Re: [MORPHMET] Photos vs scan

[Marta Rufino]

Hi Neha,

Donax are great :)
In my personal experience with bivalves, is that it is better to scan.
In any case, scan or camera, the machine should be calibrated to check on
distortions.
I find that the scanners are cheaper and have less distorsion, no issue
with scale, etc. thus I prefer it for marine invertebrates.
With fish, however it is more complicated with a scanner, thus we use a
camera.

I hope this helps,

Cheers,
M.

2018-03-16 9:51 GMT+01:00 Neha Sharma :

> Dear All,
> Greetings! I am going to start a project which deals with studying
> morphological variability between bivalves belonging to Donacidae and
> Mactridae. The morphological variability would mainly focus on shell shape,
> internal structures, palial sinus, etc. I already have shortlisted the
> species I am going to use, but I am confused as to which is a better method
> for studying the variability- using photographs or scans of the specimens.
> The approach would be quite traditional- assigning landmark points, and
> further analysis, etc. All kinds of suggestions are welcome. Thanks!
>
> --
> MORPHMET may be accessed via its webpage at http://www.morphometrics.org
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>



-- 
*Marta M. Rufino* (Postdoctoral Researcher)

***IFREMER* - Centre
Atlantique (French Research Institute for Exploitation of the Sea)
Département EMH (Ecologie et Modèles pour l'Halieutique)
Rue de l'Ile d'Yeu - BP 21105
44311 NANTES cedex 3 - FRANCE
Tel.(33) (0)2 40374167

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Re: [MORPHMET] Photos vs scan

[Neha Sharma]

Thanks a lot!

On Wed, 28 Mar 2018, 02:24 Marta Rufino,  wrote:

> Hi Neha,
>
> Donax are great :)
> In my personal experience with bivalves, is that it is better to scan.
> In any case, scan or camera, the machine should be calibrated to check on
> distortions.
> I find that the scanners are cheaper and have less distorsion, no issue
> with scale, etc. thus I prefer it for marine invertebrates.
> With fish, however it is more complicated with a scanner, thus we use a
> camera.
>
> I hope this helps,
>
> Cheers,
> M.
>
> 2018-03-16 9:51 GMT+01:00 Neha Sharma :
>
>> Dear All,
>> Greetings! I am going to start a project which deals with
>> studying morphological variability between bivalves belonging to Donacidae
>> and Mactridae. The morphological variability would mainly focus on shell
>> shape, internal structures, palial sinus, etc. I already have shortlisted
>> the species I am going to use, but I am confused as to which is a better
>> method for studying the variability- using photographs or scans of the
>> specimens. The approach would be quite traditional- assigning landmark
>> points, and further analysis, etc. All kinds of suggestions are welcome.
>> Thanks!
>>
>> --
>> MORPHMET may be accessed via its webpage at http://www.morphometrics.org
>> ---
>> You received this message because you are subscribed to the Google Groups
>> "MORPHMET" group.
>> To unsubscribe from this group and stop receiving emails from it, send an
>> email to morphmet+unsubscr...@morphometrics.org.
>>
>
>
>
> --
> *Marta M. Rufino* (Postdoctoral Researcher)
>
> ***IFREMER* - Centre
> Atlantique (French Research Institute for Exploitation of the Sea)
> Département EMH (Ecologie et Modèles pour l'Halieutique)
> Rue de l'Ile d'Yeu - BP 21105
> 44311 NANTES cedex 3 - FRANCE
> Tel.(33) (0)2 40374167
>
>

-- 
MORPHMET may be accessed via its webpage at http://www.morphometrics.org
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[MORPHMET] Photos vs scan

[Neha Sharma]

Dear All,
Greetings! I am going to start a project which deals with studying 
morphological variability between bivalves belonging to Donacidae and 
Mactridae. The morphological variability would mainly focus on shell shape, 
internal structures, palial sinus, etc. I already have shortlisted the 
species I am going to use, but I am confused as to which is a better method 
for studying the variability- using photographs or scans of the specimens. 
The approach would be quite traditional- assigning landmark points, and 
further analysis, etc. All kinds of suggestions are welcome. Thanks!

-- 
MORPHMET may be accessed via its webpage at http://www.morphometrics.org
--- 
You received this message because you are subscribed to the Google Groups 
"MORPHMET" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to morphmet+unsubscr...@morphometrics.org.