The influence of different salinity conditions on egg buoyancy and development and yolk sac larval survival and morphometric traits of Baltic Sea sprat (Sprattus sprattus balticus Schneider)
The small pelagic sprat (Sprattus sprattus) is a key ecologic player in the Baltic Sea. However, there is long-term variability in recruitment which is thought to be influenced by fluctuations in abiotic and biotic conditions experienced during the early life stages. This study concentrates on the i...
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| Format: | Article |
| Language: | English |
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Consejo Superior de Investigaciones Científicas
2009-10-01
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| Series: | Scientia Marina |
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| Online Access: | http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1109 |
| _version_ | 1818938936844615680 |
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| author | Christoph Petereit Hans Harald Hinrichsen Rüdiger Voss Gerd Kraus Marko Freese Catriona Clemmesen |
| author_facet | Christoph Petereit Hans Harald Hinrichsen Rüdiger Voss Gerd Kraus Marko Freese Catriona Clemmesen |
| author_sort | Christoph Petereit |
| collection | DOAJ |
| description | The small pelagic sprat (Sprattus sprattus) is a key ecologic player in the Baltic Sea. However, there is long-term variability in recruitment which is thought to be influenced by fluctuations in abiotic and biotic conditions experienced during the early life stages. This study concentrates on the influence of different ambient salinities on sprat egg development, egg buoyancy and survival as well as early yolk sac larval morphometric traits. Egg buoyancy significantly decreased with increasing salinity experienced during fertilization and/or incubation experiments. Field egg buoyancy measurements in 2007 and 2008 exhibited annual and seasonal differences in specific gravity, potentially associated with changes in adult sprat vertical distribution. Neither egg development time nor the duration of the yolk sac phase differed among salinity treatments. At eye pigmentation, larval standard length exhibited high variance among individuals but did not differ among treatments. The largest ecological impact of salinity experienced during spawning was the modification the buoyancy of eggs and yolk sac larvae, which determines their vertical habitat in the Baltic Sea. There are strong thermo- and oxyclines in the Baltic Sea, and thus salinity can indirectly impact the survival of these early life stages by modifying the ambient temperatures and oxygen conditions experienced. |
| first_indexed | 2024-12-20T06:15:47Z |
| format | Article |
| id | doaj.art-12583207ce5d4a5aade94221aec9663b |
| institution | Directory Open Access Journal |
| issn | 0214-8358 1886-8134 |
| language | English |
| last_indexed | 2024-12-20T06:15:47Z |
| publishDate | 2009-10-01 |
| publisher | Consejo Superior de Investigaciones Científicas |
| record_format | Article |
| series | Scientia Marina |
| spelling | doaj.art-12583207ce5d4a5aade94221aec9663b2022-12-21T19:50:32ZengConsejo Superior de Investigaciones CientíficasScientia Marina0214-83581886-81342009-10-0173S1597210.3989/scimar.2009.73s10591099The influence of different salinity conditions on egg buoyancy and development and yolk sac larval survival and morphometric traits of Baltic Sea sprat (Sprattus sprattus balticus Schneider)Christoph Petereit0Hans Harald Hinrichsen1Rüdiger Voss2Gerd Kraus3Marko Freese4Catriona Clemmesen5Leibniz Institute of Marine Sciences (IFM-GEOMAR)Leibniz Institute of Marine Sciences (IFM-GEOMAR)Sustainable Fisheries, Department of Economics, University of KielInstitute of Sea Fisheries, Johann Heinrich von Thünen-Institut, Federal Research Institute for Rural AreasLeibniz Institute of Marine Sciences (IFM-GEOMAR)Leibniz Institute of Marine Sciences (IFM-GEOMAR)The small pelagic sprat (Sprattus sprattus) is a key ecologic player in the Baltic Sea. However, there is long-term variability in recruitment which is thought to be influenced by fluctuations in abiotic and biotic conditions experienced during the early life stages. This study concentrates on the influence of different ambient salinities on sprat egg development, egg buoyancy and survival as well as early yolk sac larval morphometric traits. Egg buoyancy significantly decreased with increasing salinity experienced during fertilization and/or incubation experiments. Field egg buoyancy measurements in 2007 and 2008 exhibited annual and seasonal differences in specific gravity, potentially associated with changes in adult sprat vertical distribution. Neither egg development time nor the duration of the yolk sac phase differed among salinity treatments. At eye pigmentation, larval standard length exhibited high variance among individuals but did not differ among treatments. The largest ecological impact of salinity experienced during spawning was the modification the buoyancy of eggs and yolk sac larvae, which determines their vertical habitat in the Baltic Sea. There are strong thermo- and oxyclines in the Baltic Sea, and thus salinity can indirectly impact the survival of these early life stages by modifying the ambient temperatures and oxygen conditions experienced.http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1109clupeidsvertical distributionspecific gravitydriftrecruitmentspawning stockadult fish |
| spellingShingle | Christoph Petereit Hans Harald Hinrichsen Rüdiger Voss Gerd Kraus Marko Freese Catriona Clemmesen The influence of different salinity conditions on egg buoyancy and development and yolk sac larval survival and morphometric traits of Baltic Sea sprat (Sprattus sprattus balticus Schneider) Scientia Marina clupeids vertical distribution specific gravity drift recruitment spawning stock adult fish |
| title | The influence of different salinity conditions on egg buoyancy and development and yolk sac larval survival and morphometric traits of Baltic Sea sprat (Sprattus sprattus balticus Schneider) |
| title_full | The influence of different salinity conditions on egg buoyancy and development and yolk sac larval survival and morphometric traits of Baltic Sea sprat (Sprattus sprattus balticus Schneider) |
| title_fullStr | The influence of different salinity conditions on egg buoyancy and development and yolk sac larval survival and morphometric traits of Baltic Sea sprat (Sprattus sprattus balticus Schneider) |
| title_full_unstemmed | The influence of different salinity conditions on egg buoyancy and development and yolk sac larval survival and morphometric traits of Baltic Sea sprat (Sprattus sprattus balticus Schneider) |
| title_short | The influence of different salinity conditions on egg buoyancy and development and yolk sac larval survival and morphometric traits of Baltic Sea sprat (Sprattus sprattus balticus Schneider) |
| title_sort | influence of different salinity conditions on egg buoyancy and development and yolk sac larval survival and morphometric traits of baltic sea sprat sprattus sprattus balticus schneider |
| topic | clupeids vertical distribution specific gravity drift recruitment spawning stock adult fish |
| url | http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1109 |
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