Results 71 to 80 of about 19,200 (226)
On traits matching and the modular organization of food web and occurrence networks
Journal of Animal Ecology, Volume 95, Issue 5, Page 837-850, May 2026.What mechanisms shape ecological networks? In Paraná River piscivores, species traits and abundance scaling promote modular structures. Our findings reveal how communities self‐organize and highlight the conditions needed to sustain them. Abstract Modularity and nestedness have been observed recurrently across different ecological networks, including ...
Dalmiro Borzone Mas +5 more
wiley +1 more source
Callichthyidae (Ostariophysi: Siluriformes) dissection protocol v1 [PDF]
, 2018 This protocol shows how to dissect callichthyid fishes without losing importante anatomical information about the relative position and shape of internal organs.
Karina Carvalho F. Ferreira +1 more
openaire +1 more source
Ciencia Amazónica (Iquitos), 2013 En el presente trabajo se describe sobre la diversidad en tres cuerpos de agua de la cuenca alta del río Itaya, concesión de conservación de la universidad científica del Perú, en una evaluación rápida en los meses de junio y julio del 2012.
Javier del Águila Chávez +3 more
doaj +3 more sources
Colección ictiológica del Museo de La Plata: la Familia Trichomycteridae [PDF]
, 2015 En este número de la Serie Técnica y Didáctica de ProBiota se comienza a difundir los materiales que se encuentran depositados en la Colección Ictiológica del Museo de La Plata, cuyos antecedentes se pueden ver en Miquelarena y Nadalin 2014. En este caso
Fernandez, Luis Alfredo +3 more
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Archaeometry, Volume 68, Issue S2, Page S88-S103, May 2026.ABSTRACT This study investigates the use of otolith shape analysis for species identification and size estimation in Ariopsis felis and Bagre marinus, based on 181 modern otoliths obtained from a scientific collection and recent sampling in the coastal regions of Campeche and Yucatán, as well as 39 archaeological otoliths corresponding to the Early ...
Ariana Solis‐Gómez +7 more
wiley +1 more source
Revista Científica, 2010 Los bagres paletón (Sorubim sp.), malarmo (Platysilurus malarmo) y doncella (Ageneiosus sp.) soportan una importante pesquería artesanal en el sur del Lago de Maracaibo, Venezuela, representando alrededor del 30% de las capturas ...
Ramón Eduardo Parra Urdaneta +1 more
doaj
Genetics and Molecular Biology, 2008 Two Siluriformes species endemic to the São Francisco River basin were characterized by conventional and differential cytogenetic analyses involving C-banding, Ag-nucleolar organizer region (NOR) and chromomycin A3 (CMA3) staining, and FISH (fluorescent ...
Marilza Barbosa de Almeida Marques +3 more
doaj +1 more source
The potentials for commercial production of fish feeds in Nigeria [PDF]
, 1987 Studies in fish feed technology revealed that there is a potential for big time investment into fish feed production and marketing in view of the growing awareness of fish farming in Nigeria.
Adekeye, A.O.
core
Biotropica, Volume 58, Issue 3, May 2026.This research approaches the interaction between frugivorous fish and the flooded forests in the central Amazon. We evaluated the fruit consumption by fish and the seed dispersal potential along the flood gradient. We tested the hypothesis that the role of fish as seed dispersers varies between low várzea (LV) and high várzea (HV) forests.
Gilvan Costa +6 more
wiley +1 more source
Cytogenetic Analyses of Pseudopimelodus mangurus (Teleostei: Siluriformes: Pseudopimelodidae)
CYTOLOGIA, 2004 The cytogenetic analyses showed that Pseudopimelodus mangurus has a diploid number of 2n=54 chromosomes (6M, 26SM, 12ST and 10A), single Ag-NORs on the short arm of a middle-sized ST pair, identified as pair 19, and a very small amount of C-band positive segments in two chromosome pairs. The Ag-NORs are C-band positive.
Martinez, Emanuel Ricardo Monteiro +2 more
openaire +4 more sources