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Titolo:
Metabolic rates in an anadromous clupeid, the American shad (Alosa sapidissima)
Autore:
Leonard, JBK; Norieka, JF; Kynard, B; McCormick, SD;
Indirizzi:
US Geol Survey, Biol Resources Div, Conte Anadromous Fish Res Ctr, TurnersFalls, MA 01376 USA US Geol Survey Turners Falls MA USA 01376 Ctr, TurnersFalls, MA 01376 USA Univ Massachusetts, Dept Biol, Amherst, MA 01003 USA Univ Massachusetts Amherst MA USA 01003 Dept Biol, Amherst, MA 01003 USA
Titolo Testata:
JOURNAL OF COMPARATIVE PHYSIOLOGY B-BIOCHEMICAL SYSTEMIC AND ENVIRONMENTALPHYSIOLOGY
fascicolo: 4-5, volume: 169, anno: 1999,
pagine: 287 - 295
SICI:
0174-1578(199907)169:4-5<287:MRIAAC>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
LARGE WATER TUNNEL; SOCKEYE-SALMON; BODY SIZE; SWIMMING PERFORMANCE; RED MUSCLE; TEMPERATURE; MIGRATIONS; FISHES; TUNA; CONSEQUENCES;
Keywords:
American shad; Alosa sapidissima; metabolism; respirometry; clupeidae;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
49
Recensione:
Indirizzi per estratti:
Indirizzo: Leonard, JBK US Geol Survey, Biol Resources Div, Conte Anadromous Fish ResCtr, TurnersFalls, MA 01376 USA US Geol Survey Turners Falls MA USA 01376alls, MA 01376 USA
Citazione:
J.B.K. Leonard et al., "Metabolic rates in an anadromous clupeid, the American shad (Alosa sapidissima)", J COMP PH B, 169(4-5), 1999, pp. 287-295

Abstract

To assess the energetics of migration in an anadromous fish, adult American shad (Alosa sapidissima) were swum in a large respirometer at a range of speeds (1.0-2.3 body lengths (BL) s(-1), 13-24 degrees C). Metabolic rate (M-O2) was logarithmically related to swimming speed (B1 s(-1); r(2) = 0.41,slope = 0.23 +/- 0.037) and tailbeat frequency (beats x min(-1); r(2) = 0.52, slope = 0.003 +/- 0.0003). Temperature had a significant effect on metabolic rate (r(2) = 0.41) with a Q(10) of 2.2. Standard metabolic rate (SMR), determined directly after immobilization with the neuroblocker gallamine triethiodide, ranged from 2.2-6.2 mmolO(2) kg(-1) h(-1) and scaled with mass (W) such that SMR = 4.0 (+/- 0.03)W0.695(+/-0.15). Comparison of directlydetermined and extrapolated SMR suggests that swimming respirometry provides a good estimate of SMR in this species, given the differences in basal activity monitored by the two methods. Overall, American shad metabolic rates (M-O2 and SMR) were intermediate between salmonids and fast-swimming perciforms, including tunas, and may be a result of evolutionary adaptation to their active pelagic, schooling life history. This study demonstrates variability in metabolic strategy among anadromous fishes that may be important to understanding the relative success of different migratory species under varying environmental conditions.

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Documento generato il 30/03/20 alle ore 09:25:44