Results 71 to 80 of about 47,996 (245)

Geometric Morphometrics Reveal Body Shape Variation in Freshwater Shrimps of the Genus Macrobrachium Lacking a Mandibular Palp (Formerly Pseudopalaemon Sollaud, 1911) (Decapoda: Palaemonidae)

Acta Zoologica, EarlyView.
ABSTRACT Shape variation in the cephalothorax of Macrobrachium species without mandibular palp using geometric morphometrics was used as a tool to support species differentiation and propose new diagnostic characters for taxonomic identification.
Thaís Arrais Mota, Ana Carla Soares da Silva, Lucas Jhones de Santana Neves, Carlos Eduardo Rocha Duarte Alencar, Fabrício Lopes Carvalho   +4 more
wiley   +1 more source

Parameter estimates for fishes of the upper Paraná river floodplain and Itaipu reservoir (Brazil) [PDF]

, 2005
Estimates of the growth (K), natural mortality (M), consumption/biomass (Q/B) rate and trophic level (TL) for 35 species in the upper Paraná river floodplain and the Itaipu reservoir (interconnected ecosystems) are presented.
Agostinho, A.A., Angelini, R.
core  

Distribution modelling for Neotropical freshwater stingrays Potamotrygon brachyura and Potamotrygon motoro (Myliobatiformes, Potamotrygonidae) in the Uruguay River basin

Journal of Fish Biology, EarlyView.
Abstract This study aimed to identify geographical distribution patterns of the giant short‐tailed river stingray Potamotrygon brachyura and the motoro stingray Potamotrygon motoro in the Uruguay River basin. Data on presence/absence of stingrays were based on fishers' knowledge accessed by interviews through expeditions in Brazil, Argentina and ...
Danilo Araujo Soares Pereira, Roberto E. Reis, Nelson F. Fontoura   +2 more
wiley   +1 more source

Feeding Biology of Pectoral Sandpiper Calidris Melanotos (Birds: Scolopacidae) In the Floodplain of the Paraná River, Argentina [PDF]

, 2010
This study focuses upon the nourishing biology of the Pectoral Sandpiper at the floodplain of the Paraná river during  spring and summer. Trophic spectrum, feeding selectivity and efficiency, extent of the trophic niche, circadian rhythm of feeding ...
Bagnarol, Mónica, Beltzer, Adolfo Hector, Ducommun, Maria de la Paz, Quiroga, Martin Anibal, Ronchi Virgolini, Ana Laura   +4 more
core  

A modeling of the carbon-nitrogen cycle transport at Igap\'o I Lake - Londrina, Paran\'a, Brazil

, 2010
This work is a contribution to better understand the effect that domestic sewage discharges may cause in a water body, specifically Igap\'o I Lake, in Londrina, Paran\'a, Brazil.
Cirilo, Eliandro Rodrigues, Natti, Paulo Laerte, Pardo, Suellen Ribeiro, Romeiro, Neyva Maria Lopes   +3 more
core   +2 more sources

Emplacement of inflated Pāhoehoe flows in the Naude’s Nek Pass, Lesotho remnant, Karoo continental flood basalt province: use of flow-lobe tumuli in understanding flood basalt emplacement [PDF]

, 2018
Physical volcanological features are presented for a 710-m-thick section, of the Naude’s Nek Pass, within the lower part of the Lesotho remnant of the Karoo Large Igneous Province.
A Saunders, AE Jay, Anne E. Jay, BE Lock, BL Waichel, CP Rajendran, F Goff, F Holzförster, F Jourdan, Frédéric Fluteau, GPL Walker, GPL Walker, GPL Walker, H Hachimi El, H Svensen, HB Mattsson, HC Sheth, JD Greenough, JE Beane, JS Marsh, JSV Zijl van, Julian S. Marsh, K Burke, KA Hon, KB Knight, KG Cox, KG Cox, LG Viereck, M McClintock, M McClintock, M Moulin, M Moulin, ME Hartley, MJ Rossi, MK Reichow, MRG Sayyed, NR Bondre, NR Bondre, P-SS Ross, PB Wignall, PB Wignall, R Ernst, RA Duncan, RA Duraiswami, RA Duraiswami, RA Duraiswami, RA Duraiswami, RMH Smith, S Self, S Self, SE Bryan, SR Passey, SS Deshmukh, SW Anderson, T Thordarson, VE Camp, Vincent Courtillot, W Rogan   +57 more
core   +5 more sources

Assessing the population structure of Plagioscion squamosissimus (Teleostei, Perciformes, Sciaenidae) from the São Francisco River, Bahia, Brazil, using body morphology and otolith shape signatures

Journal of Fish Biology, EarlyView.
Abstract The south American silver croaker, Plagioscion squamosissimus, holds significant importance for the artisanal fisheries in the sub‐middle and lower courses of the São Francisco River, located in northeastern Brazil. To investigate the population structure of this species along its longitudinal profile, a total of 150 individuals (50 fish per ...
F. L. Freitas, N. S. Pereira, P. B. Pinheiro, R. Schroeder, A. T. Correia   +4 more
wiley   +1 more source

Chemical Composition of the Eggs of the Freshwater Turtle Phrynops hilarii (Chelidae: Testudines) [PDF]

, 2019
At oviposition, amniote eggs contain all the nutrients required for complete neonate tissue development. For reptiles and birds, the egg yolk is the main embryonic energy source and is composed predominantly of proteins and lipids, while also providing ...
Bernardi, Cecilia Gabriela, Manzano, Adriana Silvina, Prieto, Yanina, Rozycki, Víctor Rodolfo   +3 more
core  

Linking rivers, mixing faunas: How artificial connectivity between the Middle and Upper Paraná River basins shapes fish diversity in a tributary of the Itaipu Reservoir, Brazil

Journal of Fish Biology, EarlyView.
Abstract This work aimed to investigate the distribution and occurrence of fish species along the São Francisco Falso Braço Norte (SFFBN) River basin, a tributary of the Middle Paraná River basin now artificially connected to the Upper Paraná ecoregion, to evaluate how such connectivity may affect the biogeographic distribution and regional composition
Lucas E. P. Kampfert, João C. Maicrovicz, Daniel R. Blanco, Denise Lange, Carla S. Pavanelli, Heleno Brandão   +5 more
wiley   +1 more source

Prospecção do molusco invasor Limnoperna fortunei (Dunker, 1857) nos principais corpos hídricos do estado do Paraná, Brasil

Papéis Avulsos de Zoologia, 2010
Foram realizadas coletas nos principais corpos hídricos do Paraná objetivando a prospecção de larvas do mexilhão dourado, Limnoperna fortunei (Dunker, 1857).
Debora Pestana, Antonio Ostrensky, Marcel Kruchelski Tschá, Walter A. Boeger   +3 more
doaj   +1 more source