Predation

Predation

NOTEBOOK FEATURE: A closer look at how predation and flow impact salmon survival

Fish and wildlife Notebook News and Features

July 16, 2025

Scarce flows, hungry predators, warm water, and politics conspire against salmon in the Delta, but which is the dominant stressor?...

EDWARD RING: Ignoring role of bass in salmon decline is negligence

Commentary Ecosystems

March 20, 2025

By Edward Ring, California Policy Center A March 5 “Perspective” in the Manteca Bulletin highlights a chronically underemphasized problem impacting every...

CU BOULDER: How young salmon navigate a gauntlet of danger en route to the sea

University of Colorado at Boulder

Fish and wildlife

February 25, 2025

By Yvaine Ye, Univeristy of Colorado at Boulder For young salmon, the journey along the San Joaquin River in Central...

NOTEBOOK FEATURE: The impacts of non-native fish on salmon populations in the San Joaquin River

Best of the Notebook Delta science Fish and wildlife Notebook News and Features

December 9, 2024

“What data we have suggests that the predation is a huge factor that will probably preclude any recovery of salmonids...

PRESS RELEASE: The missing piece: Protecting California’s struggling native fish

SJV water agencies

Fish and wildlife

July 18, 2024

New study reveals significant impact of predation on native fish populations Press release from the Banta-Carbona Irrigation District A groundbreaking...

IEP ANNUAL MEETING: Understanding Predators to Better Understand Predation

Delta science Fish and wildlife Science

September 7, 2023

Salmon populations in the Sacramento-San Joaquin Delta have significantly decreased over the past century, with most populations considered endangered, threatened,...

DELTA LEAD SCIENTIST: The role of water quality in salmon predation

Delta science Fish and wildlife

December 6, 2022

At the November meeting of the Delta Stewardship Council, Delta Lead Scientist Laurel Larsen spotlighted research funded by the Council...

FIVE QUESTIONS: John McManus, Golden State Salmon Association

Fish and wildlife Notebook News and Features

June 21, 2022

Welcome to Five Questions, a new (hopefully) weekly series that will pose five questions to folks working on California water...

EXPLAINER: Delta fishes: Introduction to a dynamic fauna

Best of the Notebook Delta science Fish and wildlife Notebook News and Features

June 2, 2022

Dr. Peter Moyle is a distinguished professor emeritus and Associate Director of the Center for Watershed Sciences at UC Davis. ...

DELTA SCIENCE UPDATE: Juvenile Chinook salmon antipredator behavior; Science Action Agenda, Review of the Delta monitoring enterprise

Delta science Notebook News and Features

May 11, 2022

At the April meeting of the Delta Stewardship Council, Delta Lead Scientist Dr. Laurel Larsen highlighted research on juvenile salmon...

DELTA LEAD SCIENTIST REPORT: Salmon predation in the Delta; Fact sheets on steelhead trout and chinook salmon; and the activities of the Delta Science Program

Delta science Fish and wildlife

October 21, 2021

At the September meeting of the Delta Stewardship Council, Delta Lead Scientist Dr. Laurel Larsen spotlighted an article on salmon...

FEATURE: Fish predation on a landscape scale in the Delta

Delta science Fish and wildlife

October 14, 2020

Fisheries Biologist Cyril Michel discusses recent predator manipulation studies done in the Delta and efforts to develop a predictive model...

DELTA LEAD SCIENTIST REPORT: New research papers focus on habitat, flow, predation

Delta science Notebook News and Features

July 30, 2020

[cmtoc_table_of_contents] At the July meeting of the Delta Stewardship Council, Delta Lead Scientist Dr. John Callaway updated the Council on...

METROPOLITAN BAY-DELTA COMMITTEE: Salmon predation in the Delta

Delta science Ecosystems

August 29, 2019

Study results suggest removing predators won’t address the problem, but removing submerged aquatic vegetation might At the May meeting of...

THE DELTA AND THE TRIBUTARIES, part 3: Moving the Delta and the tributaries towards a sustainable future

Ecosystems Notebook News and Features

February 22, 2018

The Sierra Nevada plays a critical role in California’s water supply: Snowpack in the mountain provides a natural form of...

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