Sumários

The role of dust on coccolithophore export production: Case study in the Tropical North Atlantic

13 Dezembro 2022, 13:00 • Catarina Guerreiro

1. Coccolithophores in the context of climate-driven ocean stratification

2. Impacts of atmospheric dust on the ocean
3. Case Study: Sahara Dust in the Tropical Atlantic  
4. “Take Home Messages” and Bibliography

Exercices (continuation)

13 Dezembro 2022, 11:30 • Catarina Guerreiro

Explore the latitudinal distribution of ecologically distinct taxa, and their relationship with environmental parameters including species diversity, Chl-a Fluorescence and ocean temperature, based on data collected from the photic zone of the ocean across the North- and Equatorial Atlantic. Discussion of the results. 


The role of calcifying phytoplankton on marine biogeochemical cycles & climate

13 Dezembro 2022, 10:00 • Catarina Guerreiro

1. Marine Carbon Cycle: why does it matter?

            1.1. Physical Carbon Pump

            1.2. Biological Carbon Pump

            1.3. Carbonate Counter Pump

2. The role of coccolithophores in the Marine Carbon Cycle 

            - Concepts of “Coccolith-Ballasting Effect” & PIC/POC ratio

            - Impacts from CO2-related climate warming

3. The role of biogenic calcification in the Earth’s climate over time

4. “Take-home” messages & Bibliography

Coccolithophores as environmental proxies at different time scales

6 Dezembro 2022, 13:00 • Catarina Guerreiro

1. Coccolithophores’ post-mortem: what happens in the ocean?
2. The role of coccolithophores for the study of Earth's history
3. Methods of study
4.”Take Home Message” & Bibliography

Exercises

6 Dezembro 2022, 11:30 • Catarina Guerreiro

Exercise 1: Explore the latitudinal distribution of ecologically distinct taxa.

Exercise 2: Use software PAST to explore which environmental factors were more important to determine the abundance and latitudinal distribution of the 4 coccolithophore taxa, using a Principal Component Analysis (PCA).