{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Lecture7ZooplanktonI - SOURCE US DOE Office of Science...

Info icon This preview shows pages 1–10. Sign up to view the full content.

View Full Document Right Arrow Icon
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
SOURCE: US DOE – Office of Science
Image of page 2
Zooplankton I Nutrients, temperature and light availability may limit phytoplankton growth rate but…. GRAZING often sets the upper limit of accumulation of phytoplankton biomass (“top down control”) (Phytoplankton blooms can only occur if phytoplankton growth rate exceeds grazing rate)
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 4
Image of page 5

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Sizes of Zooplankton Micro zooplankton: 20-200 μ m Meso zooplankton: ~200 to 2000 μ m Macro plankton (big!) (~ larger than a cm)
Image of page 6
Plagiopyla frontata , a marine ciliated protozoan Strombidium oculatum Strombidium Oligotrich ciliates Examples of microzooplankton: ciliates
Image of page 7

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
More microzooplankton examples: Pteropods, Foraminifera, Radiolarians Foraminifera are a group of amoeboid protists that produce an elaborate shell often made of calcium carbonate. Incorporating their surrounding elements into their shells, foraminifera deposited in sediments are extremely useful in paleoceanography, and are used to reconstruct the ocean conditions and climate of the past.
Image of page 8
Pteropods (Thecosamata; left images), a suborder of pelagic sea-snails, are composed of aragonite, an easily dissolvable form of calcium carbonate. Also known as “sea butterflies”. Some pteropods are “naked” (no shell). Some may be large enough to be classified as “mesozooplankton”.
Image of page 9

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 10
This is the end of the preview. Sign up to access the rest of the document.
  • Fall '10
  • Ms.Richardson
  • Plankton, Foraminifera, pteropods, phytoplankton growth rate, Video Plankton Recorders, limit phytoplankton growth

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern