Expedition Blog: In the Field with Aquarium Educator Mendel Graeber

by Mendel Graeber, Alabama Aquarium

Hi, I’m Mendel Graeber, Alabama Aquarium Educator. I am reporting from a research expedition on a boat, the R/V (for ‘research vessel’) Pelican, in the northern Gulf of Mexico (nGOM).

Research Vessel Pelican
The Research Vessel Pelican is based at LUMCON’s DeFelice Marine Center in Cocodrie, Louisiana. She's often referred to by oceanographers as the “Workhorse of the Gulf” and has a long track record of successful scientific research and is equipped to handle operations.

Have you ever wanted to go on a research expedition? I can’t transport you here in person, but I’ll do my best to bring you along virtually.

Before I dive further into the expedition (figuratively; there’s no SCUBA diving involved), a little background about myself. I have worked as an educator at the Dauphin Island Sea Lab for 22 years. I have a bachelor’s degree in environmental science and a master’s degree in geoscience (earth sciences). This is my third research cruise aboard the R/V Pelican. I’m playing dual roles as a member of the science party and the ship-to-shore educator.

Mendel Graeber in the tech lab
Mendel Graeber is the Alabama Aquarium educator.

This is an eight-day research expedition, during which I’ll have the opportunity to record and share the science! Recent technology upgrades have granted us internet connectivity for posting from the boat. So, check back for regular updates to see what it’s like to do science!

Let’s talk about science! The word ‘science’ is used in different ways. Science, as a philosophy is the systematic study of the world using testable questions addressed through observation, experimentation, and measurement. Humans may ask compelling questions that are not testable, so these would not be addressed in the realm of science. An example would be, “What is the meaning of life?”

A little sidenote about measurements and math – you can think of this as a very precise and universal language for sharing information. Maybe you’ve tried a recipe from your grandmother, who gave you a list of ingredients in estimated amounts like a pinch, a dash, a smidgen, a handful, or a scosh. What are the odds that you could accurately replicate her dish? You’d have a much better chance with more precisely communicated measurements like ¼ teaspoon, 3 tablespoons, 1 cup, etc. Scientists use the Language of Mathematics because it’s concise, precise, and unambiguous.

measuring mud
A mud core is measured as part of sampling on the R/V Pelican.

So, back to the various ways we use the word ‘science’. Science as a process is the framework of logical steps to address a research question. This is often called the scientific method. Science as a practice is the doing of science, the implementation of the plan. We may also use ‘science’ to refer to a body of knowledge.

For this project, we’ll be giving you a peek into the practice of science, getting into the nitty gritty details of how we go about addressing this question.

recording oxygen level in mud
DISL Ph.D. student Priya Gilman measures the oxygen levels in the mud core. Gilman is co-advised by Dr. Brandi Kiel-Reese and Dr. Jeffrey Krause.
water column logging
University of Colorado Boulder PhD student Claire Purnananda records measurements of dissolved oxygen, salinity, and water temperatures at one of the sampling sites. She works in Dr. Shaily Rahmans's lab.
scooping mud samples
Dr. Chequita Brooks, LUMCON post-doc in Dr. Marshall Bowles' lab, packs samples of mud to bring back to the lab for analysis.