Surveys of inshore fish catches, fish diets, and habitat and abiotic factors were carried out in the Embley River Estuary, Gulf of Carpentaria, between 1986 and 1992.

Sampling was carried out in October 1993 and March 1994 to collect fish and juvenile prawns. Fish gut contents were examined. Sampling took place at two sites in the Embley River using gillnets, beach seines, rotenone, and beam trawls.

Surveys of inshore fish catches, fish diets, and habitat and abiotic factors were carried out in the Norman River estuary, Gulf of Carpentaria, between 1991 and 1992.

Juvenile tiger prawns were collected by beam trawl in the Embley River, Gulf of Carpentaria in October 1993, March 1994 and October/November 1994. The following parameters were measured: prawn numbers, carapace length, species, seagrass, biomass, salinity, temperature and depth. Field experiments were carried out using enclosure nets.

This dataset derives from a series of beam trawl tows conducted during several research surveys in coastal areas of the St. Lawrence Estuary, between Portneuf-sur-Mer and Pointe-des-Monts, and between June and October of 2019, 2020, 2021 and 2022. It contains catch data for fish and invertebrates (occurrence and catch weights by species), in trawl tows conducted at depths ranging from 10 to 50 meters. Data were collected in various cruises: • June 28th to July 5th 2019 (NGCC Leim) • September 30th to October 9th 2019 (NGCC Leim) • October 1st to October 10th 2020 (NGCC Leim) • April 22nd to May 5th 2021 (NGCC Perley) • October 15th to October 24th 2021 (NGCC Perley) • June 24th to July 15th 2022 (NGCC LEIM) The beam trawl used to generate this data set consists of a frame (width of 2.8 m, height of 0.8 m) equipped with a 6.5 m long net with 40 mm diamond mesh, which is lined with a net (skirt) of square mesh (5 mm) at the cod-end (length 2 m) and a protective apron (75 mm mesh) on the ventral portion. Three skid chains are linked at the base of the skates. Each station corresponds to a 5 to 10 minutes tow along an isobath at a speed of about 2 knots. At each haul, the trawl catch was placed on a sorting table on the deck and the organisms were sorted and identified at the best possible taxonomic resolution. Most taxa were independently weighed. Some invertebrates taxa were subsampled, counted and weighted in order to estimate their contribution (weight and number) to the total catch. Additionally, the first 30 fish of each species were measured and weighed individually. Taxonomic names were verified on the World Register of Marine Species (WoRMS) to match recognized standards. The WoRMS match has been put in the scientificNameID field in the occurrence file. Data quality control was performed using the R packages obistools and worrms. All sampling locations were plotted on a map to perform a visual check confirming that the latitude and longitude coordinates were within the described sampling area. Data acquired during the research surveys additionally included: 1) occurrence data on epibenthic invertebrates and submerged aquatic vegetation in photo samples from a drop camera system, 2) occurrence data on fish and invertebrate taxa in video samples collected using a baited underwater video system (BUV), 3) substrate classification based on drop camera photo samples, 4) oceanographic measurements of the water column from Seabird 19plus V2 profiling CTD (conductivity, temperature, depth, photosynthetic active radiation, pH, dissolved oxygen), 5) nutrients (NO2, NO3, NH4, PO4, SiO3) and dissolve organic carbon (DOC) concentrations, and 6) current speed and direction from tilt meters. The first two items are available as independent data on the OBIS portal. To obtain data from items 3-6 and/or biological data collected on fish and invertebrate taxa, please contact David Lévesque or Marie-Julie Roux. The research surveys were undertaken by the Department of Fisheries and Oceans Canada as part of the baseline program of the Ocean Protection Plan. This initiative aimed to acquire environmental baseline data contributing to the characterization of important coastal areas and in support of evidence-based assessments and management decision-making for preserving marine ecosystems. Which contribute to the elaboration of conservation objectives based on an ecosystem assessment approach for fishery stock assessment requires the development of sampling methods to maximize the data collection on the ecosystem, while minimizing the impact on organisms and the marine environment. This project aims at characterising the coastal ecosystem of the St. Lawrence Estuary between Portneuf-sur-Mer and Godbout (QC), including the physico-chemistry of water, phytoplankton, zooplankton, submerged vegetation, benthic habitats as well as assemblages of fish and invertebrates. Sampling was performed by combining conventional methods such as CTD profiling,

Surveys of inshore fish catches, fish diets, and habitat and abiotic factors were carried out off the coast of North-west Groote Eylandt, Gulf of Carpentaria, in 1989 and 1990.

Data are abundance and body size (length) of juvenile salmon, forage fish, and other species captured with a lampara net in eelgrass and nearby unvegetated habitat on the Skagit River Delta monthly, April-September, 2008-2010, as well as vegetation status, water depth, temperature, salinity, and clarity for each fish netting event.

This dataset contains juvenile Dungeness crab (Cancer magister) abundance data and associated habitat data from three estuaries in Oregon (Tillamook, Yaquina, and Alsea bays). These data were collected by EPA surveys in 2010-2011. Additionally, this dataset includes areal data on National Wetlands Inventory (NWI) habitat classes within our study areas. This dataset is associated with the following publication: Lewis, N., D. Young, C. Folger, and T. DeWitt. Assessing the Relative Importance of Estuarine Nursery Habitats – a Dungeness Crab (Cancer magister) Case Study. Estuaries and Coasts. Estuarine Research Federation, Port Republic, MD, USA, s12237-020-00821-1, (2020).

This dataset contains juvenile Dungeness crab (Cancer magister) abundance data and associated habitat data from three estuaries in Oregon (Tillamook, Yaquina, and Alsea bays). These data were collected by EPA surveys in 2010-2011. Additionally, this dataset includes areal data on National Wetlands Inventory (NWI) habitat classes within our study areas. This dataset is associated with the following publication: Lewis, N., D. Young, C. Folger, and T. DeWitt. Assessing the Relative Importance of Estuarine Nursery Habitats – a Dungeness Crab (Cancer magister) Case Study. Estuaries and Coasts. Estuarine Research Federation, Port Republic, MD, USA, s12237-020-00821-1, (2020).