Growth in length of Mytilus edulis L. fed on different algal diets

Strömgren, Tor; Cary, S. Craig

doi:10.1016/0022-0981(84)90014-5

Cited by 43 publications

(17 citation statements)

References 18 publications

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“…The growth rates of Lucinoma aequizonata are extremely slow when compared to Mytilus edulis fed natural phytoplankton (Stromgren & Cary 1984) or to mussels that contain methylotrophic endosymbiotic bacteria, fed only methane (Cary et al 1988). However, the conditions under which the clams in this study were held were far from optimal and the growth rates should not be considered to represent in situ rates.…”

Section: Effects Sulfide Concentrations In the Blood And Mantlementioning

confidence: 84%

“…the glycogen reserve). In addition, the growth rates of selected individuals were monitored using a highly accurate laser diffraction measuring device (Stromgren & Cary 1984). The effects of sulfide on the symbionts was determined by monitoring the elemental sulfur content of the gills, which is thought to be a n index of bacterial condition (Vetter 1985).…”

Section: Methodsmentioning

confidence: 99%

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Habitat characterization and nutritional strategies of the endosymbiont-bearing bivalve Lucinoma aequizonata

Cary¹,

Vetter²,

Felbeck³

1989

Mar. Ecol. Prog. Ser.

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A population of the lucinid bivalve Lucinorna aequizonata, with sulfur-oxidizing endosymbiotic bacteria in the gills, is restricted to a narrow depth range (500 -f-10m) on the slope of the Santa Barbara Basin, California, USA. In this zone, the seawater just above the substratum is sub-oxic ( [ 0 2 ] < 2 0 F M ) . The organically rich sediments in which these clams live are well mixed by bioturbation, which appears to maintain a redox condition Limiting the extensive accumulation of hydrogen sulfide. However, thiol levels in the blood of the clams indicate an exposure to significant amounts of sulfide and/or thiosulfate apparently from randomly &spersed short-lived pockets of sulfidic mud that can b e reached by the clam's burrowing vermiform foot. When the bivalves are incubated in the presence of hydrogen sulfide, thiosulfate is concentrated in the blood and apparently utilized by the bacteria for metabohc energy and the production of intracellular elemental sulfur. Laboratory growth experiments demonstrated that sulfide concentrations greater than 10 F M were detrimental to the host, even though the bacteria continued to accumulate elemental sulfur. The utilization of thiosulfate under near anaerobic conditions and the accumulation of intracellular elemental sulfur by the endosymbiotic bacteria coupled with the high availability of environmental nitrate and low molecular oxygen suggests a metabolic strategy analogous to the free-living sulfur oxidizer Thlobacillus denjtrificans. The 6 ' 3~ values of the purified endosymbiont bacteria (-34.0 5 0.8%) were significantly lighter than those of the host tissue (-29.0 + 0.7 %) suggesting that in addition to the nutrition provided by the bacteria, over 25 % of the host carbon may b e attributed to exogenous dissolved carbon which is in high concentrations in its natural habitat.

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Section: Effects Sulfide Concentrations In the Blood And Mantlementioning

confidence: 84%

Section: Methodsmentioning

confidence: 99%

Habitat characterization and nutritional strategies of the endosymbiont-bearing bivalve Lucinoma aequizonata

Cary¹,

Vetter²,

Felbeck³

1989

Mar. Ecol. Prog. Ser.

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“…Depending on the amount of reserves, the change in volume will be small for animals not far from maximum size. Strömgren and Cary [899] found that mussels in the range of 12-22 mm grew 0.75 mm. If the change in size is neglected, the scaled reserve density changes as e(τ ) = e(0) exp{−gτ /l} and the growth of scaled length is …”

Section: Mild Starvationmentioning

confidence: 99%

Dynamic Energy and Mass Budgets in Biological Systems

Kooijman

2000

794

1,202

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second editionDynamic Energy Budget theory unifies the commonalities between organisms as prescribed by the implications of energetics, which link different levels of biological organization (cells, organisms and populations). The theory presents simple mechanistic rules that describe the uptake and use of energy and nutrients and the consequences for physiological organization throughout an organism's life cycle, including the relationships between energetics and aging and the effects of toxicants. In this new edition, the theory is broadened to encompass the fluxes of both energy and mass. All living organisms are now covered in a single quantitative framework, the predictions of which are tested against a wide variety of experimental results at the various levels of biological organization. The theory explains many general observations, such as the body size scaling relationships of certain physiological traits, and provides a theoretical basis for the widely used method of indirect calorimetry. In each case, the theory is developed in elementary mathematical terms, but a more detailed discussion of the methodological aspects of mathematical modelling is also included, making the book suitable for biologists and mathematicians with a broad interest in both fundamental and applied quantitative problems in biology.Bas Kooijman is Professor of Applied Theoretical Biology at the Vrije Universiteit in Amsterdam and is also head of the University's Department of Theoretical Biology. His research focuses on mathematical biology, in particular ecotoxicology which provided the framework for the original version of his Dynamic Energy Budget theory published in 1993 (Dynamic Energy Budgets in Biological Systems -Theory and Applications in Ecotoxicology). From the first edition:"This book is an excellent scientific product that informs and forces contemplation of issues relating to population and community ecology. The author has made a complex subject coherent." Thomas G. Hallam, Bulletin of Mathematical Biology "... a very useful and general tool to select more ecologically sound process equations and parameters in ecological models." Sven Erik Jørgensen, Ecological Modelling "The author has made a significant contribution to the problem of modelling the dynamics of biological populations at the level of the individual by synthesizing this very complicated subject into a relatively short list of general assumptions and putting the energetics of sub-models for vital rates on a solid basis." Jim Cushing, Mathematical Biosciences "The family of idealized models offered in this book is capable of playing a role analogous to that of Lotka-Volterra models in population dynamics ... I am confident that any model(s) capable of occupying this niche will be strongly influenced by the ideas in this book." Roger Nisbet, Ecology 9 LIVING TOGETHER Interaction between organisms: The spectrum from competition to preypredator systems. Evaluation of the consequences of the DEB model for population dynamics, food chains, and communities....

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“…Our results are in good agreement with previous findings. For instance, it has been shown by Strömgren and Cary (1984) that Mytilus edulis shell growth increased as a result of a diet based on three different algal species. Furthermore, Epifanio (1979) tested the differences on the growth of Crasssostrea virginica and Mercenaria mercenaria of a mixed diet composed by Isochrysis galbana and Thalassiosira pseudonana and diets consisting of the single species.…”

Section: Environmental Influence On Shell Growthmentioning

confidence: 99%

The effects of environment on <i>Arctica islandica</i> 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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Growth in length of Mytilus edulis L. fed on different algal diets

Cited by 43 publications

References 18 publications

Habitat characterization and nutritional strategies of the endosymbiont-bearing bivalve Lucinoma aequizonata

Habitat characterization and nutritional strategies of the endosymbiont-bearing bivalve Lucinoma aequizonata

Dynamic Energy and Mass Budgets in Biological Systems

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

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Growth in length of Mytilus edulis L. fed on different algal diets

Cited by 43 publications

References 18 publications

Habitat characterization and nutritional strategies of the endosymbiont-bearing bivalve Lucinoma aequizonata

Habitat characterization and nutritional strategies of the endosymbiont-bearing bivalve Lucinoma aequizonata

Dynamic Energy and Mass Budgets in Biological Systems

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

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