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A California Chinook Salmon Jumps into a waterfall during spawning season
Geneticists Light Up Debate on Salmon Conservation
Splitting Chinook salmon into two groups based on their DNA could aid conservation efforts. But some researchers argue that this would be a misuse of the data.
Geneticists Light Up Debate on Salmon Conservation
Geneticists Light Up Debate on Salmon Conservation

Splitting Chinook salmon into two groups based on their DNA could aid conservation efforts. But some researchers argue that this would be a misuse of the data.

Splitting Chinook salmon into two groups based on their DNA could aid conservation efforts. But some researchers argue that this would be a misuse of the data.

fisheries

Infographic comparing the fall and spring salmon runs
Infographic: An Incredible Journey
Christie Wilcox, PhD | Feb 1, 2023 | 1 min read
Chinook make their way up the Klamath River every year, but fewer and fewer arrive in the spring.
Timeline summarizing a series of petitions filed about the Chinook salmon
Timeline: An Extended Battle
Christie Wilcox, PhD | Feb 1, 2023 | 3 min read
Various concerned groups have been petitioning NOAA Fisheries to list spring-run Chinook salmon in Oregon and Northern California for over a decade.
A postcard from the early 1900s depicting an Indigenous midden in Damariscotta, Maine.
Sticks and Bones, Circa 8000 BCE
Dan Robitzski | Sep 1, 2022 | 3 min read
Ancient stashes of animal bones, tools, and other artifacts are often dismissed as archaic garbage heaps, but the deposits provide glimpses of the cultural practices and environmental conditions of past Indigenous settlements.
close-up of a salmon's head swimming among underwater plants
Sudden Decline in Salmon Growth May Signal Ecological Shift
Natalia Mesa, PhD | Mar 4, 2022 | 5 min read
The decrease in growth appears to be associated with increasing water temperatures, affecting animals throughout the marine food web.
view from below of hundreds of silver sardines swimming in the same direction
Famous South African Sardine Run Doesn’t Benefit Sardines: Study
Alex Billow | Oct 19, 2021 | 5 min read
An analysis suggests that a commercially important mass migration of fish may have no real adaptive value.
dead fish piled in boxes along a pier, with a boat and snowy mountains in the background
Fish Poop a Big Player in Ocean Carbon Sequestration
Katarina Zimmer | Oct 8, 2021 | 5 min read
A modeling study estimates that by drastically reducing fish biomass over the past century, industrial fishing may be affecting ocean chemistry, nutrient fluxes, and carbon cycling as much as climate change.
African penguins Spheniscus demersus foraging hunting fish fisheries abundance ecology
Image of the Day: Fish Hunters
Chia-Yi Hou | Jun 3, 2019 | 1 min read
Watch penguins hunting from their point of view.
fish fence fencing conservation fishing ecological effect socioeconomic tropical ocean
Image of the Day: Fish Fences
Chia-Yi Hou | May 22, 2019 | 1 min read
Structures built in tropical coastal waters capture fish, but harm the ecosystem and may lead to overfishing.
Researchers Aim to Reestablish an Ancient Fish in an Ohio River
Shawna Williams | Jan 1, 2019 | 5 min read
The sturgeon restoration study’s outcome won’t be known for decades.
Fishy Behavior: Prof Allegedly Profited from School Caviar Sales
Ashley P. Taylor | Oct 29, 2018 | 2 min read
A University of Georgia fisheries researcher, who is head of the school’s program to farm-raise sturgeon and sell their salt-cured eggs, is expected to retire this week.
Lantern in the Dark
Jim Daley | Jul 1, 2018 | 2 min read
Lanternfish evolution provides unique insights into how deep-sea species might respond to commercial fishing.
Climate Change Will Force Hundreds of Marine Species to Move
Catherine Offord | May 16, 2018 | 2 min read
A study of 686 fish and invertebrates predicts that some animals will have to shift more than 1,000 kilometers to stay within tolerable temperatures.
Large Female Fish Play a Big Role in Replenishing Populations: Study
Diana Kwon | May 11, 2018 | 2 min read
Bigger, older mothers produce disproportionately more eggs than their smaller counterparts do.
NOAA: Common Pesticides Threaten Endangered Salmon, Other Marine Life
Shawna Williams | Jan 15, 2018 | 1 min read
Organophosphates jeopardize dozens of species, a federal review finds.
Study: Fishing Induces Gene Expression Changes
Jef Akst | May 18, 2017 | 2 min read
Harvesting lab-raised zebrafish based on their size led to differences in the activity of more than 4,000 genes, as well as changes in allele frequencies of those genes, in the fish that remained.
Can’t Take the Heat
Molly Sharlach | Oct 10, 2014 | 2 min read
Warming waters will cause many fish species to move from the tropics toward the poles, a study predicts.
Something Fishy Going On?
Dan Cossins | Jan 10, 2013 | 2 min read
Fisheries scientists allege that an official wanted to abolish their department because their research contradicted the findings of other agencies.
Coughing Seashells
Edyta Zielinska | Nov 28, 2012 | 1 min read
A type of scallop expels water and waste through a sort of cough that could reveal clues about water quality.
Little Fish in a Big Pond
Ellen K. Pikitch | Nov 1, 2012 | 3 min read
Continued overfishing of forage fish such as sardines and herring can result in devastating ecological and economic outcomes.
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