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Species

The NE multispecies (Groundfish) FMP comprises the following species:

  • Atlantic Cod (COD)
  • Haddock (HAD)
  • Yellowtail Flounder (YTF)
  • Pollock (POL)
  • American Plaice (PLA)
  • Witch Flounder (WTF)
  • White Hake (WHK)
  • Winter Flounder (WIF)
  • Redfish (RED)
  • Atlantic Halibut (HAL)

Non target species

  • Windowpane flounder (WPF)
  • Ocean Pout (OPT)
  • Atlantic Wolffish (WOL)

These GEARCAT(s) associated with groundfish species are:

  • Bottom Trawl
  • Sink Gillnet

** Still need to separate some species (sharks) **

Effort by port

The effort variable is Days at sea (DAS) and is a crude metric. Only integer values and rounded up to the nearest whole day. It is the length of the trip.

After aggregating the top ports based on the decisions found in this section {#sel} and combining all remaining ports into an “other fleet” we can look at the total effort by fleet in units: days at sea

Effort by Port by box

Partition effort by box.

Note: In atlantis effort is entered as as daily effort (days of effort per day). This equates to dividing the annual effort by 365 days.

0.02.55.07.510.00.02.55.07.510.00.02.55.07.510.00.02.55.07.510.01995200020052010201520200.02.55.07.510.0199520002005201020152020199520002005201020152020199520002005201020152020199520002005201020152020199520002005201020152020
PortBOSTONCHATHAMGLOUCESTERMONTAUKNEW BEDFORDOTHERPOINT JUDITHPORTLANDPORTSMOUTHYearEffort (Days per Day)0123456789101112131415161718192022232425272829

Landings by Port

02000400060000200040006000020004000600002000400060001995200020052010201520200200040006000199520002005201020152020199520002005201020152020199520002005201020152020199520002005201020152020199520002005201020152020
PortBOSTONCHATHAMGLOUCESTERMONTAUKNEW BEDFORDOTHERPOINT JUDITHPORTLANDPORTSMOUTHYearLandings (Metric Tons)0123456789101112131415161718192022232425272829

Landings by Species by port

020004000020004000020004000199520002005201020152020020004000199520002005201020152020199520002005201020152020199520002005201020152020
PortBOSTONCHATHAMGLOUCESTERMONTAUKNEW BEDFORDOTHERPOINT JUDITHPORTLANDPORTSMOUTHYearLandings (Metric Tons)CODHADHALOPTPLAPOLREDWHKWIFWOLWPFWTFYTF

Landings by species compare

Compare landings used to force model with landings obtained from CAMS for groundfish fleets.

Note: OPT - ocean pout, WOL - wolfish, WPF - windowpane flounder are not target species.

Landings in Atlantis are expressed as milligrams of Nitrogen mgNs1. Landings data are in metric Tons of wet weight mTyr1. To convert between the two:

mgNs1=606024 mgNday1=365606024 mgNyr1=31536000205.7 mgyr1(wetweight)=31536000205.7109 MTyr1=3.595104 MTyr1

where wetweight:C = 20 and C:N = 5.7 (These are set as parameter values in biology.prm as k_wetdry and X_CN respectively)

Landings of groundfish trips to total

There are some landings of Cod and Haddock that come from other, non groundfish, trips