Results 41 to 50 of about 1,126 (185)

Historical Impacts of Invasive Species May Not Always Be What They Seem: A Genetic Perspective From an Endangered Native Species

open access: yesDiversity and Distributions, Volume 31, Issue 11, November 2025.
ABSTRACT Aim Invasive species can affect native species detrimentally, causing localised population declines, range contractions and extinctions. Given the costs and difficulties of controlling invasive species, sound knowledge of the potential benefits to native species is essential.
Charlotte Jense   +3 more
wiley   +1 more source

CONTENIDO DE ADN NUCLEAR EN GALAXIAS PLATEI (STEÍNDACUNER, 1898) (TELEOSTEI: OSMERIFORMES: GALAXIIDAE) NUCLEAR DNA CONTENT IN GALAXIAS PLATEI (STEINDACHNER, 1898) (TELEOSTEI: OSMERIFORMES: GALAXIIDAE)

open access: yesGayana, 2008
Galaxias platei, es un pez endémico de Chile y cubre una extensa área geográfica desde la zona centro-sur hasta gran parte de la Patagonia (38°S-54°S), incluyendo también parte de Argentina.
Pedro Jara-Seguel   +2 more
doaj  

Food webs in forest and pasture streams in the Waikato region, New Zealand: A study based on analyses of stable isotopes of carbon and nitrogen, and fish gut contents. [PDF]

open access: yes, 1997
Stable isotopes of carbon (C) and nitrogen (N) were studied in 11 stream communities in the Waikato region of New Zealand. From comparisons of mean d13C and d15N values, food webs in the shaded, forest streams were clearly based on allochthonous material
Biggs B., Lester P. J., Main M. L.
core   +2 more sources

Observations on fishes of the family Galaxiidae: Part 1

open access: yesPapers and proceedings of the Royal Society of Tasmania, 1935
In addition to their general importance as members of a remarkable family, the Tasmanian Galaxiidae are of special interest for several reasons. First, there are, as shown below, good grounds for believing that the island provides the type-locality of the genotype of the foundation-genus; secondly, the early observations of Johnston in Tasmania rank in
openaire   +1 more source

Diversity and Distribution of Amphibians and Freshwater Fishes on Australian Islands

open access: yesDiversity and Distributions, Volume 31, Issue 7, July 2025.
ABSTRACT Aim Freshwater ecosystems cover less than 3% of the Earth's surface, yet support nearly 10% of all known animal species, majorly represented by freshwater fishes and amphibians, both of which are highly threatened groups. Geographically isolated freshwater species, such as those inhabiting islands, are at high risk. Australia, with nearly 9300
Samuel C. L. Ho   +5 more
wiley   +1 more source

Fish passage design for sustainable hydropower in the temperate Southern Hemisphere:An evidence review [PDF]

open access: yes, 2018
The development of hydropower and other infrastructure that disrupts river connectivity poses a serious threat to highly endemic and genetically distinct freshwater fish species in temperate parts of the Southern Hemisphere.
A Bark   +118 more
core   +1 more source

Galaxiidae

open access: yes, 1997
Published as part of Williams, R. R. G., 1997, Bones and muscles of the suspensorium in the galaxioids and Lepidogalaxias salamandroides (Teleostei: Osmeriformes) and their phylogenetic significance, pp. 139-166 in Records of the Australian Museum 49 (2) on pages 154-155, DOI: 10.3853/j.0067-1975.49.1997.1263, http://zenodo.org/record ...
openaire   +1 more source

Observations on fishes of the family Galaxiidae: Part 2.

open access: yesPapers and proceedings of the Royal Society of Tasmania, 1937
In Part 1 of these Observations (Scott, 1936), devoted to a taxo- nomic survey of the family, with descriptions of new species, the hope was expressed that in succeeding parts it would be found possible to consider the Tasmanian Galaxiidae described prior to 1936.
openaire   +1 more source

Flow Matters: Unravelling the Interactive Influences of Flow Variation and Non‐Native Trout on Vulnerable Galaxiids

open access: yesRiver Research and Applications, Volume 41, Issue 5, Page 1131-1142, June 2025.
ABSTRACT Understanding the interactive effects of non‐native species and alterations to flow regimes is important to combat threats to freshwater communities. Low‐flow conditions may either exacerbate or offset influences of non‐natives but the mechanisms determining the direction are poorly understood.
Olivia R. Hore   +3 more
wiley   +1 more source

Distribution of freshwater fish in the south-western corner of Australia [PDF]

open access: yes, 1996
This study investigates the distribution of freshwater fishes in the Busselton to Walpole Region. A total of 311 sites in 19 major catchments along the south-west coast from Capel to Walpole, were sampled using a variety of methods.
Gill, H.S., Morgan, D.L., Potter, I.C.
core   +1 more source

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