• Skip to main content
  • Skip to header right navigation
  • Skip to site footer
  • WordPress
  • Facebook
  • Twitter
  • Instagram
  • LinkedIn
  • YouTube
Science Update

Science Update

Sharing Science | Satisfying Curiosity | Debunking BS

  • Spotlights
  • Reality Check
  • Why Is It?
  • Radio Archives
  • Sciup @ School
Home » Radio Archive » Daily Show » Old Fish

Old Fish

September 18, 2017
https://podcast.scienceupdate.com/170918_sciup_fish.mp3

Podcast: Play in new window

An adult yelloweye rockfish Sebastes ruberrimus foraging above the reef for smaller rockfishes and other prey. Victoria O'Connell
An adult yelloweye rockfish foraging above the reef for smaller rockfishes and other prey. Victoria O’Connell

BOB HIRSHON (host):

Protecting elder fish. I’m Bob Hirshon and this is Science Update.

Many varieties of fish live to be a hundred or more years old, growing bigger with each year. University of Washington marine ecologist Lewis Barnett explains that as fish age, they may breed earlier, produce more eggs, and occupy different areas and depths.

LEWIS BARNETT (University of Washington):

In many species, the young fish will settle and live in shallower near shore, and as they grow and mature, they move to deeper off shore habitats.

HIRSHON:

Having a diversity of ages keeps fish populations healthy. But in the journal Current Biology, Barnett and his colleagues report that fishing pressures have led to reductions of up to 90% in the senior fish demographic. To protect these big old fish, they suggest maximum size limits for many species, and the creation of no fishing zones, where at least some fish can live well into their hundreds. I’m Bob Hirshon, for AAAS, the science society.

 

Category: Daily Show, Station DownloadTag: Environment & Conservation, Wildlife
Previous Post:DNA Cargo Robots
Next Post:Butterfly Wing Patterns

Sidebar

Radio Program Archives

Want to learn more about the brain? The environment? Here you can browse the topics that come up regularly on Science Update.

Search the Archives

Categories

  • Daily Show
  • Station Download
  • Weekly Show

Find By Tag

  • 2020
  • Acoustics & Sound
  • Aging
  • Animal Behavior
  • Anthropology
  • Archaeology
  • Astronomy & Space
  • Biology
  • Brain Science
  • Bugs
  • Chemistry
  • Children & Families
  • cicadas
  • Climate & Weather
  • Communications
  • Computer Science
  • Economics & Business
  • Education
  • Energy
  • Engineering & Technology
  • Environment & Conservation
  • Genetics & Evolution
  • Geology
  • Marine Science
  • Materials Science
  • Mathematics
  • Medicine & Health
  • Microbiology
  • Nanotechnology
  • Nutrition & Food Science
  • Paleontology & Dinosaurs
  • Physics
  • Plants & Agriculture
  • Political Science
  • Reality Check
  • Social & Behavioral Sciences
  • Sports & Fitness
  • spotlight
  • Spotlight Bugs
  • Terrorism & War
  • Why Is It? Questions
  • Wildlife
  • Year in Review

Find By Date

Science Update
  • About Science Update
  • Privacy Policy
  • Terms of Use

Follow Us

  • Facebook
  • YouTube

Recent Posts

Mayan Honeybee hives
House sparrow wearing top hat rides aboard a red fireworks rocket

Copyright © 2023 · Springtail Media LLC · All Rights Reserved · Powered by Pongos