Parent Layer: ROUGHTAIL STINGRAY

Name: ROUGHTAIL STINGRAY, variance of mean natural log biomass, Fall 1992-2014

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Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This layer has fall time-series data for bottom fish trawls conducted by the CT DEEP in LIS aboard the R/V John Dempsey, summarized by site and attached to 1x2 nm site grid with the following variables: LISSTRATA (LISTS strata is a combination of bottom type and depth interval, BTMTYPE (M=mud, T=trans, S=sand), DEPTHINT (1=5-9m, 2=9.1-18.2m, 3=18.3-27.3m, 4=27.4+m), Site (site grid number), N (number of tows by site), LnMnCNT (natural log mean count), LnSEcnt (natural log standard error mean count), Tot_Cnt (total count by site), PosTow (value of zero means we towed but did not catch this species), LnMnWt (natural log mean kilograms), LnSEwt (natural log standard error mean kilograms), Tot_KG (total kilograms by site).</SPAN></P><P><SPAN>Full survey methodology can be found in the annual report on the web (http://www.ct.gov/deep/lib/deep/fishing/publications/2014_marine_fisheries_division_long_island_sound_trawl_survey.pdf). Recommended zoom scales 1:10,000 - 1:100,000 (inch:feet).</SPAN></P></DIV></DIV></DIV>

Definition Expression: N/A

Copyright Text: CT Department of Energy and Environmental Protection, Marine Fisheries Division

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