Sorry for the recent re-posting of the message below consequent to my
premature upload a few minutes ago.
For Indo-West Pacific marine snail immigrants, there is precedent for a
comparable itinerary: SW from the E Atlantic to the New World and thence
northward; see
<https://listserv.uga.edu/scripts/wa-UGA.exe?A2=ind0908D&L=CONCH-L&P=R2152&X=OA18543384ED61B837A&Y=hglee2%40mindspring.com>.
Of course there are myriad hypothetical scenarios, but ocean currents
and veliger vagility certainly are part of the calculus.
Harry
On 3/9/2022 4:57 AM, steve rosenthal wrote:
Hello Paolo et al
At the suggestion of one respondent, I have made a posting to
iNaturalist with photos of two specimens, including one that is almost
fully glossy. The collection locality is Playa Secreto (Secret Beach,
aka Secret Beach spot) in Isabella, NW Puerto Rico.
On 3/9/22, Paolo G. Albano <[log in to unmask]> wrote:
Hi Steve,
Naria turdus was introduced into the Mediterranean Sea, with most
specimens coming from the Gulf of Gabes in Tunisia.
It is thus not entirely surprising that it is now found elsewhere
outside its native range, although the location is unexpected and
indeed
points to shipping as a probable vector.
I would be interested in more information on the current findings
and in
photos, if you can.
Cheers, Paolo
On 08-Mar-22 20:31, Steve Rosenthal wrote:
I'm currently in NW Puerto Rico with a couple of other shell
collectors,
and at one beach we've been finding reasonably fresh dead specimens of
what appears to be Cypraea (now Naria) turdus. They are certainly
not
the two local comparably-sized species (cinerea or acicularis,
which we've
also found dead specimens of to use as comparators; they are not
close in
shape, pattern or color, and especially noteworthy is the weight
per size
of the turdus). I'm less than completely surprised because on at
least
the last couple of auctions on Shellauction.net, a dealer/seller
in Aruba
("ArubaShellClub") has been offering locally collected specimens of
"Naria
turdus gabrieli" with the following comment
"A new introduced species, a really exquisite gem!, taken at night
under
rock by Aruba Shell Club Members and discoverers of this species new
locality, possible introduced as veliger larvae, in ballast water from
visiting oil tankers. Taken December 2021"
It would be interesting to know where else in the Caribbean this shell
might be spreading. Aruba is pretty far from Puerto Rico!
Do any other collectors now of other records?
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--
Dr. Paolo G. ALBANO, Ph.D. (he/him) Senior Scientist, Stazione
Zoologica
Anton Dohrn, National Institute of Marine Biology, Ecology and
Biotechnology, Naples, Italy Research Associate, Department of
Paleontology, University of Vienna, Austria E-mail: [log in to unmask];
Skype: pg.albano Twitter: @pg_albano; Google Scholar
<http://scholar.google.it/citations?user=DZ4zNfQAAAAJ>
NEW Native biodiversity collapse in the Eastern Mediterranean
<https://royalsocietypublishing.org/doi/10.1098/rspb.2020.2469> open
access Full publication list including links to pdfs and journal
webpages here
<https://homepage.univie.ac.at/paolo.albano/publication_list.html>
Lessepsian migration project: Historical ecology of Lessepsian
migration
<http://www.univie.ac.at/lessepsian/index.html> Personal web-site:
http://homepage.univie.ac.at/paolo.albano/
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