Results 41 to 50 of about 478 (166)

Assessment of histological changes caused by the trematode Tylodelphys sp. in the central nervous system of Galaxias maculatus [PDF]

Neotropical Ichthyology
A recent experimental study has reported significant changes in the behaviour of the fish Galaxias maculatus due to the presence of the parasite trematode Tylodelphys sp. in its cranial cavity.
Paulina Rivera, Ruby López-Rodríguez, Daniela Mardones, Nicole Colin, Konrad Górski   +4 more
doaj   +1 more source

Balancing Harvest and Habitat: A Framework for the Sustainable Management of Diadromous Galaxiids

New Zealand Journal of Marine and Freshwater Research, Volume 60, Issue 1, March 2026.
Managing New Zealand's diadromous Galaxias species and the associated whitebait fishery presents a complex challenge due to species‐specific differences in life‐history strategies, habitat requirements, and population dynamics that underpin responses to anthropogenic and environmental pressures.
Ben R. J. Crichton, Michael J. H. Hickford, Angus R. McIntosh, David R. Schiel, Andrew S. Watson   +4 more
wiley   +1 more source

Latitudinal variation of migratory life histories of riverine Galaxias maculatus in Chile (36°- 47°S)

Frontiers in Marine Science, 2015
A relationship between life histories and increasing latitude has been described for Northern Hemisphere riverine fish, whereby life cycles that complete most of the growth in the ocean are favoured at higher latitudes.
Konrad Górski, Konrad Górski
doaj   +1 more source

Implementing Bayesian network models using expert elicitation for instream barrier assessment

Journal of Applied Ecology, Volume 63, Issue 2, February 2026.
We have demonstrated that BN modelling and expert knowledge can be used for assessing the likelihood of fish passage where empirical data are lacking or sparse. The probabilistic framework is consistent with the need to reflect that many structures are partial barriers to fish movement and cannot be represented accurately in a binary pass/fail ...
Paul Franklin, Cindy Baker, Eleanor Gee, Martin Wilkes   +3 more
wiley   +1 more source

Efecto de la salinidad en la supervivencia embrionaria de puye Galaxias maculatus (Jenyns, 1842)

Latin American Journal of Aquatic Research, 2015
Se evaluó e l efecto de la salinidad en la supervivencia embrionaria, período embrionario y período de eclosión de puye, Galaxias maculatus. Se utilizaron ocho tratamientos, con salinidades de 0, 4, 8, 12, 16 y 20 obteniéndose supervivencias embrionarias
Juan Barile, Manuel Escudero, Eriko Carreño, David San Martín   +3 more
doaj   +1 more source

Fishing‐Induced Regulation of Diadromous Fish Subsidies in Stream Communities

Freshwater Biology, Volume 71, Issue 1, January 2026.
ABSTRACT Seasonal migrations of diadromous fish transport marine‐derived nutrients into freshwater ecosystems, enriching communities and restructuring food‐web dynamics. By diminishing these migrations, fishing pressure could disrupt cross‐ecosystem connectivity, thereby altering predator–prey interactions and community size structure.
Ben R. J. Crichton, Michael J. H. Hickford, Angus R. McIntosh, David R. Schiel   +3 more
wiley   +1 more source

Helminth parasitism of Galaxias maculatus (Jenyns 1842) in southwestern Australia [PDF]

Ecology of Freshwater Fish, 2006
Abstract –  One cestode, Ligula sp. [possibly Ligula intestinalis (L.)], one trematode, Diplostomum sp., and two nematode parasitic worms, Eustrongylides sp. [possibly Eustrongylides gadopsis (Royal Society of South Australia, 64, 340)] and Contracaecum sp.
Chapman, A., Hobbs, R.P., Morgan, D.L., Gill, H.S.   +3 more
openaire   +1 more source

Population Ecology of Freshwater Mussels Hyridella narracanensis and H. drapeta in South‐Eastern Australia

Freshwater Biology, Volume 70, Issue 8, August 2025.
ABSTRACT Freshwater mussels are in decline worldwide, and their conservation is limited by a lack of understanding of species ecology and biology, particularly in the southern hemisphere. Hyridella narracanensis is a threatened species which is co‐distributed with a more abundant congener, H. drapeta.
Sarah Treby, Tarmo A. Raadik, Caitlyn L. Parsons, Nicholas P. Murphy   +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)

Gayana, 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, Iván Valdebenito, Claudio Palma-Rojas   +2 more
doaj  

Culvert baffle design to improve fish passage for small‐bodied fishes: A rapid evidence synthesis

Conservation Science and Practice, Volume 7, Issue 7, July 2025.
The overall weight of evidence indicates that the addition of baffles generally increases the passage of small‐bodied fishes through culverts. However, there is an emerging consensus that baffles that minimize the generation of large recirculation zones while maximizing the area of low velocities are most suitable for enhancing passage.
Paul A. Franklin, Cindy F. Baker
wiley   +1 more source