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Great Whites are protected in Australia now, I have only seen Black Tip Reef Sharks under water! Jeff the Darwinian. ----- Original Message ----- From: "Aldo Solari [APS]" <aldo.solari@ho*.se*> To: <techdiver@aquanaut.com> Sent: Friday, August 24, 2001 3:32 PM Subject: Re[2]: Media blames divers for shark attacks > I agree. Feeding of animals by divers is extremely localized. > There are around 70-80 yearly shark attacks on humans, worldwide > (mostly in Australia). Some believe attack rate is increasing. > This might be due mechanisms which operate in a immensely wider > spatial scales. For instance, the biogeographic boundaries of > species distributions may be changing due (a) global warming > which induces changes in (a1) current patters, (a2) ice dynamics, > (a3) recruitment in prey populations, (a4) migration patters, > (a5) pace of local extinctions. Also, other natural phenomena > which operate in wide spatio-temporal scales such as the ENSO, > NAO and similar are assumed to affect the dynamics of fish > population, behavioural responses, etc. Industrial fisheries are > a very serious matter too: prey populations are overfished by man > and large predators such as seals, sharks, etc. extend their > "home range" and wander around desperately for something to eat. > > If you are using technical black, dont get surprised if you fit > the "search image" of a shark for a seal ... > > Cheers, > > ---- > aldo.solari@ho*.se* (fisheries biologist) > Home page, www.ccbb.ulpgc.es/fish-ecology/solaris > ---- > > wentland@no*.ed* > > gw> To try to associate the current shark attacks with the small > gw> scale shark feeding dives going on is ridiculous. > > > -- > Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. > Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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