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J Exp Biol (2018) 221 (17): jeb183830.
Published: 13 September 2018
... represent the maximum and minimum values. Fig. 3. Tachogram of successive HH intervals for a representative animal (Dogfish 9) in hypoxia, normoxia and hyperoxia pre- (open circles) and post-atropine (closed circles). Fig. 3. Tachogram of successive HH intervals for a representative animal...
J Exp Biol (2010) 213 (11): 1921–1929.
Published: 1 June 2010
...N. A. Curtin; F. Lou; R. C. Woledge SUMMARY The mechanical performance of red and white muscle fibres from dogfish was compared during a long series of contractions with sinusoidal movement or under isometric conditions at 12°C (normal in vivo temperature). Power output was measured during...
J Exp Biol (2007) 210 (8): 1335–1349.
Published: 15 April 2007
...Chris M. Wood; Makiko Kajimura; Carol Bucking; Patrick J. Walsh SUMMARY In order to study the physiological consequences of voluntary feeding in the gastrointestinal tract of a ureotelic marine elasmobranch, dogfish (fasted for 96 h) were sampled at various times up to 360 h after consuming a 5–6...
J Exp Biol (2006) 209 (4): 599–609.
Published: 15 February 2006
... dogfish. To further investigate this putative base-secretive process we performed similar experiments with the addition of colchicine, an inhibitor of cytoskeleton-dependent cellular trafficking processes. Blood pH and plasma total CO 2 were significantly higher in the colchicines-treated,HCO 3 - -infused...
J Exp Biol (2005) 208 (2): 345–354.
Published: 15 January 2005
...Martin Tresguerres; Fumi Katoh; Heather Fenton; Edyta Jasinska; Greg G. Goss SUMMARY To study the mechanisms of branchial acid-base regulation, Pacific spiny dogfish were infused intravenously for 24 h with either HCl (495± 79μmol kg -1 h -1 ) or NaHCO 3 (981±235μmol kg -1 h -1 ). Infusion of HCl...
J Exp Biol (2004) 207 (13): 2339–2349.
Published: 1 June 2004
...Paolo Domenici; Emily M. Standen; Robert P. Levine SUMMARY The locomotor performance of dogfish during escape responses was observed by means of high-speed video. Dogfish show C-type escape responses that are comparable with those shown previously in teleosts. Dogfish show high variability...
J Exp Biol (2004) 207 (2): 347–356.
Published: 15 January 2004
... urea transporter (UT) in the kidney of the dogfish Triakis scyllia . We isolated a cDNA encoding a UT that is homologous to the facilitative UT cloned from another dogfish species, Squalus acanthias . The Triakis UT mRNA is abundantly expressed in the kidney, while low levels of expression were...
J Exp Biol (2002) 205 (13): 1889–1897.
Published: 1 July 2002
... of the calcium-sensing receptor, relaxing the rectal gland artery and permitting salt secretion by the rectal gland tubules. * Author for correspondence (e-mail: firstname.lastname@example.org ) © The Company of Biologists Limited 2002 2002 dogfish Squalus acanthias norepinephrine procaine cyclic...
J Exp Biol (2002) 205 (11): 1585–1595.
Published: 1 June 2002
...F. Lou; N. A. Curtin; R. C. Woledge SUMMARY Maximum isometric tetanic force produced by bundles of red muscle fibres from dogfish, Scyliorhinus canicula (L.), was 142.4±10.3 kN m -2 ( N =35 fibre bundles); this was significantly less than that produced by white fibres 289.2±8.4 kN m -2 ( N =25...
J Exp Biol (2002) 205 (8): 1115–1122.
Published: 15 April 2002
... ). Natriuretic hormones in elasmobranch fish; possible interactions with other endocrine systems. Physiol. Zool. 68 , 182 . Armour, K. J., O'Toole, L. B. and Hazon, N. ( 1993 ). The effect of diet protein restriction on the secretory dynamics of la-hydroxycorticosterone and urea in the dogfish...
J Exp Biol (2001) 204 (22): 3963–3971.
Published: 15 November 2001
... relative contributions of CO 2 versus H + in promoting the cardiorespiratory responses of dogfish ( Squalus acanthias ) and Atlantic salmon ( Salmo salar ) to hypercarbia and to evaluate the relative contributions of externally versus internally oriented receptors in dogfish. In dogfish, the preferential...
J Exp Biol (1992) 168 (1): 161–175.
Published: 1 July 1992
...SUSANNE HOLMGREN; MICHAEL AXELSSON; ANTHONY P. FARRELL The effects of adrenaline, noradrenaline, substance P and vasoactive intestinal polypeptide (VIP) on dorsal aortic blood pressure, coeliac artery blood flow and heart rate were studied in unrestrained dogfish, Squalus acanthias . Changes...
J Exp Biol (1990) 148 (1): 403–414.
Published: 1 January 1990
...D. H. PAUL; B. L. ROBERTS ingle units were recorded from the spinal cord of decerebrate dogfish ( Scyliorhinus canicula ) during pectoral fin reflexes (PFR) evoked by electrical pulse trains to the fin. The units were classified as primary afferent neurones, motoneurones or interneurones...
J Exp Biol (1989) 141 (1): 21–32.
Published: 1 January 1989
...J. D. METCALFE; P. J. BUTLER We assessed the effectiveness of alpha-methyl- p -tyrosine in inhibiting catecholamine synthesis in the dogfish and examined the effects of catecholamine depletion on the cardiovascular system in normoxia and in response to hypoxia. Although alpha-methyl- p -tyrosine...
J Exp Biol (1986) 121 (1): 27–42.
Published: 1 March 1986
... stellaris (Piiper & Schumann, 1967; Piiper & Baumgarten- Present address: Fachbereich Biologie, Universitat Oldenburg, D-2900 Oldenburg, FRG. Key words: gills, morphometry, dogfish. 28 G. M. HUGHES, S. F. PERRY AND J. PIIPER Schumann, 1968a,6; Baumgarten-Schumann & Piiper, 1968; Piiper, Baumgarten & Meyer...
J Exp Biol (1984) 113 (1): 101–107.
Published: 1 November 1984
...J. C. MONTGOMERY; M. G. PAULIN The dogfish oculomotor system can be modelled as a first order linear system (Montgomery, 1983) and hence can be specified by its characteristic frequency and gain. This paper describes the effect of temperature on these two parameters. The characteristic frequency...