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{
    "pk": 62884,
    "title": "Diets of Native and Non-Native Piscivores in the Stanislaus River, California, Under Contrasting Hydrologic Conditions",
    "subtitle": null,
    "abstract": "The fish communities of the Sacramento–San Joaquin Delta and its tributaries in California’s Central Valley have been irreparably altered through introductions of numerous fish species, including Striped Bass (\nMorone saxatilis\n), black bass (\nMicropterus\n spp.), and catfishes (\nAmeiurus\n spp. and \nIctalurus\n spp.). Research into how predation by non-native piscivores affects native anadromous species has focused on the Sacramento and San Joaquin river mainstems and Delta habitats, through which all anadromous species must pass. Yet, the ranges of non-native fishes extend into upstream tributaries. We collected diets from native and non-native piscivores in the Stanislaus River, a tributary to the San Joaquin River and a remaining stronghold for native fishes. Piscivorous fishes primarily consumed invertebrates and the native species fall-run Chinook Salmon (\nOncorhynchus tshawytscha\n) and Pacific Lamprey (\nEntosphenus tridentatus\n). Juvenile Chinook Salmon and Pacific Lamprey were consumed at higher frequencies than any other potential fish prey species, particularly by Striped Bass and black bass. The frequency of native fishes in predator diets was similar across years, despite contrasting hydrologic conditions; 2019 (wet year), 2020 (dry year), and 2021 (critically dry year). Our results show that Pacific Lamprey were frequently consumed by native and non-native piscivores, and that juvenile Chinook Salmon experience substantial predation early in their migration, regardless of hydrologic conditions.",
    "language": "en",
    "license": {
        "name": "Creative Commons Attribution 4.0",
        "short_name": "CC BY 4.0",
        "text": "Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.\n\nNo additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.",
        "url": "https://creativecommons.org/licenses/by/4.0"
    },
    "keywords": [
        {
            "word": "black bass, Chinook Salmon, Pacific Lamprey, Striped Bass, diet composition, introduced species"
        }
    ],
    "section": "Research Article",
    "is_remote": true,
    "remote_url": "https://escholarship.org/uc/item/0bs8737g",
    "frozenauthors": [
        {
            "first_name": "Matthew",
            "middle_name": "L.",
            "last_name": "Peterson",
            "name_suffix": "",
            "institution": "FISHBIO, Chico, CA 95928",
            "department": ""
        },
        {
            "first_name": "Tyler",
            "middle_name": "J.",
            "last_name": "Pilger",
            "name_suffix": "",
            "institution": "FISHBIO, Chico, CA 95928",
            "department": ""
        },
        {
            "first_name": "Jason",
            "middle_name": "",
            "last_name": "Guignard",
            "name_suffix": "",
            "institution": "FISHBIO, Oakdale, CA 95361",
            "department": ""
        },
        {
            "first_name": "Andrea",
            "middle_name": "",
            "last_name": "Fuller",
            "name_suffix": "",
            "institution": "FISHBIO, Oakdale, CA 95361",
            "department": ""
        },
        {
            "first_name": "Doug",
            "middle_name": "",
            "last_name": "Demko",
            "name_suffix": "",
            "institution": "FISHBIO, Chico, CA 95928",
            "department": ""
        }
    ],
    "date_submitted": "2023-12-16T00:18:27Z",
    "date_accepted": "2023-12-16T00:18:27Z",
    "date_published": "2023-12-21T08:00:00Z",
    "render_galley": null,
    "galleys": [
        {
            "label": "",
            "type": "pdf",
            "path": "https://journalpub.escholarship.org/jmie_sfews/article/62884/galley/48569/download/"
        }
    ]
}