UCSC OS 130 - Life in the Mud (49 pages)

Previewing pages 1, 2, 3, 23, 24, 25, 26, 47, 48, 49 of 49 page document View the full content.
View Full Document

Life in the Mud



Previewing pages 1, 2, 3, 23, 24, 25, 26, 47, 48, 49 of actual document.

View the full content.
View Full Document
View Full Document

Life in the Mud

40 views


Pages:
49
School:
University of California, Santa Cruz
Course:
Os 130 - Biological Oceanography

Unformatted text preview:

Life in the Mud Benthic productivity versus pelagic productivity The Benthos By definition organisms animals and plants that live on in or attached to the sea floor Includes 98 of all marine species Coral Reefs alone contain 25 of all marine species Community composition determined by benthic composition Most phyla are found in marine sediments and life may have originated at a vent seep Dunn et al Nature 452 745 749 Benthic vs Pelagic Benthic organisms are not adapted to wide ranges in pressure There are very few transparent organisms Generally stay to a smaller spatial area they don t move around as much We classify them in relation to the type of shoreline or bottom structure Deep Sea Gigantism Differences between land and ocean Ocean currents move ocean animals around Small animals in the ocean can be pushed around by currents and may not be able to choose where they go Adult fish and mammals can swim strongly and adult invertebrates cling to the bottom but babies are at the mercy of the currents Standard ecological theory land Animals are found in comfortable environments Marine ecological theory Animals may be found where the currents put them Depends on animal s lifestyle Whether they survive or not is largely dependent on the availability of food or suitable habitat subtrate in that environment Distance from Santa Cruz San Francisco 100km Los Angeles 500 km Salt Lake City 1000 km Benthic Substrates Rocky sandy or muddy intertidal Muddy deposits or hydrothermal deposits in the deep sea Biomass is closely related to surfacewater primary production Benthic Diversity Biomass Benthic diversity is largely controlled by Temperature more in warmer waters Currents this affects the benthic structure Wave Energy infauna vs epifauna Benthic Biomass is largely controlled by Water column primary productivity High Biomass often equals Low Diversity Primary Production Benthic Biomass http www noc soton ac uk chess education edu whale php Whale Falls Deep Sea Oases of



View Full Document

Access the best Study Guides, Lecture Notes and Practice Exams

Loading Unlocking...
Login

Join to view Life in the Mud and access 3M+ class-specific study document.

or
We will never post anything without your permission.
Don't have an account?
Sign Up

Join to view Life in the Mud and access 3M+ class-specific study document.

or

By creating an account you agree to our Privacy Policy and Terms Of Use

Already a member?