Environmental DNA emission by two carangid fishes in single and mixed-species tanks View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2021-11-06

AUTHORS

Hiroaki Murakami, Reiji Masuda, Satoshi Yamamoto, Toshifumi Minamoto, Yoh Yamashita

ABSTRACT

Environmental DNA (eDNA) has been utilized for the detection of target species, and its application in biomass estimation has great potential. However, there are several factors that may hinder this application, such as species-specific eDNA emission, interspecific interactions, and the effect of feeding. In this experiment, we quantified eDNA emission in the striped jack Pseudocaranx dentex and the jack mackerel Trachurus japonicus in single- and mixed-species tanks for 10 days over a 12-day experimental period. eDNA concentrations of both of these species peaked on the first day of the experiment and later stabilized. The linear mixed-effects model revealed that the temporal factor, being highest immediately after their introduction into experimental tanks, had significant effects on eDNA concentration, whereas fish species and feeding factors did not. Rearing conditions of mixed or single species were not significant either. Taken together with previous studies, eDNA emission may be equal in fishes that have similar morphology and behavior, and their interspecific interaction may be negligible for eDNA detection. More... »

PAGES

55-62

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s12562-021-01565-y

DOI

http://dx.doi.org/10.1007/s12562-021-01565-y

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1142417949


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