Low salinity effects on the fertilization and settlement of post veliger larvae in the limpet Cellana grata SCOPUS KCI

Title
Low salinity effects on the fertilization and settlement of post veliger larvae in the limpet Cellana grata
Author(s)
Yoon, S.-J.; Jeong, J.H.; Kim, Y.-B.
Publication Year
2015
Abstract
The effects of low salinity (fertilization success and larval survival) on the limpet Cellana grata were studied at early stages of development using the marine bioassay technique. It was shown that, under normal conditions for development from fertilization to the post veliger stage, the salinity must be not less than 20.0~35.0 psu. However, the fertilization rate and larval survival of C. grata was obviously reduced at 5.0 psu and 10.0 psu, respectively. Mass mortality was estimated to occur at <20.0 psu (48-h EC50 = 19.54 psu) and the survival rate of normal veliger larvae decreased with experimental time during exposure. No observed effective concentration (NOEC) and lowest observed effect concentration (LOEC) of post veliger were estimated at 30.0 psu and 25.0 psu, respectively, during 48-h exposure. The tolerance limits of the test species to salinity revealed various concentration ranges of salinity, which may reflect the physiology and ecology of the initial development stages of C. grata. These results demonstrate that reduced salinity is detrimental to the reproductive success and larval survival of C. grata, and if salinity is lowered by natural or anthropogenic sources during spawning, this would lead to decreased reproductive success and larval settlement. © 2015, Korea Ocean Research and Development Institute. All rights reserved.
ISSN
1598-141X
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/2579
DOI
10.4217/OPR.2015.37.1.037
Bibliographic Citation
Ocean and Polar Research, v.37, no.1, pp.37 - 47, 2015
Publisher
Korea Ocean Research and Development Institute
Subject
bioassay; experimental study; fertilization (reproduction); larval settlement; marine ecosystem; salinity; snail; survival; Cellana grata
Keywords
Fertilization; Larval settlement; Limpet cellana grata; Low salinity effect; Post veliger larva
Type
Article
Language
Korean
Document Type
Article
Publisher
Korea Ocean Research and Development Institute
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