Results 91 to 100 of about 10,962 (212)

Diets of shags Phalacrocorax aristotelis and cormorants P. carbo in Norway and possible implications for gadoid stock recruitment [PDF]

open access: yes, 1990
The diets of shags and cormorants were studied in Norway through analyses of regurgitated pellets. Although this method has many limitations, indications were that both species rely heavily on small gadoids (Gadidae) and sand eels (Ammodytidae) for food ...
Barrett, R. T.   +3 more
core   +1 more source

Environmental DNA detection of Arctic char (Salvelinus alpinus) in Irish lakes: Development and application of a species‐specific molecular assay

open access: yesEnvironmental DNA, 2020
Populations of Arctic char (Salvelinus alpinus) inhabiting Irish lakes are undergoing a rapid decline. In order to aid monitoring of this species in Irish lakes, a species‐specific qPCR assay was designed and subsequently tested for the detection of ...
Luca Mirimin   +6 more
doaj   +1 more source

Fishes of the Mountain Province Section of the Ouachita River [PDF]

open access: yes, 1978
A survey of the fishes of the mountain province section of the Ouachita River from the headwaters to Remmel Dam using field collections, literature records, and museum collections showed the ichthyofauna to be made up of 80 species representing 16 ...
Douglas, Neil H., Harris, John L.
core   +2 more sources

Introduced species of freshwater fish of Croatia [PDF]

open access: yes, 2012
Velika prijetnja ribama kao jednoj od najstarijih, vrstama najbrojnijih i zasigurno najugroženijih skupina kralješnjaka je, između ostalih, unos alohtonih vrsta. Alohtone vrste su one koje su se slučajno ili namjerno proširile izvan svog prirodnog areala.
Grba, Adriana
core   +2 more sources

Researches Concerning Reference Values Assessment of Serum Biochemical Parameters in some Fish Species from Acipenseridae, Cyprinidae, Esocidae and Salmonidae Family

open access: yesScientific Papers Animal Science and Biotechnologies, 2023
The purpose of this work was to assess reference values of serum biochemical indices (enzymes, metabolites and minerals) in some representative fish species belonging to Acipenseridae, Cyprinidae, Esocidae and Salmonidae family in order to establish a ...
Marioara Nicula   +7 more
doaj  

SOME CHARACTERISTICS OF THE ENDEMIC DENTEX TROUT, Salmo dentex (Heckel, 1851) FROM THE NERETVA RIVER, BOSNIA–HERZEGOVINA [PDF]

open access: yes, 2006
The paper confirms the presence of endemic dentex trout, Salmo dentex population in the Neretva River, Bosnia–Herzegovina. All catches were limited to main flow of the Neretva River close to town of Čapljina and colder areas of Hutovo Blato wetlands. All
B. Glamuzina, V. Bartulović
core  

Fishes Distribution Assay in Tonekabon River

open access: yes‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 1999
This research was done in Tonekabon river in 1996. The results indicated that the Tonekabon river fishes belong to 5 families as Salmonidae, Cyprinidae, Athenrinidae, Cobitidae and Gobiidae.
M. Afraei; F. Laloei
doaj  

Scanning Electron Microscopy of the Rainbow Trout (Salmo gairdneri Richardson) Spermatozoon [PDF]

open access: yes, 1976
The scanning electron microscope was used to determine the morphology of the rainbow trout (Salmo gairdneri Richardson) spermatozoon. The spermatozoon is approximately 32 μm long and consists of a head, mitochondrial collar, and flagellum.
Fribourgh, James H., Soloff, Bernard L.
core   +2 more sources

Istanbul Ili (Turkiye) Tatlisu Balik Faunasi

open access: yesTurkish Journal of Bioscience and Collections, 2019
Bu calisma ile, hem Avrupa hem de Asya kitalarinin etkisinde kalan Istanbul ilinin ic su balik faunasinin belirlenmesi amaclanmistir. Balik orneklemesi lotik ve lentik biyotoplardaki 136 farkli lokalitede DC Elektrosoker ve sade ag kullanilarak ...
Mufit OZULUG, Gulsah SAC
doaj  

BIOCHEMICAL STUDIES OF SALMONIDAE. I

open access: yesBulletin of the Agricultural Chemical Society of Japan, 1929
The eggs (52 days old) lose of water and solids until they hatch out, but there are increasion of inorganic matters and alcohol soluble phosphorus (lecithine like substance) and decreasion of proteins and lipins. Some amounts of these decreased substances come probably from the constituents of the egg's membrance and the substances of its perivitellin ...
openaire   +2 more sources

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