geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Pericardial and vascular pressures and blood flow in the albacore tuna, Thunnus alalunga


, : Pericardial and vascular pressures and blood flow in the albacore tuna, Thunnus alalunga. Experimental Biology 46(4): 187-192

Pericardial, ventricular, and dorsal aortic pressures, and blood flow were measured in tabled, anesthetized albacore tuna, Thunnus alalunga (7.8-10.7 kg) captured at sea off Monterey, California (USA) during August 1985. Mean pericardial pressure was -10.0/-2.6 cm H2O (Systolic/Diastolic, [S/D]) and mean pericardial pulse pressure was 7.5. Heart rate averaged 87 beats per minute. Mean ventricular pressure was 97.0/12.9 cm H2O [S/D] and mean dorsal aortic pressure was 64. High ventricular and dorsal aortic pressures of albacore reflect the perfusion requirement of its metabolically active tissues and compensate for the energy losses resulting from blood flow through the gills to arterial heat exchanger to capillaries and again back to the venous heat exchanger. As in elasmobranchs, the remarkably high pericardial pulse pressure, large pericardial volume, and negative pericardial pressure in the albacore suggest that its pericardium is more rigid than that of most teleosts and thus facilitates cardiac filling. Published cardiac output values for most non-tunas, when corrected for body size differences, are less than the mean weight specific cardiac output of albacore (29.4 ml/kg per min, range 12.9-51.9).

US$29.90

PMID: 3582589


Other references

Paiva, A.C.; Paiva, T.B.; Miyamoto, M.E.; Nakaie, C.R., 1977: The role of calcium in the response of rabbit aorta to angiotensin. The role of Ca++ in the stimulus-contraction coupling of the response of the isolated rabbit aorta to angiotensin II was investigated. Angiotensin was found to have lower intrinsic activity than epinephrine and to be more sensitive to acute exposu...

Haramis, L.D., 1985: Larval nutrition, adult body size, and the biology. The nutritional environment of larvae can have a direct effect on the fitness of adult mosquitoes. Small adults of Aedes triseriatus have reduced survival and fecundity in the laboratory, and a reduced probability of completing the first gonotroph...

Ellwanger D., 1988: Wurm glacial erosion channels and gravel deposits near Leutkirch/ Memmingen. Jahreshefte des Geologischen Landesamtes in Baden Wuerttemberg: ages 207-229. 1988.

Hurmic, O.; Grall, N.; A.N.kib, M.; Poyart, C.; Grondin, S.; Ploy, M-C.; Varon, E.; Raymond, J.; Armand-Lefevre, L.; Aubry, A.; Berardi-Grassias, L.; Bingen, E.; Bingen, M.; Bille, E.; Blanchard, Gève.; Bouvet, A.; Casin, I.; Courpon, A.; Decousser, J-Winoc.; Delisle-Mizon, Fçoise.; Doucet-Populaire, F.; Drieux, L.; Ferroni, Aès.; Leflon-Guibout, Véronique.; Leneveu, M.; Leturdu, Fçoise.; Moissenet, D.; Mbadi, A.; Raskine, L.; Richardin, F.; Sivadon-Tardy, Vérie.; Tankovic, J., 2015: Evidence of a clonal expansion of Streptococcus pneumoniae serotype 19A in adults as in children assessed by the DiversiLab® system. Streptococcus pneumoniae serotype 19A was the main serotype responsible for invasive pneumococcal disease (IPD) in the Paris area in 2007 and 2009 in both adults and children. To verify if a particular clone is emerging, we determined the populati...

Perrone, J.A.; Thiele, A., 2000: Testing macaque MT neurons for evidence of oriented spectral receptive fields. IOVS 41(4): S720, March 15

Uri, N.D., 1998: The use of conservation practices in U.S. agriculture. Soil degradation from erosion and the attendant deterioration in water quality associated with agricultural production are significant problems in the USA. The use of appropriate conservation practices can mitigate these problems. The government h...

Natale, N.R.; Triggle, D.J.; Palmer, R.B.; Lefler, B.J.; Edwards, W.D., 1990: 4-Isoxazolyl-1,4-dihydropyridines: biological, theoretical, and structural studies. Biological activity was determined for a series of seven isoxazolyldihydropyridines (IDHPs). The highest biological activity was observed for 5-alkyl-3-phenyl-IDHP (1), for which the O-endo conformation at the ring juncture between the heterocycli...

Barbe, M., 1955: Work carried out on millets and sorghums at the North Cameroons (Guetale) agricultural station (French Cameroons). The results of variety trials at the above station from 1949 to 1953 are given. Of the millets tested Yadiri gave the highest yields, despite its-susceptibility to lodging and Dysdercus sp. The sorghum varieties Boulbassiri and Djigari gave the be...

Veeraraghavan, N., 1951: Action of some sulfhydryl compounds on cobra venom. Guinea pigs weighing from 450-550 g. were used as test animals. The MLD of the venom was 0.4 mg. 5 mg. of BAL in 0.1 cc. of peanut oil with 10% benzyl benzoate when mixed with 0.4 mg. of venom in vitro, incubated at 37[degree]C and then given intr...

D.Ridder, J.J., 1982: Mianserin: result of a decade of antidepressant research. Mianserin is a new tetracyclic compound being the active principle of the antidepressant drug Tolvon. Originally synthesized as an antiallergic, the discovery of the antidepressant activity of mianserin was serendipitous. This review describes the...