Oxygen consumption, ammonia excretion, and filtration rate of the marine bivalveMytilus edulisexposed to methamidophos and omethoate

Mussel seed Mytilus galloprovincialis (Bivalvia: Mytilidae) from two origins (rocky shore and collector ropes) was cultivated on a raft in the Ría de Arousa (north-west Spain), from seeding to thinning out, for 226 d (November 1995–July 1996) and two aspects of metabolism, oxygen consumption rate (VO2) and ammonia excretion rate (VNH4-N) were studied in situ.The model derived from multiple analysis of oxygen consumption accounted for 91.9% of the variance, based on dry weight of the mussels and the environmental factors quality of food (organic content) and mainly chlorophyll-a. Seed origin also showed significant influence. The seasonal pattern of the oxygen consumption can be attributed mainly to the variation of chlorophyll-a, which showed a higher range of values in the spring months.Origin of seed did not show a homogeneous effect on oxygen consumption throughout the cultivation period. Collector rope mussels showed higher oxygen consumption values at the beginning of the cultivation period and after the first 15 d, but the rocky shore mussels showed a higher oxygen consumption between days 22 and 110. Energy-conserving patterns and lower condition index at the onset of the experiment for rocky shore mussels could explain these initial differences.Multiple analysis on the variation of ammonia excretion rate provided a model that accounted for 72.6% of the variance based on dry weight of mussels, seed origin and the environmental parameters chlorophyll-a and total particulate matter. The rocky shore mussels showed a significantly higher excretion values for most of the cultivation period, although there was no constant tendency throughout. High excretion values were recorded between January and March, whilst for the rest of the cultivation period values were low.The O:N index was higher in collector rope mussels for most of the cultivation period, which may suggest a more favourable energy metabolism and/or a more appropriate nutritional state for these specimens.

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Ecophysiology of the benthic amphipod Monoporeia affinis in an open-sea area of the northern Baltic Sea: seasonal variations in oxygen consumption and ammonia excretion

Marine Biology ◽

10.1007/bf00351331 ◽

1996 ◽

Vol 126 (4) ◽

pp. 645-654 ◽

Cited By ~ 9

Author(s):

K. K. Lehtonen

Keyword(s):

Oxygen Consumption ◽

Baltic Sea ◽

Seasonal Variations ◽

Ammonia Excretion ◽

Open Sea ◽

Sea Area

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The effect of dissolved oxygen and salinity on oxygen consumption, ammonia excretion and osmotic pressure of Penaeus setiferus (Linnaeus) juveniles

Journal of Experimental Marine Biology and Ecology ◽

10.1016/s0022-0981(98)00139-7 ◽

1999 ◽

Vol 234 (1) ◽

pp. 41-57 ◽

Cited By ~ 110

Author(s):

Carlos Rosas ◽

Evenor Martinez ◽

Gabriela Gaxiola ◽

Roberto Brito ◽

Adolfo Sánchez ◽

...

Keyword(s):

Oxygen Consumption ◽

Dissolved Oxygen ◽

Osmotic Pressure ◽

Ammonia Excretion ◽

Penaeus Setiferus

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Effect of the diet traditional and non-traditional on the respiration and excretion in larvae of white shrimp Litopenaeus vannamei

Revista Mvz Córdoba ◽

10.21897/rmvz.7 ◽

2015 ◽

pp. 4917-4928

Author(s):

María Alejandra Medina-Jasso ◽

Juan Francisco Arzola-González ◽

Pablo Piña-Valdez ◽

Mario Nieves-Soto

Keyword(s):

Oxygen Consumption ◽

Energy Absorption ◽

Litopenaeus Vannamei ◽

Statistical Difference ◽

Ammonia Excretion ◽

Development Stage ◽

White Shrimp ◽

Traditional Diet ◽

First Case

ABSTRACT Objetive. It was studied the respiration and ammoniacal excretion of zoeas and mysis of Litopenaeus vannamei fed with the diet used traditionally (of microalgae and nauplios of artemia) and another alternative (not traditional) of microalgae with rotifers. Materials and methods. After four hours the oxygen consumption and ammonia excretion in BOD bottles with 60 larvae (closed respirometers) was estimated. The concentrations of O2 and NH4+ were measured with an electrode polarográfico in the first case and with the indophenol blue technique for the second. Results. In zoea, oxygen consumption increased with development and showed statistical differences (p=0.023). In mysis, the oxygen consumption were significance in the traditional diet, whereas no differences were alternative (p=0.003). In both stages for the ammoniacal excretion increased development stage and there were detected statistical difference (p<0.001), although to the diets were not noticed significant differences. Conclusions. A higher energy absorption for zoea (I, II y III) what mysis (I, II y III) larvae was obtained, this is likely an interaction between rates of respiration and excretion caused by variations in the efficiency of absorption by the larvae. The weights obtained in both larvae were not supplied with differences between diets.

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