Ladder
Human - Other
Related Symbols
Fish ladder
Illustration of fish ladder
aquaculture, fishing, industry, fishery, fisheries, fish, ladder, passage, migration, diadromous, catadromous, anadromous, streams rivers, channel, fishway, fish, pass, fish, steps, dams, locks, management, restoration
Fish ladder
Human Intelligence Tasks
HIT, task a Requester submits to Amazon Mechanical Turk for Workers to perform
