This dataset gathers the names of 86 species of fish as well as their trophic category, abundance and biomass per replicate, sampled by bottom trawling in Posidonia oceanica beds in three main geographic areas (Marseille, Port-Cros Island and Galeria in Corsica) of the Mediterranean French coast. Samples were collected by bottom trawling performed in seagrass meadows between 10 and 40 m depth at different seasons (summer-winter) and period (day-night) at several occasions between 1980 and 2013. This dataset is a witness of the structure, functioning and evolution of fish assemblages in north-western Mediterranean Posidonia oceanica beds.   Image Reference: https://www.seanoe.org/data/00907/101934/illustrations/illustration-236.gif.   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.

This dataset gathers the names of 325 species of fish as well as their trophic category (8), habitat (9), abundance category (6) and minimum abundance (minimum number of individuals recorded per species and replicate), observed in 1990 across Yonge Reef (14°35’S latitude and 145°37’E longitude), an outer-shelf reef located in the northern part of the Great Barrier Reef, Australia. Underwater visual censuses (45 to 60 min) were performed in the nine habitats distinguished from the windward outer side to the leeward lagoon side, between 0.5 and 30 m deep. This dataset is a witness of the specific and trophic structure of fish assemblages across Yonge Reef in 1990 and will serve as a baseline for studies on the impacts of climate change on coral reef fish composition and functioning. Fig : Map of the study reef, Yonge Reef, in outer-shelf position on the northern Great Barrier Reef Image Reference: https://www.seanoe.org/data/00884/99632/illustrations/illustration-216.gif. List of variables Country = Name of country Reef = Name of the reef studied on the Great Barrier Reef Date = Date of observation Zone = Name of the geomophological zone of the reef (Outer slope, Reef flat, Inner slope) Site = Location of observation on the reef Depth Min (m) = Minimum depth of observation (m) Depth Max (m) = Maximum depth of observation (m) Habitat category = Category of habitats (9) Code Habitat = Code of habitat category (AGR = Acropora grandis zone; IPA = Isopora palifera zone; BOZ = Boulder zone; BRF = Back reef flat margin; DLS = Deep lagoon slope; DOS = Deep outer slope; ORF = Outer reef flat; SLS = Shallow lagoon slope; SOS = Shallow outer slope) Code Replicate = Initial numbering of observation replicate Fish family = Latin name of fish family or subfamily (Scaridae was kept as a family for simplicity following FishBase (2024) and not included in Labridae as the tribe Scarini as proposed by Hughes et al. (2023) Fish species = Latin name of genus and species of the fish recorded Trophic category (8) = code of diet category of the fish species (COR = Corallivores; CRU = Crustacivores; HMD = Herbivores, Microvores & Detritivores; IMA = Macroinvertivores; IMI = Microinvertivores; ISE = Sessiles Invertivores; PIS = Piscivores; PLK = Planktivores) (following Parravicini et al., 2020) Code Abundance (6) = Code of abundance category (1 = 1 individual; 2 = 2 - 5 individuals; 3 = 6 - 25 individuals; 4 = 26 - 125 individuals; 5 = 126 - 625 individuals; 6 = 626 - 3250 individuals) Min Abundance = Minimum number of individuals recorded per species in each abundance category References https://www.FishBase.org (2024) Hughes L.C., Nash C.M., White W.T., Westneat M.W. (2023) Concordance and discordance in the phylogenomics of the wrasses and parrotfishes (Teleostei: Labridae). Systematic Biology, 72: 530-543. Parravicini V., Casey J.M., Schiettekatte N.M.D., Brandl S.J., Pozas-Schacre C., Carlot J., Edgar G.J., Graham N.A.J., Harmelin-Vivien M., Kulbicki M., Strona G., Stuart-Smith R.D. (2020) Delineating reef fish trophic guilds with global gut content data synthesis and phylogeny. PloS Biology, 18(12): e3000702. 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.

This dataset contains an inventory of bentho-demersal fauna captured by bottom trawling in Corsica and in the north of Sardinia. There are also counts, measurements of weight, length and sexe determination of individuals. This exploratory bottom trawl survey aimed at evaluating the fishing possibilities in the region. Unfortunatly the exact location of each station could not be recovered. According to the institute 1964 activity report, this survey carried out in November and December 1963 enabled to locate trawlable areas in deep waters off Eastern Corsica, in particular off Bastia, Aleria and Solenzara. It also permitted to locate high yield deep shrimps’ areas off the coasts of Sardinia, in particular the south coast between the capes Spartivento and Sperone, the west coast between the cape Sperone and the gulf d’Oristano and between the capes Mannu and Argenteria and the north-east coast off cape Ferro. 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.

This dataset illustrates a study of the trawlable seabed of the Gulf of Lion, which took place over 11 years between 1965 and 1976. An inventory of the bentho-demersal community was carried out by bottom trawling. Measurements of total weight were taken as well as sex determination. This study was carried out with the research vessel Ichthys. 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.

The Green Edge project was designed to investigate the onset, life and fate of a phytoplankton spring bloom (PSB) in the Arctic Ocean. The lengthening of the ice-free period and the warming of seawater, amongst other factors, have induced major changes in arctic ocean biology over the last decades. Because the PSB is at the base of the Arctic Ocean food chain, it is crucial to understand how changes in the arctic environment will affect it. Green Edge was a large multidisciplinary collaborative project bringing researchers and technicians from 28 different institutions in seven countries, together aiming at understanding these changes and their impacts on the future. The fieldwork for the Green Edge project took place over two years (2015 and 2016) and was carried out from both an ice camp and a research vessel in the Baffin Bay, Canadian arctic. Here, we describe the data set obtained during the research cruise, which took place aboard the Canadian Coast Guard Ship (CCGS) Amundsen in spring 2016. 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.

The CGFS campaign is part of a historical series of fishing surveys that began in 1988 (CGFS Eastern part, conducted on the R/V Gwen Drez) and was extended to cover the entire English Channel regularly from 2018 (on R/V Thalassa). OInly data for the Eastern Channel is presented. For data from the Western Channel please see "WCGFS". For both surveys, the main objective is to collect basic data for estimating the state of resources through direct assessment of stock abundance and distribution, along with biological sampling of the catches. Taking place every year between mid-September and mid-October, it contributes to the European project for the contractualization of basic fishery data collection (DCF). The campaign also allows for sampling and a better understanding of the entire ecosystem, aligning with the implementation of an ecosystem-based approach to fisheries at the community level. The CGFS also provides data for numerous national and international research projects. The collected and validated data are transmitted at the end of each campaign to national databases (SIH, Harmonie, Coriolis) and the European database (DATRAS), enabling their use by different working groups and ensuring public access to this data. Finally, the CGFS data contributes to the baseline assessment of the impact of numerous marine aggregates extraction projects (through a multi-year convention signed between the Ministry of Ecology, Sustainable Development and Spatial Planning, IFREMER, and BRGM) planned or underway in the Eastern English Channel. 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.

This dataset illustrates a study of the trawlable seabed of the Gulf of Lion, which took place over four years between 1957 and 1960. An inventory of the bentho-demersal community was carried out by bottom trawling. Measurements of total weight and length were taken as well as sex determination. This study was carried out with the research vessel Président Théodore Tissier up to 1959 and with the research vessel La Thalassa in 1960. 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.

Since its establishment in 2010, the Mayotte Marine Natural Park has been promoting fishing activities beyond the lagoon, specifically targeting pelagic species to alleviate fishing pressure on reef species. However, despite these efforts, catches of reef fish remain notably high. In 2020, reef carnivores (groupers, snappers…), constituted approximately 35% of the total catches. Ensuring the sustainability of reef fishing necessitates regular assessments of Mayotte's commercial reef fish populations. This study aims to evaluate the current status of these populations and comprehend their dynamics by comparing them with historical data. Scuba diving was employed for the assessment of ichthyological populations and habitat description. In 2023, a total of 96 sites, comprising 1,100 stations (Stationary visual census), were sampled, covering a combined sampled area of 169,400 m2, with an in situ observation duration totalling 110 hours. 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.

This dataset includes all the CHALIST surveys between 1983 and 1992, that is five surveys undertaken in 1983, 1985, 1986, 1987 and 1992. The aim of CHALIST surveys was to evalute the demersal resources of the Gulf of Lion in order to monitor annual variations of the main commercial species in terme of spatial distribution, average weight and size and age compositions and abundance indices. All the target species collected were identified, weighted and counted. Length measurements were also carried out for a number of species. 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.

Alien species from a field observation