Kelly Benoit-Bird

Oregon State University

Predator–prey dynamics reveal hidden structure in the sea

Monday, September 21, 2015
Pacific Forum—11:00 a.m.

The ocean is not uniform—it is messy, patchy, and heterogeneous. These “patches of plenty” are key to how the ocean ecosystems function yet provide a significant sampling challenge. The integration of a suite of traditional and novel tools, including active acoustics, is revealing previously undescribed biotic structure in the sea. For example, rather than being uniformly distributed, bathypelagic squid, key prey for beaked whales, are spatially heterogeneous at scales from 10 m to 50 km. Higher in the water column, scattering layers are not extensive, well-mixed features, but instead are made up of distinct, small patches of animals of similar size and taxonomy that coalesce in response to predation risk. The dynamic view of spatial structure beneath the ocean’s surface that new sampling, deployment, and analysis approaches are providing critically affects our understanding of the processes driving predator-prey interactions, energy transfer, biogeochemical cycling, and other ecological processes in the sea.

Next: October 7—Leif Thomas

Products

Data repository
Data policy
What is happening in Monterey Bay today?
Central and Northern California Ocean Observing System
Chemical data
Ocean float data
Slough data
Mooring ISUS measurements
M1 ISUS CTD Data Display
Southern Ocean Data
Mooring data
M1 Mooring Summary Data
M1 ADCP (CeNCOOS)
M1 Asimet
M1 Download Info
M1 EMeter
M1 Flourometer (CeNCOOS)
M1 GPS Location
Molecular and genomics data
ESP Web Portal
Seafloor mapping
Upper ocean data
Spatial Temporal Oceanographic Query System (STOQS) Data
Tide prediction
Image gallery
Video library
Seminars
Previous seminars
David Packard Distinguished Lecturers
Research software
Video Annotation and Reference System
System Overview
Knowledgebase
Installation
Annotation Interface
Video Tape User Guide
Video File User Guide
Still Images User Guide
Installation
Annotation Glossary
Query Interface
Basic User Guide
Advanced User Guide
Results
Installation
Query Glossary
FAQ
VARS Publications
Oceanographic Decision Support System
MB-System seafloor mapping software
MB-System Documentation
MB-System Announcements
MB-System Announcements (Archive)
How to Download and Install MB-System
MB-System Discussion Lists
MB-System FAQ
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
MBARI Summer Internship Program
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
Center for Microbial Oceanography: Research and Education (C-MORE) Science Kits
Publications
Sample archive