Fish

A Fixed-Effort Fishery More Sustainable for Economy and Environment

November 04, 2020
Study Considers Food Web, Extinction Cascades and Human Dynamics

For a truly sustainable fishery, more needs to be considered than just the abundance of the harvested species. Harvesting even abundant species can create indirect extinction cascades down the food web that can harm the long-term economic and ecological sustainability of a fishery. 

That is according to a study from the University of California, Davis, published today in the journal Science Advances. 

CRISPR a Tool for Conservation, Not Just Gene Editing

May 21, 2020
Scientists Use CRISPR to Rapidly Identify Endangered Delta Smelt and Its Look-Alikes

The gene-editing technology CRISPR has been used for a variety of agricultural and public health purposes — from growing disease-resistant crops to, more recently, a diagnostic test for the virus that causes COVID-19.

CABA personnel keeping an eye on fish

April 06, 2020

In a remote section of campus west of Highway 113, Matthew Stone and a few students are looking after the well-being of thousands of fish at the UC Davis Center for Aquatic Biology and Aquaculture. Stone is the assistant facilities manager at CABA.

“We have quite a large number of fish that we’re trying to take care of and they all have different needs that we need to address,” he said. “These are things we simply cannot skip over during a time like this.”

Closing the loop on sustainable aquaculture

May 29, 2018

Inside the world’s first caviar farm that uses fish waste to grow vegetables

On a farm just outside of Sacramento, hundreds of prehistoric-looking fish swim around in 50-foot diameter tanks. These are white sturgeon, the largest freshwater fish in North America. They’ve been around since dinosaurs, can grow more than 7 feet long and lay hundreds of thousands of eggs at a time. The roe of these sturgeon are harvested for a boutique food producer regally named Tsar Nicoulai Caviar.

Walleye fish populations are in decline

March 29, 2018

Study a warning signal for popular game fish

Walleye, an iconic native fish species in Wisconsin, the upper Midwest and Canada, are in decline in northern Wisconsin lakes, according to a study published this week in the Canadian Journal of Fisheries and Aquatic Species.

Coping With Climate Stress in Antarctica

January 17, 2018
Some polar fish can cope with warming or ocean acidification, but not both together. Some Antarctic fish living in the planet’s coldest waters are able to cope with the stress of rising carbon dioxide levels in the ocean. They can even tolerate slightly warmer waters.

A Fish Story

January 16, 2018
Spring-fed waters a critical habitat for cold-water fish   Rainbow trout like their water cold. As the climate changes and temperatures rise, cold-water fish species such as trout and salmon don’t fare well in waterways that run low and warm.

“Native fish in California are imperiled throughout the state,” said Carson Jeffres, field and lab director at the UC Davis Center for Watershed Sciences. “During the drought, we saw a dramatic change in the aquatic habitats that were available.”

Can We Eat Fish and Protect it too?

November 27, 2017
Scientists help clarify labels and shore up supply  

Seafood is low in fat, high in protein, and a great source of Omega 3 fatty acids, which doctors say can boost brain development and help prevent ailments like depression, arthritis, and heart disease.

Health benefits are one reason people are eating more fish. The United Nations reports that global per capita fish consumption has hit a record high and continues to climb.

Can fisheries sustainably keep up with rising demand? What is “sustainable seafood” anyway?