Results 171 to 180 of about 2,121 (199)

Lower Lethal Temperature for Arapaima Arapaima gigas: Potential Implications for Culture and Establishment in Florida

North American Journal of Aquaculture, 2015
Abstract Arapaima Arapaima gigas is a large, predatory, obligate air-breathing fish native to the Amazon River basin. Aquaculture producers have identified this species as a candidate for commercial culture in Florida. For this species, a preliminary risk assessment using the Fish Invasiveness Screening Kit indicated a medium to high ...
Larry L Lawson, Quenton M Tuckett, Katelyn M Lawson, Craig A Watson, Jeffrey E Hill   +4 more
openaire   +1 more source

Battle in the Amazon: Arapaima versus Piranha

Advanced Engineering Materials, 2012
AbstractThe scales of the Arapaimas, a large freshwater fish (up to 200 kg), are a superb example of a natural material that has evolved to provide protection against predators. The Arapaimas lives primarily in Amazon basin lakes that become infested with piranhas as the dry season advances and is covered with scales having up to 10 cm length.
M. A. Meyers, Y. S. Lin, E. A. Olevsky, P.‐Y. Chen   +3 more
openaire   +1 more source

Dawestrema cycloancistrium (Monogenea) from the head pores of arapaimas

Diseases of Aquatic Organisms, 2017
Arapaima gigas is one of the main cultured fish species in South America, and monogenean parasites of this species cause large economic losses to fish farmers. During surveys of the parasites of cultured arapaimas from Mexiana Island in the Amazon River Delta, Rio Branco, in northwestern Brazilian Amazonia, and Yurimaguas, Peru, the monogenean ...
Cláudia, Portes Santos, Maralina Torres, da Silva, Franti Ek, Moravec   +2 more
openaire   +2 more sources

Mechanical properties and the laminate structure of Arapaima gigas scales

Journal of the Mechanical Behavior of Biomedical Materials, 2011
The Arapaima gigas scales play an important role in protecting this large Amazon basin fish against predators such as the piranha. They have a laminate composite structure composed of an external mineralized layer and internal lamellae with thickness of 50-60 μm each and composed of collagen fibers with ~1 μm diameter.
Y S, Lin, C T, Wei, E A, Olevsky, Marc A, Meyers   +3 more
openaire   +2 more sources

Diversity in reproductive traits of arapaima (Arapaima spp., Müller, 1843) in Amazonian várzea floodplains: Conservation implications

Aquatic Conservation: Marine and Freshwater Ecosystems, 2019
Abstract Understanding the reproductive ecology of freshwater fishes is essential to minimize the losses in global freshwater biodiversity but is often limited in data‐poor regions, such as tropical floodplain ecosystems. Specifically, the study investigated whether size at first sexual maturation and nesting features for arapaima vary within and ...
Daniel J. Gurdak, Donald J. Stewart, Leandro Castello, Caroline C. Arantes   +3 more
openaire   +1 more source

Environmental influences on the distribution of arapaima in Amazon floodplains

Environmental Biology of Fishes, 2011
This study investigated the environmental factors influencing the distribution of the endangered arapaima (Arapaima spp.) in floodplains of the Amazon. The abundance of arapaima was found to be positively related to the area and depth of the water column, and hence volume of lakes.
Caroline C. Arantes, Leandro Castello, Mauricio Cetra, Ana Schilling   +3 more
openaire   +1 more source

Modeling population dynamics and conservation of arapaima in the Amazon

Reviews in Fish Biology and Fisheries, 2011
To promote understanding of fish population dynamics in tropical river-floodplains, we have synthesized existing information by developing a largely empirical population model for arapaima (Arapaima sp.). Arapaima are characterized by very large bodies, relatively late sexual maturity, small clutches, and large parental investment per offspring, and ...
L. Castello, D. J. Stewart, C. C. Arantes   +2 more
openaire   +1 more source

Effects of feeding strategies on growth, biochemical parameters and waste excretion of juvenile arapaima (Arapaima gigas) raised in recirculating aquaculture systems (RAS)

Aquaculture, 2019
Abstract An 8-week experiment (trial 1) was conducted to determine the optimal feeding frequency for juvenile Arapaima gigas. Seventy-two fish (500.0 ± 50.9 g, mean ± S.E) were randomly assigned to 12 tanks (500 l) in recirculating aquaculture systems (RAS).
Ricardo Uriel Pedrosa, Bruno Olivetti Mattos, Denise Soledade Peixoto Pereira, Marcelo Luís Rodrigues, Luís Gustavo Tavares Braga, Rodrigo Fortes-Silva   +5 more
openaire   +1 more source

Nutrient Content of the Invasive Arapaima gigas (Osteoglossiformes) in Bolivia

Aquatic Food Studies
The Paiche or Paichi (tentatively identified as Arapaima gigas) is an introduced species and one of the most important fisheries resources in Bolivia. Its meat has characteristics that have facilitated its commercialization in the main cities of the country. The objective of this work was to describe the nutritional quality of its meat sold in the city
Fernando M. Carvajal-Vallejos, Joachim Carolsfeld, Paul A. Van Damme, Selva V. Montellano   +3 more
openaire   +1 more source

Effects of surface morphology on tribological properties of Arapaima gigas scales

Friction, 2023
Pengpeng Bai
exaly