{"id":"W3122145272","doi":"10.1038/s41586-020-03173-9","title":"Half a century of global decline in oceanic sharks and rays","year":2021,"lang":"en","type":"article","venue":"Nature","topic":"Ichthyology and Marine Biology","field":"Environmental Science","cited_by":777,"is_retracted":false,"has_abstract":false,"ca_institutions":"Simon Fraser University","funders":"","keywords":"Overfishing; Defaunation; Extinction (optical mineralogy); Threatened species; Apex predator; Biodiversity; Abundance (ecology); Ecology; Population; Fishing; IUCN Red List; Geography; Fishery; Environmental science; Biology; Predation; Paleontology; Habitat; Demography","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.002894144322444775,"score_gpt":0.2287726023505712,"score_spread":0.2258784580281264,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}