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Londoners love their fish.
倫敦人喜愛魚。
And according to a new study, in the early 13th Century they suddenly started importing it from as far away as the Arctic near Norway.
一項最新研究表明，早在13世紀，他們就突然開始從遠在挪威附近北極圈一帶的地區進口魚類。
The research is in the journal Antiquity.
這一研究已在《古時代》雜志上發表。
About the year 1000, sea fishing increased significantly in northern Europe.
大概是在1000年時，海洋捕魚活動在北歐顯著增加。
To see how that increase influenced urban growth, researchers looked at 95 excavation sites in London.
為了研究海洋捕魚隊城市發展的促進意義，研究人員們調查了倫敦區內95個考古發掘站點。
Which included about 3000 bones from cod fish.
他們發現了大概3000塊的鱈魚骨頭。
Cod are decapitated before being dried for transport.
鱈魚是被斬頭經過干燥處理才進行運輸。
So finding heads meant the fish were local.
所以找到魚頭意味著魚是來自本地。
And the researchers found that as fish heads appear to decrease in the early 1200s, fish tails dramatically increased—a sign of importation.
研究人員們還發現隨著1200年代出土數量魚頭的減少，而魚尾卻顯著增加—這是一個魚類進口貿易的標志。
Examination of the chemical isotopes in the tails matched those for fish in waters far to the north, probably off Norway close to the Arctic, more evidence of import.
對魚尾所含化學同位素標記測試發現這些魚和遠在北部大概挪威外圍靠近北極圈海域的魚十分同源，這就更印證了進口的推測。
The scientists do not know if the rapid switch from local to imported cod happened because local fish weren't as plentiful as the population increased, or if the market became flooded with dried imports from the north.
科學家們不知道是否是因為本地人口數量增加導致了本地魚類供應不足從而引發商業貿易快速從本地產鱈魚轉變為依靠更多的進口鱈魚活動，或者是否是因為市場快速充斥著從北部進口的干燥產品導致了本地鱈魚沒有競爭過進口鱈魚。
But these fish tails tell a story of London becoming a growing economic center, and part of a globalizing fish trade.
但這些魚尾骨講述了一段倫敦發展為經濟中心并占領部分全球漁業貿易的故事。
