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Vitellogenin Ab structure of the amazonian Arapaima gigas
General and Comparative Endocrinology, 2023The vitellogenin is composed by polypeptides that are precursors of egg yolk proteins that provides embryo and larvae nutrition. The mRNA encoding for vitellogenin Ab (Vtg-Ab; 4,536 bp long and 1,512 amino acids) were obtained by RNA-Seq library sequencing of pirarucu gonads.
Carlos Henrique Dos Anjos Dos, Santos +2 more
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2020
Arapaima gigas (Schinz) (Fig. 4, SA) References. fishing_vimal, 2017. Distribution. Marina Reservoir (fishing_vimal, 2017). Remarks. Sightings of Arapaima gigas (Arapaimidae) have been listed in forums (e.g., http://forum.fishingkaki.com/ discussion/229269/arapaima-in-singapore); however, these were never substantiated with photographs or
Hui, Tan Heok +6 more
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Arapaima gigas (Schinz) (Fig. 4, SA) References. fishing_vimal, 2017. Distribution. Marina Reservoir (fishing_vimal, 2017). Remarks. Sightings of Arapaima gigas (Arapaimidae) have been listed in forums (e.g., http://forum.fishingkaki.com/ discussion/229269/arapaima-in-singapore); however, these were never substantiated with photographs or
Hui, Tan Heok +6 more
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Stocking density for arapaima larviculture
Aquaculture, 2020Abstract Inadequate stock density in fish larviculture can cause a dominant behavior that harms feeding and results in stress, lots of heterogeneous fish and low productive rates. This study aimed to evaluate the effect of stocking densities on growth performance, cortisol levels and arapaima (Arapaima gigas) larvae production cost.
Santana, Thiago Macedo +5 more
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Fisheries Research, 2018
Abstract Recreational fisheries are increasingly important sectors of tourism-based economies. In the last decade, new recreational fisheries have emerged that target species of varying conservation status including vulnerable, endangered, and unassessed species.
Robert J. Lennox +3 more
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Abstract Recreational fisheries are increasingly important sectors of tourism-based economies. In the last decade, new recreational fisheries have emerged that target species of varying conservation status including vulnerable, endangered, and unassessed species.
Robert J. Lennox +3 more
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2003
Published as part of William G. R. Crampton, Nathan R. Lovejoy & James S. Albert, 2003, Gymnotus ucamara: a new species of Neotropical electric fish from the Peruvian Amazon (Ostariophysi: Gymnotidae), with notes on ecology and electric organ discharges., pp.
William G. R. Crampton +2 more
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Published as part of William G. R. Crampton, Nathan R. Lovejoy & James S. Albert, 2003, Gymnotus ucamara: a new species of Neotropical electric fish from the Peruvian Amazon (Ostariophysi: Gymnotidae), with notes on ecology and electric organ discharges., pp.
William G. R. Crampton +2 more
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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 +4 more
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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 +4 more
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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 +3 more
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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 +3 more
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Battle in the Amazon: Arapaima versus Piranha
Advanced Engineering Materials, 2012AbstractThe 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 +3 more
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Arapaima cf. gigas f. cf. Distribution Amazonia. Notes Barriga (1994), WCS (2007), Jácome-Negrete (2013).
Escobar-Camacho, Daniel +4 more
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Escobar-Camacho, Daniel +4 more
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Mechanical properties and the laminate structure of Arapaima gigas scales
Journal of the Mechanical Behavior of Biomedical Materials, 2011The 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 +3 more
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