Results 31 to 40 of about 13,923 (215)

The features of the natural fish productivity formation of a shallow reservoir free of ichthyofauna on the western slope of the Volga upland within Penza region

open access: yesИзвестия высших учебных заведений. Поволжский регион: Естественные науки, 2023
Background. The development of “artisanal” aquaculture, fish farming, fish cultivation in reservoirs of complex purpose is given great importance, both at the global level, in the Russian Federation and in Penza region.
Alik Yu. Asanov
doaj   +1 more source

Environmental Changes Produced by Cold-Water Outlets from Three Arkansas Reservoirs [PDF]

open access: yes, 1971
Water qualities of two natural streams (Buffalo and Kings Rivers), one new coId-tailwater (Beaver), and two old coId-tailwaters (Norfork and Bull Shoals) in northwestern Arkansas were studied from July 1965 through October 1968.
Hoffman, Carl E., Kilambi, Raj V.
core   +2 more sources

Hepatic morphology and serum biochemical profile according to dry and rainy seasons in Pygocentrus nattereri (Characiformes: Serrasalmidae)

open access: yesThe Anatomical Record, EarlyView.
Abstract This study investigated the physiological and morphological adaptations of the liver of the carnivorous fish Pygocentrus nattereri (piranha) in response to seasonal variations (dry and rainy seasons) in the Brazilian Pantanal. The objective was to describe how the liver, a central organ in metabolic regulation, responds to environmental ...
Maria Eduarda Corona Garcia   +9 more
wiley   +1 more source

Fish species richness and species diversity in the Uday river within the nationalnature park «Pyryatynsky»

open access: yesRibogospodarsʹka Nauka Ukraïni, 2018
Objective. Determination of species richness, species diversity and distribution of fishes in the Uday River within the National Nature Park “Pyryatynskiy” as well as determination of the prioritization in providing the special protection regime for some
I. Koshovyi, A. Podobailo, A. Shustov
doaj   +1 more source

MicroCT reinvestigation of the only articulated fossil anostomid fish reveals synonymy of Arhinolemur Ameghino, 1898 and Megaleporinus Ramirez et al., 2017

open access: yesThe Anatomical Record, EarlyView.
Abstract Arhinolemur scalabrinii† Ameghino, 1898 was originally described as a strepsirrhine primate (Mammalia) but has been recognized as an anostomid fish since 2012. It remains the only extinct anostomid species known from complete cranial material.
Karen M. Panzeri   +8 more
wiley   +1 more source

Ichthyofauna from the Emas National Park region: composition and structure

open access: yesBrazilian Journal of Biology
The relationship between habitats and the ichthyofauna composition in the Parque Nacional das Emas (PNE) and adjacent areas (the Araguaia and Sucuriú rivers) are provided and could be applied in determining the Park's future zoning.
E. Benedito-Cecilio   +5 more
doaj   +1 more source

Preimpoundment Ichthyofaunal Survey of the Piney Creek Watershed, Izard County, Arkansas [PDF]

open access: yes, 1974
Piney Creek is a clear medium-size tributary of White River in a region of the Ozarks that is undergoing rapid environmental change. Piney Creek is characterized by a very diverse ichthyofauna, although increased sedimentation due to poor agricultural ...
Harp, George L., Matthews, William J.
core   +2 more sources

Freshwater fish functional diversity shows diverse responses to human activities, but consistently declines in the tropics

open access: yesEcography, EarlyView.
Freshwater environments are intertwined with human activities and the consequence has been environmental degradation and biodiversity loss. Fish provide key ecological and economic benefits, and fish abundance and diversity can be affected by human activities resulting in functional diversity (FD) changes that might scale up to ecosystem impacts ...
Romullo Guimarães de Sá Ferreira Lima   +3 more
wiley   +1 more source

Update of Ichthyofauna and its Conservation Status in the Aghien Lagoon, Côte d’Ivoire

open access: yesCroatian Journal of Fisheries, 2019
This study focused on the diversity of fish fauna, its conservation status and its vulnerability in the Aghien freshwater lagoon (southeast of Côte d'Ivoire).
Konan Koffi Félix   +3 more
doaj   +1 more source

Fishes of the Strawberry River System of Northcentral Arkansas [PDF]

open access: yes, 1974
A survey of the fishes of the Strawberry River in northcentral Arkansas was made between August 1967 and November 1973. Field collections, literature records and museum specimens showed the ichthyofauna of the Strawberry River to be made up of 95 species
Beadles, John K., Robison, Henry W.
core   +2 more sources

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