiming at describing community structure and distribution as well as classifying benthic habitats according to the EUNIS system. The data were obtained in the framework of the research project BIOMARES (LIFE06 NAT/P/000192) - Restoration and Management of Biodiversity in the Marine Park Site Arrábida Espichel (PTCON0010). The samples were collected with a Smith-McIntyre grab in georeferenced sites along the Marine Park during three dedicated sampling surveys carried out in July 2007, 2008 and 2009. In each site three grab samples were collected (two for faunal analysis and one for sediment grain size and organic matter analysis)
Aerial sightings of beluga in the Russian Arctic seas 2010

The data on observation of white whales (-lt;i-gt;Delphinapterus leucas-lt;/i-gt;) during the planned sailing of the research scientific ship "Mikhail Somov" (Arkhangelsk–Wrangel Island–Arkhangelsk) from September 6 to December 6 2010 are presented. The results obtained confirm and correct the existing ideas of the distribution of white whales and directions of their migrations in seas of the Russian Arctic.
Original provider: Institute of Ecology and Evolution of Russian Academy of Sciences Dataset credits: Boris Solovyev, Institute of Ecology and Evolution of Russian Academy of Sciences Marine Mammal Council Supplemental information: Aerial surveys were conducted on board a helicopter based at he Scientific-Expedition Ship Mikhail Somov. The tracks represent those of the helicopter. Tracks were provided as summarized shapefiles and are not registered in the OBIS-SEAMAP database. Thus, spatial and temporal exploration of the tracks is not available online. Among them, the tracks on 2010-10-08 are not shown due to the technical issue.
CIRCE Marine mammals off Spain 2001-2012

This dataset was collected during CIRCE's research survey on cetaceans with visual effort between 2001-2012.
This dataset was collected during CIRCE's research survey on cetaceans with visual effort between 2001-2012.Sixty-five marine mammal observations identified as 'NO ID', 'NO ID BIG CETACEAN', 'NO ID SMALL DOLPHIN', 'None' were removed.
Phytoplankton data collected in the Black Sea, Bosporus area during a cruise of the R/V "Mgla", year 1969

Phytoplankton data collected in the Black Sea and Bosporus  area during a cruise of the R/V "Mgla", 1969 year and processed by Lyudmila Georgieva
Samples were taken by 1 L bathometers at standard depths and in the thermocline layer.  The standard sedimentation technique for samples preparation (Usachev, 1926) was used. Samples were preserved by buffered formalin 40% and were settled within 30 days. Then a volume of water was siphoned off and samples were concentrated to 10-20 ml. After thorough mixing the subsamples (0.05 or 0.1 ml) were transferred to the counting chamber. Organisms were counted in two subsamples at ×300-400 magnification.
La tortuga verde en las islas Canarias (aggregated per 1-degree cell)

Original provider: ADS Biodiversidad Dataset credits: Data provider ADS Biodiversidad Originating data center Satellite Tracking and Analysis Tool (STAT) Project partner Asociación para el Desarrollo Sostenible y Conservación de la Biodiversidad (ADS Biodiversidad)Departamento de Biología de la Universidad de Las Palmas de Gran CanariaCentro de Recuperación de Fauna Silvestre del Cabildo de Gran CanariaCentro de Recuperación de Fauna Silvestre La Tahonilla del Cabildo de Tenerife Project sponsor or sponsor description Fundación Biodiversidad del Ministerio de Agricultura, Alimentación y Medio Ambiente Abstract: EspañolEn las aguas de las islas Canarias (este del Atlántico) se pueden observar diferentes especies de tortugas marinas. Una de ellas es la tortuga verde (Chelonia mydas), menos frecuente que la tortuga boba (Caretta caretta), y de la que se dispone de muy poca información.La ONG ADS Biodiversidad desarrolla actualmente un proyecto centrado en la tortuga verde y del que forma parte este programa de marcaje con transmisor. Dicho proyecto pretende determinar el origen de estos ejemplares, conocer su distribución en esta zona, qué tipo de hábitats están usando, y si están ligados o no a áreas con alguna figura de protección como, por ejemplo, la red Natura 2000. Además, se identificarán las principales presiones y amenazas a las que están expuestas estas tortugas.
Los resultados obtenidos se divulgarán entre la población local, siendo para muchos desconocida su presencia en estas aguas, incluso para algunos profesionales como pescadores y buceadores con los que interaccionan directamente.*Título completo del proyecto: La tortuga verde (Chelonia mydas) y la red Natura 2000 en Canarias.
Community analysis and feeding ecology of the ichthyofauna in Gazi Bay sampled in August 1993

Counts of observed fish species and numerical and gravimetrical stomach analysis for 9 fish species at the West and East creek of Gazi Bay during a 2 day sampling in August 1993. The data were digitized by VLIZ from the original report: De Troch, M. (1995). Gemeenschapsanalyse en trofische organisatie van de ichthyofauna in een tropische baai (Gazi Bay, Kenya; Community analyses and trophic organisation of the ichthyofauna in a tropical bay (Gazi Bay, Kenya). MSc Thesis. Universiteit Gent. Mariene Biologie. Instituut voor Dierkunde. Vakgroep Morfologie, Systematiek en Ecologie: Gent. 136 pp.
Dataset on the fish fauna of the seagrass beds in Gazi Bay (Kenya). 8 stations were sampled with a beach seine in the two main creeks of the bay. A total of 3152 fishes was caught, comprising 75 species (40 families). The measured lengths of the fishes caught show that all species were present as juveniles. In a second part of this study the feeding ecology of the dominant species was investigated by stomach analyses (numerical and gravimetrical). The species (and the different length classes) were selected based on their length-frequency distributions and densities.
Phytoplankton study in the Sluice Dock between 1971 and 1973

Phytoplankton and abiotic data for 1971, 1972 and 1973 in the Sluice Dock (Oostende). The data were digitized by VLIZ from the original report: Mommaerts, J.-P. (1978). Systeembenadering van een gesloten marien milieu, met de nadruk op de rol van het fytoplankton. PhD Thesis. VUB: Brussel. 487 [diff. pag.] pp.
Densities, chla and potential production of phytoplankton and corresponding environmental parameters (nitrates, phosphates and ammonium) were examined and measured at 5 stations which were sampled every week between March 1971 and August 1973.
Historical benthos data from the Pre-deltaic Romanian Black Sea Coast in 1960

The dataset comprises data on the substrate type, temperature, salinity and benthos from 58 samples colected in Danube front area in the period March 1960 - July 1960, (Sulina-Portita sector, Romanian Black Sea Coast). The sediment samples were taken with a Van-Veen grab, the sampling size is was - 0.1 m2. The samples have been preserved with 10% buffered formalin, then sieved through a 2 mm, 0.25 mm and 0.10 mm mesh sieve and subsequently stored in 70% ethanol.  The database comprises taxonomic and quantitative data (individuals count, density and wet weight biomass per square meter) for 95 macrobenthic species and 10 supraspecific groups.
The UK Archive for Marine Species and Habitats Data

Accredited through the MEDIN partnership, and core-funded by the Department for the Environment, Food and Rural Affairs (Defra) and the Scottish Government, DASSH provides tools and services for the long-term curation, management and publication of marine species and habitats data, within the UK and internationally.
DASSH is a  flagship initiative of the Marine Biological Association (MBA), and builds on the MBA’s historic role in marine science.  Through partnerships with other UK and European data centres DASSH contributes to data portals including the Atlas of Living Scotland, the UK National Biodiversity Network, EMODnet, EurOBIS and GBIF.
Cetacean coordinated transborder monitoring using ferries as platforms of observation off Tunisia 2013-2014 - Atutax

Within the framework of the ACCOBAMS agreement, a partnership of Italian and Tunisian research bodies is investigating the presence of cetaceans, and the relationship with maritime traffic, within the region comprise among Tunisia-Sicily-Sardinia considered a critical habitat for cetacean species. To be able to systematically investigate the region, especially in high sea areas and all year round, ferries are used as platform of observations. Floating marine litter is experimentally investigated
[2015-10-16] 24 new sightings from 2013-09-28 to 2015-05-17 were added.

The original data provided by ITUCRE include data owned by Atutax and Ketos, which is indicated in the data_owner column. Upon provider's request, the data are split into two datasets based on the ownership and this dataset includes those owned by Atutax.

Twenty unidentified sightings were removed from the original data upon provider's request.

A few sightings observed D.delphis and S.coeruleoalba together. Such sightings are split into two records, one for each species. The notes column mentions this processing.
Sponge faunas of exposed and sheltered reef flats in eastern Indonesia in 1984

List and counts of observed sponge fauna sampled on 4 locations in eastern Indonesia in September and October 1984. The data were digitized by VLIZ from the original report: Ichsan, A. (1989). A comparison of sponge faunas of exposed and sheltered reef flats in eastern Indonesia. MSc Thesis. Universiteit van Amsterdam: Amsterdam. 52 pp.
The available specimens originated from the reef flat of four different localities of Eastern Indonesia: Maisel, east of Sumba, north of Sumbawa, and Bahuluang (south-west of the Salayar). A total of 61 species belonging to 28 Families and grouped into 11 Orders are observed.
SCANS II cetacean sightings from aerial surveys 2005

The European Union (EU) Habitats Directive requires Member States to monitor and maintain at favourable conservation status those species identified to be in need of protection, including all cetaceans. In July 2005 we surveyed the entire EU Atlantic continental shelf to generate robust estimates of abundance for harbour porpoise and other cetacean species. The survey used line transect sampling methods and purpose built data collection equipment designed to minimise bias in estimates of abundance.
Shipboard transects covered 19,725 km in sea conditions 6Beaufort 4 in an area of 1,005,743 km2. Aerial transects covered 15,802 km in good/moderate conditions (6Beaufort 3) in an area of 364,371 km2. Thirteen cetacean species were recorded; abundance was estimated for harbour porpoise (375,358; CV = 0.197), bottlenose dolphin (16,485; CV = 0.422), white-beaked dolphin (16,536; CV = 0.303), short-beaked common dolphin (56,221; CV = 0.234) and minke whale (18,958; CV = 0.347). Abundance in 2005 was similar to that estimated in July 1994 for harbour porpoise, white-beaked dolphin and minke whale in a comparable area. However, model-based density surfaces showed a marked difference in harbour porpoise distribution between 1994 and 2005. Our results allow EU Member States to discharge their responsibilities under the Habitats Directive and inform other international organisations concerning the assessment of conservation status of cetaceans and the impact of bycatch at a large spatial scale. The lack of evidence for a change in harbour porpoise abundance in EU waters as a whole does not exclude the possibility of an impact of bycatch in some areas. Monitoring bycatch and estimation of abundance continue to be essential. Supplemental infomation: Data from three teams aboard different airplanes were merged. Teams are flagged 'A', 'B' and 'C' in 'computer' attribute.
CODA cetacean sightings on primary platform of vessel surveys 2007

The Cetacean Offshore Distribution and Abundance in the European Atlantic (CODA) project estimated the abundance and investigated the habitat use of cetacean species in waters beyond the continental shelf and developed a management framework for determining safe bycatch limits for the common dolphin in this area. The results were intended primarily to inform assessments of the conservation status of all cetacean species and to help assess the impact of bycatch of common dolphin.
Surveys from seven different vessels were merged. Each vessel contained two sightings platforms running concurrently – primary and tracker. This dataset includes sightings from the primary platform. Sightings from the tracker platform are registered in CODA cetacean sightings on tracker platform of vessel surveys 2007.
Rocky shore data from the Giannutri Island Marine Protected Area

These data were part of a study investigating the general statement that Marine Protected Area’s (MPA’s) have an effect on the population and assemblages of benthic organisms in the intertidal zone of rocky shores. The effects were evaluated over a variety of spatial scales
Data are from rocky shore visual estimates at highshore and midshore intertidal level
Sampling location: Giannutri island Marine Protected Area, NW Mediterranean, Tuscany Archipelago, 42°15'.00N, 11°06'.26E
Sampling was repeated in each of 3 Protected and Unprotected Shores (stretches of shore about 30m long, hundreds of m apart) 
2 Sites (Stretches of shore 3-5 m long, tens of m apart) were sampled in each Shore
5 Replicates (visual counts on 20x20 cm quadrates) were sampled in each Site
Expedition of Melita 1892, Molluscs collected on the coasts of Tunisia and Algeria

The current historical paper dated back in 1892, is available online through the Biodiversity Heritage Library at https://www.biodiversitylibrary.org/page/10122164#page/379/mode/1up (pages 363-373). Its original title is -quot;Campagne de la Melita, 1892. MOLLUSQUES RECUEILLIS SUR LES COTES DE LA TUNISIE ET DE L-#039;ALGÉRIE, par Ph. DAUTZENBERG, ancient President de la Société-quot;. This dataset presents dredging sampling events carried out by researchers off the north coast of Tunisia and Algeria, at several depths. The digitization and standardization process are related to the list of stations sampled and the species - belonging to Phyllum: Mollusca (classes: Pelecypoda, Scaphopoda, Gastropoda,) and Brachiopoda - found. This historical paper is digitized through a Citizen Science Workshop organized by the Hellenic Centre in Marine Research in Lecce, on 15 November 2023, using the Zooniverse platform.