search

flr / FLBEIA

Bio-Economic Impact Assessment of Management strategies using FLR
11 stars 13 forks source link

Implementing landing obligation under SMFB effort model #18

Open marchtaylor opened 7 years ago

marchtaylor commented 7 years ago

I'm pleased to see that the new version of FLBEIA allows for the definition of a landing obligation (LO) within the fleet.ctrl object when the effort model if 'SMFB'. Until now, I have been adjusting the slots of landings.sel and discards.sel (and adjusting landings.wt) in the fleets object for projection years that fall under LO. I have a couple questions regarding its implementation:

  1. Can LO only be applied at the fleet level? In the North Sea, we have LO implemented at the stock level. Thus, I am unsure if I am able to use the argument as it is presently implemented.
  2. I assume that if there is a switch between a quota based on landings to one based on LO, then the restriction vector would also need to be changed from "landings" to "catch" for those years under LO - or does this happen automatically when LandObl = TRUE?

Thanks for your help, Marc

dorleta commented 7 years ago

  1. Can LO only be applied at the fleet level? In the North Sea, we have LO implemented at the stock level. Thus, I am unsure if I am able to use the argument as it is presently implemented. Yes, it is implemented at fleet level, I know what you mean, and it is handicap in this case but in principle we are not going to implement it at stock level. I think that, by 2019, LO will be applied to all the stocks under TAC and quota system, so we will need to find shortcuts imeanwhile…

  2. I assume that if there is a switch between a quota based on landings to one based on LO, then the restriction vector would also need to be changed from "landings" to "catch" for those years under LO - or does this happen automatically when LandObl = TRUE? It does not happen automatically, so yes, it needs to be changed manually.

Dorleta

De: Marc Taylor [mailto:notifications@github.com] Enviado el: jueves, 17 de agosto de 2017 11:28 Para: flr/FLBEIA FLBEIA@noreply.github.com CC: Subscribed subscribed@noreply.github.com Asunto: [flr/FLBEIA] Implementing landing obligation under SMFB effort model (#18)

I'm pleased to see that the new version of FLBEIA allows for the definition of a landing obligation (LO) within the fleet.ctrl object when the effort model if 'SMFB'. Until now, I have been adjusting the slots of landings.sel and discards.sel (and adjusting landings.wt) in the fleets object for projection years that fall under LO. I have a couple questions regarding its implementation:

  1. Can LO only be applied at the fleet level? In the North Sea, we have LO implemented at the stock level. Thus, I am unsure if I am able to use the argument as it is presently implemented.
  2. I assume that if there is a switch between a quota based on landings to one based on LO, then the restriction vector would also need to be changed from "landings" to "catch" for those years under LO - or does this happen automatically when LandObl = TRUE?

Thanks for your help, Marc

— You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHubhttps://github.com/flr/FLBEIA/issues/18, or mute the threadhttps://github.com/notifications/unsubscribe-auth/AEz9MkmfBkm_M-WI6MbOiGoQwoPXnQ8Jks5sZAe4gaJpZM4O6AM7.