Stomach content of whitefish, Coregonus lavaretus (Actinopterygii: Salmoniformes: Salmonidae), off the Åland Islands, Baltic Sea
The Åland Islands are major feeding grounds for threatened whitefish, Coregonus lavaretus (Linnaeus, 1758), in the Gulf of Bothnia, Baltic Sea. Diet of the foraging whitefish, however, has been poorly studied in this area. In the presently reported spot-check study we analysed stomach...
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| Format: | Article |
| Language: | English |
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Pensoft Publishers
2018-03-01
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| Series: | Acta Ichthyologica et Piscatoria |
| Subjects: | |
| Online Access: | https://aiep.pensoft.net/article/26772/download/pdf/ |
| _version_ | 1818553036428017664 |
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| author | H. Hägerstrand M. Himberg L. Saks A. Verliin |
| author_facet | H. Hägerstrand M. Himberg L. Saks A. Verliin |
| author_sort | H. Hägerstrand |
| collection | DOAJ |
| description | The Åland Islands are major feeding grounds for threatened whitefish, Coregonus lavaretus (Linnaeus, 1758), in the Gulf of Bothnia, Baltic Sea. Diet of the foraging whitefish, however, has been poorly studied in this area. In the presently reported spot-check study we analysed stomach content of whitefish (n = 88), sampled by gillnets at hard bottom shallows during spring and summer (June–August) 2012. Molluscs and benthic crustaceans were the main prey items, where the rank order of abundance and biomass of food items was Theodoxus fluviatilis > Idotea spp. > Gammarus spp. > Hydrobia spp. > Mytilus trossulus > Radix spp. A shift towards T. fluviatilis was observed from June to July–August. The acquired knowledge on the diet composition could help to shed more light on the ecology of whitefish in the Baltic and may serve to indicate food web alterations due to climate variations and long-term change. |
| first_indexed | 2024-12-12T09:20:49Z |
| format | Article |
| id | doaj.art-b45ed8a79cdf4815b4d0b086776c9a05 |
| institution | Directory Open Access Journal |
| issn | 1734-1515 |
| language | English |
| last_indexed | 2024-12-12T09:20:49Z |
| publishDate | 2018-03-01 |
| publisher | Pensoft Publishers |
| record_format | Article |
| series | Acta Ichthyologica et Piscatoria |
| spelling | doaj.art-b45ed8a79cdf4815b4d0b086776c9a052022-12-22T00:29:13ZengPensoft PublishersActa Ichthyologica et Piscatoria1734-15152018-03-01481717410.3750/AIEP/0226026772Stomach content of whitefish, Coregonus lavaretus (Actinopterygii: Salmoniformes: Salmonidae), off the Åland Islands, Baltic SeaH. HägerstrandM. HimbergL. SaksA. VerliinThe Åland Islands are major feeding grounds for threatened whitefish, Coregonus lavaretus (Linnaeus, 1758), in the Gulf of Bothnia, Baltic Sea. Diet of the foraging whitefish, however, has been poorly studied in this area. In the presently reported spot-check study we analysed stomach content of whitefish (n = 88), sampled by gillnets at hard bottom shallows during spring and summer (June–August) 2012. Molluscs and benthic crustaceans were the main prey items, where the rank order of abundance and biomass of food items was Theodoxus fluviatilis > Idotea spp. > Gammarus spp. > Hydrobia spp. > Mytilus trossulus > Radix spp. A shift towards T. fluviatilis was observed from June to July–August. The acquired knowledge on the diet composition could help to shed more light on the ecology of whitefish in the Baltic and may serve to indicate food web alterations due to climate variations and long-term change.https://aiep.pensoft.net/article/26772/download/pdf/whitefishstomach contentpreyÅland Isla |
| spellingShingle | H. Hägerstrand M. Himberg L. Saks A. Verliin Stomach content of whitefish, Coregonus lavaretus (Actinopterygii: Salmoniformes: Salmonidae), off the Åland Islands, Baltic Sea Acta Ichthyologica et Piscatoria whitefish stomach content prey Åland Isla |
| title | Stomach content of whitefish, Coregonus lavaretus (Actinopterygii: Salmoniformes: Salmonidae), off the Åland Islands, Baltic Sea |
| title_full | Stomach content of whitefish, Coregonus lavaretus (Actinopterygii: Salmoniformes: Salmonidae), off the Åland Islands, Baltic Sea |
| title_fullStr | Stomach content of whitefish, Coregonus lavaretus (Actinopterygii: Salmoniformes: Salmonidae), off the Åland Islands, Baltic Sea |
| title_full_unstemmed | Stomach content of whitefish, Coregonus lavaretus (Actinopterygii: Salmoniformes: Salmonidae), off the Åland Islands, Baltic Sea |
| title_short | Stomach content of whitefish, Coregonus lavaretus (Actinopterygii: Salmoniformes: Salmonidae), off the Åland Islands, Baltic Sea |
| title_sort | stomach content of whitefish coregonus lavaretus actinopterygii salmoniformes salmonidae off the amp aring land islands baltic sea |
| topic | whitefish stomach content prey Åland Isla |
| url | https://aiep.pensoft.net/article/26772/download/pdf/ |
| work_keys_str_mv | AT hhagerstrand stomachcontentofwhitefishcoregonuslavaretusactinopterygiisalmoniformessalmonidaeofftheamparinglandislandsbalticsea AT mhimberg stomachcontentofwhitefishcoregonuslavaretusactinopterygiisalmoniformessalmonidaeofftheamparinglandislandsbalticsea AT lsaks stomachcontentofwhitefishcoregonuslavaretusactinopterygiisalmoniformessalmonidaeofftheamparinglandislandsbalticsea AT averliin stomachcontentofwhitefishcoregonuslavaretusactinopterygiisalmoniformessalmonidaeofftheamparinglandislandsbalticsea |