2013
DOI: 10.1242/jeb.084228
|View full text |Cite
|
Sign up to set email alerts
|

Uptake, handling, and excretion of Na+ and Cl- from the diet in vivo in freshwater and seawater-acclimated killifish, Fundulus heteroclitus, an agastric teleost

Abstract: Summary A radiotracer approach using diets labeled with 22Na+, 36Cl-, and [14C]polyethylene-4000 (PEG-4000) was employed to investigate the role of intestinal uptake from the food in ion homeostasis in the killifish (Fundulus heteroclitus). This euryhaline teleost lacks both a stomach and a capacity for Cl- uptake at the gills in freshwater. PEG-4000 appearance in the water was minimal up to 10-11 h post-feeding, indicating the virtual absence of Na+ and Cl- loss in the faeces up until this time… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1

Citation Types

0
2
0

Year Published

2014
2014
2021
2021

Publication Types

Select...
5
1

Relationship

0
6

Authors

Journals

citations
Cited by 6 publications
(2 citation statements)
references
References 43 publications
0
2
0
Order By: Relevance
“…6, 8), and deserves future investigation. A comparable discrepancy has also been seen in the freshwater killifish, Fundulus heteroclitus (Bucking et al 2013). One possible explanation is the occurrence of a net secretion of HCO 3 − as seen in most seawater and some freshwater teleosts (Grosell 2011).…”
Section: Intestinal Ionoregulationmentioning
confidence: 51%
“…6, 8), and deserves future investigation. A comparable discrepancy has also been seen in the freshwater killifish, Fundulus heteroclitus (Bucking et al 2013). One possible explanation is the occurrence of a net secretion of HCO 3 − as seen in most seawater and some freshwater teleosts (Grosell 2011).…”
Section: Intestinal Ionoregulationmentioning
confidence: 51%
“…Further, innovations in commercial feed, including supplementation with a variety of electrolytes will increase pressures on renal function. Indeed, dietary Na + , Cl − , Ca 2+ , Mg 2+, and phosphate all have potential implications for growth, health status, acid-base balance, and osmoregulation in fish ( Salman and Eddy, 1988;Sugiura and Ferraris, 2004;Bucking and Wood, 2007;Ferreira and Baldisserotto, 2007;Cooper and Wilson, 2008;Bucking et al, 2010;Wood and Bucking, 2011;Bucking et al, 2013;Kodzhahinchev et al, 2017). Thus, increasing our mechanistic knowledge of the kidney's role in osmoregulation from organismal through molecular levels will be critical in addressing these issues, and thereby protecting and promoting aquacultural productivity of euryhaline species such as eel, tilapia and salmonids.…”
Section: Comparative Studies On Mammals and Teleostsmentioning
confidence: 99%