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20231224191658.0 |
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231224s2016 xx |||||o 00| ||eng c |
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|a 10.1007/s10646-016-1660-8
|2 doi
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|a pubmed24n0865.xml
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|a (DE-627)NLM259659274
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|a (NLM)27106013
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Vitiello, V
|e verfasserin
|4 aut
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| 245 |
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|a Cold storage of Acartia tonsa eggs
|b a practical use in ecotoxicological studies
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|c 2016
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 06.01.2017
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a The calanoid copepod Acartia tonsa has been recommended as a marine organism for ecotoxicological tests due to its wide distribution, short life cycle and high productivity. This species is used in acute and chronic toxicity tests to assess water and sediment quality; egg hatching success and the survival of the first larval stages are considered endpoints. Toxicity test protocols require a large number of organisms and an appropriate culture system. Eggs stored under conditions that delay hatching could ensure sufficient quantities of biological materials for ecotoxicological tests. In the current study early-spawned eggs were stored at 3 °C (±1) up to 240 days and their hatching success was evaluated on a monthly basis. Our results showed that the percentage of hatching success for eggs stored for 30 days was >80 % and decreased by about 8 % for every 20 days of storage, up to 120 days. A further increase of time in cold storage brought about a significant reduction, in statistical term, of hatching success compared with the control group (43.69 ± 22.19 %). Almost 50 % of eggs hatched or died during the cold storage period, with more than 80 % lost after periods longer than 150 days. To verify the suitability of stored eggs for toxicity test, 48 h acute tests were performed using nickel chloride as a referent toxicant. Eggs stored for 30, 60, 90 and 120 days gave EC50 values ranging from 0.130 to 0.221 mg L(-1), similar to the value recorded for early-spawned eggs, suggesting that these eggs can be used for ecotoxicological tests. Our results open new possibilities for a wider use of the Mediterranean strain of A. tonsa copepod for ecotoxicological tests
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|a Journal Article
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|a Acute test
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|a Copepod
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|a Egg hatching success
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| 650 |
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4 |
|a Egg viability
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| 650 |
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|a Water Pollutants, Chemical
|2 NLM
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| 700 |
1 |
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|a Zhou, C
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Scuderi, A
|e verfasserin
|4 aut
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| 700 |
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|a Pellegrini, D
|e verfasserin
|4 aut
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| 700 |
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|a Buttino, I
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Ecotoxicology (London, England)
|d 1992
|g 25(2016), 5 vom: 01. Juli, Seite 1033-9
|w (DE-627)NLM098212214
|x 1573-3017
|7 nnns
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| 773 |
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|g volume:25
|g year:2016
|g number:5
|g day:01
|g month:07
|g pages:1033-9
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|u http://dx.doi.org/10.1007/s10646-016-1660-8
|3 Volltext
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