藻类   海带</SPAN> <img src="http://a32.photo.store.qq.com/http_imgload.cgi?/rurl4_s=003740019695fd4e32f2102e5b20b8347f8e66a7d33c779de6cca9df7b8f1695fac2a54fba7487777797920ad2eafe711c89624f43d3ad3b7a5412ec7ba2273539c97f68476110fafc1106568f7d4c4175badf3f&a=32&b=28"><img src="http://a32.photo.store.qq.com/http_imgload.cgi?/rurl4_s=003740019695fd4e32f2102e5b20b8347f8e66a7d33c779de6cca9df7b8f1695fac2a54fba7487777797920ad2eafe711c89624f43d3ad3b7a5412ec7ba2273539c97f68476110fafc1106568f7d4c4175badf3f&a=32&b=28"></SPAN> 属大型冷水性经济褐藻。</SPAN>50</SPAN>年代，海带人工养殖试验成功，产量大幅度提高。威海是全国海带主产区，产量占全国总产量的</SPAN>70%</SPAN>以上。海带的营养价值很高，含有蛋白质、糖、维生素、碘、甘露以及钙、铁、脂肪等。它是含碘量最高的食品，因而也是防治甲状腺肿大 阅读全文>>