The Effect of Exposure to Suspended Sediment in Mortality of Corbicula Fluminea (Müller, 1774) (Bivalvia: Corbiculidae)

Neves Fernando F.; Lavrador Marco A. S.; Costa Álvaro S.; Avelar Wagner E. P.

doi:doi:10.11648/j.ajls.20140203.14

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The Effect of Exposure to Suspended Sediment in Mortality of Corbicula Fluminea (Müller, 1774) (Bivalvia: Corbiculidae)

Neves Fernando F., Lavrador Marco A. S., Costa Álvaro S., Avelar Wagner E. P.

Published in American Journal of Life Sciences (Volume 2, Issue 3)

Received: 14 May 2014 Accepted: 3 June 2014 Published: 10 June 2014

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Abstract

The erosion of rural watersheds, especially in the rainy season, deposit sediments in the waterways, and subsequently brings about one of the most important physicochemical changes in our water resources: the rise in their turbidity parameters. For freshwater bivalves, changes in water turbidity have a significant impact because they are filter feeders and depend on stable water conditions to regulate their physiological functions. Our preliminary studies have already demonstrated Corbicula fluminea`s (Müller 1774) intolerance to increases the turbidity of the water. In the current paper, we conducted research in the watersheds of the Pardo and Mogi rivers (State of São Paulo - Brazil). Under laboratory conditions, we did not observe statistical differences in the mortality rate of C. fluminea to turbidity levels of 150, 200 and 250 nephelometric turbidity units (NTU). Mortality rates of approximately 50% were observed when the specimens were exposed to these conditions for 96 to 120 hours. Results indicate that the species is sensitive or even intolerant to changes in turbidity, caused by suspended sediment, which explains the high mortality and the seasonal decline in the population of this species during rainy periods. The methodology used in this research, supported by the results produced, may indicate a new way of studying the decline of molluscan biodiversity that has been observed throughout Brazil.

Published in	American Journal of Life Sciences (Volume 2, Issue 3)
DOI	10.11648/j.ajls.20140203.14
Page(s)	150-154
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2014. Published by Science Publishing Group

Keywords

Pollution, Turbidity, Biodiversity, Riparian Vegetation, Mollusca

References

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Neves Fernando F., Lavrador Marco A. S., Costa Álvaro S., Avelar Wagner E. P. (2014). The Effect of Exposure to Suspended Sediment in Mortality of Corbicula Fluminea (Müller, 1774) (Bivalvia: Corbiculidae). American Journal of Life Sciences, 2(3), 150-154. https://doi.org/10.11648/j.ajls.20140203.14

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ACS Style

Neves Fernando F.; Lavrador Marco A. S.; Costa Álvaro S.; Avelar Wagner E. P. The Effect of Exposure to Suspended Sediment in Mortality of Corbicula Fluminea (Müller, 1774) (Bivalvia: Corbiculidae). Am. J. Life Sci. 2014, 2(3), 150-154. doi: 10.11648/j.ajls.20140203.14

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AMA Style

Neves Fernando F., Lavrador Marco A. S., Costa Álvaro S., Avelar Wagner E. P. The Effect of Exposure to Suspended Sediment in Mortality of Corbicula Fluminea (Müller, 1774) (Bivalvia: Corbiculidae). Am J Life Sci. 2014;2(3):150-154. doi: 10.11648/j.ajls.20140203.14

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@article{10.11648/j.ajls.20140203.14,
  author = {Neves Fernando F. and Lavrador Marco A. S. and Costa Álvaro S. and Avelar Wagner E. P.},
  title = {The Effect of Exposure to Suspended Sediment in Mortality of Corbicula Fluminea (Müller, 1774) (Bivalvia: Corbiculidae)},
  journal = {American Journal of Life Sciences},
  volume = {2},
  number = {3},
  pages = {150-154},
  doi = {10.11648/j.ajls.20140203.14},
  url = {https://doi.org/10.11648/j.ajls.20140203.14},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajls.20140203.14},
  abstract = {The erosion of rural watersheds, especially in the rainy season, deposit sediments in the waterways, and subsequently brings about one of the most important physicochemical changes in our water resources: the rise in their turbidity parameters. For freshwater bivalves, changes in water turbidity have a significant impact because they are filter feeders and depend on stable water conditions to regulate their physiological functions. Our preliminary studies have already demonstrated Corbicula fluminea`s (Müller 1774) intolerance to increases the turbidity of the water. In the current paper, we conducted research in the watersheds of the Pardo and Mogi rivers (State of São Paulo - Brazil). Under laboratory conditions, we did not observe statistical differences in the mortality rate of C. fluminea to turbidity levels of 150, 200 and 250 nephelometric turbidity units (NTU). Mortality rates of approximately 50% were observed when the specimens were exposed to these conditions for 96 to 120 hours. Results indicate that the species is sensitive or even intolerant to changes in turbidity, caused by suspended sediment, which explains the high mortality and the seasonal decline in the population of this species during rainy periods. The methodology used in this research, supported by the results produced, may indicate a new way of studying the decline of molluscan biodiversity that has been observed throughout Brazil.},
 year = {2014}
}

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TY - JOUR
T1 - The Effect of Exposure to Suspended Sediment in Mortality of Corbicula Fluminea (Müller, 1774) (Bivalvia: Corbiculidae)
AU - Neves Fernando F.
AU - Lavrador Marco A. S.
AU - Costa Álvaro S.
AU - Avelar Wagner E. P.
Y1 - 2014/06/10
PY - 2014
N1 - https://doi.org/10.11648/j.ajls.20140203.14
DO - 10.11648/j.ajls.20140203.14
T2 - American Journal of Life Sciences
JF - American Journal of Life Sciences
JO - American Journal of Life Sciences
SP - 150
EP - 154
PB - Science Publishing Group
SN - 2328-5737
UR - https://doi.org/10.11648/j.ajls.20140203.14
AB - The erosion of rural watersheds, especially in the rainy season, deposit sediments in the waterways, and subsequently brings about one of the most important physicochemical changes in our water resources: the rise in their turbidity parameters. For freshwater bivalves, changes in water turbidity have a significant impact because they are filter feeders and depend on stable water conditions to regulate their physiological functions. Our preliminary studies have already demonstrated Corbicula fluminea`s (Müller 1774) intolerance to increases the turbidity of the water. In the current paper, we conducted research in the watersheds of the Pardo and Mogi rivers (State of São Paulo - Brazil). Under laboratory conditions, we did not observe statistical differences in the mortality rate of C. fluminea to turbidity levels of 150, 200 and 250 nephelometric turbidity units (NTU). Mortality rates of approximately 50% were observed when the specimens were exposed to these conditions for 96 to 120 hours. Results indicate that the species is sensitive or even intolerant to changes in turbidity, caused by suspended sediment, which explains the high mortality and the seasonal decline in the population of this species during rainy periods. The methodology used in this research, supported by the results produced, may indicate a new way of studying the decline of molluscan biodiversity that has been observed throughout Brazil.
VL - 2
IS - 3
ER -

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Author Information

Neves Fernando F.

Department of Biology, Faculty of Philosophy, Sciences and Languages of Ribeir?o Preto, University of S?o Paulo, Brazil
Lavrador Marco A. S.

Department of Physics and Chemistry of the Faculty of Pharmaceutical Sciences of Ribeir?o Preto, University of S?o Paulo, Brazil
Costa Álvaro S.
Avelar Wagner E. P.

Department of Biology, Faculty of Philosophy, Sciences and Languages of Ribeir?o Preto, University of S?o Paulo, Brazil

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Neves Fernando F., Lavrador Marco A. S., Costa Álvaro S., Avelar Wagner E. P. (2014). The Effect of Exposure to Suspended Sediment in Mortality of Corbicula Fluminea (Müller, 1774) (Bivalvia: Corbiculidae). American Journal of Life Sciences, 2(3), 150-154. https://doi.org/10.11648/j.ajls.20140203.14

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Neves Fernando F.; Lavrador Marco A. S.; Costa Álvaro S.; Avelar Wagner E. P. The Effect of Exposure to Suspended Sediment in Mortality of Corbicula Fluminea (Müller, 1774) (Bivalvia: Corbiculidae). Am. J. Life Sci. 2014, 2(3), 150-154. doi: 10.11648/j.ajls.20140203.14

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AMA Style

Neves Fernando F., Lavrador Marco A. S., Costa Álvaro S., Avelar Wagner E. P. The Effect of Exposure to Suspended Sediment in Mortality of Corbicula Fluminea (Müller, 1774) (Bivalvia: Corbiculidae). Am J Life Sci. 2014;2(3):150-154. doi: 10.11648/j.ajls.20140203.14

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@article{10.11648/j.ajls.20140203.14,
  author = {Neves Fernando F. and Lavrador Marco A. S. and Costa Álvaro S. and Avelar Wagner E. P.},
  title = {The Effect of Exposure to Suspended Sediment in Mortality of Corbicula Fluminea (Müller, 1774) (Bivalvia: Corbiculidae)},
  journal = {American Journal of Life Sciences},
  volume = {2},
  number = {3},
  pages = {150-154},
  doi = {10.11648/j.ajls.20140203.14},
  url = {https://doi.org/10.11648/j.ajls.20140203.14},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajls.20140203.14},
  abstract = {The erosion of rural watersheds, especially in the rainy season, deposit sediments in the waterways, and subsequently brings about one of the most important physicochemical changes in our water resources: the rise in their turbidity parameters. For freshwater bivalves, changes in water turbidity have a significant impact because they are filter feeders and depend on stable water conditions to regulate their physiological functions. Our preliminary studies have already demonstrated Corbicula fluminea`s (Müller 1774) intolerance to increases the turbidity of the water. In the current paper, we conducted research in the watersheds of the Pardo and Mogi rivers (State of São Paulo - Brazil). Under laboratory conditions, we did not observe statistical differences in the mortality rate of C. fluminea to turbidity levels of 150, 200 and 250 nephelometric turbidity units (NTU). Mortality rates of approximately 50% were observed when the specimens were exposed to these conditions for 96 to 120 hours. Results indicate that the species is sensitive or even intolerant to changes in turbidity, caused by suspended sediment, which explains the high mortality and the seasonal decline in the population of this species during rainy periods. The methodology used in this research, supported by the results produced, may indicate a new way of studying the decline of molluscan biodiversity that has been observed throughout Brazil.},
 year = {2014}
}

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