Fish Advisory for Los Banos Reservoir Offers Safe Eating Advice for Four Fish Species

For Immediate Release:
Julian Leichty
(279) 895-5930
Julian.Leichty@oehha.ca.gov

SACRAMENTO – A state fish advisory issued today for Los Banos Reservoir in Merced County provides safe eating advice for black bass species, Common Carp, sunfish species and Threadfin Shad.

Los Banos Reservoir is located approximately 33 miles southwest of Merced. The California Environmental Protection Agency’s Office of Environmental Health Hazard Assessment (OEHHA) developed the recommendations based on the levels of mercury found in fish caught from the reservoir.

“Many fish have nutrients that may reduce the risk of heart disease and are excellent sources of protein,” said Dr. Lauren Zeise, director of OEHHA. “By following our guidelines for fish caught in Los Banos Reservoir, people can safely eat fish low in chemical contaminants and enjoy the well-known health benefits of fish consumption.”

When consuming fish from Los Banos Reservoir, the following advice is issued:

  • Women ages 18 – 49 and children ages 1 – 17 should not eat black bass species. They may safely eat a maximum of one total serving per week of Common Carp, sunfish species or Threadfin Shad.
  • Women ages 50 and older and men ages 18 and older may safely eat a maximum of three total servings per week of sunfish species or Threadfin Shad, or two total servings per week of Common Carp, or one total serving per week of black bass species.

OEHHA’s fish advisory recommendations are based on the levels of contaminants, such as mercury, that persist in the environment and accumulate in fish. They are independent of any advisories to limit fish intake due to freshwater or estuarine harmful algal blooms (HABs). Before fishing, check the California HABs Portal to see if there are recommended HAB advisories and always practice healthy water habits.

One serving is an eight-ounce fish fillet, measured prior to cooking, which is roughly the size and thickness of your hand. Children should eat smaller servings. For small fish species, several individual fish may make up a single serving.

A poster with the safe eating advice for Los Banos Reservoir is available on OEHHA’s website in both English and Spanish. For fish species found in Los Banos Reservoir that are not included in this advisory, OEHHA recommends following the statewide advisory for eating fish from California lakes and reservoirs without site-specific advice.

Mercury is released into the environment from mining and burning coal. It accumulates in fish in the form of methylmercury, which can damage the brain and nervous system, especially in developing children and fetuses. Because of this, OEHHA provides a separate set of recommendations specifically for children up to age 17 and women of childbearing age (18 – 49 years).

Eating fish in amounts slightly greater than the advisory’s recommendations is not likely to cause health problems if it is done only occasionally, such as eating fish caught during an annual vacation.

The Los Banos Reservoir advisory joins more than 100 other OEHHA advisories that provide site-specific, health-based fish consumption advice for many of the places where people catch and eat fish in California, including lakes, rivers, bays, reservoirs, and the California coast. Advisories are available on OEHHA’s Fish Advisories web page.

OEHHA’s mission is to protect and enhance the health of Californians and our state’s environment through scientific evaluations that inform, support, and guide regulatory and other actions.

###

Fish Advisory Map

View maps of current statewide and site-specific advisories

Advisory Map

Fish, Ecotoxicology and Water Section

Sacramento Office
1001 I Street
Sacramento, CA 95814
Phone: 916-324-7572
fish@oehha.ca.gov

Sign up for our email updates