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Subject: Re: Tags for small fish (<2")
From: Chris Stallings <[log in to unmask]>
Reply-To:Scientific forum on fish and fisheries <[log in to unmask]>
Date:Wed, 3 Mar 2010 09:21:59 -0500
Content-Type:text/plain
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Then I probably wouldn't suggest using elastomer.  The colors fade and 
the tag gets stretched into a series of somewhat indistinguishable dots 
as the fish grows (I assume it will grow considerably from 5cm to a 
commercially-harvestable size - whatever the species is).  Cold branding 
could work (it's fast, cheap, easy to see), but those tags will also 
also fade with time.  You could confirm tags retention but that will 
take time.  PIT tags are great but a little pricey and as the previous 
response suggested would require the fishermen (or fish buyers) to scan 
all individuals.  If you don't need to distinguish among individuals, 
some kind of fin ray clipping may work - rays will regenerate, but you 
may be able to tell clipped from non-clipped fish.  Not sure how this 
would work for juveniles through adult stages, though.

On 3/3/2010 9:10 AM, Jacob Kasper wrote:
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>             REPLIES WILL BE SENT TO THE FISH-SCI LIST
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>
> Could be as long as 5-7 years, but certainly no less than 2 years.
>
> On Wed, Mar 3, 2010 at 14:05, Chris Stallings<[log in to unmask]>  wrote:
>
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>>           REPLIES WILL BE SENT TO THE FISH-SCI LIST
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>>
>> What is the anticipated or max time between tagging and capture in the
>> fishery?  That will narrow the options.
>>
>>
>> On 3/3/2010 6:03 AM, Jacob Kasper wrote:
>>
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>>>             REPLIES WILL BE SENT TO THE FISH-SCI LIST
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>>>
>>> I am looking for a tag to use to mark juvenile fish (in the 1-2" range). I
>>> would like to mark these fish with an externally visible tag so that when
>>> they are caught in a commercial fishery the tag is visible to the
>>> harvesters
>>> and they can be returned to us. Can anyone recommend a useful tag for this
>>> purpose?
>>>
>>> Thank you
>>> Jacob
>>>
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>>> <><
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>>>
>>
>> --
>> Christopher D. Stallings, Ph.D.
>> Research Faculty
>> Florida State University Coastal&  Marine Lab
>> St. Teresa, FL 32358, USA
>>
>> phone: 850.697.4103
>> fax: 850.697.3822
>> web: http://www.marinelab.fsu.edu/faculty/stallings.aspx
>>
>>
>> <><   <><   <><   <><   <><   <><   <><   <><   <><   <><   <><   <><   <><
>> For information, send INFO FISH-SCI to [log in to unmask]
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>
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> For information, send INFO FISH-SCI to [log in to unmask]
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>                     The FISH-SCI List Archive
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-- 
Christopher D. Stallings, Ph.D.
Research Faculty
Florida State University Coastal & Marine Lab
St. Teresa, FL 32358, USA

phone: 850.697.4103
fax: 850.697.3822
web: http://www.marinelab.fsu.edu/faculty/stallings.aspx

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