Reduced Reproductive Success of Western Baltic Herring (Clupea harengus) as a Response to Warming Winters
Shallow estuaries, bays, and lagoons are generally considered hot spots of ocean productivity that often adjust rapidly to seasonal variations in atmospheric temperatures. During spring when biological reproductive processes begin in the temperate zones, regional climate variability can be immense a...
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doaj-6d5ba9242143467388273692dd8a9cc22021-01-25T07:58:32ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452021-01-01810.3389/fmars.2021.589242589242Reduced Reproductive Success of Western Baltic Herring (Clupea harengus) as a Response to Warming WintersPatrick Polte0Tomas Gröhsler1Paul Kotterba2Lena von Nordheim3Lena von Nordheim4Dorothee Moll5Juan Santos6Paco Rodriguez-Tress7Yury Zablotski8Christopher Zimmermann9Thünen Institute of Baltic Sea Fisheries, Rostock, GermanyThünen Institute of Baltic Sea Fisheries, Rostock, GermanyDepartment of Aquatic Ecology, University of Rostock, Rostock, GermanyThünen Institute of Baltic Sea Fisheries, Rostock, GermanyInstitute for Marine Ecosystems and Fisheries, University of Hamburg, Hamburg, GermanyThünen Institute of Baltic Sea Fisheries, Rostock, GermanyThünen Institute of Baltic Sea Fisheries, Rostock, GermanyThünen Institute of Baltic Sea Fisheries, Rostock, GermanyCentre for Clinical Veterinary Medicine, Faculty of Veterinary Medicine, Ludwig-Maximilians University, Munich, GermanyThünen Institute of Baltic Sea Fisheries, Rostock, GermanyShallow estuaries, bays, and lagoons are generally considered hot spots of ocean productivity that often adjust rapidly to seasonal variations in atmospheric temperatures. During spring when biological reproductive processes begin in the temperate zones, regional climate variability can be immense and uncovering a non-linear biological response, such as fish recruitment to changing temperature regimes might be challenging. Using herring as a paradigm for a response of coastal spring productivity to regional climate drivers, we demonstrated how the annual timing of spawning periods can significantly affect the reproductive success of spring-spawning herring (Clupea harengus) in the western Baltic Sea. An investigation of spawning phenology in consecutive years indicated a temperature threshold range of 3.5–4.5°C triggering initial spawning in the coastal zone. Based on this finding, we analyzed the timing of larval hatching peaks, larval survival and recruitment to the adult population relative to multi-decadal time-series of seasonal sea-surface temperatures. The results revealed that the late seasonal onset of cold periods the corresponding elongation of the period where larvae hatch from the eggs and early larval hatching peaks significantly reduced larval production in a coastal nursery area and finally lead to a reduced abundance of juveniles in the entire distribution area. Using a combination of field research and time series analysis, we presented precedence for shifting regional winter regimes providing a present-day stressor to reproductive capacity of a central component of the coastal food web.https://www.frontiersin.org/articles/10.3389/fmars.2021.589242/fullherring phenologyclimate changefish reproduction successClupea harengusBaltic Sea |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Patrick Polte Tomas Gröhsler Paul Kotterba Lena von Nordheim Lena von Nordheim Dorothee Moll Juan Santos Paco Rodriguez-Tress Yury Zablotski Christopher Zimmermann |
spellingShingle |
Patrick Polte Tomas Gröhsler Paul Kotterba Lena von Nordheim Lena von Nordheim Dorothee Moll Juan Santos Paco Rodriguez-Tress Yury Zablotski Christopher Zimmermann Reduced Reproductive Success of Western Baltic Herring (Clupea harengus) as a Response to Warming Winters Frontiers in Marine Science herring phenology climate change fish reproduction success Clupea harengus Baltic Sea |
author_facet |
Patrick Polte Tomas Gröhsler Paul Kotterba Lena von Nordheim Lena von Nordheim Dorothee Moll Juan Santos Paco Rodriguez-Tress Yury Zablotski Christopher Zimmermann |
author_sort |
Patrick Polte |
title |
Reduced Reproductive Success of Western Baltic Herring (Clupea harengus) as a Response to Warming Winters |
title_short |
Reduced Reproductive Success of Western Baltic Herring (Clupea harengus) as a Response to Warming Winters |
title_full |
Reduced Reproductive Success of Western Baltic Herring (Clupea harengus) as a Response to Warming Winters |
title_fullStr |
Reduced Reproductive Success of Western Baltic Herring (Clupea harengus) as a Response to Warming Winters |
title_full_unstemmed |
Reduced Reproductive Success of Western Baltic Herring (Clupea harengus) as a Response to Warming Winters |
title_sort |
reduced reproductive success of western baltic herring (clupea harengus) as a response to warming winters |
publisher |
Frontiers Media S.A. |
series |
Frontiers in Marine Science |
issn |
2296-7745 |
publishDate |
2021-01-01 |
description |
Shallow estuaries, bays, and lagoons are generally considered hot spots of ocean productivity that often adjust rapidly to seasonal variations in atmospheric temperatures. During spring when biological reproductive processes begin in the temperate zones, regional climate variability can be immense and uncovering a non-linear biological response, such as fish recruitment to changing temperature regimes might be challenging. Using herring as a paradigm for a response of coastal spring productivity to regional climate drivers, we demonstrated how the annual timing of spawning periods can significantly affect the reproductive success of spring-spawning herring (Clupea harengus) in the western Baltic Sea. An investigation of spawning phenology in consecutive years indicated a temperature threshold range of 3.5–4.5°C triggering initial spawning in the coastal zone. Based on this finding, we analyzed the timing of larval hatching peaks, larval survival and recruitment to the adult population relative to multi-decadal time-series of seasonal sea-surface temperatures. The results revealed that the late seasonal onset of cold periods the corresponding elongation of the period where larvae hatch from the eggs and early larval hatching peaks significantly reduced larval production in a coastal nursery area and finally lead to a reduced abundance of juveniles in the entire distribution area. Using a combination of field research and time series analysis, we presented precedence for shifting regional winter regimes providing a present-day stressor to reproductive capacity of a central component of the coastal food web. |
topic |
herring phenology climate change fish reproduction success Clupea harengus Baltic Sea |
url |
https://www.frontiersin.org/articles/10.3389/fmars.2021.589242/full |
work_keys_str_mv |
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