CADIC 02618
CENTRO AUSTRAL DE INVESTIGACIONES CIENTIFICAS
Unidad Ejecutora - UE
artículos
Título:
Fish muscle: the exceptional case of notothenioids
Autor/es:
DANIEL A. FERNÁNDEZ, JORGE CALVO
Revista:
FISH PHYSIOLOGY AND BIOCHEMISTRY
Editorial:
Springer
Referencias:
Año: 2008 p. 43 - 52
ISSN:
0920-1742
Resumen:
Abstract Fish skeletal muscle is an excellent model
for studying muscle structure and function, since it has
a very well-structured arrangement with different fiber
types segregated in the axial and pectoral fin muscles.
The morphological and physiological characteristics
of the different muscle fiber types have been studied in
several teleost species. In fish muscle, fiber number
and size varies with the species considered, limiting
fish maximum final length due to constraints in
metabolites and oxygen diffusion. In this work, we
analyze some special characteristics of the skeletal
muscle of the suborder Notothenioidei. They experienced
an impressive radiation inside Antarctic waters,
a stable and cold environment that could account for
some of their special characteristics. The number of
muscle fibers is very low, 12,700164,000, in comparison
to 550,0001,200,000 in Salmo salar of
similar sizes. The size of the fibers is very large,
reaching 600 lm in diameter, while for example
similar sizes. The size of the fibers is very large,
reaching 600 lm in diameter, while for example
similar sizes. The size of the fibers is very large,
reaching 600 lm in diameter, while for example
for studying muscle structure and function, since it has
a very well-structured arrangement with different fiber
types segregated in the axial and pectoral fin muscles.
The morphological and physiological characteristics
of the different muscle fiber types have been studied in
several teleost species. In fish muscle, fiber number
and size varies with the species considered, limiting
fish maximum final length due to constraints in
metabolites and oxygen diffusion. In this work, we
analyze some special characteristics of the skeletal
muscle of the suborder Notothenioidei. They experienced
an impressive radiation inside Antarctic waters,
a stable and cold environment that could account for
some of their special characteristics. The number of
muscle fibers is very low, 12,700164,000, in comparison
to 550,0001,200,000 in Salmo salar of
similar sizes. The size of the fibers is very large,
reaching 600 lm in diameter, while for example
similar sizes. The size of the fibers is very large,
reaching 600 lm in diameter, while for example
similar sizes. The size of the fibers is very large,
reaching 600 lm in diameter, while for example
for studying muscle structure and function, since it has
a very well-structured arrangement with different fiber
types segregated in the axial and pectoral fin muscles.
The morphological and physiological characteristics
of the different muscle fiber types have been studied in
several teleost species. In fish muscle, fiber number
and size varies with the species considered, limiting
fish maximum final length due to constraints in
metabolites and oxygen diffusion. In this work, we
analyze some special characteristics of the skeletal
muscle of the suborder Notothenioidei. They experienced
an impressive radiation inside Antarctic waters,
a stable and cold environment that could account for
some of their special characteristics. The number of
muscle fibers is very low, 12,700164,000, in comparison
to 550,0001,200,000 in Salmo salar of
similar sizes. The size of the fibers is very large,
reaching 600 lm in diameter, while for example
similar sizes. The size of the fibers is very large,
reaching 600 lm in diameter, while for example
similar sizes. The size of the fibers is very large,
reaching 600 lm in diameter, while for example
Fish skeletal muscle is an excellent model
for studying muscle structure and function, since it has
a very well-structured arrangement with different fiber
types segregated in the axial and pectoral fin muscles.
The morphological and physiological characteristics
of the different muscle fiber types have been studied in
several teleost species. In fish muscle, fiber number
and size varies with the species considered, limiting
fish maximum final length due to constraints in
metabolites and oxygen diffusion. In this work, we
analyze some special characteristics of the skeletal
muscle of the suborder Notothenioidei. They experienced
an impressive radiation inside Antarctic waters,
a stable and cold environment that could account for
some of their special characteristics. The number of
muscle fibers is very low, 12,700164,000, in comparison
to 550,0001,200,000 in Salmo salar of
similar sizes. The size of the fibers is very large,
reaching 600 lm in diameter, while for example
similar sizes. The size of the fibers is very large,
reaching 600 lm in diameter, while for example
similar sizes. The size of the fibers is very large,
reaching 600 lm in diameter, while for example
Salmo salar of
similar sizes. The size of the fibers is very large,
reaching 600 lm in diameter, while for examplelm in diameter, while for example
Salmo salar of similar sizes have fibers of 220 lm
maximum diameter. Evolutionary adjustment in cell
cycle length for working at low temperature has been
shown in Harpagifer antarcticus (111 h at 0C), when
compared to the closely related sub-Antarctic species
compared to the closely related sub-Antarctic species
compared to the closely related sub-Antarctic species
maximum diameter. Evolutionary adjustment in cell
cycle length for working at low temperature has been
shown in Harpagifer antarcticus (111 h at 0C), when
compared to the closely related sub-Antarctic species
compared to the closely related sub-Antarctic species
compared to the closely related sub-Antarctic species
maximum diameter. Evolutionary adjustment in cell
cycle length for working at low temperature has been
shown in Harpagifer antarcticus (111 h at 0C), when
compared to the closely related sub-Antarctic species
compared to the closely related sub-Antarctic species
compared to the closely related sub-Antarctic species
of similar sizes have fibers of 220 lm
maximum diameter. Evolutionary adjustment in cell
cycle length for working at low temperature has been
shown in Harpagifer antarcticus (111 h at 0C), when
compared to the closely related sub-Antarctic species
compared to the closely related sub-Antarctic species
compared to the closely related sub-Antarctic species
Harpagifer antarcticus (111 h at 0C), when
compared to the closely related sub-Antarctic species
Harpagifer bispinis (150 h at 5C). Maximum muscle
fiber number decreases towards the more derived
notothenioids, a trend that is more related to phylogeny
than to geographical distribution (and hence water
temperature), with values as low as 3,600 in Harpagifer
bispinis. Mitochondria volume density in slow
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
bispinis. Mitochondria volume density in slow
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
bispinis. Mitochondria volume density in slow
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
fiber number decreases towards the more derived
notothenioids, a trend that is more related to phylogeny
than to geographical distribution (and hence water
temperature), with values as low as 3,600 in Harpagifer
bispinis. Mitochondria volume density in slow
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
bispinis. Mitochondria volume density in slow
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
bispinis. Mitochondria volume density in slow
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
fiber number decreases towards the more derived
notothenioids, a trend that is more related to phylogeny
than to geographical distribution (and hence water
temperature), with values as low as 3,600 in Harpagifer
bispinis. Mitochondria volume density in slow
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
bispinis. Mitochondria volume density in slow
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
bispinis. Mitochondria volume density in slow
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
(150 h at 5C). Maximum muscle
fiber number decreases towards the more derived
notothenioids, a trend that is more related to phylogeny
than to geographical distribution (and hence water
temperature), with values as low as 3,600 in Harpagifer
bispinis. Mitochondria volume density in slow
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
bispinis. Mitochondria volume density in slow
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
bispinis. Mitochondria volume density in slow
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
Harpagifer
bispinis. Mitochondria volume density in slow
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
. Mitochondria volume density in slow
muscles of notothenioids is very high (reaching 0.56)
and since maximal rates of substrate oxidation by
mitochondria is not enhanced, at least in demersal
notothenioids, volume density is the only means of
overcoming thermal constraints on oxidative capacity.
In brief, some characteristics of the muscles of
notothenioids have an apparent phylogenetic component
while others seem to be adaptations to low
temperature.
Keywords Fish muscle Muscle growth Fish muscle Muscle growth
Fiber size Notothenioids Temperature Notothenioids Temperature
