Results 111 to 120 of about 245 (154)
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Aspects of the biology of Galaxias maculatus
Journal of Fish Biology, 2012The biology of three landlocked and a riverine population of Galaxias maculatus were examined in western Victoria, Australia. All systems supported reproducing populations of these fish, including Lake Corangamite which had salinities that on occasion reached 82.
Laurenson, L. +8 more
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Mechanisms of zinc toxicity in the galaxiid fish, Galaxias maculatus
Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology, 2016Zinc (Zn) is an essential metal, which is ubiquitous in aquatic environments occurring both naturally, and through anthropogenic inputs. This study investigated impacts of sub-lethal Zn exposure in the galaxiid fish Galaxias maculatus. Known as inanga, this amphidromous fish is widespread throughout the Southern hemisphere, but to date almost nothing ...
Nicole K, McRae +2 more
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A novel oxyconforming response in the freshwater fish Galaxias maculatus
Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 2012How fish oxygen consumption is modulated by external PO(2) has long been a matter of interest, yet is an experimentally complicated question to answer. In this study closed and semi-closed respirometry were used to evaluate the oxygen consumption rate of the scaleless galaxiid fish, inanga (Galaxias maculatus) as a function of decreasing external PO(2).
Mauricio A, Urbina +2 more
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Galaxias maculatus : An explanation of its biogeography
Marine and Freshwater Research, 1996Galaxias maculatus is a small diadromous fish found in Australia, New Zealand, South America and on some oceanic islands. Two hypotheses have been advanced to explain this widespread, disjunct distribution. McDowall promoted dispersal through the sea of salt-tolerant juveniles but Rosen and others claimed that the distribution reflected the break-up of
TM Berra +3 more
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Salinity-dependent mechanisms of copper toxicity in the galaxiid fish, Galaxias maculatus
Aquatic Toxicology, 2016The euryhaline galaxiid fish, inanga (Galaxias maculatus) is widely spread throughout the Southern hemisphere occupying near-coastal streams that may be elevated in trace elements such as copper (Cu). Despite this, nothing is known regarding their sensitivity to Cu contamination.
Chris N, Glover +3 more
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Phenotypic and genetic differentiation between diadromous and landlocked puyen
AbstractThis study reports the phenotypic and genetic differences between individuals of puyen Galaxias maculatus from two sites in the same river basin in Tierra del Fuego National Park, southern South America. Individuals from the two sampling sites presented morphometric and genetic differences.
Javier Hernán Rojo +3 more
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Life-history traits in the southernmost landlocked population of the fish Galaxias maculatus
Polar Biology, 2022Fil: Boy, Claudia Clementina. Consejo Nacional de Investigaciones Científicas y Técnicas.
Javier Hernán Rojo +1 more
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Effect of body size and temperature on respiration of Galaxias maculatus (Pisces: Galaxiidae)
New Zealand Journal of Marine and Freshwater Research, 2016ABSTRACT Body mass and temperature are primary determinants of metabolic rate in ectothermic animals. Oxygen consumption of post‐larval Galaxias maculatus was measured in respirometry trials under different temperatures (5–21 °C) and varying body masses (0.1–>1.5 g ...
Milano, Daniela +2 more
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Laboratory culture of Galaxias maculatus and potential applications
New Zealand Journal of Marine and Freshwater Research, 1989Galaxias maculatus has considerable potential as a laboratory animal. Laboratory techniques used to maintain, artificially spawn, hatch, and rear this New Zealand native freshwater fish are described. Potential research applications for the fish, the eggs, and the larvae are outlined.
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Morphology and Ultrastructure of Puye (Galaxias maculatus) Spermatozoa
Acta ZoologicaABSTRACTThis study characterises basic seminal and sperm parameters of puye (Galaxias maculatus maculatus), including sperm concentration, seminal plasma osmolality and cell viability. In addition, it provides a detailed description of sperm ultrastructure. Wild males (n = 21) were captured in southern Chile.
Leydy Sandoval‐Vargas +7 more
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