Gulf of Maine, Explained: Otoliths
Gulf of Maine, Explained | Sep 27, 2018
As you scroll through your social media feeds, you’ll see all kinds of information — often too much — about your friends. Imagine if the same were true about your fish.
Well, fish aren’t on Facebook, but they do have a public profile of sorts. It’s called an otolith — which you can think of as an inner ear bone. When fish are harvested, scientists can extract otoliths for physical and chemical analysis.
From this tiny calcium carbonate structure, scientists can learn more about how old a fish is, where it was born, and what environments it experienced over its lifetime.
This information is critical to fisheries managers, who need data about fish populations to make good decisions about sustainable harvest.
In this installment of Gulf of Maine, Explained, Fisheries Ecologist Dr. Lisa Kerr explains the importance of otoliths, and how she uses them in her research on Atlantic Bluefin tuna.
Gulf of Maine, Explained
In our video series, The Gulf of Maine, Explained, you’ll learn more about important-but-unfamiliar concepts related to our work. We’ll cover commercial fishing, fisheries research, sustainable seafood, education, and more. While we probably won’t answer all your questions in one short video, we hope to spark your curiosity about complicated issues that are central to our mission.
-
National Climate Assessment Contributions
In late 2023, four scientists from Maine played significant roles in shaping The Fifth National Climate Assessment (NCA5).
Tidings
-
Introducing Gulf of Maine Tastemakers
In early 2024, we launched our Gulf of Maine Tastemakers program, which consists of businesses and institutions that are committed to putting local seafood front …
Tidings
-
Blue w(AI)ve Accelerator Launches
In early 2024, we announced a new partnership between Gulf of Maine Ventures and The Roux Institute at Northeastern University to drive blue technology innovation.
Tidings
-
Collaborative Solutions: Port Visits Support Engagement in Offshore Wind
Offshore wind development in the Gulf of Maine is a complex and rapidly-changing issue. Explore our early impact on the ongoing process, providing independent, science-based …
Perspectives