Jon Havenhand

University of Gothenburg, Sweden

Down the rabbit hole: Cautionary tales of an ocean acidification researcher

Wednesday, August 26, 2015
Pacific Forum—11:00 a.m.

Increased awareness of ocean acidification has advanced the field considerably over the last decade. Early biological studies typically showed negative effects of acidification (only) on one process/species. More recent, and more complex, investigations have shown that additional stressors such as temperature, salinity, and food supply can exacerbate (or in some cases mediate) these responses. The next step–to simulate the effects of fluctuating environmental variables (not least pH), and to investigate the effects of multiple stressors on multiple trophic levels–are now beginning to yield fruit. Here I present results from our recent investigations into the effects of fluctuating pH, and the influence of warming, acidification, and biodiversity on ecosystem properties. We not only found non-intuitive and complex responses, but also found that traditional analytical methods could have missed these. Informative non-traditional approaches to analyze and interpret results from ocean acidification will be discussed.

Next: August 31—Noel Du Toit


Data repository
Data policy
Deep-Sea Guide
What is happening in Monterey Bay today?
Central and Northern California Ocean Observing System
Chemical data
Ocean float data
Slough data
Mooring ISUS measurements
Southern Ocean Data
Mooring data
M1 Mooring Summary Data
M1 Asimet
M1 download Info
M1 EMeter
Molecular and genomics data
ESP Web Portal
Seafloor mapping
Soundscape Listening Room
Upper ocean data
Spatial Temporal Oceanographic Query System (STOQS) Data
Image gallery
Video library
Creature feature
Deep-sea wallpapers
Previous seminars
David Packard Distinguished Lecturers
Research software
Video Annotation and Reference System
System overview
Data Use Policy
Video Tape User Guide
Video File User Guide
Annotation Glossary
Query Interface
Basic User Guide
Advanced User Guide
Query Glossary
VARS publications
VARS datasets used in publications
Oceanographic Decision Support System
MB-System seafloor mapping software
How to download and install MB-System
MB-System Documentation
MB-System Announcements
MB-System Announcements (Archive)
MB-System FAQ
MB-System Discussion Lists
MB-System YouTube Tutorials
Matlab scripts: Linear regressions
Introduction to Model I and Model II linear regressions
A brief history of Model II regression analysis
Index of downloadable files
Summary of modifications
Regression rules of thumb
Results for Model I and Model II regressions
Graphs of the Model I and Model II regressions
Which regression: Model I or Model II?
Matlab scripts: Oceanographic calculations
Matlab scripts: Sound velocity
Visual Basic for Excel: Oceanographic calculations
Educational resources
Navigating STEM careers
MBARI Summer Internship Program
2017 Summer Interns Blog
Education and Research: Testing Hypotheses (EARTH)
EARTH workshops
2016—New Brunswick, NJ
2015—Newport, Oregon
2016 Satellite workshop—Pensacola, FL
2016 Satellite workshop—Beaufort, NC
EARTH resources
EARTH lesson plans
Lesson plans—published
Lesson plans—development
Lesson drafts—2015
Lesson drafts—2016 Pensacola
Adopt-A-Float Program
Center for Microbial Oceanography: Research and Education (C-MORE) Science Kits
Science at home: Curriculum and resources
Sample archive
SciComm Resources