Influence of temperature and salinity on embryonic development ofParacentrotus lividus (Lmk, 1816)

Bressan, M.; Marin, María Gabriella; Brunetti, Riccardo

doi:10.1007/bf02329312

Cited by 22 publications

(7 citation statements)

References 18 publications

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“…Preparing the test solutions the final dilution factor of FSW was always maintained at 10% concentration, approximately corresponding to a final salinity of 34% that is near to the value selected by His et al (1999) for tests on fertilised eggs of P. lividus and it is well within the range of salinity ''tolerance'' (33-38%) for sea urchin embryos and larvae (Bressan et al 1995). In previous experiments it was also verified that this procedure doesn't affect the results of the tests.…”

Section: Test Solutionsmentioning

confidence: 99%

Cadmium, lead and their mixtures with copper: Paracentrotus lividus embryotoxicity assessment, prediction, and offspring quality evaluation

2010

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The aim of this research was to assess the combined effects of three heavy metals (copper, lead, cadmium) on the fertilization and offspring quality of the sea urchin Paracentrotus lividus at EC50, NOEL, and EC1 concentrations. The observed data were compared with the predictions derived from approaches of Concentration Addition (CA) and Independent Action (IA) in order to evaluate the proper prediction of the observed mixture toxic effect. The P. lividus embryotoxicity of trace metals decreases as follows: Cu > Pb > Cd at all toxicity concentration tested. EC50 mixture revealed less toxic only than Cu; EC50 was 0.80 (± 0.07) mg/l, the offspring malformations were mainly P1 type (skeletal alterations) up to 20% mixture concentration, and P2 type from 70% concentration. The NOEL and EC1 mixtures evidenced that all compounds contribute to the overall toxicity, even if present at low concentrations: the former EC50 was 0.532 (± 0.058) mg/l and the latter was 1.081 (± 0.240) mg/l. The developmental defects observed were mainly P1 type in both mixtures. Both CA and IA models did not accurately predict mixture toxicity for EC50 and NOEL mixtures. Instead, EC1 mixture effects seemed well represented by the IA model. The protective action of the CA model, although quite accurate when applied to simple biological systems like algae and bacteria, but failed to represent the worst-case in this study with more complex organisms. It would be useful to introduce in the models one or more factors that take into account the complexity of these biological systems.

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Section: Test Solutionsmentioning

confidence: 99%

Cadmium, lead and their mixtures with copper: Paracentrotus lividus embryotoxicity assessment, prediction, and offspring quality evaluation

2010

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“…Experimental concentrations were chosen on the basis of preliminary trials and on literature data (Foster et al 1998;Hartgers et al 1999;His and Seaman 1993;Key and Fulton 1993;Mansueto et al 1993;Whiting et al 1996). In the preparation of test solutions the final dilution factor of FSW was always maintained at 10%, approximately corresponding to a final salinity of 34% that is near to the value selected by His et al (1999) for their tests on fertilized eggs of P. lividus and it is well within the range of salinity ''tolerance'' (33-38%) for sea urchin embryos and larvae (Bressan et al 1995). In previous experiments it was also verified that this procedure did not affect the results of the tests.…”

Section: Test Solutionsmentioning

confidence: 99%

Toxic effects of pentachlorophenol, azinphos-methyl and chlorpyrifos on the development of Paracentrotus lividus embryos

et al. 2011

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The application of many current-use pesticides has increased after the disuse of persistent, bioaccumulative or toxic ones as DDT or chlordane. Many of the used pesticides are considered less dangerous towards the environment for their physico-chemical properties. This study investigated the toxic effects of three current-use pesticides, pentachlorophenol (PCP), azinphos-methyl (AZM), and chlorpyrifos, on Mediterranean sea urchin Paracentrotus lividus early development and offspring quality. The experimental results showed that the most toxic pesticides were PCP and AZM at EC50 level. Nevertheless at low concentration PCP resulted the less toxic compound and showed EC1 value more protective than NOEC. PCP at high concentration seemed to modify cytoskeleton assembly, while at low concentrations, it could alter the deposition of the larval skeleton. OPs at low concentrations until 300 μg/l showed a similar toxicological behaviour with a trend corresponding to the pesticide concentrations. At high concentration (500 μg/l) the effect mainly observed was the embryos pre-larval arrest. This investigation highlighted the relevance to evaluate, in coastal seawaters, the levels of the used pesticides to understand the real impact on benthic populations mainly in sites characterized by intensive agriculture or floriculture activities, such as the coastal areas of the Mediterranean Sea.

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“…Some studies concluded that temperature is one of the most limiting factors among the abiotic parameters that have influence on earliest stages of development such as fertilised eggs, zygotes and cleavage (Andronikov, 1975;Bressan et al, 1995;Swewell and Young, 1999;Sarifudin et al, 2016). Fujisawa and Shigei (1990) reported that temperature dependence is not universal but rather species specific, especially in early larval development stages.…”

Section: Discussionmentioning

confidence: 99%

Influence of temperature variation on embryonic and early larval development of a commercially important tropical sea urchin Tripneustes gratilla (Linnaeus, 1758)

et al. 2018

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The present study investigated the influence of different temperature levels (16, 19, 22, 25, 28, 31 and 34 o C) on embryonic and early larval development of the tropical sea urchin, Tripneustes gratilla (Linnaeus, 1758) in a controlled laboratory condition. The critical lower and higher temperature for embryonic development was found to be 16 and 34 o C, respectively. Embryos reared in these temperatures exhibited 100% abnormality within 48 h post-insemination. The time required to reach embryonic and larval stages was increased with temperature from 28 o C followed by 31, 25, 22 and 19 o C. The developmental time of 2-cell to 4-arm pluteus larvae showed significant (p<0.05) differences. The survival (%) of larvae at the prism, 2-arm and 4-arm stages were observed as dissimilar from 22 to 34 o C, and the highest values (100% or near 100%) were found at 25 and 28 o C. The morphometric measurements from prism to 4-arm pluteus larvae at different temperatures differed significantly (p<0.05). However among the temperatures evaluated, 28 o C was found as the best temperature for better growth and development of larvae at all stages. The findings of the study would help to develop captive breeding and seed production programmes for commercial aquaculture of the species.

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Influence of temperature and salinity on embryonic development ofParacentrotus lividus (Lmk, 1816)

Cited by 22 publications

References 18 publications

Cadmium, lead and their mixtures with copper: Paracentrotus lividus embryotoxicity assessment, prediction, and offspring quality evaluation

Cadmium, lead and their mixtures with copper: Paracentrotus lividus embryotoxicity assessment, prediction, and offspring quality evaluation

Toxic effects of pentachlorophenol, azinphos-methyl and chlorpyrifos on the development of Paracentrotus lividus embryos

Influence of temperature variation on embryonic and early larval development of a commercially important tropical sea urchin Tripneustes gratilla (Linnaeus, 1758)

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