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- Title
Influences of body mass, temperature, oxygen tension, and salinity on respiratory oxygen consumption of cyprinodontoid fishes of three families.
- Authors
Nordlie, Frank
- Abstract
This review evaluates the current state of knowledge of influences of body mass, ambient temperature, P, and salinity on routine metabolic rates of members of three families, Fundulidae, Cyprinodontidae, and Poeciliidae, belonging to the order Cyprinodontiformes. The study was motivated by Winberg's (Fisheries Research Board of Canada, Translation Series No. 194. Distributed by the Fisheries Research Board of Canada Biological Station, Nanaimo, BC, ) conclusion that the Cyprinodontiformes (Winberg included only live-bearing poeciliids) generally have lower metabolic rates that do other fishes. Based on available information Winberg's conclusion was borne out that live-bearing freshwater poeciliids show lower than average routine metabolic rates compared to other freshwater fish groups. This is also true of poeciliids from saline waters, and of both freshwater and saline-water members of the related families Fundulidae and Cyprinodontidae. However, considerable variation in metabolic patterns was noted within and among these three families. There were geographic variations between subspecies of some species. Some island groups/species showed lower routine metabolic rates than did allied mainland groups/species. Thermal responses (Q values) in routine metabolic rates of these fishes showed variations with geographic location, P, salinity and size. Values of P were altered among species by temperature, body size/age, and possibly salinity. Influences of ambient salinity on routine metabolic rates of these cyprinodontoid fishes also showed variations with temperature and size/age of individuals. The patterns of metabolic responses in these cyprinodontoid fishes to environmental conditions were generally similar to those of other species. Unfortunately, the available information on these fishes lacks the uniformity that would allow for critical and quantitative comparisons between and among the cyprinodontoids and with other species.
- Subjects
BODY composition of fish; EFFECT of salt on fishes; BODY temperature; KILLIFISHES; OXYGEN consumption; FUNDULIDAE; CYPRINODONTIDAE; FISHES
- Publication
Reviews in Fish Biology & Fisheries, 2014, Vol 24, Issue 1, p269
- ISSN
0960-3166
- Publication type
Article
- DOI
10.1007/s11160-013-9331-9