Dynamics and morphological limitation of intracohort cannibalism during the early life stages of captive barred sorubim Pseudoplatystoma reticulatum

Ribeiro, Flávio Furtado; Portella, Maria Célia

doi:10.1016/j.aquaculture.2021.736838

Cited by 3 publications

(1 citation statement)

References 45 publications

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“…In the types of predatory species that are actively preying on interactions occur gradually. The process of successful predation by predators is carried out repeatedly to complete the predation process, such as monitoring, catching, chasing, and consuming [3] [4]. In real ecosystem conditions, there are also some special cases for predation, which do not go through these steps.…”

Section: Introductionmentioning

confidence: 99%

Dynamics Twin Cannibalism of Two Predator and Two Prey System with Prey Defense

et al. 2022

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The study discusses the condition of the existence of all non-negative equilibrium points. There are 9 realistic equilibrium points from the constructed model. A local stable condition is obtained, a point of equilibrium that is completely biologically feasible. The analytical method on the mathematically formed model is limited, so numerical simulation is also given to explore the model. Numerical simulation is intervened in a model that will show growth in trajectories. The tendency of trajectories in prey one and predator one species is relatively the same because the interactions that occur are intensive. Likewise, prey two and predator two occur, and the interactions that occur cause population growth grow to fluctuate. Differences occur in both types of species, namely predator-prey one and predator-prey two. In the one interaction group, growth tends to be more volatile and moves slowly towards the point of stability in population growth. Incidence is inversely proportional to the interaction of species two which tend to be faster towards the stability point. In general, the results of numerical simulations show that there is a pattern formation in the predator-prey system that grows sustainabley.

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Section: Introductionmentioning

confidence: 99%

Dynamics Twin Cannibalism of Two Predator and Two Prey System with Prey Defense

et al. 2022

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Brycon amazonicus larviculture cannibalism is reduced in biofloc systems

Izel-Silva,

Dos Santos,

de Medeiros

et al. 2024

Aquaculture

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Larviculture of the Zungaro jahu (Ihering, 1898)- JAÚ, an endangered species under laboratory conditions

Pelli¹,

Lopes²,

Souza³

et al. 2022

IJH

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Zungaro jahu (Ihering, 1898) is a fish threatened with extinction, according to the Red List of the Ministry of the Environment and Legal Amazon. The objective of this work was to propose a cultivation protocol for the jaú. In the laboratory, 54 larvae were cultured for 15 days. Six specimens of jaú were removed, with a survival rate of 11%. The estimated cost of the experimental unit was USD 62.50. With improvement of the cultivation system, we could achieve survival of 9 fingerlings, one for each experimental unit, at an average cost of $ 1.78 per fingerling. The authors believe that the cultivation of the jaú can be overcome, and they raise some hypotheses to justify the extinction in natural environments. Possible causes include changes in natural systems such as climate change, fishing, predation of juveniles by introduced species, diseases introduced, changes in food chains, limitation or restriction of habitat area, physical changes in the environment (formation of lakes for electricity generation), eutrophication or pollution from different sources. The development of larviculture protocols for this species would be an important tool to prevent the extinction, enabling at least its cultivation in the laboratory.

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Dynamics and morphological limitation of intracohort cannibalism during the early life stages of captive barred sorubim Pseudoplatystoma reticulatum

Cited by 3 publications

References 45 publications

Dynamics Twin Cannibalism of Two Predator and Two Prey System with Prey Defense

Dynamics Twin Cannibalism of Two Predator and Two Prey System with Prey Defense

Brycon amazonicus larviculture cannibalism is reduced in biofloc systems

Larviculture of the Zungaro jahu (Ihering, 1898)- JAÚ, an endangered species under laboratory conditions

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