Sublethal zinc exposure has a detrimental effect on reproductive performance but not on the cyst hatching success of Artemia parthenogenetica

Sarabia, Raquel; Ramo, J. Del; Varó, Inmaculada; Dı́az-Mayans, J.; Torreblanca, Amparo

doi:10.1016/j.scitotenv.2008.03.002

Cited by 22 publications

(16 citation statements)

References 27 publications

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“…Our findings are in agreement with the results of Raikow et al (2006Raikow et al ( , 2007, who observed that the biocide SeaKlean had significant negative effects on hatching of D. mendotae dormant eggs, but with a ten times lower sensitivity compared to neonate mortality (Song et al 2011). Studies using dormant eggs of other zooplankton species (mainly rotifers and Artemia) gave variable results; ranging from no significant adverse effects on hatching rates (Sarabia et al 2003(Sarabia et al , 2008Varó et al 2006;Marcial and Hagiwara 2007), to effects on unhatched embryos at concentrations below effect levels for hatched individuals Rafiee et al 1986). This indicates that effects of chemicals on dormant stages differ among and within species as well as among toxicants, depending on their mode of action.…”

Section: Impact Of Pesticides On Hatching Growth and Reproductionsupporting

confidence: 90%

“…The results of different studies using Artemia cysts, however, appear to be inconclusive. Varó et al (2006) and Sarabia et al (2003Sarabia et al ( , 2008 reported no adverse effects of metal and pesticide exposure on hatching of Artemia cysts. Bagshaw et al (1986) and Rafiee et al (1986), on the contrary, reported that hatching of dormant eggs was more sensitive to heavy metal exposure than hatched individuals.…”

Section: Introductionmentioning

confidence: 98%

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Pesticide exposure impacts not only hatching of dormant eggs, but also hatchling survival and performance in the water flea Daphnia magna

et al. 2013

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Laboratory ecotoxicity tests and biomonitoring in aquatic systems are currently based on the active component of invertebrate communities. Even though dormant egg banks are crucial for the long term survival and community dynamics of many aquatic organisms, the effects of anthropogenic activities on dormant egg bank dynamics have rarely been studied. In this study we investigated the effects of two pesticides with a different mode of action (carbaryl and fenoxycarb) on hatching of Daphnia magna dormant eggs (ephippia) as well as on survival, growth and reproduction of the hatched neonates. Dormant eggs were exposed to the pesticides simultaneously to incubation under conditions that induce hatching (long daylight and 20°C). Carbaryl had no negative effects on embryonic development or hatching rate up to concentrations almost 1,000 times the median effect concentration (EC 50 ) of neonate survival in acute tests. Fenoxycarb, however, had a significant dose-related effect by delaying or completely stopping the hatching process and caused severe abnormalities in developing individuals. Both pesticides had significant negative effects on survival and reproduction of the hatchlings. These results indicate that, in addition to inducing mortality of active individuals, pesticides can affect zooplankton communities by altering hatching dynamics and life history traits of hatched individuals. We briefly discuss how such pollution induced changes in the benthic-pelagic coupling could translate into transgenerational effects impacting ecological and evolutionary dynamics.

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Section: Impact Of Pesticides On Hatching Growth and Reproductionsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 98%

Pesticide exposure impacts not only hatching of dormant eggs, but also hatchling survival and performance in the water flea Daphnia magna

et al. 2013

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“…The EC 50 values are reported in Table 2; effects were highly reproducible across experiments (coefficient of variation, CV %, is 10.5 % and 7.0 % for DEG and SDS, respectively). Hatching has been extensively used for measuring the effects of toxicants (Go et al 1991;Migliore et al 1997;Carballo et al 2002;Sarabia et al 2003Sarabia et al , 2008Varó et al 2006) and the use of the hatching rate as endpoint criterion, seems acceptable, particularly for toxicity screening assays (Nunes et al 2006), although differences in response and sensitivity to potentially toxic compounds were found among and within Artemia strains, mainly due to differences in cyst structure and physiology (Sarabia et al 2008). The differences in experimental design can also affect results (e.g.…”

Section: Resultsmentioning

confidence: 99%

“…Caldwell et al (2003) compared the hatching success (as enumeration of random chosen subsamples of hatched nauplii) and larval mortality (48 and 72 h) of A. salina exposed to diatom extracts or aldehydes, finding the hatching assay as the least sensitive test. Varó et al (2006), Brix et al (2006) and Sarabia et al (2003Sarabia et al ( , 2008 reported no adverse effects of pesticide or metals on Artemia hatching by counting the number of nauplii hatched from a known number of cysts.…”

mentioning

confidence: 99%

Can Artemia Hatching Assay Be a (Sensitive) Alternative Tool to Acute Toxicity Test?

Rotini

Manfra

Canepa

et al. 2015

Bull Environ Contam Toxicol

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Artemia sp. is extensively used in ecotoxicity testing, despite criticisms inherent to both acute and long-term tests. Alternative endpoints and procedures should be considered to support the use of this biological model. The hatching process comprises several developmental steps and the cyst hatchability seems acceptable as endpoint criterion. In this study, we assessed the reliability of the hatching assay on A. franciscana by comparing with acute and long-term mortality tests, using two chemicals: Diethylene Glycol (DEG), Sodium Dodecyl Sulphate (SDS). Both DEG and SDS tests demonstrated a dose dependent hatching inhibition. The hatching test resulted more sensitive than acute mortality test and less sensitive than the long-term one. Results demonstrate the reliability and high sensitivity of this hatching assay on a short time lag and support its useful application in first-tier risk assessment procedures.

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“…However, many studies have shown that either absence or excess of zinc can lead to toxicity. In marine organisms, an imbalance can cause physiological problems, such as decreased growth or increased mortality of macroalgae (Amado Filho et al 1997) and perturbations of reproduction and fecundity in crustaceans (Hook and Fisher 2002;Sarabia et al 2008). For molluscs such as the oyster Crassostrea gigas or the mussel Perna perna, effects on adults and larvae malformations or mortality have been observed (Brereton et al 1973;Jorge and Moreira 2005).…”

mentioning

confidence: 99%

Impact of a Sacrificial Anode as Assessed by Zinc Accumulation in Different Organs of the Oyster Crassostrea gigas: Results from Long- and Short-Term Laboratory Tests

Caplat

Mottin

Lebel

et al. 2011

Arch Environ Contam Toxicol

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Sacrificial anodes made of zinc are currently used in marine environments to mitigate marine corrosion as part of CP systems of immerged metallic structures. The aim of this work was to study zinc bioconcentration in the oyster Crassostrea gigas by performing two in vivo tests during different time periods and at different zinc concentrations. The first test was conducted during a period of 10 weeks at a concentration of 0.53 ± 0.04 mg Zn L(-1) to simulate long-term exposure, and a second test was conducted during a 168-hour period at a concentration of 10.2 ± 1.2 mg Zn L(-1) to reproduce short-term exposure. In these experiments, the zinc source was an electrochemical device that included a sacrificial anode to mimic the in situ conditions. During the first 14 days of the long-term experiment, digestive glands of C oysters exhibited bioaccumulation of zinc that varied according to the oysters' reproductive cycle. Both a bioconcentration factor (BCF) of ≤ 13,397 and a zinc accumulation percentage of +297% of zinc occurred in this organ after 10 weeks. The results obtained from the short-term test showed a lower BCF of 405 but a faster bioaccumulation of zinc (starting from the first day) in the same organ. No mortality was observed in long-term assay, but 81.8% of the oysters died at the end of the short-term assay. These results demonstrate the great capacity of C. gigas to accumulate zinc released from the anode, especially when low concentrations are released, as in the case of anode dissolution used as CP. This study confirmed the necessity to monitor this zinc-contamination source in marine environments in relation to the usual oyster consumption by humans (especially in France). No implication for human health of this zinc-contamination source was demonstrated until now, and this was not the purpose of this study; however, zinc remains one of the most abundant nutritionally essential elements in the human body that may affect the human immune system at high-level uptake.

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Sublethal zinc exposure has a detrimental effect on reproductive performance but not on the cyst hatching success of Artemia parthenogenetica

Cited by 22 publications

References 27 publications

Pesticide exposure impacts not only hatching of dormant eggs, but also hatchling survival and performance in the water flea Daphnia magna

Pesticide exposure impacts not only hatching of dormant eggs, but also hatchling survival and performance in the water flea Daphnia magna

Can Artemia Hatching Assay Be a (Sensitive) Alternative Tool to Acute Toxicity Test?

Impact of a Sacrificial Anode as Assessed by Zinc Accumulation in Different Organs of the Oyster Crassostrea gigas: Results from Long- and Short-Term Laboratory Tests

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