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Patterns of Acid–Base Regulation During Exposure to Hypercarbia in Fishes
Acid–base regulation is one of the most tightly regulated physiological processes among vertebrates, and the specific mechanisms and patterns of acid–base regulation in fish have been investigatedExpand
Haematology of juvenile Acipenser oxyrinchus and Acipenser brevirostrum at rest and following forced activity
Overall, both species had reduced responses to forced activity compared with teleosts, and oxygen transport characteristics, blood glucose, plasma protein and plasma osmolality were not altered by forced activity in either sturgeon species. Expand
Low-O2 acclimation shifts the hypoxia avoidance behaviour of snapper (Pagrus auratus) with only subtle changes in aerobic and anaerobic function
It is suggested that a prioritization of O2 delivery and O2 utilisation over O2 uptake during long-term hypoxia may convey a significant survival benefit to snapper in terms of behavioural low-O2 tolerance. Expand
Could thermal sensitivity of mitochondria determine species distribution in a changing climate?
The present study confirmed that cardiac mitochondrial dysfunction contributes to heat stress-induced HF in two additional wrasses that occupy cold temperate (Notolabrus fucicola) and tropical habitats, and supported the view that species distribution may be related to the thermal limits of mitochondrial stability and function. Expand
Social interactions affect physiological consequences of sublethal copper exposure in rainbow trout, Oncorhynchus mykiss.
The interactions of sublethal waterborne copper exposure and social dominance behavior were examined in juvenile rainbow trout. Dominance hierarchies were determined between pairs of fish byExpand
The effects of variable water salinity and ionic composition on the plasma status of the Pacific Hagfish (Eptatretus stoutii)
It is speculated that hagfish may control plasma [Mg2+] and [Ca2+) at levels below that of their environment via secretion of HCO3−, similar to the mechanisms described in the intestine of teleosts. Expand
The Effect of Capture, Handling, and Tagging on Hematological Variables in Wild Adult Lake Sturgeon
Lake sturgeon that were caught during spring tagging activities showed plasma cortisol, glucose, lactate, osmolality, and chloride levels similar to those exhibited by maximally stressed lake sturgeons in published laboratory studies. Expand
Complete intracellular pH protection during extracellular pH depression is associated with hypercarbia tolerance in white sturgeon, Acipenser transmontanus.
Findings indicate that pHe recovery at this level of hypercarbia is accomplished in a manner similar to most freshwater teleost species studied to date, although branchial mechanisms involved may differ. Expand
Size dependent early salinity tolerance in two sizes of juvenile white sturgeon, Acipenser transmontanus
Despite being unprepared for either direct or stepwise transfer to salinities of 24 ppt or greater, size confers some ionoregulatory advantage, as mortality occurred more slowly and the degree of ionoreGulatory perturbation was less in 30 g than 10 g fish over the course of the exposures. Expand
Range of variability of channel complexity in urban, restored and forested reference streams
SUMMARY 1. Channel complexity is an important ecological property of stream systems and is often targeted for restoration in channelised urban streams. However, channel complexity is rarely definedExpand