Long-Term Heavy Metal Mixture Toxicity to Embryos and Alevins of Rainbow Trout (<i>Oncorhynchus mykiss</i>)

Stasiūnaitė, Pranė

doi:10.1080/13921657.1999.10512286

Cited by 10 publications

(4 citation statements)

References 28 publications

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“…Sarnowski and Jezierska (1999) observed high frequency of malformations in Ctenopharyngodon idella larvae from Pb-exposed eggs; the fish showed edema of the anterior part of the body, spinal curvatures and tail shortening. Stasiunaite (1999) reported malformations of the vertebral axis and retarded yolk sac resorption in Oncorhynchus mykiss larvae hatched in a metal mixture. Ozoh (1979) observed malformation of Brachydanio rerio larvae resulting from exposure to low concentrations of Pb and Cu.…”

Section: Size and Quality Of The Newly Hatched Larvaementioning

confidence: 96%

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

Jezierska¹,

Ługowska²,

Witeska³

2008

Fish Physiol Biochem

398

179

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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.

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Section: Size and Quality Of The Newly Hatched Larvaementioning

confidence: 96%

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

Jezierska¹,

Ługowska²,

Witeska³

2008

Fish Physiol Biochem

398

179

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“…A significant change in fish feeding efficiency is associated with decreased fish metabolism and activity when exposed to metal mixtures. As fish growth involves both physiological and biochemical processes, metals must bring biochemical variations before causing negative effect on fish growth (Stasiūnaitė, 1999;Jiang et al, 2023). It was noticed that high concentration of heavy metals in yellow perch adversely affect feed intake, growth rate, and feed conversion ratio (Sherwood et al, 2000).…”

Section: Hypophthalmicthys Molitrixmentioning

confidence: 99%

Impact of Chronic Exposure to Heavy Metal Mixtures on Selected Biological Parameters of Freshwater Fish Species

Naz,

Chatha,

Ullah

et al. 2023

THE JAPS

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Heavy metal contamination usually causes depletion in feed utilization in fish, and such disturbance may result in reduced metabolic rate and hence causing reduction in their growth. The present study assessed theharmful effect of sublethal concentrations of four different heavy metal mixturesi.e., Mix-I (Mn+Ni), Mix-II(Mn+Ni+Pb), Mix-III (Mn+Pb+Zn+Fe), and Mix-IV (Mn+Ni+Pb+Zn+Fe) on five fish species including Labeorohita, Catla catla,Cirrhinamrigala, Hypophthalmichthys molitrix, and Ctenopharyngodonidella.The experiment was carried out in triplicatefor each species separately in glass aquarium for 12 weeks. The results showed a significant(p < 0.001)effect on the treated group as compared to the control group. The average weight gain was as C. catla>L. rohita>C. mrigala>C. idella>H. molitrix. The condition factor was as C. idella>C. mrigala>L. rohita>C. catla>H. molitrix. Similarly, the feed intake also reduced significantly (p>0.001) in the treated group, and the feed conversion efficiency showed significant (p>0.05) effect of metal mixtures on fish metabolism and growth activity. The current study concluded that the studied heavy metals are toxic to different fish species, even at sub-lethal concentrations, and affect different biological parameters of fish growth.

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“…They can cause adverse effects on aquatic organisms if adequate concentration of chemicals comes into contact with a biological membrane of an organism or system. At higher levels of biological organization (tissue, organ and whole organism) heavy metals induce changes in metabolism, biochemistry, physiology, and histology, and inhibit synthesis of proteins and nucleic acids (Stasiūnaite I 1999;Wicklund et al 1992;Wilson and Taylor 1993).…”

Section: Introductionmentioning

confidence: 99%

Effects of Cadmium (CdCl2) on development and hatching of eggs in European squid (Loligo vulgaris Lamarck, 1798) (Cephalopoda: Loliginidae)

Şen

Sunlu

2007

Environ Monit Assess

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This is the first study related to the effects of cadmium (Cd) on the development and hatching of eggs of Loligo vulgaris. The eggs were exposed to concentrations varying from 10 to 100,000 microg Cd/l for up to 1 month. During the study period natural sea water salinity (37 PSU), ambient temperature (ranging 16.5-21.5 degrees C) and light conditions of 12-h light: 12-h dark for 744-h were used prior to the hatching. For 96-h, mortality rate of 100% of the eggs was found at cadmium concentration of 100,000 microg Cd/l, and the same mortality rate of the eggs were found at 1,000 and 10,000 microg Cd/l for 744-h and 696-h, respectively. Hatching took place between hours 456 and 576 in the control group and between hours 480 and 576 in 10 and 100 microg Cd/l groups. Total hatching rates were calculated to be 98.2 +/- 1.6% for control group, 99.4 +/- 0.6% for 10 microg Cd/l group and 98.6 +/- 1.2% for 100 microg Cd/l group. Hatching successes were estimated as 69.5 +/- 13.8% for control group, 84.5 +/- 8.2% for 10 microg Cd/l group and 76.9 +/- 5.9% for 100 microg Cd/l group. In the 100,000 microg Cd/l treatment, the egg degeneration began from animal pole of the eggs in 16 h, and 50% and 100% of them died in the initial stage at 72-h and 96-h, respectively. In the 10,000 microg Cd/l group, the eggs which reached at stage 19 (IX) were deformed and 50% and 100% of them died at 312-h and 696-h, respectively. In 1,000 microg Cd/l group, however, the eggs developed abnormally from stage 21 (X-XI) and reached at stage 29 (XIX), and 50% and 100% of them died in 624-h and in 744-h, respectively. There were significant differences in survival rates of the eggs among the concentrations (p < 0.05). The current study demonstrated that Cd adversely affects the development, survival and hatching of L. vulgaris eggs; however, no mortality was observed in 10 microg Cd/l and 100 microg Cd/l groups.

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Long-Term Heavy Metal Mixture Toxicity to Embryos and Alevins of Rainbow Trout (Oncorhynchus mykiss)

Cited by 10 publications

References 28 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)

Impact of Chronic Exposure to Heavy Metal Mixtures on Selected Biological Parameters of Freshwater Fish Species

Effects of Cadmium (CdCl2) on development and hatching of eggs in European squid (Loligo vulgaris Lamarck, 1798) (Cephalopoda: Loliginidae)

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