The Lethal and Sublethal Effect of Heavy Metal Mixture on Rainbow Trout (<i>Oncorhynchus mykiss</i>) in its Early Stages of Development

Kazlauskienė, Nijolė; Stasiūnaitė, Pranė

doi:10.1080/13921657.1999.10512287

Cited by 26 publications

(12 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to Lewis (1976), the effect of manganese on fertilized Oncorhynchus mykiss eggs was strongest before they reached the eyed stage and at hatching time. However, according to Kazlauskiene and Stasiunaite (1999), Oncorhynchus mykiss embryos exposed to a mixture of metals were more sensitive at the eyed stage than immediately after fertilization. Samson and Shenker (2000) observed 15-20% mortality of Danio rerio embryos after Hg exposure-most occurring within the first 8 h after fertilization.…”

Section: Embryonic Survivalmentioning

confidence: 95%

The effects of heavy metals on embryonic development of fish (a review)

Jezierska¹,

Ługowska²,

Witeska³

2008

Fish Physiol Biochem

398

179

View full text Add to dashboard Cite

Early developmental stages of fish are particularly sensitive to water pollution. Heavy metals may affect various developmental processes during the embryonic period, which results in a reduction of offspring quantity and quality. Waterborne metals may accumulate in the gonads of spawners and adversely affect gamete production and viability, or exert direct toxic influence upon developing embryos. The egg shell does not fully protect the embryo against metal penetration, particularly during the swelling phase; thus, metals may accumulate in the egg. The results depend on metal concentration and range from developmental disturbances to death of the embryo. Metals disturb various processes of fish embryonic development and affect the development rate. Early stages just after fertilization are particularly sensitive to metal intoxication, when most disturbances and the highest embryonic mortality occur. Waterborne metals also promote developmental anomalies during organogenesis, including body malformations. Heavy metals often induce a delay in the hatching process, premature hatching, deformations and death of newly hatched larvae. All these disturbances result in reduced numbers and poor quality of the larvae, which show small body size, high frequency of malformations and reduced viability.

show abstract

Section: Embryonic Survivalmentioning

confidence: 95%

The effects of heavy metals on embryonic development of fish (a review)

Jezierska¹,

Ługowska²,

Witeska³

2008

Fish Physiol Biochem

398

179

View full text Add to dashboard Cite

show abstract

“…Previous studies reported that some fish were more sensitive to Cu at the larval stage than at the embryonic stage, suggesting that chorions function to prevent the free passage of pollutants to the embryos, whereas newly hatched larvae are directly exposed to toxicants [28][29][30]. On the other hand, some studies found that chorions became more permeable to toxicants during embryogenesis, thereby increasing the sensitivity of the developing embryos to toxicants [7,10,31].…”

Section: Acute Toxicity Of Coppermentioning

confidence: 95%

“…Chem. 29,2010the !0.08-mg/L Cu concentrations (42.3-78.5%), the number of these abnormalities was significantly higher than in the lower Cu concentrations (2.3-8.8%) (Dunnett's test, p < 0.05; Fig. 3B).…”

Section: Chronic Toxicity Testmentioning

confidence: 99%

Toxicity of short-term copper exposure to early life stages of red sea bream, Pagrus major

Cao

Huang

Lü

et al. 2010

Environmental Toxicology and Chemistry

View full text Add to dashboard Cite

Acute (0, 0.1, 0.2, 0.4, 0.8, 1.6 mg Cu/L) and chronic (0, 0.02, 0.04, 0.06, 0.08, 0.10, 0.12 mg Cu/L) toxicity tests of Cu with embryonic and larval red sea bream, Pagrus major, were carried out to investigate their biological responses to Cu exposure in static water at 18 +/- 1 degrees C (dissolved organic carbon, 1.8 +/- 0.65 mg C/L; hardness, 6,183 +/- 360 mg CaCO3/L; salinity, 33 +/- 1 per thousand). The 24- and 48-h LC50 (median lethal concentration) values of Cu for embryos were 0.23 and 0.15 mg/L, whereas the 48-, 72-, and 96-h LC50 values for larvae were 0.52, 0.19, and 0.13 mg/L, respectively, suggesting that embryos were more sensitive to Cu toxicity than larvae. Copper exposures at > or =0.06 mg concentrations caused low hatching success, a delay in the time to hatching of embryos, and reductions in the growth and yolk absorption of the larvae, whereas high mortality and morphological malformations occurred in the embryos and larvae at > or =0.08 mg/L concentrations. Copper concentration did not significantly affect the heart rate of the embryos, but it significantly decreased the heart rate of the newly hatched larvae when the Cu concentration was > or =0.08 mg/L, suggesting that Cu at high concentrations could induce heartbeat disturbances in red sea bream more easily at the larval stage than at the embryonic stage. Hatching success, time to hatching, growth rate, morphological abnormality, yolk absorption, and heart rate were Cu concentration-dependent and could be effective endpoints for evaluating Cu toxicity to the early life stages of red sea bream in nature.

show abstract

“…The control fish depicted significantly maximum growth in terms of average increase in weight as compared to the treated (Javed, 2012). Moreover, the growth of rainbow trout was adversely affected due to exposure of Cu+Zn+Cr+Ni+Fe mixtures (Kazlauskiene and Stasiunaite, 1999). Vosyliene and Jankaite (2006) investigated the acute and long term toxicity of a heavy metal model mixture (HMMM) of Cu, Zn, Pb, Ni, Cr and Mn on rainbow trout by using a set of biological parameters.…”

Section: Discussionmentioning

confidence: 99%

Effect of Water Chemistry on Growth Performance of Some Freshwater Fish Exposed to Some Heavy Metals Mixture

Naz¹,

Javed²

2013

View full text Add to dashboard Cite

This studied was conducted to evaluate the correlation between water physico-chemical parameters and the growth performance of two fish species viz. Ctenopharyngodon idella and Hypophthalmichthys molitrix. Fish were exposed to sub-lethal (1/3rd of LC 50 ) concentrations of metal mixture under controlled laboratory condition for 90 days. All physical and chemical parameters were determined twice a day through out experimental period. Water pH (7.25), total hardness (225 mg/L as CaCO 3 ) and temperature (30°C) of water were kept constant during each trail for fish. Correlation and regression analyses were computed to find-out relationships among various parameters defined for this study. During growth periods of 90 day, both fish species were monitored weekly for their increase in average wet weights (g), fork and total lengths (mm), specific growth rate, condition factor, feed intakes and feed conversion efficiency. No fish species showed any mortality during the entire period of growth trails under chronic stress of metal mixture. The relationships among all phyisco-chemical and growth parameters were investigated after 90-day growth trail. The obtained results showed that physico-chemistry of metal mixture stressed media exerted significant effect on both fish growth. Significantly better feed intake increased the ammonia production and excretion by both fish resulting fish weight increments positively non-significant correlated with contents of stressed media and also cause significant effect on growth of fish. Total ammonia content of test media exhibited significantly direct relationship with dissolve oxygen. However, calcium showed significantly inverse correlation with magnesium by the both fish species. It is also concluded that not only toxicity of metals but also the deficiency of consumed oxygen cause frequent deaths of fish in water due to biological decomposition of heavy metals.

show abstract

The Lethal and Sublethal Effect of Heavy Metal Mixture on Rainbow Trout (Oncorhynchus mykiss) in its Early Stages of Development

Cited by 26 publications

References 19 publications

The effects of heavy metals on embryonic development of fish (a review)

The effects of heavy metals on embryonic development of fish (a review)

Toxicity of short-term copper exposure to early life stages of red sea bream, Pagrus major

Effect of Water Chemistry on Growth Performance of Some Freshwater Fish Exposed to Some Heavy Metals Mixture

Contact Info

Product

Resources

About