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Cell biology, microbiology, ecology, biodiversity, species data, evolutionary biology
24,563 datasets
A multicenter study of 313 rectal cancer patients used MRI-derived tumor microenvironment habitats and peritumoral radiomic features to differentiate T1-2 from T3 stages. The research developed a nomogram integrating habitat features, optimal 2mm peritumoral radiomics (PERI2mm), and clinical predictors like age and CEA. The combined model achieved an AUC of 0.881 on an external test cohort of 130 patients.
Carlos Villalobos compiled a database of 5,448 elected positions in Mexico from 2000 to 2025, including federal deputies, senators, governors, and presidents. The dataset records each official's name, gender, party affiliation, state, and term start and end years. It was last updated on April 27, 2026, on the Harvard Dataverse platform.
Geochemical measurements quantify lithium isotope ratios (d7Li) of Paleozoic (541–251 Mya) mudstones. Samples were collected from field locations across Scotland, Wales, England and New Brunswick, Nova Scotia, Canada by the University of Cambridge. The data was collected to understand changes in weathering intensity coeval with the Paleozoic expansion of land plants.
Gi-MAPS is a quantitative engineering framework for pediatric gut microbiome analysis, integrating patented anaerobic sampling, absolute quantification, and AI-driven digital twin simulation. The system validation achieved an AUC > 0.97 for ecological maturity estimation and 89% accuracy for disease-risk classification. It was authored by Xingyu Wang and published in 2026.
Fisheries and Oceans Canada's Coastal Ecosystems Science Division delineates the seasonal presence of Harbour seals in the Bay of Fundy and Port Hawkesbury areas of Nova Scotia. The dataset was created for Area Response Planning under the World Class Tanker Safety System initiative and is available in a version following the National Environmental Emergency Center data model. It was published in June 2018 and is based on a review of science and local knowledge sources as of March 2017.
Fisheries and Oceans Canada provides data estimating the likelihood of Atlantic salmon presence within Area Response Plan regions. The dataset integrates surface trawl survey data from 2001 and 2003 with information from subsequent tagging studies. It includes seasonal and spatial attributes for use in environmental planning.
This dataset investigates seasonal patterns in plankton abundance and community structure across size fractions from 0.2 µm to 5 mm in a deep aquaculture embayment in northeast Newfoundland, Canada. It uses flow cytometry and FlowCam imaging to analyze relationships between size fractions, water column stratification, and proximity to aquaculture leases. The data provides guidance for monitoring aquaculture ecosystem interactions and assessing interannual variability.
Newfoundland and Labrador region data models habitat suitability for the Greenland shark, a long-lived species vulnerable to bycatch. The model uses presence-only bycatch observations from 1983 to 2019 and environmental variables like bathymetry and bottom temperature. It identifies high-suitability areas along the shelf edge and in channels to inform fisheries management.
2007-2012 research identifies ecological and biological significant areas (EBSA) in the Estuary and Gulf of St. Lawrence. The dataset evaluates six food chain groups—primary production, secondary production, meroplankton, benthic invertebrates, demersal fishes, and pelagic fishes—against five criteria: uniqueness, aggregation, fitness consequence, resilience, and naturalness. It was compiled by Fisheries and Oceans Canada from multiple scientific advisory documents.
Fisheries and Oceans Canada provides the Fisheries Act Registry, an online system for regulatory project data. It includes geospatial data and regulatory process information for projects and authorizations. The data is accessible in multiple formats including ESRI REST, XLSX, and CSV.
Fisheries and Oceans Canada provides sediment and faunal data from Simoom Sound, British Columbia, collected between November 2000 and February 2001. The dataset includes measurements of sediment grain size, porosity, organic content, carbon and nitrogen concentrations, trace elements, chlorophyll, and faunal abundance. Data formatting was performed by Meagan Mak for a study on the effects of shrimp trawling and trapping on benthic ecosystems.
Fisheries and Oceans Canada maintains a dataset from passive acoustic and oceanographic sensors deployed in the Tarium Niryutait Marine Protected Area. The data, collected since 2011 with expanded deployments from 2014 onward, supports ecological monitoring of Eastern Beaufort Sea beluga whales and their habitat. It includes time series of water temperature, salinity, depth, and wave conditions from multiple locations within the MPA.
Fishery-independent catch, effort, location, and biological data from multi-species longline surveys targeting nearshore rockfish and groundfish on hard-bottom habitats. The Outside South Hard Bottom Longline survey has been conducted biennially since 2007, covering the southern British Columbia coastline excluding inlets and protected waters. Data is collected via a random depth-stratified design using 2 km by 2 km sampling blocks and size 14/0 circle hooks baited with squid.
Flow cytometry data investigates spatio-temporal variations in bacteria and phytoplankton composition across four bivalve aquaculture embayments. The dataset captures plankton dynamics under varying environmental and aquaculture pressures, including freshwater inputs and nutrient availability. It was published by Fisheries and Oceans Canada in 2024 to analyze aquaculture ecosystem interactions.
1990 to 2009 data from 35 aerial surveys depicts the relative summer density of beluga calves in the St. Lawrence Estuary. The dataset was created by Fisheries and Oceans Canada using kernel density estimation to define and characterize beluga habitat as part of an Ecosystem Research Initiative.
Landings and sightings data for Bluefin tuna from coastal Nova Scotia, queried in January 2016, were used to estimate the species' presence within Area Response Plan pilot zones. The analysis, conducted by the Coastal Oceanography and Ecosystem Research section, accounts for seasonal variation in tuna presence. A version of this dataset was formatted for the National Environmental Emergency Center.
Fisheries and Oceans Canada provides a geospatial dataset on the relative summer density of belugas in the St. Lawrence Estuary. It is derived from 35 aerial surveys conducted between 1990 and 2009, using kernel density estimation to create a smooth, continuous distribution. The data supports ecosystem-based habitat characterization for the St. Lawrence beluga population.
Five distinct seafloor habitat classes—Reef, Glacial Till, Silt, Silt with Bedforms, and Sand with Bedforms—were derived from an unsupervised classification of multibeam bathymetry and backscatter data. The map, created by researchers from Fisheries and Oceans Canada, classifies acoustically separated spatial units using in situ imagery and video validation. It represents a benthoscape classification for German Bank off South West Nova Scotia.
Nova Scotia and New Brunswick waters were surveyed at 111 sites in 2022-2023 using five quantitative PCR assays. The data supports surveillance for key non-indigenous macroalgal species, including Antithamnion sparsum, Bonnemaisonia hamifera, Codium fragile, Dasysiphonia japonica, and Fucus serratus. Assays were developed by the Center for Environmental Genomics Applications and the Aquatic Biotechnology Laboratory.
2021 research presents a seafloor habitat map for the Bay of Fundy, Canada, derived from multibeam bathymetry, backscatter, and oceanographic data. The dataset classifies the benthoscape into 7 distinct habitat classes using an unsupervised classification method validated with in-situ imagery. It was published by Fisheries and Oceans Canada in May 2023.