First steps towards mass rearing of European smelt (Osmerus eperlanus, L.) using conventional hatchery equipment
Anadromous European smelt (Osmerus eperlanus) is a keystone species in lake and river ecosystems. In the past and present, stock declines in several of its habitats have been reported. The reasons for this are unclear. Experimental research on the early life stages could help to reveal the potential...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2023-01-01
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| Series: | Aquatic Living Resources |
| Subjects: | |
| Online Access: | https://www.alr-journal.org/articles/alr/full_html/2023/01/alr220078/alr220078.html |
| _version_ | 1827828211249053696 |
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| author | Reiser Stefan Michels Timo Illing Björn |
| author_facet | Reiser Stefan Michels Timo Illing Björn |
| author_sort | Reiser Stefan |
| collection | DOAJ |
| description | Anadromous European smelt (Osmerus eperlanus) is a keystone species in lake and river ecosystems. In the past and present, stock declines in several of its habitats have been reported. The reasons for this are unclear. Experimental research on the early life stages could help to reveal the potential causes. For this purpose, knowledge on artificial propagation and rearing of early life stages is needed. Following from previous work, we show how to scale up and mass rear European smelt using conventional hatchery equipment and present a simplified protocol for first feeding. Smelt eggs, after egg adhesiveness is removed, can be incubated in standard hatchery equipment commonly used in aquaculture. Incubation in McDonald-type jars shows even improved results when settling of floating eggs is prevented. Next to avoiding egg loss this simultaneously reduces labor for daily care. First feeding of larval smelt can be achieved with decapsulated artemia cysts, eliminating the need for the labor-intensive green water production. Using the protocol presented, larvae of different stages can be produced in large quantities allowing further experimental studies. |
| first_indexed | 2024-03-12T03:46:44Z |
| format | Article |
| id | doaj.art-aa5a3b5ffb274638bcae58623733c403 |
| institution | Directory Open Access Journal |
| issn | 1765-2952 |
| language | English |
| last_indexed | 2024-03-12T03:46:44Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Aquatic Living Resources |
| spelling | doaj.art-aa5a3b5ffb274638bcae58623733c4032023-09-03T12:43:27ZengEDP SciencesAquatic Living Resources1765-29522023-01-0136810.1051/alr/2023003alr220078First steps towards mass rearing of European smelt (Osmerus eperlanus, L.) using conventional hatchery equipmentReiser Stefan0https://orcid.org/0000-0002-8231-7209Michels Timo1Illing Björn2Thünen Institute of Fisheries Ecology, Herwigstraße 31Thünen Institute of Fisheries Ecology, Herwigstraße 31Thünen Institute of Fisheries Ecology, Herwigstraße 31Anadromous European smelt (Osmerus eperlanus) is a keystone species in lake and river ecosystems. In the past and present, stock declines in several of its habitats have been reported. The reasons for this are unclear. Experimental research on the early life stages could help to reveal the potential causes. For this purpose, knowledge on artificial propagation and rearing of early life stages is needed. Following from previous work, we show how to scale up and mass rear European smelt using conventional hatchery equipment and present a simplified protocol for first feeding. Smelt eggs, after egg adhesiveness is removed, can be incubated in standard hatchery equipment commonly used in aquaculture. Incubation in McDonald-type jars shows even improved results when settling of floating eggs is prevented. Next to avoiding egg loss this simultaneously reduces labor for daily care. First feeding of larval smelt can be achieved with decapsulated artemia cysts, eliminating the need for the labor-intensive green water production. Using the protocol presented, larvae of different stages can be produced in large quantities allowing further experimental studies.https://www.alr-journal.org/articles/alr/full_html/2023/01/alr220078/alr220078.htmldelta smeltelbe riverfirst feedingfish larvaeforage fishosmeriformes |
| spellingShingle | Reiser Stefan Michels Timo Illing Björn First steps towards mass rearing of European smelt (Osmerus eperlanus, L.) using conventional hatchery equipment Aquatic Living Resources delta smelt elbe river first feeding fish larvae forage fish osmeriformes |
| title | First steps towards mass rearing of European smelt (Osmerus eperlanus, L.) using conventional hatchery equipment |
| title_full | First steps towards mass rearing of European smelt (Osmerus eperlanus, L.) using conventional hatchery equipment |
| title_fullStr | First steps towards mass rearing of European smelt (Osmerus eperlanus, L.) using conventional hatchery equipment |
| title_full_unstemmed | First steps towards mass rearing of European smelt (Osmerus eperlanus, L.) using conventional hatchery equipment |
| title_short | First steps towards mass rearing of European smelt (Osmerus eperlanus, L.) using conventional hatchery equipment |
| title_sort | first steps towards mass rearing of european smelt osmerus eperlanus l using conventional hatchery equipment |
| topic | delta smelt elbe river first feeding fish larvae forage fish osmeriformes |
| url | https://www.alr-journal.org/articles/alr/full_html/2023/01/alr220078/alr220078.html |
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