Background information and definitions

By jai , 16 August 2023

Revenue - USD value of landings per grid cell using vessel monitoring system (VMS) data linked to California landings receipts registered to Dungeness crab (Samhouri et al., 2021).

Whale distributions - Modeled distributions for blue and humpback whales based on species distribution models (Abrahms et al., 2019; Samhouri et al., 2021).

Risk - The product of fishery effort and blue or humpback whale distribution.

RAMP zones - Fishing zone closures used by the Risk Assessment and Mitigation Program to support management of the Dungeness crab fishery in California.

Fisheries displacement - The % of fisheries effort in closed zones is redistributed proportionally to observed fisheries effort in open pixels (e.g. pixels that had higher observed effort received more redistributed effort, see Samhouri et al. (2021).

Redacted information due to MSA confidentiality restrictions - Pixels with VMS data from fewer than three vessels were removed from the fisheries revenue map in Tab 3.
 

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