Ever wonder how scientists figure out what fish eat – or why they are even curious about fish diets? One answer to these questions comes from a popular sport fishery in Lake Ontario for...
Do you ever wonder how scientists get information about the habitat preferences, spawning periods, and migration of fish? There are two methods by which we can observed fish: direct and indirect. An example of...
Snorkellers and divers exploring warm tropical waters often encounter a mesmerizing fish species known as a lionfish (Pterois spp., Figure 1). They may look beautiful with their feathery fins and striped pattern, but lionfish...
Many species complete annual migrations, usually in search of ideal climates, rich food resources, or prime breeding grounds. When thinking of migration, the hundreds of miles some bird species or monarch butterflies (Danaus plexippus)...
One of the most challenging periods of a fish’s life is centered around reproduction. Many species approach reproduction through nest building. It is generally the males that are tasked with finding territory, building a...
If you have never seen a muskellunge (Esox masquinongy), they are magnificent, large, and powerful apex predators in the waterbodies they reside (Figure 1). Georgian Bay in Lake Huron supports a self-sustaining native muskellunge...
The round goby (Figure 1) is a relatively small fish species endemic to the Caspian and Black Seas. They have invaded North America and Western Europe, packing a nasty punch to native species. These...
