Results 31 to 40 of about 383 (160)

Unusual sites of infection of Ligula intestinalis (Cestoda) plerocercoids in an intermediate host, freshwater bream Abramis brama

, 2023
Journal of Fish Diseases, Volume 46, Issue 7, Page 791-793, July 2023.
Zdeněk Adámek, Miroslava Palíková, Tomáš Scholz   +2 more
wiley   +1 more source

Acanthostomoides apophalliformis (Trematoda: Cryptogonimidae) does not cause detectable mortality in Galaxias maculatus (Teleostomi: Galaxiidae)

Brazilian Archives of Biology and Technology, 2006
The present study was conducted to determine if parasite induced mortality existed in a "puyen" population in Moreno Lake, southern Argentina. Data on both parasite abundance and degree of aggregation of parasite frequency distribution showed the absence
Jorge E. Revenga, Patricio F. Torres, Ines Siegmund   +2 more
doaj   +1 more source

Reproduction inGalaxias fasciatusGray (Salmoniformes : Galaxiidae) [PDF]

New Zealand Journal of Marine and Freshwater Research, 1979
A study of the reproductive cycle was made on Galaxias fasciatus Gray from streams on Banks Peninsula, South Island, New Zealand. There was no spawning migration; adults remained in the usual adult habitat to breed. The course of gonad maturation showed that spawning occurred in the autumn, from the end of April to mid‐June.
openaire   +1 more source

La estructura de las comunidades de helmintos de Galaxias maculatus (Osmeriformes: Galaxiidae) en diferentes sitios de un lago de la Patagonia argentina

Ecología Austral, 2015
La variación espacial de las comunidades de helmintos en un sistema acuático puede atribuirse a diferentes factores bióticos y abióticos. En América del Sur, este tipo de estudios no ha sido realizado en ambientes de agua dulce.
María Fernández, Liliana Semenas, Gustavo Viozzi   +2 more
doaj   +1 more source

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

Diversity 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, Bruce E. Deagle, Rob Freeman, Christopher P. Burridge   +3 more
wiley   +1 more source

Diversity and Distribution of Amphibians and Freshwater Fishes on Australian Islands

Diversity 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, Simon P. Hart, Michael P. Hammer, Peter W. J. Baxter, Peter J. Unmack, Salit Kark   +5 more
wiley   +1 more source

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

River 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, Jonathan D. Tonkin, Nixie C. Boddy, Angus R. McIntosh   +3 more
wiley   +1 more source

Freshwater Macroinvertebrate Community Responses to Drying Reflect Abiotic Stress, Frequency of Prior Drying and Proximity to a Perennial Reach

Freshwater Biology, Volume 70, Issue 4, April 2025.
ABSTRACT Intermittent streams dominate global river networks and are becoming increasingly common due to global change. Understanding the mechanisms by which freshwater biota respond to flow recession, drying, and intermittence is therefore important to our ability to support biodiversity as ecosystems adapt to ongoing stressors.
Elysia B. Harcombe, Angus R. McIntosh, Helen J. Warburton   +2 more
wiley   +1 more source

Optimizing eDNA Replication for Standardized Application in Lotic Systems in Aotearoa, New Zealand

Environmental DNA, Volume 6, Issue 5, September–October 2024.
The objective of this study was to optimize eDNA sample replication for the consistent characterization of freshwater fish and aquatic macroinvertebrate communities in flowing New Zealand waters, and ultimately, to inform the development of robust national monitoring standards. Results indicated that six replicates were needed to consistently detect 89.
Josh Smith, Bruno David, Andy Hicks, Shaun Wilkinson, Nicolas Ling, Daniel Fake, Alastair Suren, Amy Gault   +7 more
wiley   +1 more source

Preliminary investigation of systematics of some Tasmanian Galaxiidae

Papers and proceedings of the Royal Society of Tasmania, 1966
The investigation has revealed no Tasmanian galaxiid identical with any New Zealand form. The fish known hitherto as Galaxias attenuatus in Tasmania is shown to be at least subspecifically different from the form bearing this name in New Zealand. The two forms are referred to the species maculatus Jenyns on the grounds of page precedence, and are ...
openaire   +1 more source