What is left? Macrophyte meadows and Atlantic herring (Clupea harengus) spawning sites in the Greifswalder Bodden, Baltic Sea

Kanstinger, Philipp; Beher, Jutta; Grenzdörffer, Görres; Hammer, Cornelius; Huebert, Klaus B.; Stepputis, Daniel; Peck, Myron A.

doi:10.1016/j.ecss.2016.03.004

Cited by 29 publications

(41 citation statements)

References 33 publications

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“…Despite their extensive migrations, some herring populations have been documented to return to their natal spawning grounds (Ruzzante et al 2006) to maximise larval retention on the spawning grounds at the early life history stages (Sinclair & Power 2015). Within the Baltic Sea, decreasing salinities as a consequence of climate-driven changes (Meier et al 2006, Vuorinen et al 2015 or the loss of spawning substrate due to anthropogenic alterations of coastal spawning sites (Kanstinger et al 2018) can force herring to alter their spawning grounds (Illing et al 2016). Further, habitat degradation and the loss of structural complexity of spawning substrates can result in higher egg mortality (von Nordheim et al 2017).…”

Section: Discussionmentioning

confidence: 99%

Genetic origin and salinity history influence the reproductive success of Atlantic herring

Berg¹,

Slotte²,

Andersson³

et al. 2019

Mar. Ecol. Prog. Ser.

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Atlantic herring populations inhabit environments ranging in salinity from fully marine to nearly freshwater, but their relative reproductive success in these respective environments remains unclear. We conducted factorial crossing experiments using parents from 3 wild populations associated with different salinity environments: the Baltic Sea (~6 psu), an inland brackish lake in Norway (Landvikvannet, ~16 psu), and the Atlantic (~30 to 35 psu). Further experiments used crosses within and between Atlantic purebreds and Atlantic/Baltic hybrids reared until first maturity at 3 yr of age. Crossing experiments were conducted at 6, 16 and 35 psu. Fertilization and hatching rates were estimated, and egg sizes were measured. Fertilization rates were highest at 16 psu for all combinations. The paternal genetic and salinity origin influenced fertilization rates at 6 and 35 psu, indicating a genetic adaptation to their original environment. Fertilization rates for males originating from 16 psu were low at 35 psu. Atlantic/Baltic hybrids had lower fertilization rates than Atlantic purebreds at 35 psu. Hatching rates were not influenced by any parental factors or salinity. Maternal effects and salinity influenced egg size. Atlantic females had significantly larger eggs than the Atlantic/Baltic hybrid females. For all genetic groups, egg size decreased with increasing salinity at incubation mainly due to osmotic effects. The observed lower fertilization success at salinities other than those of the parental fish habitat would have evolutionary consequences when herring colonize new habitats with different salinities or if interbreeding occurred between populations originating from different salinity habitats.

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Section: Discussionmentioning

confidence: 99%

Genetic origin and salinity history influence the reproductive success of Atlantic herring

Berg¹,

Slotte²,

Andersson³

et al. 2019

Mar. Ecol. Prog. Ser.

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“…This area encompasses distinct sub‐areas with homogenous water depths (0.8–1.2 m) and equal SAV compositions and coverages. Since spawning intensity is mainly driven by the availability of spawning substrate such as SAV (Kanstinger et al ), we assumed our experiment to be representative for the entire spawning bed.…”

Section: Methodsmentioning

confidence: 99%

“…This area encompasses distinct sub-areas with homogenous water depths (0.8-1.2 m) and equal SAV compositions and coverages. Since spawning intensity is mainly driven by the availability of spawning substrate such as SAV (Kanstinger et al 2016), we assumed our experiment to be representative for the entire spawning bed. Data on spatial herring egg distribution in spring 2014 were used as additional information on the suitability of the chosen experimental site to represent a valid spawning ground.…”

Section: Data Analysesmentioning

confidence: 99%

Predation on Atlantic herring (Clupea harengus) eggs by the resident predator community in coastal transitional waters

Kotterba

Moll²,

Hammer

et al. 2017

Limnology & Oceanography

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Atlantic herring (Clupea harengus) migrates from offshore to coastal areas to spawn and their eggs and larvae may substantially increase prey resources for resident predators. We combined an in situ predator exclusion experiment using eggs naturally spawned on submerged aquatic vegetation and field observations of predator abundance to estimate the magnitude of predation mortality of herring eggs. During our predator exclusion experiment, performed in an important spawning ground in the southwest Baltic Sea, 20% of the herring eggs were consumed resulting in an extrapolated predation of 42% of all eggs between spawning and hatch. Abundance and stomach content analyses indicated that one predator (threespine stickleback, Gasterosteus aculeatus) was responsible for the majority of the predation impact. Predation mortality estimates from this in situ study were more than 10-fold higher than those of an empirical egg predation model for the same predator in the same region. Our findings highlight the potential of resident predators to regulate the survival of early life stages of ocean-going fishes that rely on the nursery functions of inshore transitional waters.

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“…One hypothesis for the decline of the stock was that macrophytes as spawning substrate had declined and caused recruitment decline (Scabell ), as documented in the 1930s for the coastal spring‐spawning herring population on the Dutch coast (Wolff ). However, no explicit decrease in macrophyte cover was recorded in the GWB during the period of reduced herring recruitment (Kanstinger et al ). Therefore, an exclusive effect of spawning bed extent on recruitment dynamics seems unlikely.…”

mentioning

confidence: 99%

Environmental determinants of larval herring (Clupea harengus) abundance and distribution in the western Baltic Sea

Dodson

Daigle

Hammer

et al. 2018

Limnology & Oceanography

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The analysis of the abundance and distribution of the early life‐history stages of the western Baltic spring‐spawning herring population, spanning 23 yr, revealed that the abundance of yolk‐sac larvae was strongly spatially structured and significantly more abundant during the optimal temperature window for viable hatch of herring larvae (9°C to 13°C). The percentage of time encompassing this optimal temperature window exhibited a major contraction between 1995 and 2000 that may have contributed to reducing the supply of yolk‐sac larvae and ultimately contributed to reducing recruitment observed after 2000. Temperature also significantly influenced the abundance of preflexion and flexion larvae, defining dome‐shaped responses with maximum abundances observed between 10.27°C and 13.43°C and between 13.68°C and 18.53°C, respectively. The abundances of postflexion stage larvae were greatest at temperatures exceeding 14°C with no apparent decline in abundance at temperatures of up to 20°C. Temperature also played a significant role in influencing the abundance of larvae through its interaction with the abundance of the preceding developmental stage and provided evidence of stage‐specific temperature‐related mortality. There was also evidence of reduced survival during the preflexion–flexion transition in cohorts produced early in the season relative to those cohorts produced later. Although phenologically plastic species such as herring may be able to alter the dates of spawning, thus partially mitigating the effects of increasing rates of spring warming, constriction of the temperature windows for successful hatching and subsequent ontogenetic development may not be so easily mitigated by changes in phenology.

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What is left? Macrophyte meadows and Atlantic herring (Clupea harengus) spawning sites in the Greifswalder Bodden, Baltic Sea

Abstract: What is left? Macrophyte meadows and Atlantic herring (Clupea harengus) spawning sites in the Greifswalder Bodden, Baltic Sea

Cited by 29 publications

References 33 publications

Genetic origin and salinity history influence the reproductive success of Atlantic herring

Genetic origin and salinity history influence the reproductive success of Atlantic herring

Predation on Atlantic herring (Clupea harengus) eggs by the resident predator community in coastal transitional waters

Environmental determinants of larval herring (Clupea harengus) abundance and distribution in the western Baltic Sea

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