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<p>Dear Esther,</p>
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<p>In attachment please find a guideline for the care of biological collections.<br>
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<p>Hope it helps also.<br>
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<p>Best,<br>
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<div><font face="Corbel,sans-serif">---------------------</font></div>
<div><font face="Corbel,sans-serif"><br>
Catarina Teixeira</font></div>
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<div><font face="Corbel,sans-serif" color="#333333"><b>Conservação de Coleções Científicas</b></font><font face="Corbel,sans-serif" color="#333333"> I </font><font face="Corbel,sans-serif" color="gray">Conservation</font><font face="Corbel,sans-serif" color="gray"> of
Scientific Collections</font></div>
<div><font face="Corbel,sans-serif" color="#333333">E-mail: cteixeirasilva@museus.ulisboa.pt</font></div>
<div><font face="Corbel,sans-serif" size="2" color="#333333"><span style="font-size:16px">Tel. +351 210443544 / 919087321</span></font><font face="Corbel,sans-serif" color="#333333"><br>
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<div><font face="Corbel,sans-serif"><b>Museu Nacional de História Natural e da Ciência</b></font></div>
<div><font face="Corbel,sans-serif"><b>Universidade de Lisboa</b></font></div>
<div><font face="Corbel,sans-serif">Rua da Escola Politécnica, 56/58, 1250-102, Lisboa</font></div>
<div><font face="Corbel,sans-serif" color="#333333"><b>www.museus.ulisboa.pt</b></font></div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>De:</b> Nhcoll-l <nhcoll-l-bounces@mailman.yale.edu> em nome de Dirk Neumann <neumann@snsb.de><br>
<b>Enviado:</b> segunda-feira, 17 de dezembro de 2018 10:09<br>
<b>Para:</b> nhcoll-l@mailman.yale.edu<br>
<b>Assunto:</b> Re: [Nhcoll-l] lighting guidelines for fluid preserved specimens in exhibitions</font>
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<div class="moz-cite-prefix">Hi Esther,</div>
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<div class="moz-cite-prefix">to preserve the (living) colouration of specimens usually requires specific preservatives (which usually are not allowed to be used on exhibition anyway); what is still recognisable in preserved specimens is mostly the pigmentation
pattern. Melanophores can be easily damaged by UV radiation, so the question is not so much how much lux would be appropriate (or not), but how high the UV radiation inside the gallery would be. Usually, light levels should be kept as low as possible, a rough
estimate is "150 lux or less". If you have lamps that emit UV light, UV filters should be considered. Also (even faint) sunlight exposure should be avoided as best as possible (but you surely considered this).</div>
<div class="moz-cite-prefix"><br>
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<div class="moz-cite-prefix">Hope this helps,</div>
<div class="moz-cite-prefix">best wishes to Leiden</div>
<div class="moz-cite-prefix">Dirk<br>
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<div class="moz-cite-prefix">Am 17.12.2018 um 11:42 schrieb Esther Dondorp:<br>
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<div dir="ltr">Dear all,
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<div>For our new exhibitions we have some fluid preserved (ethanol) specimens that will be on display for the public. For dry mounted specimens we have lighting guidelines but for fluid preserved specimens it is thought that there are no restrictions because
ethanol does fade the colors anyway. I think that light can decolorate a fluid specimen too so that we need some standards for them aswell. </div>
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<div>I am curious what others use as a light regime for fluid specimens. How long and under what lightstrength (lux) do you exhibit an alchol specimen to make sure it does not fade too much? </div>
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<div><font face="Arial">Many thanks,</font></div>
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<font face="Arial">Esther Dondorp</font>
<div><font face="Arial">collections manager</font></div>
<div><img style="float:left; width:160px; height:82px" src="https://06ecba7b-a-deac235a-s-sites.googlegroups.com/a/naturalis.nl/signatures/home/logo-new.png"></div>
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<sub>071-751 9313 - </sub>
<div><sub><a href="mailto:esther.dondorp@naturalis.nl" target="_blank">esther.dondorp@naturalis.nl</a> - <a href="https://www.naturalis.nl" target="_blank">www.naturalis.nl</a></sub></div>
<div><sub><font size="“1”">Vondellaan 55, 2332 AA Leiden</font></sub></div>
<div><font size="“1”"><sub>Postbus 9517, 2300 RA Leiden</sub></font></div>
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<pre class="moz-quote-pre">_______________________________________________
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_______________________________________________
NHCOLL-L is brought to you by the Society for the Preservation of
Natural History Collections (SPNHC), an international society whose
mission is to improve the preservation, conservation and management of
natural history collections to ensure their continuing value to
society. See <a class="moz-txt-link-freetext" href="http://www.spnhc.org">http://www.spnhc.org</a> for membership information.
Advertising on NH-COLL-L is inappropriate.
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<pre class="moz-signature" cols="72">--
Dirk Neumann
Tel: 089 / 8107-111
Fax: 089 / 8107-300
*new email: neumann(a)snsb.de*
Postanschrift:
Staatliche Naturwissenschaftliche Sammlungen Bayerns
Zoologische Staatssammlung München
Dirk Neumann, Sektion Ichthyologie / DNA-Storage
Münchhausenstr. 21
81247 München
Besuchen Sie unsere Sammlung:
<a class="moz-txt-link-freetext" href="http://www.zsm.mwn.de/sektion/ichthyologie-home/">http://www.zsm.mwn.de/sektion/ichthyologie-home/</a>
---------
Dirk Neumann
Tel: +49-89-8107-111
Fax: +49-89-8107-300
*new email: neumann(a)snsb.de*
postal address:
Bavarian Natural History Collections
The Bavarian State Collection of Zoology
Dirk Neumann, Section Ichthyology / DNA-Storage
Muenchhausenstr. 21
81247 Munich (Germany)
Visit our section at:
<a class="moz-txt-link-freetext" href="http://www.zsm.mwn.de/sektion/ichthyologie-home/">http://www.zsm.mwn.de/sektion/ichthyologie-home/</a>
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