Results 101 to 110 of about 10,962 (212)

Relationship between fish size and otolith length for 63 species of fishes from the Eastern North Pacific Ocean [PDF]

, 2000
Otoliths commonly are used to determine the taxon, age, and size of fishes. This information is useful for population management, predator-prey studies, and archaeological research.
Harvey, James T., Loughlin, Thomas R., Oxman, Dion S., Perez, Michael A.   +3 more
core  

Comparative Study of Genome Divergence in Salmonids with Various Rates of Genetic Isolation

International Journal of Genomics, 2013
The aim of the study is a comparative investigation of changes that certain genome parts undergo during speciation. The research was focused on divergence of coding and noncoding sequences in different groups of salmonid fishes of the Salmonidae (Salmo ...
Elena A. Shubina, Mikhail A. Nikitin, Ekaterina V. Ponomareva, Denis V. Goryunov, Oleg F. Gritsenko   +4 more
doaj   +1 more source

An endogenous crepuscular rhythm of rainbow trout (Salmo gairdneri) photomechanical movements [PDF]

, 1982
1. The position of the epithelial pigment and cones in the retina of Salmo gairdneri was determined during extended periods of darkness in fish entrained to both artificial and natural light/dark cycles. 2. An endogenous rhythm of such photomechanical
Douglas, R. H.
core  

Synthesis of academic and traditional ecological knowledge identifies ancient and ongoing hybridization of whitefish species in Beringia

Ecological Solutions and Evidence
Hybridization, the production of offspring mixing genetically distinct ancestries, occurs in nature under diverse circumstances. The prevalence, timing and spatial distribution of hybridization may vary along with other attributes of the hybridizing ...
Kevin M. Fraley, Randy J. Brown, Alex Whiting, William K. Carter III, J. Andrés López, Martin D. Robards, Matthew A. Campbell   +6 more
doaj   +1 more source

An annotated checklist of freshwater fishes of Armenia [PDF]

, 2001
A list of freshwater fishes inhabiting lakes, reservoirs and rivers of Armenia is presented which include 39 species and subspecies belonging to 5 orders, 9 families and 29 genera.
Gabrielyan, B.K.
core  

Fresh records on Ichthyofaunal diversity of River Panjkora Dir, Khyber Pakhtunkhwa, Pakistan

Brazilian Journal of Biology
This study was designed to assess the ichthyofaunal diversity of River Panjkora, Khyber Pakhtunkhwa, Pakistan. For this purpose, a total of 1189 fish from six different sites were collected along the river and identified using standard keys.
Mohsin Ullah Mohsin, Ali Muhammad Yousafzai   +1 more
doaj   +1 more source

Thermal Tolerances of Interior Alaskan Arctic Grayling (Thymallus arcticus) [PDF]

, 1973
The work upon which this report is based was supported in part by funds (Project A-041-ALAS) provided by the United States Department of the Interior, Office of Water Resources Research, as authorized under the Water Resources Act of 1964, as ...
Carlson, Robert F., LaPerriere, Jacqueline D.   +1 more
core  

Hydrology and Biology of Tadjan River

‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2017
Tadjan River is the habitat of two groups of fishes, Sturgeon and teleost. Research survey in this river shows that the fish species basically belong to 6 families of Cyprinidae, Mugilidae, Gobbidae, Acipenseridae, Salmonidae and Esocidae. All studies on
M. Roshan tabari
doaj  

Fishes of Maine. [PDF]

, 1950
Everhart, W. Harry (Watson Harry), 1918-, Maine. Dept. of Inland Fisheries and Game.   +1 more
core   +2 more sources

Influences of Diet Quality, Nursery‐Habitat Complexity and Sex on Brain Development and Cognitive Performance of Brown Trout (Salmo trutta L.)

Ecology and Evolution
Access to omega‐3 long‐chain polyunsaturated fatty acids (n‐3 LC‐PUFA) and habitat complexity have been proposed to influence brain development and cognitive ability.
J. Peter Koene, Libor Závorka, Matthias Pilecky, Kathryn R. Elmer, Colin E. Adams   +4 more
doaj   +1 more source