here in new product as national reserve he examines the influence of the rumbold current on plant and animal life divers need to don think with suits to go exploring underwater here and his work is not made easier by the strong current. the upwellings zones in their own boat current bring an abundance of nutrients to the surface in the process supplying food for fish and marine mammals the current is an ideal environment for algae. farm about a bit and for most of the algae growing in this region it has adapted extremely well to the cold environment let me think. that the what should be algae constitute a very. important own enjoyment of the overall biological cycle and that. a lot of organisms feed off that. so where you find a healthy algae population you also find a high diversity of other species. but biodiversity in and along the i'm bored current has made peru's coastal waters one of the world's richest sources of fish. for centuries the country offered hugely lucrative grounds for fishers but more recently they've noticed a significant reduction in their catches and it's the op