Results 41 to 50 of about 245 (154)
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 +4 more
wiley +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 +3 more
wiley +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 +3 more
wiley +1 more source
A consideration of the whitebait stage of Galaxias maculatus attenuatus (Jenyns) [PDF]
New Zealand Journal of Marine and Freshwater Research, 1968 Summary The size composition of a season's catch of Galaxias maculatus attenuatus (Jenyns) whitebait is given. An analysis of consecutive catches shows that there is no overall increase in the size of the whitebait caught.
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Stages in the normal development of Galaxias maculatus attenuatus (Jenyns) [PDF]
New Zealand Journal of Marine and Freshwater Research, 1968 Summary The sequence of embryonic development is described for Galaxias maculatus attenuatus (Jenyns). Standard stages are described and the rate of development at two different constant temperatures is given. Field results are compared with these data. It appears that
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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 +3 more
wiley +1 more source
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 +2 more
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Otolith microstructural and microchemical changes associated with settlement in the diadromous fish Galaxias maculatus [PDF]
Marine Ecology Progress Series, 2008 The presence of a settlement mark in the otoliths of the common galaxid Galaxias maculatus was validated by examining the relationship between changes in otolith microstructure and otolith microchemistry. Two methods were used to examine the microchemistry of otoliths: (1) laser-ablation multi-collector inductively-coupled plasma mass spectrometry (LA ...
R Hale, SE Swearer
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A Tasmanian landlocked population of the normally diadromous fish Galaxias maculatus (Jenyns) [PDF]
Papers and Proceedings of The Royal Society of Tasmania, 1982 A landlocked population of the normally diadromous fish Calaxias maculatus is recorded for the first time from Tasmania. The differences between the landlocked population and normal diadromous C. maculatus are examined and discussed. The association with other species together with the probable mode of origin of the landlocked population are ...
openaire +2 more sources
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