Northeast of Italy’s stiletto heel, in the Southern Adriatic Sea, the continental shelf drops off into a submarine feature known as Bari Canyon (Figure 1). This undersea canyon is similar to one you might...
Calling all recreationists and outdoorspeople! It is the season of giving, so please consider ways to give back to your local fish habitat which provides drinking water, food, and recreational opportunities. While outdoors we...
When ecologists need to assess stream habitat to make sure it is healthy for a fish population, they often choose to quantify rather than qualify the characteristics of the habitat. Both quantitative and qualitative...
An invasive insect could threaten salmon habitat in the Pacific Northwest. The green alder sawfly (Monosoma pulveratum) was first documented in North America in the 1990s and may have been introduced through shipping dunnage...
Streams can be thought of as an open-concept house for fish. Every hydrological feature, like a room, serves a unique function while flowing seamlessly (and stylishly) together to create an integrated living space (Figure...
Stream restoration projects typically increase the complexity of stream habitat. At their most basic, restoration projects add materials such as boulders and tree root wads to the streambed that slow down the water and...
Direct observation of animals in their natural habitat is a cornerstone of natural history and ecology, but observing aquatic organisms presents numerous challenges because they live under water. Intrepid scientists and enthusiasts have breached...
Imagine diving into a cool body of water after exercising or working in hot weather. This is an example of behavioral thermoregulation—changing your actions in order to influence your body temperature. Freshwater fish do...
