Tag Archives: fish surveys
Opinion: Policymakers in search of sound science need to listen to fishery by Jerry Leeman
Fishermen are gravely concerned that regulators are stealing our futures with baseless cuts to landing quotas. Rep. Jared Golden is taking positive steps to fix this problem. It often happens that government regulators, who lack deep knowledge of what it takes to catch fish in the Gulf of Maine, reach conclusions about the state of our fish stocks that do not match what fishermen are seeing and what we know from being on the water every day. The obvious objection whenever we raise this concern is that “anecdote is not the plural of data.” The doubters ask: Why would an individual fisherman know more than a government agency with a dataset? That’s a fair question. more, >>CLICK TO READ<< 08:02
Live 3D data streaming – new Simrad visualisation SW unveiled in Vigo
Kongsberg Maritime has unveiled an advanced new technology platform at the ICES Working Group on Fisheries Acoustics, Science and Technology (WGFAST) in Vigo today (19th April), which enables live streaming of 3D data generated by scientific multibeam systems. The unique, new Simrad TD50 data visualisation software is currently operational with the Simrad ME70 scientific multibeam echo sounder, with plans to enable 3D data streaming from a wider range of Simrad acoustic systems in the future. Accurate 3D visualisation gives users a better understanding of the marine ecosystem by i.e. enabling precise measurement of schools of fish rather than estimating size and shapes based on models.Video, read the rest here 12:33
For pollock surveys in Alaska, things are looking up
Scientists have been conducting fish surveys in the Shelikof Strait for decades. But in February of this year, scientists moored three sonar devices to the seafloor and pointed them up toward the surface. The devices have been recording the passage of fish above them ever since. Because underwater devices cannot transmit data in real time, the sonar systems have been storing their data internally, leaving scientists in a state of suspense since February. But suspense turned to satisfaction last week when, working in cooperation with local fishermen aboard a 90-foot chartered fishing vessel, scientists retrieved the moorings from the bottom of Shelikof Strait. Read the rest here 17:31
