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Keywords: Fish
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Journal Articles
J Exp Biol (2021) 224 (9): jeb242382.
Published: 30 April 2021
... heart mitochondrial function at high temperatures are due to impaired oxidative phosphorylation and complex I activity and may contribute to set upper thermal limits in this species. Complex I Fish Heart Mitochondria Respiration Temperature Temperature is an important abiotic factor...
Journal Articles
J Exp Biol (2020) 223 (21): jeb227280.
Published: 03 November 2020
... textured environments and regularly interact with textured surfaces. Here we explore texture sensation in a different type of vertebrate limb by investigating touch and potential texture encoding mechanisms in the pectoral fins of fishes, the forelimb homologs. We investigated the pectoral fins of the...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (18): jeb227140.
Published: 28 September 2020
...Jarrod C. Petersen; Jason B. Ramsay ABSTRACT Fish fin rays (lepidotrichia) are typically composed of paired and segmented flexible structures (hemitrichia) that help support and change the shape of the fins to affect water flow. Yet, marine ray-finned fish that are members of the family Priontinae...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (17): jeb221721.
Published: 06 September 2020
...Sara Comesaña; Marta Conde-Sieira; Cristina Velasco; José L. Soengas; Sofia Morais ABSTRACT To assess the putative role of taste and pre-absorptive sensing of amino acids in food intake control in fish, we carried out an oral administration with l -leucine, l -valine, l -proline or l -glutamic acid...
Journal Articles
J Exp Biol (2020) 223 (17): jeb227330.
Published: 03 September 2020
...Cristina Velasco; Marta Conde-Sieira; Sara Comesaña; Mauro Chivite; Adrián Díaz-Rúa; Jesús M. Míguez; José L. Soengas ABSTRACT We hypothesized that the free fatty acid receptors FFA1 and FFA4 might be involved in the anorectic response observed in fish after rising levels of long-chain fatty acids...
Journal Articles
J Exp Biol (2020) 223 (16): jeb223230.
Published: 24 August 2020
...Robin Thandiackal; George V. Lauder ABSTRACT Whereas many fishes swim steadily, zebrafish regularly exhibit unsteady burst-and-coast swimming, which is characterized by repeated sequences of turns followed by gliding periods. Such a behavior offers the opportunity to investigate the hypothesis that...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (15): jeb221069.
Published: 11 August 2020
...Christian Kropf; Karl Fent; Stephan Fischer; Ayako Casanova; Helmut Segner ABSTRACT Fish gills are a structurally and functionally complex organ at the interface between the organism and the aquatic environment. Gill functions include the transfer of organic molecules, both natural ones and...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (14): jeb214841.
Published: 28 July 2020
.... References Ando , S. ( 1986 ). Studies on the food biochemical aspects of changes in chum salmon, Oncorhynchus keta, during spawning migration: mechanisms of muscle deterioration and nuptial coloration . Mem. Fac. Fish. Hokkaido Univ. , 33 , 1 - 95 . Arndt , S. K. A. , Benfey , T. J...
Journal Articles
J Exp Biol (2020) 223 (12): jeb222034.
Published: 25 June 2020
...Matthias Vignon; Jean-Christophe Aymes ABSTRACT The fast-start escape response is the main locomotor behaviour observed in fish to evade predatory attacks and thereby increase their probability of survival. Thus far, this high-speed sensory motor control has been extensively studied in relation to...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (10): jeb211144.
Published: 20 May 2020
...S. Ghods; S. Waddell; E. Weller; C. Renteria; H.-Y. Jiang; J. M. Janak; S. S. Mao; T. J. Linley; D. Arola ABSTRACT Fish scales serve as a dermal armor that provides protection from physical injury. Owing to a number of outstanding properties, fish scales are inspiring new concepts for layered...
Journal Articles
J Exp Biol (2020) 223 (8): jeb213454.
Published: 23 April 2020
... disappeared in the presence of wortmannin, suggesting the PI3K/Akt pathway is a mediator of the effects of insulin reported here. This study adds new information to our knowledge of the mechanisms regulating nutrient sensing in fish. * Author for correspondence ( suraj.unniappan@usask.ca ) Competing...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (4): jeb215335.
Published: 20 February 2020
... at factors beyond the heart, namely vascular capacitance and conductance. Capacitance Vasculature Cardiac output Mean circulatory filling pressure Reptile Fish Resistance Exercise Stroke volume Contractility Inotropy Vasodilatation Arthur C. Guyton (1919–2003) revolutionised...
Journal Articles
J Exp Biol (2020) 223 (2): jeb211466.
Published: 23 January 2020
...Brett R. Aiello; Aaron M. Olsen; Chris E. Mathis; Mark W. Westneat; Melina E. Hale ABSTRACT For many fish species, rhythmic movement of the pectoral fins, or forelimbs, drives locomotion. In terrestrial vertebrates, normal limb-based rhythmic gaits require ongoing modulation with limb...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (1): jeb216036.
Published: 13 January 2020
...Lewis G. Halsey; Gil Iosilevskii ABSTRACT Displays of maximum swimming speeds are rare in the laboratory and the wild, limiting our understanding of the top-end athletic capacities of aquatic vertebrates. However, jumps out of the water – exhibited by a diversity of fish and cetaceans – might...
Journal Articles
J Exp Biol (2019) 222 (24): jeb209916.
Published: 20 December 2019
...Valerio Tettamanti; Fanny de Busserolles; David Lecchini; N. Justin Marshall; Fabio Cortesi ABSTRACT Ontogenetic changes of the visual system are often correlated with shifts in habitat and feeding behaviour of animals. Coral reef fishes begin their lives in the pelagic zone and then migrate to the...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (22): jeb206896.
Published: 21 November 2019
... aspects of ROS metabolism in response to O 2 variability (6 h hypoxia or hyperoxia, with subsequent normoxic recovery) in two species of intertidal sculpin fishes (Cottidae, Actinopterygii) that can experience O 2 fluctuations in their natural environment and differ in whole-animal hypoxia tolerance. To...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (22): jeb203646.
Published: 13 November 2019
...Gordon R. Ultsch; Matthew D. Regan ABSTRACT The critical O 2 tension ( P crit ) is the lowest P O 2 at which an animal can maintain some benchmark rate of O 2 uptake ( Ṁ O 2 ). This P O 2 has long served as a comparator of hypoxia tolerance in fishes and aquatic invertebrates, but its usefulness in...
Journal Articles
J Exp Biol (2019) 222 (20): jeb211888.
Published: 16 October 2019
... combination of the two chemicals, for 18 days. During the experiment, fish were assayed at four time points for the following personality traits: exploration, boldness, aggression and sociability. To quantify brain gene expression on short- and longer-term scales, fish were sampled at two time points. Our...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (19): jeb208249.
Published: 07 October 2019
...Fredrik Jutfelt; Dominique G. Roche; Timothy D. Clark; Tommy Norin; Sandra A. Binning; Ben Speers-Roesch; Mirjam Amcoff; Rachael Morgan; Anna H. Andreassen; Josefin Sundin ABSTRACT Physiological mechanisms determining thermal limits in fishes are debated but remain elusive. It has been hypothesised...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (18): jeb166009.
Published: 18 September 2019
...Paolo Domenici; Melina E. Hale ABSTRACT The study of fish escape responses has provided important insights into the accelerative motions and fast response times of these animals. In addition, the accessibility of the underlying neural circuits has made the escape response a fundamental model in...