**This blog entry orginally appeared on the website oceanspaces.org.**/p>

Recent research with my collaborators Ana Pitchon and Doreen Hansen empirically identfies attributes related to diversification and resilience, including multi-fishery participation, that distinguish commercial fishers who sustain participation after regulatory events that attenuate fishing opportunities, from those who leave. 

The attributes of (i) greater revenue diversification from multi-fishery participation, (ii) lower inter-annual income variation, and (iii) higher annual gross fishing income, are hypothesized to distinguish stayers from those who leave commercial fishing after a regulatory event.

We used a regulatory event study approach to longitudinally track fishers before and after regulatory events in four California fisheries —  Dungeness crab (Cancer magister), spot prawn (Pandalus platyceros), (California) sheephead (Semicossyphus pulcher), and (California) spiny lobster (Panulirus interruptus).

We find consistent and (in many but not all cases) significant associations as hypothesized between these economic attributes of commercial fishermen and their status as a stayer or a leaver, with inter-annual fishing income stability being the most consistently significant.