Open Oceans: Pelagic Ecosystems III. Comparing the makeup of water and plankton Mean Elemental Ratios of N, and P Organisms: 16.0N / 1P Sea Water: 14.7N.

Slides:



Advertisements
Similar presentations
Biological Productivity. Conditions for Life in the Sea Consider the main biochemical reaction for life in the sea, and on earth in general: 6H 2 O +
Advertisements

MARINE ENVIROMENT Gabriela Rancaño Cortinas 2ºA. AQUATIC ENVIROMENTS WATER CONTAINS EVERYTHING THAT AQUATIC ORGANISM NEED TO LIVE (NUTRIENTS ARE DISSOLVED.
Marine Ecosystems and Food Webs. Carbon Cycle Marine Biota Export Production.
Marine Habitats: Physical Conditions of Marine Life.
Institut universitaire europeen de la mer (iuem) Laboratoire des sciences l’environnement marin (LEMAR) Up or down: Modeling the fates and rates.
© 2011 Pearson Education, Inc. CHAPTER 13 Biological Productivity.
Chapter 3 Section 2 (green book)
Water column structure and zooplankton distribution along Trevor Channel, Barkley Sound Andrew Hamilton.
Photosynthesis (Primary Production) Requirements for photosynthesis: sunlight (and chlorophyll to capture energy) nutrients (nitrogen, phosphorus..), space.
Marine Chemistry and Biological Oceanography 海洋化學與生物海洋.
Energy in Marine Ecosystems: Marine Food Chains Begins with the primary producers They are autotrophs (‘self’-‘feeders’) - Organism capable of making organic.
Figure 54.0 A terrarium, an example of an ecosystem.
Energy in Marine Ecosystems: Marine Food Chains Begins with the primary producers They are autotrophs (‘self’- ‘feeders’) - Organism capable of making.
THE FOSSIL RECORD Ecology and Paleoecology Fundamental Concepts of Ecology and Paleoecology Paleoecologists are particularly interested in the marine (ocean)
The Epipelagic The pelagic realm of the ocean describes the vast, open ocean. –The epipelagic realm is the upper part of this environment. Depths only.
Microbial Processes and Material Flow in Ocean Ecosystems.
Marine Biology Study of living organisms in the ocean LIFE = ? –Ability to capture, store, and transmit energy –Ability to reproduce –Ability to adapt.
Fig Phytoplankton (in this case diatoms) at base of food chain or “food web”.
OPEN OCEAN A. Lowery S. Mitchell. OPEN OCEAN BIOME Earth surface is 70% ocean water. Ocean biomes are very large, and are found all over the planet.
The Carbon Cycle and Primary Productivity Chap. 18: , Chap. 19: I. Introduction A. Questions about elevated CO 2 B. Ecosystem ecology definitions.
Lesson 4: The Biogeochemical Cycle Chemical Oceanography.
Open Oceans: Pelagic Ecosystems II
Marine Ecosystem Structure and Organisms Ecosystem = A biotic community and its interaction with the abiotic environment. Flow of Energy and Cycling of.
IB 362 Lecture 12 Productivity and Food Webs.
Sedimentation n Sediment distributions are controlled by production (silica) and dissolution (carbonate) n Therefore, in order to understand the distribution.
Test #2 Results by Next Week. Biological Productivity.
Biogeochemical Controls and Feedbacks on the Ocean Primary Production.
Review –Seasonal cycle –spatial variation Food web and microbial loop Eutrophic vs. Oligotrophic food webs Biological pump.
Plankton and Their Importance in the Marine Ecosystem Video.
Biological Productivity. Basic Ecology  physical and chemical parameters affecting distribution and abundance  An ecosystem includes both the living.
1 JRC – Ispra, Eutrophication Workshop 14 th -15 th September 2004 A conceptual framework for monitoring and assessment of Eutrophication in different.
Fig Hypothetical Trophic Structure Model
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings Ecosystems Ecosystem = all organisms and nonliving entities that occur.
Ecosystem Organization
Unit 3 Ecosystems Topic 1: Energy flow and matter cycling.
Chapter 13 Final Review. 13.1: Ecologists Study Relationships Ecology is the study of relationships among organisms and their environment. Ecologists.
International Workshop for GODAR WESTPAC Global Ocean Data Archeology and Rescue: Scientific Needs from the Carbon Cycle Study in the Ocean Toshiro Saino.
Puget Sound Oceanography 2009 Course overview. Geology of Puget Sound Started from Pangaea Plate movement, subduction zones, volcanoes and valleys Glaciation.
ECOSYSTEMS OF THE OCEAN
Plankton The basis of life. Objectives Definition Functional groups. Phytoplankton. Zooplankton Bacterioplankton. Ecological factors affecting plankton.
Marine Environments The environment itself Major groups of organisms in ocean Basics of ecosystems.
ECOSYSTEMS AND ENERGY FLOW CH 55 Energy flows through ecosystems while matter cycles through ecosystems.
THE FOOD WEB DO NOW: What do you think is the most important
1 Floodplain Management Session 9 Biology Introduction to Ecological Principles and Ecoregions Prepared by Susan Bolton, PhD, PE.
 Energy Transfer Within Ecosystems APES~Mr. Plowman.
Ocean Water Section 2 Section 2: Life in the Oceans Preview Objectives Ocean Chemistry and Marine Life Ocean Environments Upwelling.
Biogeochemical Controls and Feedbacks on the Ocean Primary Production
ECOSYSTEMS. Ecosystems Ecosystem = all organisms and nonliving entities that occur and interact in a particular area at the same time – Includes abiotic.
Chapter 15. Salinity Chemical weathering on land creates chemicals picked up by freshwater and delivered to the ocean Mainly sodium chloride Chemicals.
V.C.E. Biology Unit 2 Movement of energy and matter in ecosystems.
Chapter 36 & 37 POGIL Review Population Growth Population Distribution
Plankton – The Floaters
Food web and microbial loop Eutrophic vs. Oligotrophic food webs
Food web and microbial loop Eutrophic vs. Oligotrophic food webs
The Biological Pump The biological pump is the process by which CO2 fixed in photosynthesis is transferred to the ocean interior resulting in a temporary.
Plankton Ecology: Primary production, Phytoplankton and Zooplankton
OCEAN WATER AND OCEAN LIFE
Life in the Ocean.
Energy flow in ecosystems
15.2 – The Diversity of Ocean Life
Chapter 46 Opener.
ECOSYSTEMS OF THE OCEAN
Ecosystems and the Biosphere
Ocean Water & Life.
Food web and microbial loop Eutrophic vs. Oligotrophic food webs
Temperate grasslands.
The Biological Pump The biological pump is the process by which CO2 fixed in photosynthesis is transferred to the ocean interior resulting in a temporary.
Botany 4 Lecture #36 Ecosystems
OCEAN WATER & OCEAN LIFE
Phytoplankton in the Stratified Ocean: Who’s where and why?
Presentation transcript:

Open Oceans: Pelagic Ecosystems III

Comparing the makeup of water and plankton Mean Elemental Ratios of N, and P Organisms: 16.0N / 1P Sea Water: 14.7N / 1P On average, seawater lacks sufficient organic N to take advantage of the available phosphorus

Limited water mixing further limits nutrient availability

Testing models: measuring plankton in open oceans Techniques for studying plankton consumersTechniques Plankton levels may be dropping (NASA study)

Changes in Productivity

From productivity to food webs: A size-based pelagic food web

Grazing pressure

Limits & Flows of NPP

Marine “Snow” krill

A spatially realistic pelagic food web

What are links among trophic levels in pelagic systems?

Large phytoplankton vary with depth

Nutrient distribution with depth

Distribution of food web biomass

The global nitrogen cycle

Influences on biologically useful Nitrogen

Diatom mats can migrate vertically

Consequences of active transport of NO 3

Links to oceanic nekton

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2024 SlidePlayer.com Inc. All rights reserved.