Effect of temperature on oxygen consumption and ammonia excretion in the Calafia mother-of-pearl oyster, Pinctada mazatlanica (Hanley, 1856)

Saucedo, Pedro E.; Ocampo, Lucía; Monteforte, Mario; Bervera, Horacio

doi:10.1016/s0044-8486(03)00327-2

Cited by 96 publications

(58 citation statements)

References 21 publications

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“…Time of incubation at each site (1 to 3 h) was selected after preliminary measurements to allow recording of nitrogen fluxes on the linear phase and to prevent a drop below 30% of the initial concentration of oxygen, which may alter bivalve metabolism (Le Moullac et al 2007, Sussarellu et al 2010. Temperature was recorded during the experiment to check for any changes which may have influenced pearl oyster physiology (Saucedo et al 2004, Mondal 2006. For each experiment, 4 MES were installed simultaneously, 3 containing organisms (CR or PO units) and 1 empty used as a control.…”

Section: Metabolic Enclosure System For In Situ Flux Measurementmentioning

confidence: 99%

“…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: Metabolic Enclosure System For In Situ Flux Measurementmentioning

confidence: 99%

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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“…Lucas (2008) observed that increase in water temperature positively influenced the ingestion rate in pearl oysters by increasing respiration and metabolic rate. Saucedo et al (2004) reported that in P. mazatlanica the metabolic activity was affected at high and low level of temperature. In Indian pearl oyster P. fucata Alagarswami et al (1983) observed that a good larval growth between 24-29°C.…”

Section: Hydrobiological Parameters Recorded During the Studymentioning

confidence: 99%

Growth and survival of the blacklip pearl oyster Pinctada margaritifera (Linnaeus) spat reared with various combinations of microalgae in different stocking densities

C.¹,

A.²,

Manjumol³

et al. 2014

J.Mar.Biol.Ass.India

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The present study has revealed that, the temperature has a crucial role among the observed physiochemical parameters on the growth and survival of P. margaritifera spat. Instantaneous growth rates (IGRs) in DVM, APM and TWT were calculated and used to assess the variation in growth of spat reared with different feed mixtures (FM-1 -8) of five diatoms and stocking densities 20 and 30). Among all treatments, FM-3, 4 and 5 gave better performance than that all other combinations of diatoms. Chaetoceros calcitrans, Nannochloropsis oculata and Chlorella marina was formed major shares (60%) respectively in combination with 10% each of rest of algae. FM-7 which had all diatoms in equal (20%) measure performed as the next best feed combination. Poor growth was observed in spat fed with FM-2 which was dominated by Isochrysis galbana (60%) and FM-6 which comprised of an equal measure (30%) of Pavlova salina, Isochrysis galbana, Chaetoceros calcitrans and Nannochloropsis oculata and Chlorella marina at 5% each. When the stocking density increases (SD-20 and 30) growth rates (IGRs) in all three variables decreased irrespective of feed combinations. Mortality rates varied in different treatments and also with stocking densities. Maximum mortality was observed in control in all the stocking densities. However, in all the feeding combinations and stocking densities, 100 % survival was observed upto the 9 th DOC and mean cumulative mortalities showed a gradual increase. Comparatively very less cumulative mortality and better growth performance were recorded in stocking density, SD-10.

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“…The mechanism behind thermal death leads to number of primary mechanisms which include failure of neuronal function, excessive membrane fluidity, loss of nervous system integrity & oxygen supply as well as enzyme functions 11,18 . Several researchers studied on effect of temperature on physiological processes in aquatic animals suggest high temperature within tolerance limits does not have any direct effect on mortality, but some factors Viz., reduced feeding, poor growth, high metabolic expenditure responsible along with temperature 1,16 . The effects of temperature have been considered both in terms of acute, temporal changes during course of acclimation to new temperature and in terms of homeostatic compensations or adaptation compromises to changed environment 19 .…”

Section: Introductionmentioning

confidence: 99%

Survival Rate of Freshwater Crustacean, Barytelphusa guerini in Paddy Fields of Nanded District under Influence of Temperature Stress

Jagtap

2012

Int J of Biomed & Adv Res

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Climate change may strongly influence distribution and abundance through changes in survival rate of animals. The freshwater crustacean, Barytelphusa guerini collected from paddy fields of Nanded district. The present paper deals with the survival rate of freshwater crab under temperature stress. The crabs were exposed to six different temperatures ranging from 15°, 20°, 25°, 30°, 35° & 40° C. The survival rate was found to be high at lower temperature (15° & 20° C). The survival rate was initiating to reduce at 25° C and became lowest from 30° C.

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Effect of temperature on oxygen consumption and ammonia excretion in the Calafia mother-of-pearl oyster, Pinctada mazatlanica (Hanley, 1856)

Cited by 96 publications

References 21 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

Growth and survival of the blacklip pearl oyster Pinctada margaritifera (Linnaeus) spat reared with various combinations of microalgae in different stocking densities

Survival Rate of Freshwater Crustacean, Barytelphusa guerini in Paddy Fields of Nanded District under Influence of Temperature Stress

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