Bạn đang xem bản rút gọn của tài liệu. Xem và tải ngay bản đầy đủ của tài liệu tại đây (68.32 KB, 2 trang )
aswell.Theworld’scoastlinesaredottedwith
massivepilesofoysterandmusselshellsthat
commemoratefeastsgoingback300,000
years.By40,000yearsagothehuntersof
prehistoricEuropewerecarvingsalmon
imagesandmakingthefirsthookstocatch
riverfish;andnotlongafterward,they
venturedontotheoceaninboats.Fromthe
lateMiddleAgeson,theseagoingnationsof
EuropeandScandinaviaexploitedthe
Atlantic’sabundantstocksofcodandherring,
dryingandsaltingthemintocommoditiesthat
werethefoundationoftheirmodern
prosperity.
Fivehundredyearslater,atthebeginning
ofthe21stcentury,theoceans’productivityis
givingout.Ithasbeenexhaustedbyfeedinga
tenfoldincreaseinthehumanpopulation,and
byconstantadvancesinfishingtechnology
andefficiency.Withthehelpoffasterand
largerships,sonartoseeintothedepths,
miles-longnetsandlines,andthe
mechanizationofallaspectsoftheharvest,
we’vemanagedtofishmanyimportantfood
speciestothevergeofcommercialextinction.
Formerlycommonfish—codandherring,
Atlanticsalmonandswordfishandsole,
sturgeonandshark—areincreasinglyrare.
Others—orangeroughy,Chileanseabass,