Results 61 to 70 of about 48,745 (211)

Deciphering the complex life cycle and partial migration of an ecological engineer and critical Neotropical fishery species, Prochilodus costatus

Journal of Fish Biology, EarlyView.
Abstract Understanding complex migration patterns, including drivers of partial migration and habitat use, is challenging but essential for conservation, as it determines a species' adaptative capacity in the face of environmental change and anthropogenic threats.
Alexandre Peressin, João de Magalhães Lopes, Francisco Ricardo Andrade Neto, Gilmara Junqueira Machado, Carlos Bernardo Mascarenhas Alves, Luis David Solis Murgas, Paulo Santos Pompeu   +6 more
wiley   +1 more source

Amazonian drought of 2023: Environmental conditions relevant to fishes

Journal of Fish Biology, EarlyView.
Abstract This paper provides a platform for the following studies within this Special Issue. ‘Ecophysiology of fishes in the two great tributaries of the Amazon in the Anthropocene’. It documents the water quality conditions and accompanying zooplankton community structure and biomass relative to fish health in the Rio Negro and Rio Solimões during the
Ora E. Johannsson, Thiago L. Nascimento, Helen Agasild, Priit Zingel, Rafael M. Duarte, Gudrun de Boeck, Anne Cremazy, Jhonatan Mota da Silva, Carolyn Morris, Chris M. Wood, Adalberto L. Val   +10 more
wiley   +1 more source

A new South American darter (Crenuchidae: Characidium) from rivers draining the Northeastern Mata Atlantica Freshwater Ecoregion, Brazil: morphological and molecular evidence

Journal of Fish Biology, EarlyView.
Abstract Characidium tupi, a new species from rivers draining the southern portion of the Northeastern Mata Atlantica Freshwater Ecoregion, is described. The new species can be distinguished from all congeners by its colour pattern, including 7–14 dark bars enlarged and more conspicuous on their ventralmost portion, resulting in a longitudinal series ...
Angela M. Zanata, Leonardo Oliveira‐Silva   +1 more
wiley   +1 more source

Beta diversity of macroinvertebrate assemblages associated with aquatic macrophytes in shallow lakes within a tropical floodplain-dammed river [PDF]

Acta Limnologica Brasiliensia
: Aims We assessed the beta diversity of macroinvertebrates associated with aquatic macrophytes in a dam-regulated river floodplain. We tested two hypotheses: (1) macroinvertebrates associated with aquatic macrophytes have higher beta diversity (higher ...
Marcos Callisto, Ricardo Solar, Daiana dos Reis Pelegrine, Marden Seabra Linares   +3 more
doaj   +1 more source

Reptilia, Squamata, Serpentes, Typhlopidae, Typhlops amoipira Rodrigues and Juncá, 2002: Range extension and new state record [PDF]

, 2010
This article provides a new record for Typhlops amoipira from municipality of Bonito de Minas, state of MinasGerais. The record extends its distribution about 500 km southern from the type locality at Ibiraba, state of Bahia.
Dayrell, J. S., Fernandes, V.D., Lima, L. H. R., Moura, M. R., Santana, D. J.   +4 more
core  

The milliped genus Euryurus Koch, 1847 (Polydesmida: Euryuridae) west of the Mississippi River; occurrence of E. leachii (Gray, 1832) on Crowley’s Ridge, Arkansas [PDF]

, 2012
The milliped genus Euryurus Koch, 1847, and the species, E. leachii (Gray, 1832) (Polydesmida: Euryuridae), are recorded from three sites on the northern part of Crowley’s Ridge (Cross, Lee, and Poinsett counties), Arkansas, where the only prior familial
McAllistor, Chris T., Robinson, Henry W., Shelley, Rowland M.   +2 more
core   +1 more source

The Role of Gene Flow in the Diversification of the Monkey Treefrog Complex Across the South American Dry Diagonal

Zoologica Scripta, EarlyView.
ABSTRACT Understanding Neotropical megadiversity remains challenging due to fundamental taxonomic issues, including identifying and describing cryptic species and their distribution, and the limited knowledge of key factors driving biological diversification. Such challenges are especially prominent in diverse clades with high levels of cryptic species,
Felipe Camurugi, Vinícius A. São Pedro, Felipe Magalhães, Marcelo Gehara, Eliana F. Oliveira, Gabriel C. Costa, Frank T. Burbrink, Edward A. Myers, Guarino R. Colli, Miguel T. Rodrigues, Adrian A. Garda   +10 more
wiley   +1 more source

Ictiofauna and fishing in the surroundines of Penedo, Alagoas [PDF]

Biotemas, 2011
Twenty-eight months of data collection revealed the profile of fishing production in the region of lower São Francisco. Catches consist of up to approximately 22 species, of which five are the most common: Prochilodus argenteus, Leporinus spp ...
Emerson Carlos Soares, Arthur Murilo da Silva Sousa Bruno, Jonatha Melo Lemos, Robson Batista dos Santos   +3 more
doaj  

Morphological development of Anchoviella vaillanti (Steindachner, 1908) (Clupeiformes: Engraulidae) larvae and early juveniles

Neotropical Ichthyology
The considerable similarity in the early life stages of different fish species makes egg and larvae identification in fishery biology and ichthyoplankton surveys a difficult task.
Anailza Cristina G. da Silva, William Severi, Maviael F. de Castro   +2 more
doaj   +1 more source

Interbasin Water Transfers and Water Scarcity in a Changing World: A Solution or a Pipedream? [PDF]

, 2009
The world is increasingly forced to face the challenge of how to ensure access to adequate water resources for expanding populations and economies, whilst maintaining healthy freshwater ecosystems and the vital services they provide.
Jamie Pittock, Jian-hua Meng, Martin Geiger   +2 more
core