Presentation is loading. Please wait.

Presentation is loading. Please wait.

Mesozooplankton component General objective: Quantitative assessment of its biomass and production and its impacts on phytoplankton stocks and vertical.

Published byArabella Carr Modified over 8 years ago

Similar presentations

Presentation on theme: "Mesozooplankton component General objective: Quantitative assessment of its biomass and production and its impacts on phytoplankton stocks and vertical."— Presentation transcript:

1 Mesozooplankton component General objective: Quantitative assessment of its biomass and production and its impacts on phytoplankton stocks and vertical matter flux. Approaches: 1. The biomass (as organic carbon and nitrogen) determined by combination on size structure (estimates based on OPC/ZOOSCAN measurements)* and direct determination of carbon and nitrogen contents(with CHN) * in mesozooplankton fractions. 2. The samples for description of zooplankton communities*. 3. Complementary process studies to estimate biological rates (details to be discussed during this meeting **) and fluxes through the compartment. - Egg production experiments* - Others *: Innovative approach *: Classical approach

2 Details ► Sampling 1. - Bongo net tows for samples Standard: Depth from 200 m to the surface Alternatives: - Depth defined in real time observation from size particles distribution UVP (to be discussed). - Open-close nets 2. - Net tows for living organisms

3 ► Processing on board: 1. Collected samples Conditioning samples for preservation Conditioning samples for weighting C/N: filtrations 2. Collected living organisms 24 h Egg production experiments

4 ► Measurement Lab OPC/ZOOSCAN: Fine resolution if the size-structured biomass Binocular:Faunistic distributions Counting from egg experiments

5 ► Objectives : 1. Quantify mesozooplankton biomass (200 µm-2000 µm) based on a fine resolution of its size structure using OPC and ZOOSCAN, and CHN weighting. Deliverables - Total biomass - Size-fraction biomasses (200-300 µm;300-500 µm;500-1000 µm; >1000 µm) from OPC/ZOOSCAN and from CHN on similar size fraction - Fine size-distribution of biomass from OPC and binocular: define main contributors

6 ► Objectives (suite): 2. Description of zooplankton communities Deliverables - Taxonomic tables per station - Identification of main contributors on size spectra 3. Derived index of zooplankton production with the slope of the biomass size spectrum Deliverables - Index of production - Derived fluxes as allometric relationship to weight: Respiration of planktonic communities by the use of biomass spectra and allometric relations

7 ► Objectives (suite): 4. Estimate zooplankton production from classical method: egg production of copepods Deliverable : Egg production per female Egg production per biomass fraction – Secondary production

Download ppt "Mesozooplankton component General objective: Quantitative assessment of its biomass and production and its impacts on phytoplankton stocks and vertical."

Similar presentations

Ecology Concepts Ecosystems.

Ecology Concepts Ecosystems.
ICHTHYOPLANKTONIC AND ACOUSTIC BIOMASS ESTIMATES OF ANCHOVY IN THE AEGEAN SEA (JUNE 2003 AND JUNE 2004) S. SOMARAKIS 1, A. MACHIAS 2, M. GIANNOULAKI 2,

ICHTHYOPLANKTONIC AND ACOUSTIC BIOMASS ESTIMATES OF ANCHOVY IN THE AEGEAN SEA (JUNE 2003 AND JUNE 2004) S. SOMARAKIS 1, A. MACHIAS 2, M. GIANNOULAKI 2,
Long term mesozooplankton changes in coastal waters of North Spain Ricardo González-Gil F. González-Taboada, J. Höfer, R. Anadón University of Oviedo Department.

Long term mesozooplankton changes in coastal waters of North Spain Ricardo González-Gil F. González-Taboada, J. Höfer, R. Anadón University of Oviedo Department.
Seasonal and Interannual Variability of Peruvian anchovy Population Dynamics --progress report-- Yi Xu and Fei Chai June 2007.

Seasonal and Interannual Variability of Peruvian anchovy Population Dynamics --progress report-- Yi Xu and Fei Chai June 2007.
Hawaiian shrimp and prawn biology, and their role in vertical carbon flux Yasha Podeswa.

Hawaiian shrimp and prawn biology, and their role in vertical carbon flux Yasha Podeswa.
Potential Approaches Empirical downscaling: Ecosystem indicators for stock projection models are projected from IPCC global climate model simulations.

Potential Approaches Empirical downscaling: Ecosystem indicators for stock projection models are projected from IPCC global climate model simulations.
Observatoire Océanologique de Villefranche sur Mer, BP 28, 06234 Villefranche sur Mer, France Long term zooplankton monitoring with the ZooScan -Insights.

Observatoire Océanologique de Villefranche sur Mer, BP 28, Villefranche sur Mer, France Long term zooplankton monitoring with the ZooScan -Insights.
Soot Particle Aerosol Mass Spectrometer: Development, Validation, and Initial Application T. B. Onasch,A. Trimborn,E. C. Fortner,J. T. Jayne,G. L. Kok,L.

Soot Particle Aerosol Mass Spectrometer: Development, Validation, and Initial Application T. B. Onasch,A. Trimborn,E. C. Fortner,J. T. Jayne,G. L. Kok,L.
Succession in a water column An adapting ecosystem maneuvering between autotrophy and heterotrophy Jorn Bruggeman Theoretical biology Vrije Universiteit.

Succession in a water column An adapting ecosystem maneuvering between autotrophy and heterotrophy Jorn Bruggeman Theoretical biology Vrije Universiteit.
Water column structure and zooplankton distribution along Trevor Channel, Barkley Sound Andrew Hamilton.

Water column structure and zooplankton distribution along Trevor Channel, Barkley Sound Andrew Hamilton.
Ocean Productivity Kelp Forest Macroalgae: 3% of Ocean Photosynthesis www.underwaterplanet.com.

Ocean Productivity Kelp Forest Macroalgae: 3% of Ocean Photosynthesis
Ocean Perturbation Experiment (OPEREX) CMORE Cruise, July 30 - August 14, 2008 Objective: To explore the potential and limitations of perturbation experiments.

Ocean Perturbation Experiment (OPEREX) CMORE Cruise, July 30 - August 14, 2008 Objective: To explore the potential and limitations of perturbation experiments.
Open Oceans: Pelagic Ecosystems II

Open Oceans: Pelagic Ecosystems II
Remote Sensing Hyperspectral Remote Sensing. 1. Hyperspectral Remote Sensing ► Collects image data in many narrow contiguous spectral bands through the.

Remote Sensing Hyperspectral Remote Sensing. 1. Hyperspectral Remote Sensing ► Collects image data in many narrow contiguous spectral bands through the.
CROZEX- CROZet circulation, iron fertilization and EXport production experiment Three cruises on RRS Discovery: Leg 1 - 1 November 2004 to mid-Dec Leg.

CROZEX- CROZet circulation, iron fertilization and EXport production experiment Three cruises on RRS Discovery: Leg November 2004 to mid-Dec Leg.
Adam M. Davis Center for Geospatial Data Analysis Indiana University, Bloomington, IN Studying geological controls on succession in an old field: Progress.

Adam M. Davis Center for Geospatial Data Analysis Indiana University, Bloomington, IN Studying geological controls on succession in an old field: Progress.
Using fatty acids as physiological and ecological indicator of zooplankton in the Yellow Sea: with implications in relationships of biochemical indices.

Using fatty acids as physiological and ecological indicator of zooplankton in the Yellow Sea: with implications in relationships of biochemical indices.
Sea ice algae, a major food source for herbivorous plankton and benthos in the eastern Bering Sea. Rolf Gradinger, Bodil Bluhm. Katrin Iken (UAF) Hypotheses.

Sea ice algae, a major food source for herbivorous plankton and benthos in the eastern Bering Sea. Rolf Gradinger, Bodil Bluhm. Katrin Iken (UAF) Hypotheses.
Introduction Oithona similis is the most abundant copepod in the Gulf of Alaska, and is a dominant in many ecosystems from the poles to the sub-tropics.

Introduction Oithona similis is the most abundant copepod in the Gulf of Alaska, and is a dominant in many ecosystems from the poles to the sub-tropics.
Urgent need of new tools to monitor and analyze the deep ocean processes. Underwater Vision Profiler (UVP) mounted on an underwater observatory for long.

Urgent need of new tools to monitor and analyze the deep ocean processes. Underwater Vision Profiler (UVP) mounted on an underwater observatory for long.

Similar presentations

Ads by Google