Forage fish

Forage fish (or forage fishes) are small schooling fish that form a critical link in the marine food web between zooplankton and larger fish and wildlife consumers. They occupy every marine and estuarine nearshore habitat in Washington, and much of the intertidal and shallow subtidal areas of the Puget Sound Basin are used by these species for spawning habitat. Status of forage fish populations can be an indicator of the health and productivity of nearshore systems (PSP 2009). Information on forage fish life history, distribution, and habitat preferences is summarized in Marine Forage Fishes of Puget Sound (Penttila 2007) and the Forage Fish Management Plan (Bargmann 1998).

The three most common forage fish species in the Puget Sound basin are Pacific herring (Clupea pallasi), surf smelt (Hypomesus pretiosus), and Pacific sand lance (Ammodytes hexapterus).

Source: Puget Sound Science Review.

Overview

Forage fish occupy every marine and estuarine nearshore habitat in Washington, and much of the intertidal and shallow subtidal areas of the Puget Sound Basin are used by these species for spawning habitat.

Pacific herring (Clupea pallasii). Image courtesy of NOAA.

Related Articles

Each winter and spring, researchers survey the sometimes spectacular spawning events of Puget Sound's Pacific herring. They have found wide swings in the fish's population and an overall decline in herring numbers since the 1970s, but little is known about the cause or what this might mean for the health of the food web. We spent a day with a biologist spotting herring eggs and considering the future of one of our region's most ecologically and culturally important fish species. 

Although fall and winter were warm, February brought cold snowy weather and low river flows. Despite colder air temperatures, the productive season has already started in Hood Canal and Holmes Harbor. Puget Sound waters were warmer than expected through January, and the warmest waters were in Hood Canal, possibly creating a thermal refuge for cold-sensitive species such as anchovies. We saw lots of sea lions feasting on anchovies in Case Inlet, and we may have captured some herring spawning activity. Unusual for mid-winter, we saw jellyfish patches in Eld and Budd inlets. See the new publication about ocean acidification featuring twenty-five years of our marine monitoring data!

A 2018 report published by the University of Washington Puget Sound Institute and the Washington Department of Fish and Wildlife brings together an assessment of key science and other knowledge related to herring recovery in the Salish Sea. The report was produced with support from the SeaDoc Society and received input from a cross-border team from state and federal agencies, universities and area tribes.

Pacific herring are a pelagic fish species found from northern Baja California to northern Honshu Island, Japan. They are found throughout the Puget Sound basin and are a mix of “resident” and “migratory” stocks. 

New research shows that warmer and more acidic oceans could lead to shorter embryos and higher respiration in Pacific herring.

Scientists argue that herring managers should take a tip from stock market investors and diversify the population’s “portfolio.”