Interactive effects of temperature and salinity on shell formation and general condition in Baltic Sea Mytilus edulis and Arctica islandica

Hiebenthal, Claas; Philipp, Eva; Eisenhauer, Anton; Wahl, Martin

doi:10.3354/ab00405

Cited by 78 publications

(49 citation statements)

References 58 publications

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“…A 10-fold increase in instantaneous growth rate was observed between 1 and 12 • C, with the greatest variation occurring below 6 • C (Witbaard et al, 1997). On the contrary, a temperature increase between 4 and 16 • C was shown to produce a slowdown of shell production (Hiebenthal et al, 2012). Our results are in agreement with the latter study and show a decrease in the instantaneous growth rate between 10 and 15 • C. High temperatures are often associated with an increase of free radical production (Abele et al, 2002).…”

Section: Environmental Influence On Shell Growthmentioning

confidence: 90%

“…Previous experiments used different combinations of algae, such as Isochrysis galbana and Dunaliella marina (Witbaard et al, 1997), or Nannochloropsis oculata, Phaeodactylum tricornutum and Chlorella sp. (Hiebenthal et al, 2012) to grow the clams. However, there are still uncertainties about the composition of the primary food source for this species (Butler et al, 2010).…”

Section: Environmental Influence On Shell Growthmentioning

confidence: 99%

“…Positive correlations between shell growth and water temperature have been identified (i.e., Schöne et al, 2005;Wanamaker et al, 2009;Marali et al, 2015), but the relationship between shell growth and environment is more complex (Marchitto et al, 2010;Stott et al, 2010; and likely dependent on the synergic effect of food availability and water temperature (Butler et al, 2013;Lohmann and Schöne, 2013;Mette et al, 2016). Tank experiments were run in order to precisely identify the role of these two parameters on the shell growth of A. islandica (Witbaard et al, 1997;Hiebenthal et al, 2012). A 10-fold increase in instantaneous growth rate was observed between 1 and 12 • C, with the greatest variation occurring below 6 • C (Witbaard et al, 1997).…”

Section: Environmental Influence On Shell Growthmentioning

confidence: 99%

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The effects of environment on Arctica islandica shell formation and architecture

et al. 2017

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Abstract. Mollusks record valuable information in their hard parts that reflect ambient environmental conditions. For this reason, shells can serve as excellent archives to reconstruct past climate and environmental variability. However, animal physiology and biomineralization, which are often poorly understood, can make the decoding of environmental signals a challenging task. Many of the routinely used shell-based proxies are sensitive to multiple different environmental and physiological variables. Therefore, the identification and interpretation of individual environmental signals (e.g., water temperature) often is particularly difficult. Additional proxies not influenced by multiple environmental variables or animal physiology would be a great asset in the field of paleoclimatology. The aim of this study is to investigate the potential use of structural properties of Arctica islandica shells as an environmental proxy. A total of 11 specimens were analyzed to study if changes of the microstructural organization of this marine bivalve are related to environmental conditions. In order to limit the interference of multiple parameters, the samples were cultured under controlled conditions. Three specimens presented here were grown at two different water temperatures (10 and 15 • C) for multiple weeks and exposed only to ambient food conditions. An additional eight specimens were reared under three different dietary regimes. Shell material was analyzed with two techniques; (1) confocal Raman microscopy (CRM) was used to quantify changes of the orientation of microstructural units and pigment distribution, and (2) scanning electron microscopy (SEM) was used to detect changes in microstructural organization. Our results indicate that A. islandica microstructure is not sensitive to changes in the food source and, likely, shell pigment are not altered by diet. However, seawater temperature had a statistically significant effect on the orientation of the biomineral. Although additional work is required, the results presented here suggest that the crystallographic orientation of biomineral units of A. islandica may serve as an alternative and independent proxy for seawater temperature.

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Section: Environmental Influence On Shell Growthmentioning

confidence: 90%

Section: Environmental Influence On Shell Growthmentioning

confidence: 99%

Section: Environmental Influence On Shell Growthmentioning

confidence: 99%

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The effects of environment on Arctica islandica shell formation and architecture

et al. 2017

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“…Further, Almada-Villela [5] studied the long term (38 d) effect on shell growth of different lowered salinities, and found that growth was significantly depressed at 6.4 and 16 psu, but not at 22.4 psu. Likewise, Hiebenthal et al [14] recently found that M. edulis performed best at 25 psu and further that temperature effects may interact with salinity effects. However, acclimation to reduced salinities may take place [3,4,9,[15][16][17], but due to shell valve closure and reduced filtration rate in the acclimation period, the resulting temporarily reduced growth may blur the actual ability of mussels to grow more or less unrestrained at low salinities, possibly down to 10 psu as studied in the present work.…”

Section: Introductionmentioning

confidence: 99%

Effect of Salinity on Growth of Mussels, Mytilus edulis, with Special Reference to Great Belt (Denmark)

Riisgård¹,

Bøttiger²,

Pleißner³

2012

OJMS

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The effects of salinities between 10 and 30 psu on the growth of blue mussels, Mytilus edulis, were studied in laboratory feeding experiments and compared to the growth of mussels suspended in net-bags in the brackish water Great Belt, Denmark. In the laboratory, 3 series of growth experiments were conducted: in Series #1, groups of mussels were exposed to 10, 15, 25 and 30 psu, in Series #2, two groups of mussels were exposed to 10 and 30 psu, respectively, for 15 days (first period) where upon the mussels were exposed to the reversed salinities for another 15 days (second period). In Series #3, two groups of mussels were initially exposed to 15 and 25 psu for 22 days whereupon the mussel groups were exposed to the reversed salinities for another 17 days. In the laboratory experiments there was a tendency towards reduced growth with decreasing salinity, reflected as reduced shell growth rate and decreasing weight specific growth rate with falling salinity. The shell growth rate was relatively low in the first feeding period compared to the second period, and mussels that were initially exposed to 10 psu, where the growth was low, exhibited fast growth when subsequently exposed to 30 psu, and reversed when 30 psu mussels were exposed to 10 psu. The study showed that mussels are able to adjust growth at changing salinities, and the observed effect of salinity could partly be explained by a temporary shell valve closure after a sudden change in salinity. The specific growth rate of mussels measured in laboratory experiments at salinities between 15 to 25 psu (4.2% to 4.8% d -1 ) were comparable to the growth of mussels in the field experiment (3.2% to 4.0% d -1 ) where the salinity varied between 24 and 13 psu during the growth period.

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“…Surprisingly, A. islandica from IC showed no specific strategy according to the telomere dynamics as compared to the BS individuals which is remarkable in light of the 10-fold difference in maximum lifespan between the two populations (BS: MLSP 40 years, IC: MLSP N500 years). As mentioned above, however, no sign of ageing has been found in this species and the short lifespan of A. islandica in the BS may rather be attributed to poor shell formation in a low salinity environment (Begum et al, 2010;Hiebenthal et al, 2012). Moreover, compared to the highly stable marine IC habitat the brackish BS environment is highly fluctuating not only in respect to salinity but also in ionic compositions of the water body, water temperature, oxygen content and nutrient concentrations which implies a general more stressful habitat and an impact on telomere dynamics as hypothesized by others (Hall et al, 2004;Horn et al, 2008;Jennings et al, 2000).…”

Section: Discussionmentioning

confidence: 99%

Telomere-independent ageing in the longest-lived non-colonial animal, Arctica islandica

Gruber

Schaible

Ridgway

et al. 2014

Experimental Gerontology

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The shortening of telomeres as a causative factor in ageing is a widely discussed hypothesis in ageing research. The study of telomere length and its regenerating enzyme telomerase in the longest-lived non-colonial animal on earth, Arctica islandica, should inform whether the maintenance of telomere length plays a role in reaching the extreme maximum lifespan (MLSP) of N500 years in this species. Since longitudinal measurements on living animals cannot be achieved, a cross-sectional analysis of a short-lived (MLSP 40 years from the Baltic Sea) and a long-lived population (MLSP 226 years Northeast of Iceland) and in different tissues of young and old animals from the Irish Sea was performed. A high heterogeneity of telomere length was observed in investigated A. islandica over a wide age range (10-36 years for the Baltic Sea, 11-194 years for Irish Sea, 6-226 years for Iceland). Constant telomerase activity and telomere lengths were detected at any age and in different tissues; neither correlated with age or population habitat. Stable telomere maintenance might contribute to the long lifespan of A. islandica. Telomere dynamics are no explanation for the distinct MLSPs of the examined populations and thus the cause of it remains to be investigated.

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Interactive effects of temperature and salinity on shell formation and general condition in Baltic Sea Mytilus edulis and Arctica islandica

Cited by 78 publications

References 58 publications

The effects of environment on <i>Arctica islandica</i> shell formation and architecture

The effects of environment on <i>Arctica islandica</i> shell formation and architecture

Effect of Salinity on Growth of Mussels, <i>Mytilus edulis</i>, with Special Reference to Great Belt (Denmark)

Telomere-independent ageing in the longest-lived non-colonial animal, Arctica islandica

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Interactive effects of temperature and salinity on shell formation and general condition in Baltic Sea Mytilus edulis and Arctica islandica

Cited by 78 publications

References 58 publications

The effects of environment on &lt;i&gt;Arctica islandica&lt;/i&gt; shell formation and architecture

The effects of environment on &lt;i&gt;Arctica islandica&lt;/i&gt; shell formation and architecture

Effect of Salinity on Growth of Mussels, &lt;i&gt;Mytilus edulis&lt;/i&gt;, with Special Reference to Great Belt (Denmark)

Telomere-independent ageing in the longest-lived non-colonial animal, Arctica islandica

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Product

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The effects of environment on <i>Arctica islandica</i> shell formation and architecture

The effects of environment on <i>Arctica islandica</i> shell formation and architecture

Effect of Salinity on Growth of Mussels, <i>Mytilus edulis</i>, with Special Reference to Great Belt (Denmark)