> In the case of 'Erosaria spurca' and 'Pinna nobilis'
> the actual enemy are pollution and human constructions
> close to or in the sea (housing schemes, quays,
> piers...). Evidently, when the population is already
> damaged and one comes collecting... Nevertheless, what
> came first? and, who exerted the real neagative
> influence?

Dear Fali and all,
I think that you are right for most of your statements, but in the case
of Pinna nobilis, collecting by snorkelers and divers has caused this
species to become very rare in many areas. Once I had to leave a
beautiful empty Pinna while diving off Giglio (Italy) with my heart
bleeding, but how can you tell whether a shell in a display was live or
dead collected? Remember that it takes about 30 years for this species
to grow!
Greetings from Germany
Michael
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Michael Hölling
Spanischer Weg 32
44143 Dortmund
Germany

Tel. +49-231-134173
mobile +49-173-3295335
Fax +49-231-134086
email [log in to unmask]

"In omnibus est Limax" (C. Linnaeus)
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