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Spot Index of Abundance

Spot
Spot Spot are known to inhabit waters from the Gulf of Maine to Mexico, and can reach a length of 29 centimeters (12 inches).
Spot
Spot Sizes The Juvenile Finfish Trawl Survey catches varying sizes of Spot, depending on the location, season and depth.
Larval spot
Larval Spot Larval Spot enter Chesapeake Bay during the winter and spring, and recruit to they survey gear in March.

Spot young-of-year index of abundance figure. The graph shows Spot young-of-year annual indices of abundance from all sampling stations from 1988 to 2023.

About the data

This species first recruits to the survey gear in March. All sampling stations are used to calculate the index of abundance.

The young-of-year cutoff values are as follows (index months are listed in bold):
  • March: 0-50 mm.
  • April: 0-75 mm.
  • May: 0-100 mm.
  • June: 0-135 mm.
  • July: 0-160 mm.
  • August: 0-180 mm.
  • September: 0-200 mm.
  • October: 0-200 mm.
  • November: 0-200 mm.
  • December: 0-200 mm.
  • January: 0-200 mm.
  • February: 0-200 mm.

Data collected after the transition to a new vessel and net in June 2015 have been adjusted by a species-specific calibration factor.

Spot Excel file (Microsoft Excel download)

For more information on how this species is managed, please visit the ASMFC website.