Results 21 to 30 of about 3,003 (168)

The mitogenome of the southern Brook Lamprey,Ichthyomyzon gagei(Cyclostomata: Petromyzontidae) [PDF]

open access: yesMitochondrial DNA Part B, 2016
The southern brook lamprey (Ichthyomyzon gagei) is a non-parasitic lamprey endemic to the southeastern US. Here, we report the complete mitogenome of this basal vertebrate and found its genomic organization to be similar to that of other reported lamprey mitogenomes.
Rex Meade Strange   +2 more
openaire   +2 more sources

Vision in the Southern Hemisphere Lamprey Mordacia Mordax: Spatial Distribution, Spectral Absorption Characteristics, and Optical Sensitivity of a Single Class of Retinal Photoreceptor [PDF]

open access: yes, 2004
The dorso-laterally located eyes of the southern hemisphere lamprey Mordacia mordax (Agnatha) contain a single morphological type of retinal photoreceptor, which possesses ultrastructural characteristics of both rods and cones.
Collin, Shaun P.   +4 more
core   +2 more sources

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

Fishes of the Antoine River, Little Missouri River System, Southwestern Arkansas [PDF]

open access: yes, 1983
The fishes of the Antoine River (Little Missouri River system) in southwestern Arkansas were surveyed from September, 1980 - June, 1982. Thirty-four field collections plus literature and museum records, revealed a total of 60 species in 29 genera ...
Koym, Darryl   +2 more
core   +18 more sources

Demography of sea lamprey (Petromyzon marinus) ammocoete populations in relation to potential spawning-migration obstructions [PDF]

open access: yes, 2017
Copyright © 2017 John Wiley & Sons, Ltd. Recent advances in the understanding of lamprey migrations have led to concerns over the impacts of obstructions on the demography of many species. This study investigated sea lamprey (Petromyzon marinus) larvae
Bolland, J. D.   +5 more
core   +1 more source

Ethnozoological knowledge of traditional fishing villages about the anadromous sea lamprey (Petromyzon marinus) in the Minho river, Portugal

open access: yesJournal of Ethnobiology and Ethnomedicine, 2019
Background Sea lamprey (Petromyzon marinus) is a diadromous fish compromised by various stressors, which can lead to population decline and the urgency of stronger conservation regulation.
Heitor Oliveira Braga   +4 more
doaj   +1 more source

Prioritization of fish communities with a view to conservation and restoration on a large scale European basin, the Loire (France) [PDF]

open access: yes, 2008
The hierarchical organization of important sites for the conservation or the restoration of fish communities is a great challenge for managers, especially because of financial or time constraints.
A Baisez   +59 more
core   +4 more sources

Petromyzon marinus (Petromyzontidae), an unusual host for helminth parasites in western Europe [PDF]

open access: yesDiseases of Aquatic Organisms, 2015
The sea lamprey Petromyzon marinus, which is among the most phylogenetically ancient vertebrates, is a hematophagous ectoparasite that feeds on vertebrates and is considered vulnerable in Europe but is a pest in the North American Great Lakes. We conducted a literature review of helminth parasites of P. marinus and investigated postmetamorphic lampreys
Gérard, Claudia   +3 more
openaire   +5 more sources

Patterns of Freshwater Fish Vulnerability in European Rivers

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 5, May 2026.
ABSTRACT European rivers are home to more than 600 native freshwater‐dependent fish species, with nearly half of them raising some level of conservation concern. Tackling this decline requires prioritising efforts towards the most vulnerable communities, at a spatial scale aligned with river restoration.
Daniel Mameri   +7 more
wiley   +1 more source

A Meta‐Analysis on Environmental Triggers of Spawning Migrations Reveals a New Classification of Thermal Guilds in European Freshwater Fishes

open access: yesFish and Fisheries, Volume 27, Issue 3, Page 478-495, May 2026.
ABSTRACT Fish migration through river networks is essential for completing life cycles and accessing critical habitats, but fragmentation increasingly disrupts spawning movements. In Europe, over one million barriers limit connectivity and create trade‐offs between ecological integrity and human uses, such as hydropower, flood control, fisheries and ...
Christian Schlautmann   +5 more
wiley   +1 more source

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