Two farm groups have joined a broad coalition that wants the state Fish and Game Commission to address the issue of non-native, predatory fish in the Sacramento-San Joaquin River Delta.

The California Farm Bureau Federation and Western Growers have teamed with water districts and conservation groups to petition the state body, asking that fishing controls for several types of bass be loosened or lifted. The groups say invasive black bass, striped bass and other predators are feeding on threatened and endangered salmon and smelt, which are native to the Delta region.