{"vid":"106287","uid":"0","title":"ECOMMAS Proportion Dolphin Detection-Positive Days (2013-2016 time aware content)","log":"Updated by FeedsNodeProcessor","status":"1","comment":"0","promote":"0","sticky":"0","ds_switch":"","nid":"15079","type":"nmpilayer","language":"und","created":"1508231582","changed":"1571757427","tnid":"0","translate":"0","revision_timestamp":"1571757427","revision_uid":"21","body":{"und":[{"value":"
ECOMMAS is a long-term, on-going study into how underwater noise generated by offshore industry impacts the distribution of dolphins and porpoises in the Scottish North Sea.
\r\nAcoustic recorders (C-PODs and SM2Ms) are deployed at 30 sites across 10 locations along the east coast. They record underwater noise and count echolocation clicks to measure dolphin and porpoise presence and absence. They are deployed in the spring and are recovered after ~ 4 months. In 2015 and 2016, a second deployment was issued in July/August.
ECOMMAS is a long-term, on-going study into how underwater noise generated by offshore industry impacts the distribution of dolphins and porpoises in the Scottish North Sea.\u00a0
\nAcoustic recorders (C-PODs and SM2Ms) are deployed at 30 sites across 10 locations along the east coast.\u00a0 They record underwater noise and count echolocation clicks to measure dolphin and porpoise presence and absence.\u00a0 They are deployed in the spring and are recovered after ~ 4 months.\u00a0 In 2015 and 2016, a second deployment was issued in July/August.
Data is presented as detection-positive days (DPD) and detection-positive hours (DPH) for both species.
\nDPD = The detection of echolocation clicks per day
\n(1 = Detection-positive, 0 = Detection-negative)
DPH = The number of hours echolocation clicks are detected per day
\nNall = Total number of clicks detected per day
\nNdays = Total number of days recorded
\nPorpDPH_median = Median porpoise detection-positive hours for each site
\nDolDPH_median = Median dolphin detection-positive hours for each site
\nProportion_PorpDPD = Proportion of porpoise detection-positive days (out of total days recorded, Ndays)
\nProportion_DolDPD = Proportion of dolphin detection-positive days (out of total days recorded, Ndays)
\nData has been prepared as ArcGIS maps showing median DPH and proportion of DPD for both species across all 30 sites.\u00a0 It has also been converted to be viewed on the NMPi, and for direct download as a spread sheet (.csv)
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