Gill ionic transport, acid-base regulation, and nitrogen excretion

Pung Pung Hwang, Li Yih Lin

研究成果: 書貢獻/報告類型章节

26 引文 (Scopus)

摘要

All vertebrates have to regulate their intracellular ionic compositions for the normal operation of cellular and biochemical reactions. Compared to terrestrial animals, aquatic vertebrates are faced with more challenging osmoregulatory environments with fluctuating ionic compositions and osmolarities, which directly affect the homeostasis of body fluids. Aquatic vertebrates have developed different strategies so that their body fluids can cope with the dramatic ionic and osmotic gradients found in aquatic environments. According to the fossil record, early vertebrates, hagfishes, are believed to have originated in a seawater (SW) environment, and some agnathan fish groups, lampreys, were the first invaders in freshwater (FW) (Halstead, 1985; Bartels and Potter, 2004; Evans and Claiborne, 2009). It was also proposed that lampreys and subsequent teleosts originally evolved in FW, and later some of them returned to SW (Halstead, 1985; Bartels and Potter, 2004; Evans and Claiborne, 2009). On the other hand, most extant chondrichthyan fishes are marine with very few FW species; however, no fossil record is available to clarify the early evolution of these cartilaginous species in FW (Halstead, 1985; Evans and Claiborne, 2009). Table 6.1 shows the concentrations of major solutes and osmolarity in plasma of different fishes in various aquatic environments. Following the early evolution of vertebrates, strategies dealing with body fluids also evolved from osmoconforming to osmo- and ionoregulating (Table 6.1). Hagfishes are osmoconformers with limited regulation of some divalent ions (Mg2+ and Ca2+). Lampreys are pioneers in developing osmoand ionoregulatory strategies, and teleosts are strict osmo- and ionoregulators. On the other hand, most marine chondrichthys are osmoconformers (slightly hyperosmotic to SW due to high plasma levels of urea and the counteracting solute, trimethylamine oxide) and ionoregulators, and the stenohaline FW stingrays (Potamotrygon sp.) are osmo- and ionoregulators with much reduced plasma levels of urea (Wood et al., 2002). Acid-base regulatory mechanisms achieved by apical Na+/H+ and Cl- /HCO- 3 exchangers in the transporting epithelia evolved early in primitive vertebrates, such as hagfishes. Lampreys were probably pioneers in evolving both ion absorption and secretory mechanisms other than the acid/base-linked Na+/Cl- uptake pathways that evolved in hagfishes.

原文英語
主出版物標題The Physiology of Fishes, Fourth Edition
發行者CRC Press/Balkema
頁面205-234
頁數30
ISBN(電子)9781439880319
ISBN(列印)9781439880302
出版狀態已發佈 - 2013 一月 1

指紋

Body fluids
Hagfishes
Seawater
Fish
Lampreys
Myxini
Vertebrates
Fresh Water
gills
Nitrogen
Petromyzontiformes
excretion
vertebrates
Plasmas
Acids
Urea
body fluids
acids
Body Fluids
nitrogen

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Biochemistry, Genetics and Molecular Biology(all)

引用此文

Hwang, P. P., & Lin, L. Y. (2013). Gill ionic transport, acid-base regulation, and nitrogen excretion. 於 The Physiology of Fishes, Fourth Edition (頁 205-234). CRC Press/Balkema.

Gill ionic transport, acid-base regulation, and nitrogen excretion. / Hwang, Pung Pung; Lin, Li Yih.

The Physiology of Fishes, Fourth Edition. CRC Press/Balkema, 2013. p. 205-234.

研究成果: 書貢獻/報告類型章节

Hwang, PP & Lin, LY 2013, Gill ionic transport, acid-base regulation, and nitrogen excretion. 於 The Physiology of Fishes, Fourth Edition. CRC Press/Balkema, 頁 205-234.
Hwang PP, Lin LY. Gill ionic transport, acid-base regulation, and nitrogen excretion. 於 The Physiology of Fishes, Fourth Edition. CRC Press/Balkema. 2013. p. 205-234
Hwang, Pung Pung ; Lin, Li Yih. / Gill ionic transport, acid-base regulation, and nitrogen excretion. The Physiology of Fishes, Fourth Edition. CRC Press/Balkema, 2013. 頁 205-234
@inbook{1ebff5f6db2a4f2caa4c94be863937be,
title = "Gill ionic transport, acid-base regulation, and nitrogen excretion",
abstract = "All vertebrates have to regulate their intracellular ionic compositions for the normal operation of cellular and biochemical reactions. Compared to terrestrial animals, aquatic vertebrates are faced with more challenging osmoregulatory environments with fluctuating ionic compositions and osmolarities, which directly affect the homeostasis of body fluids. Aquatic vertebrates have developed different strategies so that their body fluids can cope with the dramatic ionic and osmotic gradients found in aquatic environments. According to the fossil record, early vertebrates, hagfishes, are believed to have originated in a seawater (SW) environment, and some agnathan fish groups, lampreys, were the first invaders in freshwater (FW) (Halstead, 1985; Bartels and Potter, 2004; Evans and Claiborne, 2009). It was also proposed that lampreys and subsequent teleosts originally evolved in FW, and later some of them returned to SW (Halstead, 1985; Bartels and Potter, 2004; Evans and Claiborne, 2009). On the other hand, most extant chondrichthyan fishes are marine with very few FW species; however, no fossil record is available to clarify the early evolution of these cartilaginous species in FW (Halstead, 1985; Evans and Claiborne, 2009). Table 6.1 shows the concentrations of major solutes and osmolarity in plasma of different fishes in various aquatic environments. Following the early evolution of vertebrates, strategies dealing with body fluids also evolved from osmoconforming to osmo- and ionoregulating (Table 6.1). Hagfishes are osmoconformers with limited regulation of some divalent ions (Mg2+ and Ca2+). Lampreys are pioneers in developing osmoand ionoregulatory strategies, and teleosts are strict osmo- and ionoregulators. On the other hand, most marine chondrichthys are osmoconformers (slightly hyperosmotic to SW due to high plasma levels of urea and the counteracting solute, trimethylamine oxide) and ionoregulators, and the stenohaline FW stingrays (Potamotrygon sp.) are osmo- and ionoregulators with much reduced plasma levels of urea (Wood et al., 2002). Acid-base regulatory mechanisms achieved by apical Na+/H+ and Cl- /HCO- 3 exchangers in the transporting epithelia evolved early in primitive vertebrates, such as hagfishes. Lampreys were probably pioneers in evolving both ion absorption and secretory mechanisms other than the acid/base-linked Na+/Cl- uptake pathways that evolved in hagfishes.",
author = "Hwang, {Pung Pung} and Lin, {Li Yih}",
year = "2013",
month = "1",
day = "1",
language = "English",
isbn = "9781439880302",
pages = "205--234",
booktitle = "The Physiology of Fishes, Fourth Edition",
publisher = "CRC Press/Balkema",

}

TY - CHAP

T1 - Gill ionic transport, acid-base regulation, and nitrogen excretion

AU - Hwang, Pung Pung

AU - Lin, Li Yih

PY - 2013/1/1

Y1 - 2013/1/1

N2 - All vertebrates have to regulate their intracellular ionic compositions for the normal operation of cellular and biochemical reactions. Compared to terrestrial animals, aquatic vertebrates are faced with more challenging osmoregulatory environments with fluctuating ionic compositions and osmolarities, which directly affect the homeostasis of body fluids. Aquatic vertebrates have developed different strategies so that their body fluids can cope with the dramatic ionic and osmotic gradients found in aquatic environments. According to the fossil record, early vertebrates, hagfishes, are believed to have originated in a seawater (SW) environment, and some agnathan fish groups, lampreys, were the first invaders in freshwater (FW) (Halstead, 1985; Bartels and Potter, 2004; Evans and Claiborne, 2009). It was also proposed that lampreys and subsequent teleosts originally evolved in FW, and later some of them returned to SW (Halstead, 1985; Bartels and Potter, 2004; Evans and Claiborne, 2009). On the other hand, most extant chondrichthyan fishes are marine with very few FW species; however, no fossil record is available to clarify the early evolution of these cartilaginous species in FW (Halstead, 1985; Evans and Claiborne, 2009). Table 6.1 shows the concentrations of major solutes and osmolarity in plasma of different fishes in various aquatic environments. Following the early evolution of vertebrates, strategies dealing with body fluids also evolved from osmoconforming to osmo- and ionoregulating (Table 6.1). Hagfishes are osmoconformers with limited regulation of some divalent ions (Mg2+ and Ca2+). Lampreys are pioneers in developing osmoand ionoregulatory strategies, and teleosts are strict osmo- and ionoregulators. On the other hand, most marine chondrichthys are osmoconformers (slightly hyperosmotic to SW due to high plasma levels of urea and the counteracting solute, trimethylamine oxide) and ionoregulators, and the stenohaline FW stingrays (Potamotrygon sp.) are osmo- and ionoregulators with much reduced plasma levels of urea (Wood et al., 2002). Acid-base regulatory mechanisms achieved by apical Na+/H+ and Cl- /HCO- 3 exchangers in the transporting epithelia evolved early in primitive vertebrates, such as hagfishes. Lampreys were probably pioneers in evolving both ion absorption and secretory mechanisms other than the acid/base-linked Na+/Cl- uptake pathways that evolved in hagfishes.

AB - All vertebrates have to regulate their intracellular ionic compositions for the normal operation of cellular and biochemical reactions. Compared to terrestrial animals, aquatic vertebrates are faced with more challenging osmoregulatory environments with fluctuating ionic compositions and osmolarities, which directly affect the homeostasis of body fluids. Aquatic vertebrates have developed different strategies so that their body fluids can cope with the dramatic ionic and osmotic gradients found in aquatic environments. According to the fossil record, early vertebrates, hagfishes, are believed to have originated in a seawater (SW) environment, and some agnathan fish groups, lampreys, were the first invaders in freshwater (FW) (Halstead, 1985; Bartels and Potter, 2004; Evans and Claiborne, 2009). It was also proposed that lampreys and subsequent teleosts originally evolved in FW, and later some of them returned to SW (Halstead, 1985; Bartels and Potter, 2004; Evans and Claiborne, 2009). On the other hand, most extant chondrichthyan fishes are marine with very few FW species; however, no fossil record is available to clarify the early evolution of these cartilaginous species in FW (Halstead, 1985; Evans and Claiborne, 2009). Table 6.1 shows the concentrations of major solutes and osmolarity in plasma of different fishes in various aquatic environments. Following the early evolution of vertebrates, strategies dealing with body fluids also evolved from osmoconforming to osmo- and ionoregulating (Table 6.1). Hagfishes are osmoconformers with limited regulation of some divalent ions (Mg2+ and Ca2+). Lampreys are pioneers in developing osmoand ionoregulatory strategies, and teleosts are strict osmo- and ionoregulators. On the other hand, most marine chondrichthys are osmoconformers (slightly hyperosmotic to SW due to high plasma levels of urea and the counteracting solute, trimethylamine oxide) and ionoregulators, and the stenohaline FW stingrays (Potamotrygon sp.) are osmo- and ionoregulators with much reduced plasma levels of urea (Wood et al., 2002). Acid-base regulatory mechanisms achieved by apical Na+/H+ and Cl- /HCO- 3 exchangers in the transporting epithelia evolved early in primitive vertebrates, such as hagfishes. Lampreys were probably pioneers in evolving both ion absorption and secretory mechanisms other than the acid/base-linked Na+/Cl- uptake pathways that evolved in hagfishes.

UR - http://www.scopus.com/inward/record.url?scp=84982147677&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84982147677&partnerID=8YFLogxK

M3 - Chapter

AN - SCOPUS:84982147677

SN - 9781439880302

SP - 205

EP - 234

BT - The Physiology of Fishes, Fourth Edition

PB - CRC Press/Balkema

ER -