ways to clean the beach

1. What species of marine life die due to water pollution in San Diego oceans?
What I'm trying to get through is what species of marine life die due to water pollution in San Diego oceans? because many species are dying of water pollution and trash. Many species die from trash that enters their water. Water pollution even effects feed items that other marine life feed on.
sources:
http://www.mindfully.org/Water/2005/Plankton-Vanishing12jul05.htm
http://www.sciencedaily.com/releases/2006/01/060106001018.htm
http://marinebio.org/Oceans/Conservation/Moyle/ch11.asp
2. What percent of wildlife dies from dog waste at dog beach?
What effects does dog waste do to animals in wetland areas at dog beach. Dogs even scare or attack certain animals from their own homes or even when owner don't pick up after their dogs the dog waste can harm certain plants that are food sources or even homes for animals. The reason dog poop is such a big problem is because some of the dog food has preservatives or chemicals that can be harmful to the wildlife in the wetlands.
sources:
http://www.beachcleanup.org/trash.html