Biology of the California sea‐mussel (Mytilus californianus). II. Nutrition, metabolism, growth and calcium deposition

Fox, Denis L.; Coe, Wesley R.

doi:10.1002/jez.1400930204

Cited by 94 publications

(39 citation statements)

References 17 publications

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“…[10]), food availability [11] and predation pressure [12,13], some of which can interact, either counteracting the effects of changing seawater saturation state [11] or exacerbating them [3]. All of these factors probably contribute to how a species modulates calcification internally (e.g.…”

Section: Introductionmentioning

confidence: 99%

Historical baselines and the future of shell calcification for a foundation species in a changing ocean

et al. 2016

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Seawater pH and the availability of carbonate ions are decreasing due to anthropogenic carbon dioxide emissions, posing challenges for calcifying marine species. Marine mussels are of particular concern given their role as foundation species worldwide. Here, we document shell growth and calcification patterns in Mytilus californianus, the California mussel, over millennial and decadal scales. By comparing shell thickness across the largest modern shells, the largest mussels collected in the 1960s-1970s and shells from two Native American midden sites ( 1000-2420 years BP), we found that modern shells are thinner overall, thinner per age category and thinner per unit length. Thus, the largest individuals of this species are calcifying less now than in the past. Comparisons of shell thickness in smaller individuals over the past 10-40 years, however, do not show significant shell thinning. Given our sampling strategy, these results are unlikely to simply reflect within-site variability or preservation effects. Review of environmental and biotic drivers known to affect shell calcification suggests declining ocean pH as a likely explanation for the observed shell thinning. Further future decreases in shell thickness could have significant negative impacts on M. californianus survival and, in turn, negatively impact the species-rich complex that occupies mussel beds.

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Section: Introductionmentioning

confidence: 99%

Historical baselines and the future of shell calcification for a foundation species in a changing ocean

et al. 2016

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“…Seed, 1968) and water motion (i.e. velocity, wave impact, turbulence) (Aguirre et al, 2006; Fox and Plasticity of quagga mussel morphology Coe, 1943;Selin and Vekhova, 2003;Steffani and Branch, 2003) have been thought to affect shell morphology and growth of molluscs (e.g. Brachidontes sp., L. obtusata, Mytilus edulis, M.…”

Section: Introductionmentioning

confidence: 99%

Developmental plasticity of shell morphology of quagga mussels from shallow and deep-water habitats of the Great Lakes

Peyer

Hermanson

Lee

2010

Journal of Experimental Biology

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SUMMARYThe invasive zebra mussel (Dreissena polymorpha) has quickly colonized shallow-water habitats in the North American Great Lakes since the 1980s but the quagga mussel (Dreissena bugensis) is becoming dominant in both shallow and deep-water habitats. While quagga mussel shell morphology differs between shallow and deep habitats, functional causes and consequences of such difference are unknown. We examined whether quagga mussel shell morphology could be induced by three environmental variables through developmental plasticity. We predicted that shallow-water conditions (high temperature, food quantity, water motion) would yield a morphotype typical of wild quagga mussels from shallow habitats, while deep-water conditions (low temperature, food quantity, water motion) would yield a morphotype present in deep habitats. We tested this prediction by examining shell morphology and growth rate of quagga mussels collected from shallow and deep habitats and reared under common-garden treatments that manipulated the three variables. Shell morphology was quantified using the polar moment of inertia. Of the variables tested, temperature had the greatest effect on shell morphology. Higher temperature (~18-20°C) yielded a morphotype typical of wild shallow mussels regardless of the levels of food quantity or water motion. In contrast, lower temperature (~6-8°C) yielded a morphotype approaching that of wild deep mussels. If shell morphology has functional consequences in particular habitats, a plastic response might confer quagga mussels with a greater ability than zebra mussels to colonize a wider range of habitats within the Great Lakes.

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“…However, investigation of food availability in natural seawater has shown that phytoplankton cells are seldom present MATERIALS AND METHODS in sufficient numbers to contribute significantly to the mussels' diet. Authors such as Fox and Coe (1943), Choromytilus meridionalis (Kr.) (45 mm shell length) Jerrgensen (1955) and Widdows et al (1979) have and seawater were sampled at Bailey's Cottage, False shown that particulate organic matter is the major food Bay, South Africa (34" 06's 18" 28'E).…”

Section: Introductionmentioning

confidence: 99%

Natural Food Availability and Assimilation in the Bivalve Choromytilus meridionalis

Griffith¹

1980

Mar. Ecol. Prog. Ser.

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Samples of seawater overlying a bed of the mussel Chorornytilus meridionalis (Kr.) at Bailey's Cottage, False Bay, South Africa, were analysed for organic and inorganic content in the particle-size ranges 2-100 pm and 100-200 pm diameter. Organic matter comprised 10-30 % of total sample weight, the remainder being predominantly sand. Changes in weight of particulate matter in samples taken throughout the year showed no clear seasonal pattern. Particulate organic material considered available as food to the nlussels averaged 2.65 mg I-'. Particulate inorganic matter averaged twice this amount. The energy value of the organic material averaged 6.1 kJ g-l. Phytoplankton was present in 34 % of the samples and is not cons~dered an important constituent in the mussels' diet. The assimilation efficiency of mussels feeding on natural detritus averaged 40 % over the ration levels 3-18 mg I-' dry weight of particulate matter. However, assimilation efficiency on pure Dunaliella primolecta culture declined to zero at a ration of 3 mg 1-' while pseudofaeces production was initiated at 6 mg I-'. It was concluded that the presence of particulate inorganic matter may be an important dietary requirement, 'diluting' the food and enabling assimilation to continue at the high ration levels experienced in the field. INTRODUCTIONdata to field conditions, the levels of naturally available food were examined at the study site. The assimiThe employment of algal monocultures has greatly lation efficiencies of mussels feeding on organic facilitated investigation of the feeding processes of detritus in the laboratory and field were then bivalves. Much of this work has centred upon the examined and compared with data obtained with the effects of different ration levels on filtration rates and aid of algal cultures.

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Biology of the California sea‐mussel (Mytilus californianus). II. Nutrition, metabolism, growth and calcium deposition

Cited by 94 publications

References 17 publications

Historical baselines and the future of shell calcification for a foundation species in a changing ocean

Historical baselines and the future of shell calcification for a foundation species in a changing ocean

Developmental plasticity of shell morphology of quagga mussels from shallow and deep-water habitats of the Great Lakes

Natural Food Availability and Assimilation in the Bivalve Choromytilus meridionalis

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