Comparative effects of microalgal species and food concentration on suspension feeding and energy budgets of the pearl oysters Pinctada margaritifera and P. maxima (Bivalvia:Pteriidae)

Yukihira, H.; Klumpp, David; Lucas, John

doi:10.3354/meps171071

Cited by 39 publications

(31 citation statements)

References 27 publications

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“…At 18, 23 and 28°C, Saucedo et al (2004) also reported no variations of NH 4 excretion efficiency for Pinctada mazatlanica. Over a similar range of temperatures (23 to 28°C), clearance rate and respiration have also been reported to be relatively independent of temperature for P. margaritifera and P. maxima, highlighting a probable acclimatization capacity of pearl oysters to moderate seasonal variations (Yukihira et al 1998).…”

Section: Seasonal Variations Of Nutrient Fluxesmentioning

confidence: 76%

“…Factors which may influence nitrogen excretion by pearl oysters include individual size, temperature and trophic level (Yukihira et al 1998, Saucedo et al 2004, Mondal 2006. During this study, nutrient fluxes of clean pearl oysters (PO units) were constant over the year and were not correlated with the biomass of pearl oysters or with the environmental parameters recorded.…”

Section: Seasonal Variations Of Nutrient Fluxesmentioning

confidence: 99%

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Influence of farmed pearl oysters and associated biofouling communities on nutrient regeneration in lagoons of French Polynesia

Lacoste¹,

Gueguen²,

Moullac³

et al. 2014

Aquacult. Environ. Interact.

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Bivalve cultivation can significantly contribute to nutrient cycling in semi-enclosed ecosystems. We investigated the influence of suspended pearl oyster culture on nutrient regeneration in the water column of 3 oligotrophic lagoons in French Polynesia. The aim of this first study performed in a tropical area was to assess the seasonal variability of nutrient fluxes and to quantify the contribution of biofouling communities. In situ metabolic enclosure systems were used to measure nutrient uptake or release by 'cultivation units' (i.e. 4 pearl oysters with or without associated biofouling). In all 3 study lagoons (Tahiti, Mangareva, Ahe), nutrient fluxes produced by pearl oyster and associated biofouling communities (CR units) were 4-to 6-fold higher than those measured for cleaned pearl oysters. CR units can release dissolved inorganic nitrogen and soluble reactive phosphorus in the water column at a rate of 200 and 50 µmol h −1 , respectively. Trophic level and composition of biofouling communities may explain the variations of fluxes observed between the different islands. At the pearl farm scale (Ahe), pearl oyster long-lines may supply 70% of the inorganic nitrogen demand for primary production, with biofouling communities accounting for 60% of the total nutrient release. Pearl oyster culture enhances nutrient availability and alters stoichiometry, which can strongly modify the dynamics of the planktonic ecosystem.

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Section: Seasonal Variations Of Nutrient Fluxesmentioning

confidence: 76%

Section: Seasonal Variations Of Nutrient Fluxesmentioning

confidence: 99%

Influence of farmed pearl oysters and associated biofouling communities on nutrient regeneration in lagoons of French Polynesia

Lacoste¹,

Gueguen²,

Moullac³

et al. 2014

Aquacult. Environ. Interact.

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“…Similarly, when feeding on pure algal diets, Pinctada maxima was more efficient than P. margaritifera at gaining energy at high cell concentrations (Yukihira et al 1998b). However, there were several differences between the feeding and energy budgets of pearl oysters supplied with mono-specific algal diets (Yukihira et al 1998a,b) and those fed natural SPM.…”

Section: Discussionmentioning

confidence: 99%

“…In laboratory studies, Yukihira et al (1998b) revealed that Pinctada maxima had higher cleara.nce rates (CR) than P margantifera at relatively high concentrations of pure microalgae, Dunaliella primolecta and Isochrys~s aff, galbana (T-Iso). P. maxima also had higher absorption efficiencies throughout most of the range of food concentrations (range: 0.1 to 3.1 mg I-').…”

Section: Introductionmentioning

confidence: 99%

Feeding adaptations of the pearl oysters Pinctada margaritifera and P. maxima to variations in natural particulates

Yukihira¹,

Klumpp²,

Lucas³

1999

Mar. Ecol. Prog. Ser.

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ABSTRACT-The tropical pearl oysters Pinctada margaritifera (Linnaeus) and P maxima Janieson are suspension feeders of malor economic importance. P margaritifera occurs in coral reef waters characterised by oligotrophy and low turbidity. P. maxima habitats are generally characterised by high terrigenous sediment and nutrient inputs, and productivity levels. These differences in habitat suggest that P. margaritifera will feed more successfully at low food concentrations, while P. maxima will cope with a wider range of food concentrations and more silty conditions. The effect of varying concentrations of natural suspended particulate matter (SPM) on clearance rate (CR), pseudofaeces production, absorption efficiency (abs.eff.), respired energy (RE) and excreted energy (EEJ was determined for P. margantifera and P maxlma. The resultant scope for growth (SFG) was deterrmned and related to habitat differences between the oysters. There was no selective feeding on organic particles in either species. P. rnargaritifera had higher CR at low SPM concentration (<2 mg I-'), while P. maxima had higher CR under turbid conditions (SPM: 13-45 mg 1-'). The latter species produced less pseudofaeces in relation to its filtration rates; consequently, this species ingested more SPM than P. margaritifera. P. maxima had positive SFG over a wider range of SPM concentrations (up to 30-40 mg I-') while P. margaritifera maximised SFG under low SPM conditions (<3 mg I-'). Thus feeding responses and energy balance reflected the typical habitats of each species. P, margaritdera retained smaller particles than P. maxima, enabling it to consume a wider particle size range of SPM at low food levels. P. maxima was adapted to its environments of greater SPM load through greater ingestion rates and higher digestive ability. The optimum SPM concentrations and particle size range for P. margaritifera (SPM < 5 mg I-', size > 3 pm) and P. maxima (SPM = ca 3 to 15 mg I-', size > 4 pm) may be used for selection of optimum pearl culture sites.

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“…The physiological index Scope for Growth (SFG) determines the energy potentially available for growth and reproduction (Winberg, 1960) and is calculated as the difference between absorbed energy and respired and excreted energy. SFG has been used in marine bivalves to determine, for example, physiological plasticity of native and invasive species (Sará et al, 2008;NievesSoto et al, 2011), feeding range for aquaculture purposes (Ibarrola et al, 1998;Yukihira et al, 1998;Kesarcodi-Watson et al, 2001a, 2001bVelasco, 2007), identifying physical and chemical parameters for optimum growth (Yukihira et al, 2000;Soria et al, 2007), and population health (Din & Ahamad, 1995).…”

Section: ____________________mentioning

confidence: 99%

Scope for growth of juvenile Cortez oyster, Crassostrea corteziensis fed isocaloric diets prepared with microalgae and cereal flours

Maeda‐Martínez

Saucedo

Mazón‐Suástegui

et al. 2016

lajar

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ABSTRACT.We evaluated the effect of nine isocaloric diets prepared with a mixture of microalgae alone (Tisochrysis lutea + Chaetoceros calcitrans + Ch. gracilis; 1:1:1) and different combinations of the algal mixture and cornstarch or wheat flour, on the Scope for Growth (SFG) of Cortez oyster Crassostrea corteziensis juveniles (7.2 ± 1.1 mm shell length). A total 15,000 spat was acclimated to the experimental diets for 30 days at 21ºC, prior SFG determinations. Consumed energy, absorbed energy, and SFG decreased with a corresponding decrease in the proportion of live microalgae in the diet. Oysters fed the microalgal diet showed significantly increased physiological activity in all parameters except absorption efficiency. Oysters fed diets containing up to 50% dry feedstuff showed positive SFG values but these were significantly lower than SFG shown in oysters fed microalgae alone. Oysters fed diets containing ≥75% dry feedstuff showed negative SFG. These results suggest that cereals can be used as complementary food or C. corteziensis spat in hatchery operations, provided replacement of microalgae is kept below 50%.

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Comparative effects of microalgal species and food concentration on suspension feeding and energy budgets of the pearl oysters Pinctada margaritifera and P. maxima (Bivalvia:Pteriidae)

Cited by 39 publications

References 27 publications

Influence of farmed pearl oysters and associated biofouling communities on nutrient regeneration in lagoons of French Polynesia

Influence of farmed pearl oysters and associated biofouling communities on nutrient regeneration in lagoons of French Polynesia

Feeding adaptations of the pearl oysters Pinctada margaritifera and P. maxima to variations in natural particulates

Scope for growth of juvenile Cortez oyster, Crassostrea corteziensis fed isocaloric diets prepared with microalgae and cereal flours

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