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Osmoregulatory capacity and muscle water control facing salinity stress of the Amazon fish Astronotus ocellatus (Cichlidae)

Dates

Publication Date
Start Date
2014-08-04
End Date
2014-08-15

Citation

Gutierre, S.M.M., Schulte, J.M., Schofield, P.J., and Prodocimo, V., 2017, Osmoregulatory capacity and muscle water control facing salinity stress of the Amazon fish Astronotus ocellatus (Cichlidae): U.S. Geological Survey data release, https://doi.org/10.5066/F77P8WK3.

Summary

Scientific tools such as physiological analysis are fundamental to understand invasive species tolerances and responses to different environmental conditions. The Amazon fish Astronotus ocellatus, popularly known as oscar, was introduced worldwide and became invasive in many places. Specimens of A. ocellatus were abruptly submitted to salt stress of 14 and 20 ppt, for 3 and 8 hours to analyze its plasma osmolality and muscle wet weight change. Fish in 14 ppt presented no osmolality distress even after 8 hours. In 20 ppt a slight increase (about 10%) in plasma osmolality was observed for both times of exposure. Fish muscle slices submitted to hyper-osmotic saline displayed decreased weight after 75 minutes, and slices submitted to hypo-osmotic [...]

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Sizes oscar.csv 706 Bytes
Osmolality oscar.csv 742 Bytes
Muscle weight oscar.csv 5.92 KB
Astronotus_ocellatus_salinity_metadata.xml
Original FGDC Metadata

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20.35 KB

Purpose

Data were obtained to better understand salinity tolerance and physiology of Astronotus ocellatus.

Communities

  • USGS Data Release Products
  • USGS Wetland and Aquatic Research Center

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DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/F77P8WK3

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