Aldo, what are ENSO and NAO?

-Sean


On Fri, 24 Aug 2001 06:02:33 +0000, Aldo Solari [APS] wrote:

>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.


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