UW News

Ted Pietsch


July 30, 2020

Deep-sea anglerfishes have evolved a new type of immune system

a female anglerfish with a male attached

Deep-sea anglerfishes employ an incredible reproductive strategy. Tiny dwarfed males become permanently attached to relatively gigantic females, fuse their tissues and then establish a common blood circulation. Now scientists have figured out why female anglerfishes so readily accept their male mates. Their findings are published July 30 in Science.


March 23, 2020

Anatomy of a frogfish: New book explores world of fishes with arms and legs

Cover of book. "Frogfishes: Biodiversity, Zoogeography, and Behavioral Ecology" was published in March by Johns Hopkins University Press.

Any old fish can swim. But what fish can walk, scoot, clamber over rocks, change color and even fight to the death? That would be the frogfish. A talk with Ted Pietsch, UW professor of emeritus of aquatic and fishery sciences, about his latest book, “Frogfishes: Biodiversity, Zoogeography, and Behavioral Ecology”


June 18, 2019

First book published on fishes of the Salish Sea

rockfish illustration

The first book documenting all of the known species of fishes that live in the Salish Sea is now available.


March 22, 2018

A blind date in the deep sea: First-ever observations of a living anglerfish, a female with her tiny mate, coupled for life

fish swimming

A pair of anglerfish, a species never before seen alive by humans, was recorded recently on camera by researchers aboard the LULA1000, a submersible operated by the marine science-focused Rebikoff-Niggeler Foundation.


January 18, 2018

Q&A: Forgotten fish illustrator remembered through first publication

Large Scaled Gurnard

More than three centuries ago, a French monk made thousands of drawings of plants and animals, traveling under the authority of King Louis XIV to the French Antilles to collect and document the natural history of the islands. These drawings were often the first ever recorded for each species and were completed in remarkable detail….


September 30, 2015

Known fish species living in the Salish Sea increases in new report

An illustration of the longfin sculpin (Jordania zonope).

A new report published Tuesday documents all of the fishes that live in the Salish Sea. In total, 253 fish species have been recorded, and that’s about 14 percent more than in the last count.


August 4, 2015

New fish genus and species named for its red, fingerlike fins

Red, orange and pink color variation.

University of Washington scientists recently announced the name of a new genus and species of frogfish, which are small, stocky creatures found in most tropical and subtropical oceans around the world.