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This photo shows a shiner perch captured as part of CDFG estuary seine sample. Marine fish often enter estuaries and may sometimes spawn there. Photo courtesy of Mike Wallace, CDFG, Arcata, CA.


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Although the Klamath small-scale sucker is a native fish, it is not anadromous and therefore not common in estuary samples. Photo courtesy of Mike Wallace, CDFG, Arcata, CA.


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The prickly sculpin pictured above was captured as part of CDFG estuary sampling. A juvenile salmonid's head can also be seen at left. Photo courtesy of Mike Wallace, CDFG, Arcata, CA.


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This staghorn sculpin was collected in the Klamath estuary by the California Department of Fish and Game. Photo courtesy of Mike Wallace, CDFG, Arcata, CA.


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Starry flounders are bottom dwellers and blend well with the sandy substrate of the estuary. This species visits the estuary more frequently when freshwater flows drop later in summer. Photo courtesy of Mike Wallace, CDFG, Arcata, CA.


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A juvenile coastal cutthroat trout captured as part of CDFG estuary studies. Photo courtesy of Mike Wallace, CDFG, Arcata, CA.


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This photo shows a shiner perch captured as part of CDFG estuary seine sample. Marine fish often enter estuaries and may sometimes spawn there. Photo courtesy of Mike Wallace, CDFG, Arcata, CA.