page_title: Sterlet
section_title: Feeding habits
hierarchical_section_title: Sterlet / Feeding habits
caption_attribution_description: English: Fish Sterlet on exhibition Subaqueous Vltava, Prague 2011, Czech Republic Čeština: Jeseter malý, (Acipenser ruthenus) na výstavě Pod hladinou Vltavy, Palác Kinských, Staroměstské náměstí, Praha 2011
context_page_description: The sterlet is a relatively small species of sturgeon from Eurasia native to large rivers that flow into the Black Sea, Azov Sea, and Caspian Sea, as well as rivers in Siberia as far east as Yenisei. Populations migrating between fresh and salt water have been extirpated.
  Due to overfishing, pollution, and dams, the sterlet has declined throughout its native range and is considered vulnerable by the IUCN. Restocking projects are ongoing, and it has been introduced to some regions outside its native range, but the latter have generally not become self-sustaining. Today, the majority of the international trade involves sterlets from aquaculture.
context_section_description: The sterlet's main source of food is benthic organisms; they commonly feed on crustaceans, worms, and insect larvae.
caption: On exhibition Subaqueous Vltava, Prague
exif: {"Image Make": "Canon", "Image Model": "Canon EOS 60D", "Image Orientation": "Horizontal (normal)", "Image XResolution": "72", "Image YResolution": "72", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "Adobe Photoshop CS Windows", "Image DateTime": "2011:03:27 21:43:58", "Image YCbCrPositioning": "Co-sited", "Image ExifOffset": "220", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "1322", "Thumbnail JPEGInterchangeFormatLength": "7076", "EXIF ExposureTime": "1/60", "EXIF FNumber": "4", "EXIF ExposureProgram": "Portrait Mode", "EXIF ISOSpeedRatings": "400", "EXIF SensitivityType": "Recommended Exposure Index", "EXIF RecommendedExposureIndex": "400", "EXIF ExifVersion": "0230", "EXIF DateTimeOriginal": "2011:03:18 15:25:07", "EXIF DateTimeDigitized": "2011:03:18 15:25:07", "EXIF ComponentsConfiguration": "YCbCr", "EXIF ShutterSpeedValue": "6", "EXIF ApertureValue": "4", "EXIF ExposureBiasValue": "0", "EXIF MeteringMode": "Pattern", "EXIF Flash": "Flash fired, compulsory flash mode", "EXIF FocalLength": "28", "EXIF SubSecTime": "07", "EXIF SubSecTimeOriginal": "07", "EXIF SubSecTimeDigitized": "07", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "2400", "EXIF ExifImageLength": "1600", "Interoperability InteroperabilityIndex": "R98", "Interoperability InteroperabilityVersion": "[48, 49, 48, 48]", "EXIF InteroperabilityOffset": "1196", "EXIF FocalPlaneXResolution": "1036800/181", "EXIF FocalPlaneYResolution": "691200/119", "EXIF FocalPlaneResolutionUnit": "2", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Auto", "EXIF SceneCaptureType": "Standard", "EXIF CameraOwnerName": "", "EXIF BodySerialNumber": "0480266787", "EXIF LensSpecification": "[18, 55, 0/0, 0/0]", "EXIF LensModel": "EF-S18-55mm f/3.5-5.6", "EXIF LensSerialNumber": "0000000000"}