Observer Kept and Discard Data Update NEFSC, FMRD

Transcription

1 Observer Kept and Discard Data Update NEFSC, FMRD Presented by Tyler Staples August 29, 218

2 Observer Sampling, quick review Observed Haul: A haul for which weights are collected for all species, both kept and discarded. Discard information includes everything brought up in the gear: vertebrate and invertebrate animals, rocks, plants, and debris A minimum of 5% of hauls from scallop trips should be observed, with watches that capture fishing activity at all time periods throughout the trip. Every attempt is made to observe all hauls on General Category trips Other hauls during watch, length frequencies of shell heights should be obtained at least every other haul, from alternating dredges. Approximately 1 scallops should be measured alternating between kept and discarded dispositions. Discard Ratio Calculation: 1. All observed hauls where catch was present 2. Observed kept scallop meat weight converted to round using 8.33 conversion factor to get kept_round column. If round scallops were kept (rare case gen cat) then round weight used. 3. Observed discard round weights used and in the case of discarded meat (nematodes/grey) 8.33 conversion factor applied. 4. Discard Ratio = Lbs Discarded (Round Weight) / Kept Round U.S. Department of Commerce National Oceanic and Atmospheric Administration NOAA Fisheries Page 2

3 Limited Access Area Fishing_year Num Obs Trips Obs_Tows Lbs_Kept_Obs (Meat Wgt) lbs/tow meat_wgt Kept_Round (conv) Lbs Discarded (Meat Wgt) Disc Round Lbs Discarded (Round Wgt) Discard/lbs/tow/ro und Discard Ratio MAAA MAAA MAAA ET Flex AA Mid-Atlantic Open Mid-Atlantic Open Mid-Atlantic Open Georges Bank Open Georges Bank Open Georges Bank Open Nantucket Lightship AA Nantucket Lightship West AA Nantucket Lightship South AA CA I AA CA II AA CA II AA Limited Access Gen Cat MAAA MAAA MAAA ET Flex AA Mid-Atlantic Open Mid-Atlantic Open Mid-Atlantic Open Georges Bank Open Georges Bank Open Georges Bank Open Nantucket Lightship AA Nantucket Lightship AA Nantucket Lightship West AA Nantucket Lightship South AA 218 CA I AA U.S. Department of Commerce National Oceanic and Atmospheric Administration NOAA Fisheries Page 3

4 .3 Discard to Kept Ratio's Ratio D/K MAAA 216 MAAA 217 MAAA 218 ET Flex 217 MA Open 216 MA Open 217 MA Open 218 GB Open 216 GB Open 217 GB Open 218 NLA AA 216 NLS AA 217 NLS West 218 NLS South 218 CA I 218 CA II 217 LA LAGC

5 Shell Height / Ratio Plots Georges Bank Open Area, Limited Access Observer Collected Lengths Expressed as a Ratio Length (MM) 216_Kept 217_Kept 218_Kept 216_Dis 217_Dis 218_Dis _Kept 217_Kept 218_Kept 216_Dis 217_Dis 218_Dis U.S. Department of Commerce National Oceanic and Atmospheric Administration NOAA Fisheries Page 5

6 Limited Access Georges Bank Observed Shell Heights RATIO OF SCALLOPS LENGTHED 218, D/K Increase from several trips _Kept 217_Kept 218_Kept 216_Dis 217_Dis 218_Dis NO MARKET, TOO SMALL (lbs) POOR QUALITY, GEAR DAMAGE (lbs) RETAINING ONLY CERTAIN SIZE FOR BEST PRICE DUE TO PRICE DIFFERENCE (lbs) POOR QUALITY, GREY MEATS/PARASITES OBSERVERD (lbs) U.S. Department of Commerce National Oceanic and Atmospheric Administration NOAA Fisheries Page 6

7 Nantucket Lightship West Access Area 218 Observed Shell Heights RATIO OF SCALLOPS LENGTHED _GC_DIS 218_GC_KEPT 218_LA_DIS 218_LA_KEPT 218_GC_DIS 218_GC_KEPT 218_LA_DIS 218_LA_KEPT Num_Lengthed U.S. Department of Commerce National Oceanic and Atmospheric Administration NOAA Fisheries Page 7

8 Nantucket Lightship West Access Area Discarding 218 LIMITED ACCESS 574 ROUND REGULATIONS PROHIBIT RETENTION, QUOTA FILLED 7877 ROUND POOR QUALITY, GEAR DAMAGE ROUND NO MARKET, TOO SMALL 4 ROUND NO MARKET, BROUGHT ONBOARD ONLY FOR THE PURPOSE OF OBSERVER SAMPLING LAGC 144 ROUND NO MARKET, TOO SMALL 2334 ROUND REGULATIONS PROHIBIT RETENTION, QUOTA FILLED 68.5 ROUND POOR QUALITY, GEAR DAMAGE U.S. Department of Commerce National Oceanic and Atmospheric Administration NOAA Fisheries Page 8

9 Nantucket Lightship South Access Area _LA_KEPT 218_LA_DIS Num_Lengthed RATIO OF SCALLOPS LENGTHED _LA_KEPT 218_LA_DIS 29 ROUND REGULATIONS PROHIBIT RETENTION, QUOTA FILLED 8596 ROUND POOR QUALITY, GEAR DAMAGE 1248 ROUND NO MARKET, TOO SMALL 252 ROUND NO MARKET, BROUGHT ONBOARD ONLY FOR THE PURPOSE OF OBSERVER SAMPLING U.S. Department of Commerce National Oceanic and Atmospheric Administration NOAA Fisheries Page 9

10 Closed Area I 218 Observed Shell Heights.3 RATIO OF SCALLOPS LENGTHED _LA_KEPT 218_LA_DIS 218_GC_KEPT 218_GC_DIS 218_LA_KEPT 218_LA_DIS 218_GC_KEPT 218_GC_DIS NUM_LENGTHED U.S. Department of Commerce National Oceanic and Atmospheric Administration NOAA Fisheries Page 1

11 CAI Discarding 218 LAGC 533 ROUND NO MARKET, TOO SMALL 46 DRESSED POOR QUALITY, REASON NOT SPECIFIED 22 ROUND POOR QUALITY, REASON NOT SPECIFIED 23 ROUND REGULATIONS PROHIBIT RETENTION, QUOTA FILLED 1 DRESSED POOR QUALITY, GREY MEAT/PARASITES OBSERVED 32 ROUND RETAINING ONLY CERTAIN SIZE BETTER PRICE TRIP QUOTA IN EFFECT 445 ROUND POOR QUALITY, GEAR DAMAGE LIMITED ACCESS 5434 ROUND REGULATIONS PROHIBIT RETENTION, QUOTA FILLED 471 ROUND RETAINING ONLY CERTAIN SIZE BETTER PRICE TRIP QUOTA IN EFFECT 156 ROUND POOR QUALITY, GEAR DAMAGE RUND NO MARKET, TOO SMALL U.S. Department of Commerce National Oceanic and Atmospheric Administration NOAA Fisheries Page 11

12 .35 LIMITED ACCESS MAAA SHELL HEIGHTS RATIO OF SCALLOPS LENGTHED _LA_KEPT 216_LA_DIS 217_LA_KEPT 217_LA_DIS 218_LA_KEPT 218_LA_DIS LAGC MAAA SHELL HEIGHTS.35 RATIO OF SCALLOPS LENGHTED _GC_KEPT 216_GC_DIS 217_GC_KEPT 217_GC_DIS 218_GC_KEPT 218_GC_DIS U.S. Department of Commerce National Oceanic and Atmospheric Administration NOAA Fisheries Page 12

13 MAAA Discarding 218 LIMITED ACCESS 218 LAGC 9225 ROUND REGULATIONS PROHIBIT RETENTION, QUOTA FILLED 166 ROUND POOR QUALITY, GREY MEAT/PARASITES OBSERVED 1182 ROUND RETAINING ONLY CERTAIN SIZE BETTER PRICE TRIP QUOTA IN EFFECT 294 DRESSED POOR QUALITY, GREY MEAT/PARASITES OBSERVED 5699 ROUND RETAINING ONLY CERTAIN SIZE FOR BEST PRICE DUE TO PRICE DIFFERENCE ROUND POOR QUALITY, GEAR DAMAGE ROUND NO MARKET, TOO SMALL 659 ROUND NO MARKET, TOO SMALL 3 ROUND NO MARKET, QUOTA FILLED 217 LIMITED ACCESS 217 LAGC 233 ROUND REGULATIONS PROHIBIT RETENTION, QUOTA FILLED 51 ROUND POOR QUALITY, GREY MEAT/PARASITES OBSERVED 135 DRESSED REGULATIONS PROHIBIT RETENTION, QUOTA FILLED 779 DRESSED POOR QUALITY, GREY MEAT/PARASITES OBSERVED 1428 ROUND DISCARDED, OTHER 15 ROUND NO MARKET, TOO LARGE 5582 ROUND POOR QUALITY, GEAR DAMAGE 1 DRESSED NO MARKET, BUT RETAINED FOR OBSERVER FOR SCIENTIFIC PURPOSES 1311 ROUND POOR QUALITY, REASON NOT SPECIFIED ROUND NO MARKET, TOO SMALL 326 ROUND NO MARKET, TOO SMALL 762 ROUND NO MARKET, QUOTA FILLED U.S. Department of Commerce National Oceanic and Atmospheric Administration NOAA Fisheries Page 13

14 LIMITED ACCESS MID-ATLANTIC OPEN SHELL HEIGHTS.3 RATIO OF SCALLOPS LENGHTED _LA_KEPT 216_LA_DIS 217_LA_KEPT 217_LA_DIS 218_LA_KEPT 218_LA_DIS LAGC MID-ATLANTIC OPEN SHELL HEIGHTS.3 RATIO OF SCALLOPS LENGTHED _GC_KEPT 216_GC_DIS 217_GC_KEPT 217_GC_DIS 218_GC_KEPT 218_GC_DIS U.S. Department of Commerce National Oceanic and Atmospheric Administration NOAA Fisheries Page 14