Subject: Marine Geospatial Ecology Tools (MGET) help
Text archives
| From: | Jason Roberts <> |
|---|---|
| To: | "" <> |
| Cc: | "" <> |
| Subject: | RE: [mget-help] MGET general question |
| Date: | Mon, 18 May 2015 15:24:14 +0000 |
| Accept-language: | en-US |
| Authentication-results: | spf=none (sender IP is ) ; |
Hi Ernesto,
Thanks for your interest in MGET. Sorry your message to the mget-help list
did not go out right away; the list is moderated so that spam does not
accidentally get sent out.
Regarding your questions:
1. The simulation tracks plankton (e.g. larvae) as they flow over the study
area, via both advection by currents and by diffusion. The code that is
currently in MGET does not implement settlement, meaning when larvae drift
over suitable habitat they are not removed from the simulation, but are
allowed to continue drifting. The output of the simulation is a matrix
listing, for each pair of reefs, the maximum larvae sourced from reef A that
were ever suspended over reef B during the simulation. This is the same
measure that was used in Eric Treml's 2008 paper (it is the same code as that
paper). Since that time Eric and I have implemented some new code that
includes settlement. In this new code, the output is the quantity of larvae
sourced from A that settled at B over the course of the simulation. This code
is what was used in our more recent papers, as well as Mora et al. 2012.
Unfortunately I have not had time to put this code into MGET yet.
(Unfortunately this work keeps getting deferred by higher priority work in my
research agenda...)
2. Yes, the tool can be applied to other marine communities. It is a very
basic tool, though, that does not model much behavior. I advise caution with
more complex organisms, such as those that vertically migrate, those that
exhibit sophisticated homing behavior, etc. If you have any doubts, let me
know and we can have a more detailed discussion offline.
3. In your private email to me you also asked about tutorials and case
studies. We do not have a tutorial ready to be used. But the following paper
is one that used the existing MGET tool:
Crochelet E, Chabanet P, Pothin K, Lagabrielle E, Roberts J, Pennober G,
Lecomte-Finiger R, Petit M (2013) Validation of a fish larvae dispersal model
with otolith data in the Western Indian Ocean and implications for marine
spatial planning in data-poor regions. Ocean and Coastal Management 86: 13-21.
If you have any other questions, feel free to follow up with me.
All the best,
Jason
-----Original Message-----
From:
[mailto:]
Sent: Monday, May 18, 2015 7:30 AM
To:
Subject: [mget-help] MGET general question
Hello,
I am a PhD student from San Sebastian (Spain) working on climate change
impacts on marine communities at a global scale.
1. Which is the final output of this simulation? A given distance or time
matrix between sampling points (reefs in your case) that takes into account
currents ?
2. Could the reef larval connectivity tool be used on other marine
communities larvae i.e. ictioplankton, zooplankton…?
I appreciated very much your help and collaboration,,
Cheers,
Ernesto
Thanks for your interest in MGET. Sorry your message to the mget-help list
did not go out right away; the list is moderated so that spam does not
accidentally get sent out.
Regarding your questions:
1. The simulation tracks plankton (e.g. larvae) as they flow over the study
area, via both advection by currents and by diffusion. The code that is
currently in MGET does not implement settlement, meaning when larvae drift
over suitable habitat they are not removed from the simulation, but are
allowed to continue drifting. The output of the simulation is a matrix
listing, for each pair of reefs, the maximum larvae sourced from reef A that
were ever suspended over reef B during the simulation. This is the same
measure that was used in Eric Treml's 2008 paper (it is the same code as that
paper). Since that time Eric and I have implemented some new code that
includes settlement. In this new code, the output is the quantity of larvae
sourced from A that settled at B over the course of the simulation. This code
is what was used in our more recent papers, as well as Mora et al. 2012.
Unfortunately I have not had time to put this code into MGET yet.
(Unfortunately this work keeps getting deferred by higher priority work in my
research agenda...)
2. Yes, the tool can be applied to other marine communities. It is a very
basic tool, though, that does not model much behavior. I advise caution with
more complex organisms, such as those that vertically migrate, those that
exhibit sophisticated homing behavior, etc. If you have any doubts, let me
know and we can have a more detailed discussion offline.
3. In your private email to me you also asked about tutorials and case
studies. We do not have a tutorial ready to be used. But the following paper
is one that used the existing MGET tool:
Crochelet E, Chabanet P, Pothin K, Lagabrielle E, Roberts J, Pennober G,
Lecomte-Finiger R, Petit M (2013) Validation of a fish larvae dispersal model
with otolith data in the Western Indian Ocean and implications for marine
spatial planning in data-poor regions. Ocean and Coastal Management 86: 13-21.
If you have any other questions, feel free to follow up with me.
All the best,
Jason
-----Original Message-----
From:
[mailto:]
Sent: Monday, May 18, 2015 7:30 AM
To:
Subject: [mget-help] MGET general question
Hello,
I am a PhD student from San Sebastian (Spain) working on climate change
impacts on marine communities at a global scale.
1. Which is the final output of this simulation? A given distance or time
matrix between sampling points (reefs in your case) that takes into account
currents ?
2. Could the reef larval connectivity tool be used on other marine
communities larvae i.e. ictioplankton, zooplankton…?
I appreciated very much your help and collaboration,,
Cheers,
Ernesto
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