Results 61 to 70 of about 60,633 (226)

Evaluation of water quality and toxicity after exposure of lead nitrate in fresh water fish, major source of water pollution

open access: yesEgyptian Journal of Aquatic Research, 2019
The present study was conducted to investigate the water quality, genotoxicity, histopathological changes in the gill, liver and kidney of common carp, Cyprinus carpio, after exposure to lead nitrate.
Saili Paul   +5 more
doaj   +1 more source

Sistem Mina Padi Di Desa Manik Rambung Mendukung Ketahanan Pangan Sumatera Utara [PDF]

open access: yes, 2015
Rice and fish have been an essential part of the life of Indonesian people which produce from rice field. The research was conducted during two years (Dec.2008 to Sept.2010) using a purposive random sampling using three plots in lowland and terrace from ...
Siregar, A. Z. (Ameilia)
core  

Nitrogen excretion and oxygen consumption under severe hypoxia in siluriform fishes from the Amazon

open access: yesJournal of Fish Biology, EarlyView.
Abstract Siluriform fishes collected from the Rio Negro and Rio Solimões proved to be highly resistant to aquatic hypoxia. In all four species analysed in this study, aquatic oxygen consumption significantly decreased from normoxic levels at water PO2 values near 1 kPa. Air‐breathing activity was observed only in Sturisoma sp. (Rio Negro).
Bernd Pelster   +2 more
wiley   +1 more source

?? ??? ??????- ???? ??????Cyprinus carpio L. ???????? ??????? ?? ???? ????? ???? ?????? ?????????

open access: yesمجلة علوم ذي قار, 2019
The present study includes monitoring the development and maturation in females ovaries Cyprinus carpio L.Which were collected from Al-Hammar Marsh south Iraq, from July 2006 to June 2007 , selected environmental factors( such as air and water temperature ,salinity and day light) were measured in the study area .
openaire   +3 more sources

Molecular Phylogeny and Evolutionary History of the Genus Cyprinus (Teleostei: Cypriniformes)

open access: yesFishes
The genus Cyprinus encompasses economically vital freshwater fish species; yet the phylogenetic relationships and evolutionary history of many taxa within this genus remain unresolved.
Yanyan Chen   +5 more
doaj   +1 more source

Influence of music on the growth of koi carp, Cyprinus carpio (Pisces: Cyprindae) [PDF]

open access: yes
An experiment was carried out to investigate the influence of music on the growth of Koi Carp (Cyprinus carpio) by subjecting the fish to music. Weekly growth in weight was recorded and used to calculate the growth rate and specific growth rate.
Jeyakumar, A.   +2 more
core  

Palynomorphs of brackish and marine species in cores from the freshwater Lake Sapanca, NW Turkey [PDF]

open access: yes, 2010
Lake Sapanca, which is located on the Sakarya–Sapanca–İzmit corridor in NW Turkey, is a freshwater lake with numerous fish farms in its catchment. Palynological analyses including non-pollen palynomorphs of a short (38.5 cm) and a longer sediment core ...
Aksu   +49 more
core   +1 more source

‘It's not much, but it's honest work’: The status of environmental DNA analyses of fish biodiversity in southern Africa

open access: yesJournal of Fish Biology, EarlyView.
Abstract Environmental DNA (eDNA) biodiversity surveys have the power to transform the detection of species in natural environments, which is crucial for the conservation and management of freshwater, estuarine and marine environments. Globally, eDNA‐based analyses have increased significantly, with fishes being the most widely studied aquatic ...
Sophie von der Heyden
wiley   +1 more source

MORPHOLOGICAL AND MOLECULAR DIFFERENTIATION OF Clinostomum complanatum (Digenea: Clinostomidae) METACERCARIAE INFECTING Cyprinus carpio IN ARAS RIVER

open access: yesSlovenian Veterinary Research
Clinostomiasis is one of the parasitic diseases infecting freshwater fish caused by digenean trematode of the Clinostomidae family. In this study a total of 100 fish belonging to the nine species were collected from Aras River in 2021-2022.
Zahra Heidari   +6 more
doaj   +1 more source

Fishes of the Caddo River, Arkansas, After Impoundment of DeGray Lake [PDF]

open access: yes, 1978
Fifty-five collections of fishes were made with small-mesh seines and electrofishing gear in the Caddo River and four of its tributaries during 1974-75. Eighty-two species representing 17 families were collected; 14 of the species had not previously been
Dewey, Michael R., Moen, Thomas E.
core   +2 more sources

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