Results 61 to 70 of about 3,177 (214)

River Connectivity in Dammed Areas Studied Through Environmental DNA Metabarcoding at Community and Species Levels

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 2, February 2026.
ABSTRACT The field of environmental DNA (eDNA) is rapidly expanding with established applications in biodiversity monitoring, rare species detection and ecological assessment. However, its potential to evaluate species connectivity in fragmented aquatic systems remains underexplored.
Sara Fernández, Alba Ardura, Eva Garcia‐Vazquez   +2 more
wiley   +1 more source

Comparison between the distributions of land-locked Atlantic salmon Salmo salar L. and three-spined stickleback Gasterosteus aculeatus L. in the river Namsen, Norway

Fauna Norvegica, 1984
The land-locked salmon Salmo salar L. in the river Namsen is found up-stream to a waterfall situated 290 m above s.l. It is found both above and below the Trongfoss waterfall in the main river. The three-spined stickleback Gasterosteus aculeatus L.
Ole Kristian Berg
doaj   +1 more source

Multiple-locus heterozygosity, physiology and growth at two different stages in the life cycle of the Chilean oyster Ostrea chilensis [PDF]

, 1996
A random sample of 150 individuals of a laboratory-produced cohort of Ostrea chilensis Philippi, 1845 was taken at 10 and 36 mo of age to estimate physiological variables and individual heterozygosity using 4 loci (Lap, Pgi, Pgm and Ca).
Gallegillos, R., Toro, J.E., Vergara, A.M.   +2 more
core   +2 more sources

Growth Performance and Intestinal Health of Triploid Rainbow Trout (Oncorhynchus mykiss) Through Bile Acid Supplementation in Low Fishmeal Diets: Insights From Metabolomics, Microbiota, and Gene Expression

Aquaculture Nutrition, Volume 2026, Issue 1, 2026.
This research aimed to explore the impact of bile acid (BA) supplementation in low fishmeal diets on growth performance, serum biochemical indices, tissue morphology, lipid metabolism, gene expression, and gut microbiota in triploid rainbow trout (Oncorhynchus mykiss, initial weight 15.97 ± 1.4 g).
Huamin Wang, Siyuan Liu, Zhenhua Ma, Shidi Wang, Shuze Zhang, Shaoxia Lu, Shicheng Han, Haibo Jiang, Gefeng Xu, Hongbai Liu, Chang’an Wang, Cláudia Aragão   +11 more
wiley   +1 more source

Optimal Strouhal number for swimming animals [PDF]

, 2011
To evaluate the swimming performances of aquatic animals, an important dimensionless quantity is the Strouhal number, St = fA/U, with f the tail-beat frequency, A the peak-to-peak tail amplitude, and U the swimming velocity.
Abramowitz, Anderson, Anderson, Archer, Bainbridge, Bainbridge, Barrett, Blake, Blickhan, Borazjani, Brett, Bénard, Candelier, Cheng, Christophe Eloy, D'Août, D'Août, Dewar, Dickson, Doaré, Donley, Dowis, Ellerby, Fish, Fish, Fish, Gillis, Gillis, Gray, Hess, Horner, Huerre, Hunter, Jayne, Jordan, Kayan, Kern, Kojeszewski, Koochesfahani, Lauder, Liao, Lighthill, Lighthill, Long, Long, Long, Lowe, McMillen, Müller, Müller, Müller, Nauen, Parrish, Pier, Rayleigh, Read, Rinaldi, Rohr, Schouveiler, Schultz, Seebacher, Sfakiotakis, Shirgaonkar, Strouhal, Taylor, Triantafyllou, Triantafyllou, Triantafyllou, Tytell, Videler, Videler, Videler, Videler, Wardle, Wassersug, Webb, Webb, Webb, Webb, Webb, Webb, Webb, Webb, Webber, Wu, Wu, Yuen   +86 more
core   +3 more sources

Life history of a riverine, resident Atlantic salmon Salmo salar L.

Fauna Norvegica, 1988
The Mellingselva river, a tributary of the River Namsen, in central Norway, supports a population of freshwater resident Atlantic salmon (Salmo salar), which resembles a parr and which completes its entire life cycle in the river.
Ole Kristian Berg, Dagfinn Gausen
doaj   +1 more source

Puye farming (Galaxias maculatus), in a closed recirculation system [PDF]

, 2012
Este estudio muestra los antecedentes del cultivo larvario del puye, Galaxias maculatus (Jenyns), un pequeño pez de aguas frías del hemisferio sur. Para el cultivo, larvas recién eclosionadas fueron puestas en estanques de 500 litros de volumen útil. Las
Bórquez Ramírez, Aliro, Dantagnan Dantagnan, Patricio, Quevedo Ruíz, Javier, Valdebenito Isler, Iván   +3 more
core  

Mechanisms of co-existence of Heterocope saliens (Crustacea, Copepoda) and planktivorous fish

Fauna Norvegica, 1984
The simultaneous occurrence of Heterocope saliens and a large stock of Arctic char was investigated in the oligotrophic, coastal Lake Selura in SW Norway. Habitat-overlap of H. saliens and Arctic char was restricted mainly to June.
Ragnvald Andersen, Jens Petter Nilssen
doaj   +1 more source

Viral haemorrhagic septicaemia virus, infectious haematopoietic necrosis virus and HPR‐deleted infectious salmon anaemia virus – Risk of introduction in free areas through fertilised eggs and gametes

EFSA Journal, Volume 23, Issue 12, December 2025.
Abstract EFSA assessed the risk of introducing viral haemorrhagic septicaemia virus (VHSV), infectious haematopoietic necrosis virus (IHNV) and highly polymorphic region‐deleted infectious salmon anaemia virus (HPR‐deleted ISAV) into free areas through movement of fertilised eggs and gametes.
EFSA Panel on Animal Health and Welfare (AHAW), Søren Saxmose Nielsen, Julio Alvarez, Anette Boklund, Sabine Dippel, Jordi Figuerola, Mette S. Herskin, Virginie Michel, Miguel Angel Miranda Chueca, Eleonora Nannoni, Romolo Nonno, Anja B. Riber, Karl Ståhl, Jan Arend Stegeman, Hans‐Hermann Thulke, Frank Tuyttens, Christoph Winckler, Debes Hammershaimb Christiansen, Niels Jørgen Olesen, Espen Rimstad, Anna Toffan, Niccolò Vendramin, Stella Papaleo, Ludovica Preite, Francesca Baldinelli, Fernanda Dórea   +25 more
wiley   +1 more source

Managing cryptic biodiversity: fine-scale intralacustrine speciation along a benthic gradient in Alpine whitefish ( Coregonus spp.) [PDF]

, 2016
Whitefish (Coregonus spp.) are an important catch for many freshwater fisheries, particularly in Switzerland. In support of this, supplemental stocking of whitefish species is carried out, despite lacking complete knowledge of the extent, distribution ...
Eckmann R., Gavrilets S., Harrod C., Hudson A. G., Ingram T., Kottelat M., Magalhaes I. S., Siwertsson A., Smolina K., Steinmann P., Svärdson G.   +10 more
core   +6 more sources