Ion and Acid-Base Regulation in Fish

SYMPOSIUM PROCEEDINGS

Steve McCormick

Don MacKinlay

 

International Congress on the Biology of Fish

Tropical Hotel Resort, Manaus Brazil, August 1-5, 2004

 

Copyright © 2004

Physiology Section,

American Fisheries Society

All rights reserved

International Standard Book Number(ISBN) 1-894337-48-4

 

Notice

 

This publication is made up of a combination of extended abstracts and full papers, submitted by the authors without peer review. The formatting has been edited but the content is the responsibility of the authors. The papers in this volume should not be cited as primary literature. The Physiology Section of the American Fisheries Society offers this compilation of papers in the interests of information exchange only, and makes no claim as to the validity of the conclusions or recommendations presented in the papers.

 

For copies of these Symposium Proceedings, or the other 20 Proceedings in the Congress series, contact:

                Don MacKinlay,   SEP DFO, 401 Burrard St Vancouver BC V6C 3S4 Canada Phone: 604-666-3520       Fax 604-666-0417 E-mail: mackinlayd@pac.dfo-mpo.gc.ca

Website: www.fishbiologycongress.org

 

PREFACE

All teleost fish regulate ions in order to maintain plasma and intracellular ions at relatively constant levels.  Anadromous and euryhaline species must have the capacity to reverse these mechanisms of ion transport.  Similarly,all fish must regulate their acid-base balance, both in response to the external environment and internal generation of metabolic byproducts.  Ion and acid-base regulation is critical to the normal function of most metabolic andphysiological processes.  The mechanisms for ion and acid-base balance are interrelated, and though we have a basic understanding of some of the mechanisms involved, it is clear that there is significant diversity among fish in the transporters involved, their localization and control.  The papers in this symposium represent recent and important advances in our understanding of ion and acid-base physiology of fishes.  The following areas of investigation are highlights of these contributions:

·        Mechanisms of ion and acid-base regulation

·        Characteristics and regulation of ion transporters

·        Molecular approaches to ion and acid-base regulation

·         Endocrine control of ion and acid-base regulation

·        Toxicology and endocrine disruption of ion and acid-base regulation

We thank all of the contributors, both oral and posters, for contributing to the success of this symposium.

Symposium Organizers:

Steve McCormick, Conte Anadromous Fish Research Center, Massechusetts

Don MacKinlay, Fisheries & Oceans Canada

 

TABLE OF CONTENTS

Download the Complete Proceedings

 

Gene regulation and ion flux in the euryhaline killifish Fundulus heteroclitus after freshwater transfer

        Graham R. Scott.........................................................................................................

Rapid adaptation of the killifish (Fundulus heteroclitus) to salinity change

        Chris M. Wood............................................................................................................

Iono regulation in the glass eel (Anguilla anguilla). Jonathan Wilson

Cloning and characterization of a SLC26a4 (Pendrin) homologue from rainbow trout (Oncorhynchus mykiss).

        Greg G. Goss, Fumi Katoh And Elizabeth A. Orr.................................................

SLC26A anion exchanger expressed in rainbow trout kidney

        Fumi Katoh.................................................................................................................

Mechanisms of salinity tolerance in California Mozambique tilapia (Oreochromis mossambicus x O. urolepis hornorum) exposed to salinites greater than seawater

        Brian Sardella, Matey, V., Cooper, J., Gonzalez, R.J., Brauner, C.J................

Natriuretic peptide signalling in the gills of freshwater and seawater fishes

        Tes Toop.......................................................................................................................

Changes in expression of hypo-osmotic hormone genes in pre-spawning salmon during upstream migration.

        Akihisa Urano............................................................................................................

Activation of the growth hormone/insulin-like growth factor I axis during smolting and seawater acclimation of Atlantic salmon.

        Steve McCormick.......................................................................................................

The consequence of feeding in the dogfish shark for acid-base regulation and nitrogen metabolism. 

        Makiko Kajimura.......................................................................................................

Mechanisms of bicarbonate transport by the marine teleost intestine

        Martin Grosell............................................................................................................

Multiple roles of intestinal bicarbonate secretion in marine teleosts

        Rod Wilson..................................................................................................................

Acid-base regulation in Amazonian fishes

        Colin Brauner.............................................................................................................

Physiological impacts of short-term, sub-lethal acid and aluminum exposure of Atlantic salmon, Salmo salar, smolts

        Michelle Y. Monette and Stephen D. McCormick................................................

Branchial acid-base regulation in the dogfish, Squalus acanthias

        Martin Tresguerres....................................................................................................

Calcium uptake in two Amazonian fish native to ion-poor waters of the Rio Negro

        Matsuo, AYO and Val, AL.........................................................................................

Chloride levels in the gastrointestinal content of three teleost species with different feeding habits

        Alexssandro G. Becker..............................................................................................

Cytochemical and biochemical detection of glycoconjugates in mucous cells of eurihaline fish (Poecilia vivipara) gills submitted to salinity changes

        Simone M. T. de Sabóia-Morais..............................................................................

Modulation of ion transport protein expression in the euryhaline pufferfish (Tetradon)

        Joana da Silva............................................................................................................

Ontogenetic ammonia excretion in silver catfish Rhamdia quelen  

        Luciano O. Garcia.....................................................................................................

Role of the branchial NKCC in the transition between hypo- and hyper-regulation in the estuarine pufferfishes Sphoeroides testudineus and S. greeleyi

        Prodocimo, V. and Freire, C.A................................................................................

Water pH and urinary excretion in silver catfish

        Bolner, K.C.S..............................................................................................................