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Fish physiology and biochemistry
Aug, 2020;46 (4): 1451-1460.

Exposure to carbamate fungicide iodocarb does not affect reproductive behavior or milt volumes in precocious male brown trout (Salmo trutta L.) parr.

K Håkan Olsén, Hanna L Olsén
Author Information
  1. K Håkan Olsén: School of Natural Science, Technology and Environmental Studies, Södertörn University, SE-141 89, Huddinge, Sweden. hakan.olsen@sh.se.
  2. Hanna L Olsén: School of Natural Science, Technology and Environmental Studies, Södertörn University, SE-141 89, Huddinge, Sweden.
PMID: 32296996 DOI: 10.1007/s10695-020-00803-x

Abstract

Previous studies with olfactory-disturbing pesticides resulted after exposure in disturbed behavior and physiology in fish. In the present experiment, reproductive behavior and milt volumes of precocious brown trout (Salmo trutta L.) male parr were studied in a large stream aquarium after exposure to the olfactory-disturbing fungicide 15 μg l IPBC (iodocarb; 3-iodo-2-propynyl butyl carbamate) for 96 h. The statistical analyses did not reveal any significant differences for time attending females between controls and IPBC-exposed males. Furthermore, there were no significant differences in milt volumes. However, when taking all fish into consideration, there were significant differences in milt volumes between parr that had been attending females and those had not been attending females. Controls that had attended females had significantly higher milt volumes than controls or IPBC-exposed males that had not attended females. Taking all control and IPBC parr into consideration, there was a statistically significant positive correlation between time attended females and volume of milt and gonadosomatic index (GSI), respectively. In summary, 15 μg l IPBC did not have any significant effects on mature male parr reproductive behavior and milt volumes.

Keywords

Iodocarb Milt volumes Olfaction Reproductive behavior Salmo trutta

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Grants

  1. 87/03/the Foundation for Baltic and Eastern European Studies (Östersjöstiftelsen).

MeSH Term

Analysis of Variance
Animals
Antifungal Agents
Carbamates
Female
Male
Random Allocation
Sexual Behavior, Animal
Statistics, Nonparametric
Trout

Chemicals

Antifungal Agents
Carbamates
3-iodo-2-propynylbutylcarbamate
Journal Article
Article has an altmetric score of 1

Word Cloud

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