Results 61 to 70 of about 1,946,041 (195)

Delaware River Basin Commission 2004 Integrated List Assessment Methodology

, 2004
This assessment methodology discusses how the main stem of the Delaware River and the Delaware Bay are broken up into Assessment Units (AU) and how data collected from within those AUs are used to evaluate designated use support. The designated uses that

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Delaware Toxics Reduction Program: Annual Report, 2007

, 2007
The Delaware River Toxics Reduction Program (DelTRiP) was created in 2004 as a joint effort between the Delaware River Basin Commission (DRBC), the United States Environmental Protection Agency (EPA), the Pennsylvania Department of Environmental ...

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Fishes in first order stream in Ivaí River drainage basin, upper Paraná River Basin, Paraná state, Brazil [PDF]

Check List, 2011
Itiz Stream is a first order tributary of the Ivaí River basin, located in a rural area of Marialva municipality, Paraná state. Fish were sampled in October, November and December 2007, September 2008 and March 2009, using electrofishing and a sieve ...
Maria Isabel de Araújo, Rosilene Luciana Delariva, Karine Orlandi Bonato, Jislaine Cristina da Silva   +3 more
doaj   +3 more sources

[PROVISIONAL] Genetic evidence for a species complex within the piranha Serrasalmus maculatus (Characiformes, Serrasalmidae) from three Neotropical River basins based on mitochondrial DNA sequences

Genetics and Molecular Biology
Mitochondrial molecular markers (DNA sequences of D-loop, cytochrome b and cytochrome c oxidase I) were employed to characterize populations of the piranha Serrasalmus maculatus from Upper Paraná, Upper Paraguay and Tocantins River basins.
Thaís Souto Bignotto, Thiago Cintra Maniglia, Vivian Nunes Gomes, Isadora Janolio de Oliveira, Carlos Sérgio Agostinho, Sônia Maria Alves Pinto Prioli, Alberto José Prioli   +6 more
doaj   +1 more source

Fishes (Osteichthyes: Actinopterygii) from the Penacho stream, upper Paraná River basin, Paraná state, Brazil [PDF]

Check List, 2013
The focus of this work was to survey the ichthyofauna of the Penacho stream, a tributary of the Laranjinha River, northeastern Paraná State, in an area of the Upper Paraná River basin still devoid of ichthyofaunal studies.
Alexandro Costa, Dhiego Ferreira, Wilson Silva, Augusto Zanatta, Oscar Shibatta, Bruno Galindo   +5 more
doaj   +3 more sources

Phylogeography of Hypostomus strigaticeps (Siluriformes: Loricariidae) inferred by mitochondrial DNA reveals its distribution in the upper Paraná River basin

Neotropical Ichthyology
In this study, phylogenetic and phylogeographic analyses of populations identified as Hypostomus strigaticeps from the upper Paraná River basin were conducted in order to test whether these different populations comprises cryptic species or structured ...
Rafael Splendore de Borba, Claudio Henrique Zawadzki, Claudio Oliveira, Anabel Perdices, Patricia Pasquali Parise-Maltempi, Anderson Luis Alves   +5 more
doaj   +1 more source

Freshwater Biodiversity Research in Brazil: Trends from a Systematic Review and Topic Modeling

International Review of Hydrobiology, Volume 111, Issue 2, December 2026.
ABSTRACT Brazil is a megadiverse country that hosts six major biomes and a vast freshwater network. Despite this richness, research on freshwater biodiversity has been heterogeneous across regions, communities, and time, leaving significant knowledge gaps.
Paula Caroline dos Reis Oliveira, Betina Kozlowsky‐Suzuki, Cleber Cunha Figueredo, Adriana Oliveira Medeiros, Doriedson Ferreira Gomes, Christina W. Castelo Branco, Priscilla Carvalho, Renan de Souza Rezende, Tássia Malacarne, Vivian de Mello de Cionek, Iola Gonçalves Boëchat, Paulo Henrique Costa Corgosinho, Fabrício Barreto Teresa, Rodrigo Assis de Carvalho, Larissa Corteletti da Costa, Lucia Ribeiro Rodrigues, Gustavo Stolzenberg Colares, Louise Cristina Gomes, Fabiana Schneck, Renato Tavares Martins, Thaisa Sala Michelan, Matheus Maximilian Ratz Scoarize, Rosilene Luciana Delariva, Evanilde Benedito, Björn Gücker   +24 more
wiley   +1 more source

The Delaware Toxics Reduction Program (DelTRiP)

, 2007
This pamphlet provides some introductory information about the Delaware Toxics Reduction Program (DelTRiP). DelTRiP is a multi-agency effort chaired by the DRBC to identify, track, prioritize, and report the status of contaminated sites that contribute ...

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Fish Assemblages in an Urbanized Neotropical Basin: Influence of Environmental Factors Across Dry and Rainy Periods

International Review of Hydrobiology, Volume 111, Issue 2, December 2026.
ABSTRACT This study investigated the effects of season and environmental disturbances on fish communities in neotropical rivers of the Sorocaba basin, a Sub‐Basin of the Paraná River in Southeast Brazil, based on sampling 1196 individuals from 49 species, including two non‐native and one threatened with extinction.
Natalia S. Alves, Daiane E. Cavallari, Welber S. Smith   +2 more
wiley   +1 more source

2008 Delaware River and Bay Integrated List Water Quality Assessment

, 2008
This report provides an assessment of waters in the Delaware River and Bay for support of various designated uses in accordance with Section 305(b) of the Clean Water Act and identifies impaired waters, which consist of waters that do not meet Delaware ...

core   +1 more source