The wide-open ocean holds many mysteries. Physics, chemistry, biology, and Earth science concepts and ideas help scientists solve them. Fig 1.1 Earth’s biography: Oceans
The ocean is home to a wide variety of marine ecosystems, some of which you will study in this Lesson. In every ecosystem, whether land or marine, there is interaction between biotic and abiotic factors. Fig. 1.5
World Map Activity – Visit http://go.hrw.com/atlas/norm_htm/oceans.htm
Human Impacts on Marine Ecosystem https://www.nceas.ucsb.edu/globalmarine
Case Study 1 – Whale Falls While you watch, answer the following ?’s in your journal: What do you observe happening? About how many diff types of organisms do you see? Do you this is the result of a natural event of human activity? Why?
(E) March 2009. 85 months since initial scientist visit. February 2002. Initial visit by scientists (~6 months after the whale fall event); (B) December 2004. 34 months since initial scientist visit; (C) November 2005. 45 months since initial scientist visit; (D) December 2007. 70 months since initial scientist visit;
Background specialists Species that remove flesh or soft tissue from carcass Arrive early and remain present throughout entire decomposition Examples Deepwater fish Blob sculpin Snubnose eelpout Hagfishes Sleeper sharks Worms Shrimps Crabs Many scavengers
PhotographBiotic FactorsAbiotic Factors ATrees in background, shrubsWater, ample sand, sunlight, small rocks BGrasses, plants in foreground, trees in background Water, sunlight, small amount of exposed sand along shore