PMID- 32498212
OWN - NLM
STAT- MEDLINE
DCOM- 20200609
LR  - 20200609
IS  - 1879-1026 (Electronic)
IS  - 0048-9697 (Linking)
VI  - 727
DP  - 2020 Jul 20
TI  - A novel index based on planktonic copepod reproductive traits as a tool for 
      marine ecotoxicology studies.
PG  - 138621
LID - S0048-9697(20)32137-9 [pii]
LID - 10.1016/j.scitotenv.2020.138621 [doi]
AB  - Copepods are excellent bioindicators of climate change and ecosystem pollution in 
      anthropized coastal waters. This work reviewed the results of previous studies 
      examining changes in egg production rate (EPR), hatching success (HS), and 
      nauplius survival rate (NSR) in natural conditions and in the presence of 
      pollutants, including heavy metals and organic contaminants such as polycyclic 
      aromatic hydrocarbons (PAHs) and persistent organic pollutants (POPs). At high 
      concentrations, cadmium and silver induce an increase in EPR in the copepods 
      Acartia tonsa and Acartia hudsonica, while exposure to mercury decreases EPR in 
      adults by 50%. All three metals affect HS, with mercury inducing a stronger 
      effect than cadmium and silver. Cadmium affects reproductive traits in 
      Centropages ponticus, decreasing EPR and particularly HS. Furthermore, copper and 
      chromium at high concentrations induce significant decreases in eggs per female 
      in Notodiaptomus conifer. In terms of organic contaminant and Polycyclic Aromatic 
      Hydrocarbons (PAHs), Eurytemora affinis is reported to be affected by 
      naphthalene, 2-methylnaphthalene, 2,6-dimethylnaphthalene, and 
      2,3,5-trimethylnaphthalene and can thus be used in ecotoxicity studies, but only 
      if the exposure time is high. Acartia tonsa shows significant reductions in EPR 
      and HS at high concentrations of fluoranthene, phenanthrene, and pyrene. However, 
      the response to Persistent Organic Pollutants (POPs) such as pentachlorophenol 
      (PCP) and 1,2-dichlorobenzene (DCB) differs. In E. affinis, EPR increases with 
      DCB, but HS falls to <1%. EPR increases when the species is exposed overnight, 
      but HS remains low in the presence of DCB. Based on these results, we developed a 
      novel copepod reproductive trait index (CRT-Index) for use in marine 
      ecotoxicology surveys and tested in some simple cases. We show that copepods are 
      good candidates as models for ecotoxicology studies, in particular using 
      reproductive traits (EPR, HS and NSR) because of their sensitivity to a wide 
      range or pollutants.
CI  - Copyright (c) 2020 Elsevier B.V. All rights reserved.
FAU - Hussain, Mohamed Bakr
AU  - Hussain MB
AD  - Department of Biological and Environmental Sciences, College of Arts and 
      Sciences, Qatar University, PO Box 2713, Doha, Qatar.
FAU - Laabir, Mohamed
AU  - Laabir M
AD  - Marbec, University of Montpellier, IRD, Ifremer, CNRS, 34 095 Montpellier Cedex 
      5, France.
FAU - Daly Yahia, Mohamed Nejib
AU  - Daly Yahia MN
AD  - Department of Biological and Environmental Sciences, College of Arts and 
      Sciences, Qatar University, PO Box 2713, Doha, Qatar. Electronic address: 
      nejibdaly@qu.edu.qa.
LA  - eng
PT  - Journal Article
PT  - Review
DEP - 20200417
PL  - Netherlands
TA  - Sci Total Environ
JT  - The Science of the total environment
JID - 0330500
RN  - 0 (Water Pollutants, Chemical)
SB  - IM
MH  - Animals
MH  - *Copepoda
MH  - Ecosystem
MH  - Ecotoxicology
MH  - Plankton
MH  - Water Pollutants, Chemical
OTO - NOTNLM
OT  - Ecotoxicology
OT  - Planktonic copepods
OT  - Reproductive traits
COIS- Declaration of competing interest The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2020/06/06 06:00
MHDA- 2020/06/10 06:00
CRDT- 2020/06/06 06:00
PHST- 2019/12/07 00:00 [received]
PHST- 2020/04/08 00:00 [revised]
PHST- 2020/04/08 00:00 [accepted]
PHST- 2020/06/06 06:00 [entrez]
PHST- 2020/06/06 06:00 [pubmed]
PHST- 2020/06/10 06:00 [medline]
AID - S0048-9697(20)32137-9 [pii]
AID - 10.1016/j.scitotenv.2020.138621 [doi]
PST - ppublish
SO  - Sci Total Environ. 2020 Jul 20;727:138621. doi: 10.1016/j.scitotenv.2020.138621. 
      Epub 2020 Apr 17.