After digging around I have found some startling information. A study made in 2003 found that the whales affected a massive food chain. When whales numbers started to be depleted the killer whales/orcas that fed on them had to find new sources off protein. the when to seals and sealions first. When the sealions started to lose numbers, the sea urchins, that sea lions fed on started to consume kelp beds in massive quantities, and the kelp beds provide a home for many species. To give some numbers as of 2003 it was shown that sealion populations had gone down 80% in a period of thirty years.
Resouces
http://www.buzzle.com/
No comments:
Post a Comment