Physiological Energetics of Marine Molluscs

Bayne, B. L.; Newell, Roger I. E.

doi:10.1016/b978-0-12-751404-8.50017-7

Cited by 476 publications

(520 citation statements)

References 279 publications

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“…Many authors have shown that, the ammonia in general considered as major nitrogenous excretory product of bivalves and there occur profound difference in loss of nitrogen between different sizes and seasons [30,31]. In the present study on Lamellidens marginalis, the rate of ammonia release showed more increase large sized bivalves on December and January during winter seasons, because it is known that small size bivalves catabolise different biochemical substrates to varying degrees, according to season [22,32]. Also similar result was found by [27] in Indonaia caeruleus and [8 ]in Lamellidens marginalis.…”

Section: Discussionmentioning

confidence: 46%

“…The changes in the relationship between excretion rate and body size may be explained in part by seasonal changes in the synthesis and utilization of nitrogenous compound as substrates for energy metabolism. The rate oxygen consumption and ammonia excretion showed linear correlationship with body weight, Seasonal changes in oxygen uptake and ammonia excretion in the gastropod, Concholepas concholepas reported by [16].Review of literature reveled that, very little information was available on fresh water bivalve molluscs from India, [17] [21,22]. Rate of oxygen consumption was expressed in mg O2/l/h/gm body weight and rate of ammonia excretion was expressed in mg NH3-N/l/h body weight.…”

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confidence: 99%

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Untitled

2017

RJLBPCS

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ABSTRACT:The scaling of metabolic rates with body mass is one of the best known and most studied characteristics of aquatic animals. We studied here how size is related to oxygen consumption, ammonia excretion and O: N ratio in Freshwater Bivalve Mollusc Lamellidens marginalis species in an attempt to know how size specific changes affect their metabolism. The freshwater bivalve molluscs with specific size i.e. small (77-79 mm in shell-length) and large (90-93 mm in shell-length) were selected for experimental work from Bhima River at Siddhatek on December and January during winter. The adult bivalve molluscs with small size reported high value in oxygen consumption and O: N ratio but ammonia excretion was low value in small sized bivalves compared to large ones.The results are discussed in the glow of metabolic processes in fresh-water bivalve molluscs. In bivalve molluscs, the relationship between the rate of ammonia excretion and the body size can be variable due to a disproportionate reliance of protein catabolism for energy production [7,8]. [9] Stated that in bivalve molluscs the relationship between ammonia excretion rates and body size can be variable due to a disproportionate reliance on protein catabolism for energy production by small MATERIALS AND METHODS During RESULTS AND DISCUSSIONDuring study period, the physico chemical parameters like temperature, pH, hardness and dissolved oxygen content of habitat water of bivalve Lamellidens marginalis and the experimental water (tap water), were determined during experiment ( Table 1). The temperature of water of collection sites was (18.1 -20.8ºC) on December and (17.5 -20.3ºC) on January and also temperature of the tap water was (19.6 -23.0ºC) on December and on January it was (18.6 -21.8ºC). pH was found on December (7.92-8.10) and on January (8.10 -8.38) in habitat water and also in tap water was (7.55 -8.50) on December and on January (7.50 -7.70). The hardness of water was found on December on December and (274.0 -280.6 ppm) on month of January. The dissolved oxygen contents of the water was on December (4.8620-4.6220 mg/lit/hr) and on January (6.2178-6.5132 mg/lit/hr) whereas in tap water was (3.7620 -3.7620 mg/lit/hr) on December and on January (4.8177-4.8177 mg/lit/hr).

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Section: Discussionmentioning

confidence: 46%

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confidence: 99%

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2017

RJLBPCS

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“…In the case of the variance observed in the soft tissue mass, the equation model showed that this variance was related positively to POM and inversely to temperature, confirming that food availability and temperature are the most influential factors in the good condition of bivalves (BAYNE;NEWELL, 1983;THOMPSON, 1985;MALACHOWSKI, 1988;JARAMILLO et al, 1993;HIMMELMAN, 2000;ARRIECHE et al, 2002). Regarding POM as a food source for mussels, this aspect can be attributed to that described by CRANFORD and GRAND (1990), that although the phytoplankton is an important source of food, organic seston is an alternative energy source for bivalves.…”

Section: Discussionmentioning

confidence: 85%

Comparative performance of the mussels Perna perna and Perna viridis, cultivated at four different depths

et al. 2016

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García et al.: Comparative culture of P. perna and P. viridis 249Comparative performance of the mussels Perna perna and Perna viridis, cultivated at four different depths This study aims to evaluate the effect of environmental variability on the growth and survival of the subtropical and tropical mussels Perna perna and Perna viridis at four different culture depths in the Gulf of Cariaco during an annual cycle. Juveniles of P. perna (39.1±1.88 mm in shell length) and P. viridis (36.7±1.87 mm) were sown on nylon ropes (3/4") and suspended from a raft at 1, 3, 6 and 9 m depths. Every six weeks, three replicates of each species were sampled (10 individuals per replicate) at each depth. Growth parameters were determined: mass and shell length, dry mass of soft tissues as well as fouling and survival rates. Temperature, transparency, chlorophyll a, oxygen, salinity and particulate organic and inorganic matter were recorded at each culture depth for the purpose of relating growth and survival to environmental change. The results show that the growth of both species was linked to the environment, especially with regard to the influence of the food and temperature. A period of stagnant growth of P. perna was associated with the higher temperature and lower phytoplankton biomass that is characteristic of the season with prevalent water column stratification (August-November 2007). By contrast, the growth of P. viridis did not stagnate, although it was gradual and relatively lower. At the end, P. perna achieved higher growth rates than P. viridis. Possible culture strategies to improve the production of both mussel species are discussed. AbstrAct

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“…g live weight -1 .day -1 ) did not satisfy the basic requirements of the organism, causing a decrease in DW during the first 41 days (Table 2). From this date on DW stabilised, probably as a consequence of the decrease in the energy expenditure of the clams, which has a direct relationship with DW (Bayne and Newell, 1983). These differences in energy balance would therefore be responsible for the rate at which the gonadal development occurs in this species.…”

Section: Rationsmentioning

confidence: 92%

“…The three experiments constituted very different situations and may be envisaged as positive, zero and negative energy balance (Bayne and Newell, 1983;Delgado and Pérez-Camacho, 2003). The high ration (H: 1 mg OM.…”

Section: Rationsmentioning

confidence: 99%

Histological study of the gonadal development of <i>Ruditapes decussates</i> (L.) (Mollusca: Bivalvia) and its relationship with available food

Delgado¹,

Camacho²

2005

Sci. Mar.

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SUMMARY: This article describes the effects of food availability on the sexual maturation of Ruditapes decussatus through histological examination of the gonadal tissue. Three food rations were tested: High (H: 1 mg. organic matter. g live weight -1 .day -1 of the microalgae Isochrysis galbana clone T-ISO), intermediate (I: 0.5 mg OM g live weight -1 day -1 ) and nutritionally restricted (R: 0.25 mg OM g live weight -1 day -1 ). The tests were carried out at a constant temperature of 18ºC for a period of 70 days for diets H and I, and 120 days for diet R. The results showed that in R. decussatus the energy from ingestion was mainly channelled to reproductive processes, especially when food was restricted. The clams matured sexually under all the conditions tested, both with a somatic growth and with a loss of body mass. The available food was directly related to the rate of the gonadal development and with the total quantity of gonad generated. Equally, food restrictions limited gonadal recovery after spawning episodes. Food quantity also affected the dry weight of soft tissues (DW), which increased with the highest ration (H) and decreased notably with the lowest ration (R). Decreases in DW when food was scarce appeared to be more related to loss of reserve tissue rather than to variations in the quantity of reproductive tissue.Key words: Ruditapes decussatus, food availability, gonadal development, histology, maturity index. RESUMEN: ESTUDIO HISTOLÓGICO DEL DESARROLLO GONADAL DE RUDITAPES DECUSSATUS (L.) (MOLLUSCA: BIVALVIA) Y LA RELACIÓN CON EL ALIMENTO DISPONIBLE. -Este artículo describe los efectos de la disponibilidad de alimento en la maduración sexual de Ruditapes decussatus, a través del examen histológico del tejido gonadal. Se ensayaron tres raciones de alimento: Alta (H: 1 mg. materia orgánica. g live weight -1 .day -1 de la microalga Isochrysis galbana clone T-ISO), intermedia (I: 0.5 mg OM g live weight -1 day -1 ) y de restricción nutricional (R: 0.25 mg OM g live weight -1 day -1 ). Los ensayos se realizaron a una temperatura constante de 18ºC, y se prolongaron por un periodo de 70 días en el caso de las experiencias H e I, y de 120 días en el caso de la experiencia R. Los resultados muestran que en R. decussatus, la energía procedente de la ingestión se destina prioritariamente al proceso reproductivo, sobre todo en situaciones de restricción alimentaria. De esta forma, las almejas maduran sexualmente bajo todas las condiciones ensayadas, tanto en las que determinan un crecimiento somático, como en aquellas que producen una pérdida de masa corporal de las almejas. No obstante, el alimento disponible guarda relación directa con la velocidad del desarrollo gonadal y con la cantidad total de gónada generada. Igualmente, las restricciones de alimento pueden limitar las recuperaciones gonadales tras los episodios de puesta. La cantidad de alimento disponible repercute también en el peso seco de los tejidos blandos (DW), que se incrementa en la ración más elevada (H) y disminuye notablemente con la ra...

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Physiological Energetics of Marine Molluscs

Cited by 476 publications

References 279 publications

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Comparative performance of the mussels Perna perna and Perna viridis, cultivated at four different depths

Histological study of the gonadal development of <i>Ruditapes decussates</i> (L.) (Mollusca: Bivalvia) and its relationship with available food

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