Results 151 to 160 of about 599 (183)

Importance and spatial patterns of invisible fisheries in Amazonian clear-water rivers as revealed by fisher knowledge and collaboration. [PDF]

Conserv Biol
Silvano RAM, Vieira KC, Pereyra PER, Tomazoni-Silva LH, Alves IA, Bezerra JG, Dutra MCF, Keppeler FW, Nunes CB, Cunha CV, Hallwass G.   +10 more
europepmc   +1 more source

Efeito do Represamento da Uhe Balbina na Estrutura Populacional e Reprodutiva de Plagioscion Squamosissimus (heckel, 1840) e Hemiodus Immaculatus Kner, 1858. [PDF]

, 2009
Nascimento Júnior, José Dácio
core  

A new genus and a new species of microcotylids (Polyopisthocotyla, Platyhelminthes), gill parasite of the pink dentex Dentex gibbosus (Teleostei, Sparidae) off Tunisia and notes on Polyopisthocotyla and Monopisthocotyla from Dentex spp. [PDF]

Int J Parasitol Parasites Wildl
Hamdi I, Benmansour B, Ahmed M, Gulsher M, Bouguerche C.   +4 more
europepmc   +1 more source

An evaluation of fish and invertebrate mercury concentrations in the Caribbean Region. [PDF]

Ecotoxicology
Christian LD, Burton MEH, Mohammed A, Nelson W, Shah TA, Bertide-Josiah L, Yurek HG, Evers DC.   +7 more
europepmc   +1 more source

Fishes (Actinopterygii) of the rapids and associated environments in the lower Vaupés River Basin: an undiscovered Colombian Amazon diversity. [PDF]

Zookeys
Urbano-Bonilla A, Garcia-Melo JE, Peña-Bermudez ME, Melo-Ortiz OE, Ordoñez OS, Correa SB, Carvalho TP, Maldonado-Ocampo JA.   +7 more
europepmc   +1 more source

Exceptional concentration of fish diversity in Yasuní National Park, Ecuador (Napo River Basin). [PDF]

Biodivers Data J
Escobar-Camacho D, Valdiviezo-Rivera J, Carrillo-Moreno C, Argüello P, Swing K.   +4 more
europepmc   +1 more source

Ultrastructure of spermiogenesis in Plagioscion squamosissimus (Teleostei, Perciformes, Sciaenidae)

Tissue and Cell, 1999
Spermiogenesis in Plagioscion squamosissimus occurs in cysts. It involves a gradual differentiation process of spermatids that is characterized mainly by chromatin compaction in the nucleus and formation of the flagellum, resulting in the spermatozoa, the smallest germ cells.
Gusmao, P., Foresti, F., Quagio-Grassiotto, I   +2 more
openaire   +4 more sources

Population parameters of 'corvina' (Plagioscion squamosissimus) in the Barra Bonita Reservoir, Brazil [PDF]

Naga, 1998
Estimates for the growth parameters (L sub( infinity ) and K) mortality coefficients (Z,M and F) and exploitation rate (E) for the sciaenid Plagioscion squamosissimus are presented. The following results were obtained: 1) for male: L sub( arrow right )=44.2 cm, K=0.30 yr super(1), Z=0.82 yr super(1), M=0.66 yr super(1), F=0.16 yr super(1), and E=0.20 ...
Braga, F.M.de S.
openaire   +3 more sources

Characterization of molecular biomarkers of mercury exposure to muscle tissue of Plagioscion squamosissimus and Colossoma macropomum from the Amazon region

Food Chemistry, 2019
Mercury has the ability to bind to a variety of biomolecules, which can compromise its structure and functionality and thus promote its toxic effects. The aim of this study is to identify possible mercury biomarkers in muscle samples of Plagioscion squamosissimus (carnivorous fish) and Colossoma macropomum (omnivorous fish), from the Amazon region. The
Bittarello, Alis Correia, Vieira, José Cavalcante Souza, Braga, Camila Pereira, de Paula Araújo, Wellington Luiz, da Cunha Bataglioli, Izabela, da Silva, Janaina Macedo, Buzalaf, Marília Afonso Rabelo, Fleuri, Luciana Francisco, de Magalhães Padilha, Pedro   +8 more
openaire   +4 more sources

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Landscape composition and inorganic contaminants in water and muscle tissue of Plagioscion squamosissimus in the Araguari River (Amazon, Brazil)

Environmental Research, 2022
Amazonian aquatic environments are seriously impacted by dam-building and deforestation, among other threats. Therefore, the present study aimed to examine water quality in the middle and lower course of the Araguari River with respect to the composition of vegetative cover and the concentration of As, Cd and Hg in order to determine risks to the ...
Marcia da Silva Costa, Lucilene Finoto Viana, Claudia Andrea Lima Cardoso, Eisla Delaine Gonar Silva Isacksson, Jadna Costa Silva, Alexandro Cezar Florentino   +5 more
openaire   +2 more sources