Results 61 to 70 of about 627 (147)

Allometric Scaling in Environmental DNA Concentration of Japanese Eel Anguilla japonica Confirmed Under Laboratory and Natural Conditions 日本鳗 (Anguilla japonica) 环境 DNA 浓度中的异速生长标度在实验室和自然条件下得到证实

open access: yesIntegrative Conservation, Volume 4, Issue 4, Page 675-685, December 2025.
We demonstrated that Anguilla japonica eDNA concentration was allometrically scaled with their body size in both the laboratory and riverine environments. Integrating body size allometry has the potential to improve population abundance estimates in the field, whereas further clarification is required for understanding eDNA production mechanisms ...
Toshiaki S. Jo   +2 more
wiley   +1 more source

THE NEEDS AND IMPORTANCE OF FATTY ACIDS IN THE NUTRITION OF FISH [PDF]

open access: yesCroatian Journal of Fisheries, 1996
According to the needs for the essential fatty acids, the fish can be classified in three groups: For the fish from Salrrwnidae family (Oncorhynhcus kisutch, O. keta, O. nerka and O. tshawytscha) the essential is 18: 3 in the quantity of 1%.
Ivan Bogut, Anđelko Opačak
doaj  

Reviewing the Potential for Behavioral Guidance to Improve Downstream Passage of Out‐Migrating Anguillid Eels

open access: yesRiver Research and Applications, Volume 41, Issue 10, Page 2287-2296, December 2025.
ABSTRACT Hydroelectric dams and their turbine infrastructure threaten out‐migrating anguillid eels en route to marine spawning grounds. For decades, invested parties have attempted to guide eels away from turbines and toward safe passage routes. A subset of this work (hereafter behavioral guidance) has involved exploiting sensory biology (e.g., sight ...
M. E. Cole MacLeod   +4 more
wiley   +1 more source

Sulawesi Stream Fish Communities Disconnected From the Sea: Absence of Diadromous and Dominance of Exotic Species

open access: yesFreshwater Biology, Volume 70, Issue 12, December 2025.
ABSTRACT Barriers can profoundly alter the composition of stream communities. In the tropical island of Sulawesi, streams are inhabited by a diversity of secondary freshwater fishes, mostly diadromous species. Many streams, however, are modified by human activities for various reasons, involving the construction of barriers that impede fish migration ...
Letha Louisiana Wantania   +6 more
wiley   +1 more source

Habitat Matters: Exploring the Preferences of the European Eel (Anguilla anguilla) in Short Karstic Lotic Ecosystems

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 35, Issue 11, November 2025.
ABSTRACT Since the early 1980s, the recruitment of the European eel (Anguilla anguilla L.) to the European continent has declined dramatically. There is a lack of research utilizing biotic variables to determine European eel habitat selection, particularly in short karstic coastal catchments.
Marina Piria, Tea Tomljanović
wiley   +1 more source

Revealing Chronotypes Across Aquatic Species Using Acoustic Telemetry

open access: yesFish and Fisheries, Volume 26, Issue 6, Page 1134-1145, November 2025.
ABSTRACT Acoustic telemetry offers valuable opportunities to investigate individual variability in circadian‐related and other behaviours and how environmental cues shape these patterns in wild fish populations. However, this potential has not yet been fully exploited.
Martina Martorell‐Barceló   +27 more
wiley   +1 more source

A Curved‐Bar Rack‐Bypass System With Innovative Foil Shaped Bars: Hydraulics, Operational Aspects, and Swimming Behavior of Downstream Moving Brown Trout

open access: yesWater Resources Research, Volume 61, Issue 9, September 2025.
Abstract Curved bar rack ‐ bypass systems (CBR‐BS) are a promising technology for diverting downstream moving fish away from hydropower intakes. A CBR functions as a mechanical behavioral barrier by creating high velocity and pressure gradients along its bars, guiding approaching fish that exhibit avoidance reactions towards the bypass.
Fan Yang   +7 more
wiley   +1 more source

Les espèces : ordre des anguilliformes

open access: yes, 2011
[Notes_IRSTEA]Edition de 2001 révisée [Departement_IRSTEA]Eaux [TR1_IRSTEA]QUASARENational audienceStudy of eel order, anguillidae family and anguilla anguilla.Ces fiches présentent l'ordre des anguilliformes, la famille des Anguillidae et une ...
Elie, Pierre   +6 more
core   +3 more sources

Fig. 2 in Metazoan Parasites And Health State Of European Eel, Anguilla Anguilla (Anguilliformes, Anguillidae From Tonga Lake And El Mellah Lagoon In The Northeast Of Algeria

open access: yes, 2018
Fig. 2. Distribution of the swimbladder degenerative index (SDI) in eels from the two localities.Published as part of Bakaria, F., Belhaoues, S., Djebbari, N., Tahri, M., Ladjama, I.
Tahri, M.   +5 more
core   +1 more source

DNA Barcoding of Freshwater Eels Anguilla spp from Kuari River Based on Cytochrome C Oxidase Subunit I (COI) Gene

open access: yesJurnal Ilmiah Perikanan dan Kelautan
Graphical Abstract Highlight Research • Freshwater eels in Kuari River consisted of two species marmorata and A. bengalensis • Anguilla marmorata had the highest similarity of 99.82%-100%, while bengalensis indicated the highest identity of 99 ...
Ainayyah Maulidya   +2 more
doaj   +1 more source

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