Konsumsi Oksigen Ikan Uceng Nemacheilus fasciatus (Valenciennes, 1846) pada Kondisi Padat Tebar yang Berbeda

Oxygen Consumption of Barred Loach Nemacheilus fasciatus (Valenciennes, 1846) under Different Stocking Densities. In aquaculture system, fish growth is affected by stocking densities. One way to predict the effect of stocking density on growth is to determine fish metabolic rate through oxygen consumption measurements. In Barred loach Nemacheilus fasciatus (Valenciennes, 1846), the information was scarce on oxygen consumption. This study was to analyze the effect of stocking density on oxygen consumption in Barred loach conducted at Research Institute for Freshwater Aquaculture and Fisheries Extension, Bogor in May 2018. Barred loach (total length: 5.79 ± 0.47 cm, weight: 1.32 ± 0.34 g) was observed its oxygen consumption on three different stocking densities (5, 10, and 15 fish/L) by using closed respirometers (volume: 1.4 L) with three replications of each treatment. Measurement of oxygen consumption was carried out under normoxia and hypoxia conditions. In addition, fish behavior and ventilation rate were also observed and recorded according to treatment. The results showed that the highest oxygen consumption of barred loach was found in the stocking density of 5 fish/L (1250.6 ± 128.4 mg O2/kg/h) which was significantly different from the stocking density of 10 fish/L (626.9 ± 46.7 mg O2/kg/h) and 15 fish/L (596.9 ± 48.9 mg O2/kg/h). Meanwhile, oxygen consumption of barred loach under hypoxic conditions decreased significantly compared to normoxic conditions, which was marked by a decrease in their swimming activities. Although the ventilation rate in hypoxic conditions has decreased, the value was not significantly different from those of normoxia condition. Results of this study provide information that an increase in stocking density and hypoxic conditions in barred loach caused a decrease in oxygen consumption rates. In addition, this study showed that the critical oxygen level for barred loach was around 3.1 mg/L

Download Full-text

Pengaruh Padat Tebar terhadap Konsumsi Oksigen dan Respons Stres Ikan Cupang Alam (Betta imbellis)

Oseanologi dan Limnologi di Indonesia ◽

10.14203/oldi.2021.v6i1.314 ◽

2021 ◽

Vol 6 (1) ◽

pp. 11

Author(s):

Shofihar Sinansari ◽

Vitas Atmadi Prakoso ◽

Erma Primanita Hayuningtyas ◽

Bambang Priadi ◽

Sri Sundari ◽

...

Keyword(s):

Oxygen Consumption ◽

Blood Glucose ◽

Blood Glucose Level ◽

Glucose Level ◽

Stress Responses ◽

Stocking Density ◽

Ventilation Rate ◽

Oxygen Level ◽

Critical Oxygen ◽

The Impact

Effect of Stocking Density on Oxygen Consumption and Stress Response in Crescent Betta (Betta imbellis). Stocking density is one of the determinant parameters for fish growth optimization in aquaculture systems due to its relationship with fish metabolism. Information about the impact of different stocking densities on crescent betta (Betta imbellis) metabolism was not available yet. This study was aimed to analyze the effect of stocking density on oxygen consumption, critical oxygen level, and stress responses in crescent betta.The study was carried out under three different stocking density treatments: 5, 10, and 15 fish/L with three replications using 2.74 ± 0.23 cm total length and 0.22 ± 0.05 g body weight tested fishes.The parameters observed were oxygen consumption, ventilation rate, blood glucose level, cortisol, and critical oxygen level. The result showed that the highest oxygen consumption was found at 5 fish/L stocking density treatment (3.01 ± 0.28 mg O2/g/h), which was significantly different from 10 fish/L (1.01 ± 0.21 mg O2/g/h) and 15 fish/L (0.92 ± 0.08 mg O2/g/h) stocking density treatments. Oxygen consumptions under hypoxic condition was not significantly different compared to normoxic condition.The ventilation rate tends to increase significantly along with the increasing of stocking densities. Critical oxygen levels were not significantly different among the treatments,with the value of 3.31 ± 0.65 mg/L, 3.14 ± 0.29 mg/L, and 2.83 ± 0.19 mg/L for stocking density of 5, 10, and 15 fish/L, respectively. The blood glucose level at 15 fish/L stocking density was significantly higher than others, whereas the cortisol levels was not significantly different among the treatments. The results of this study provided information that the increasing stocking density of cressent betta will decrease their metabolism activity and increase ventilation rate. However, the increase of ventilation rate was negatively correlated with oxygen consumption per breath at higher stocking densities due to decrease in fish activity; and higher stocking densities will decrease oxygen consumption. Based on the results, it can be concluded that the ideal stocking density for crescent betta is 5 fish/L. The increasing of stocking density will decrease oxygen consumption rates and increase the stress level of crescent betta.

Download Full-text

Neuroglobin: A Respiratory Protein of the Nervous System

Physiology ◽

10.1152/nips.01513.2003 ◽

2004 ◽

Vol 19 (3) ◽

pp. 110-113 ◽

Cited By ~ 21

Author(s):

Thorsten Burmester ◽

Thomas Hankeln

Keyword(s):

Nervous System ◽

Oxygen Consumption ◽

Neuronal Survival ◽

Heme Protein ◽

The Body ◽

Hypoxic Conditions ◽

Respiratory Protein ◽

Consumption Rates ◽

Endocrine Tissues

Nerve tissues exhibit some of the highest oxygen consumption rates found in the body. Neuroglobin, a heme protein distantly related to hemoglobin, is thought to enhance the supply of oxygen to the neurons, the eye, and some endocrine tissues. Neuroglobin may promote neuronal survival under hypoxic conditions as they occur, for example, in stroke.

Download Full-text

Impact of higher stocking density of juvenile Atlantic sturgeon, Acipenser oxyrinchus Mitchill, on fish growth, oxygen consumption, and ammonia excretion

Archives of Polish Fisheries ◽

10.2478/v10086-011-0007-6 ◽

2011 ◽

Vol 19 (2) ◽

Cited By ~ 5

Author(s):

Mirosław Szczepkowski ◽

Bożena Szczepkowska ◽

Iwona Piotrowska

Keyword(s):

Oxygen Consumption ◽

Stocking Density ◽

Ammonia Excretion ◽

Fish Growth ◽

Atlantic Sturgeon ◽

Acipenser Oxyrinchus

Download Full-text

Energetics of Sablefish, Anoplopoma fimbria, under Laboratory Conditions

Canadian Journal of Fisheries and Aquatic Sciences ◽

10.1139/f82-136 ◽

1982 ◽

Vol 39 (7) ◽

pp. 1012-1020 ◽

Cited By ~ 19

Author(s):

Kathleen M. Sullivan ◽

Kenneth L. Smith Jr.

Keyword(s):

Body Weight ◽

Oxygen Consumption ◽

Growth Rates ◽

The Body ◽

Fish Growth ◽

Metabolic Rates ◽

Anoplopoma Fimbria ◽

Consumption Rates ◽

Excretion Rates ◽

Conversion Efficiencies

We measured respiration, growth, ingestion, and excretion rates for sablefish, Anoplopoma fimbria, collected off southern California at a depth of 500 m and maintained in the laboratory. We also measured the water, protein, and lipid content of white skeletal muscle in both laboratory-held and field fish. Sablefish fed a large ration (14% of wet body weight) every 7–10 d showed growth rates two to three times higher than known growth rates for field fish. On a reduced ration (4% of wet body weight) sablefish grew at rates similar to field fish, but white muscle composition varied significantly from field fish. Oxygen consumption rates under constant temperature conditions showed a decrease in the weight-specific oxygen consumption rates with increase in body weight, ranging from routine metabolic rates of 195.8 mg O2∙kg−1∙h−1 for a 0.25-kg fish to 60.8 mg O2∙kg−1∙h−1 for a 2.78-kg fish. Based on measurements of respiration and excretion, sablefish were estimated to have 162 d of energy stored in the body lipids and did not show signs of starvation stress with food deprivation up to 6 mo in the laboratory. Energy allocation shows very slow growth rates, low conversion efficiencies, and low metabolic rates as adjustments made to large, infrequent meals.Key words: physiological responses, benthopelagic fish, growth, metabolic rate, respiration, excretion

Download Full-text