Temperature-induced changes in reproductive variables in the teleost fish Lophiosilurus alexandri

Gonçalves, Lucas Pedro; Mattioli, Cristiano Campos; Martins, Edenilce de Fátima Ferreira; Silva, Walisson de Souza e; Ciolete, Tarso Natividade; Vasconcellos, Angélica da Silva; Luz, Ronald Kennedy

doi:10.1016/j.jtherbio.2019.01.008

Cited by 10 publications

(3 citation statements)

References 45 publications

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“…Billman et al (2008) showed the importance of using a substrate similar to the natural habitat to obtain a greater number of eggs per spawn in the reproduction of northern leatherside chub Lepidomeda copei . This finding was also registered for pacamã Lophiosilurus alexandri , for which breeding in captivity was successfully achieved when using sand as a substrate in the breeding tanks, which is similar to the natural environment of the species (Costa et al, 2015; Gonçalves Junior et al, 2019). A test of water hyacinth as a natural substrate, compared with acrylic wool (artificial substrate), for the reproduction of lambari Astyanax bimaculatus found higher survival of post‐larvae with the natural substrate (water hyacinth) (Rezende et al, 2005).…”

Section: Discussionsupporting

confidence: 59%

Reproductive behaviour and the effects of substrate on the reproduction of annual killifish ( Hypsolebias flagellatus )

Julio

Gonçalves

Santos

et al. 2021

Aquaculture Research

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Killifish is the name given to a group of fish, usually measuring between 3 and 7 cm, that belong to the order Cyprinodontiformes and which present a great diversity of colours and shapes, a fact that has aroused interest in the ornamental sector. Currently, there are fish houses around the world that specialize exclusively in the breeding and reproduction of these species. In addition, killifish have been of scientific interest for several reasons, including their diversity and particular biological characteristics (Costa, 2003).According to studies by Instituto Chico Mendes de Conservação da Biodiversidade (ICMBio, 2013), more than 320 species of killifish have been catalogued in South America alone between Mexico and Argentina. However, some of these species have been suffering from anthropic actions, such as disordered urban expansion, implementation of enterprises and agrosilvopastoral activities. Indeed, according to normative instruction No. 5 of the Ministério do Meio Ambiente, 21 May 2004, 52 species of rivulids are already threatened with extinction in Brazil, which has led authorities to put together an action plan to preserve killifish species.

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Section: Discussionsupporting

confidence: 59%

Reproductive behaviour and the effects of substrate on the reproduction of annual killifish ( Hypsolebias flagellatus )

Julio

Gonçalves

Santos

et al. 2021

Aquaculture Research

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“…Egg masses are collected and incubated in a box (40–150 L of functional volume) with aeration and an internal biological filter. The eggs are generally maintained in a 25‐cm diameter sieve (0.5 mm mesh) fixed to floats, and hatching occurs between 24 and 48 h at 27–28°C 174,175 . Intensive culture of L. alexandri produces larvae during several months of the year, as spawning naturally occurs during 5–6 months.…”

Section: Rearing Practices For Early Life Stagesmentioning

confidence: 99%

Development, nutrition, and rearing practices of relevant catfish species (Siluriformes) at early stages

Gisbert

Luz

Fernández

et al. 2021

Reviews in Aquaculture

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Catfish (Siluriformes) are important species for aquaculture worldwide, with an annual production in 2018 of ca. 6 million t. This review focuses on reassessing larval development, first feeding, and early rearing practices of the most important farmed catfish species, along with some candidate species for aquaculture diversification: Pangasianodon hypophthalmus (Pangasiidae), Clarias gariepinus (Clariidae), Ictalurus punctatus (Ictaluridae), Pseudoplatystoma spp. (Pimelodidae), Heteropneustes fossilis (Heteropneustidae), Rhamdia quelen (Heptapteridae), Ompok bimaculatus (Siluridae), and Lophiosilurus alexandri (Pseudopimelodidade). These species are initially reared indoors from one day to two weeks and are then transferred to fertilised outdoor ponds where they either feed on natural zooplankton or compound feeds. With the exception of C. gariepinus, I. punctatus, R. quelen and P. hypophthalmus, consistent and reliable fry production is a bottleneck that limits the expansion of farming of other species, such as Pseudoplatystoma spp., H. fossilis, O. bimaculatus, and L. alexandri. Rearing systems (extensive, semi‐extensive, intensive) and feeding protocols vary with species and geographical regions. Cannibalism and size heterogeneity are common, and these features create problems for larval and fry rearing of catfish species. Information about their nutritional requirements is required for the formulation of compound feeds that can guarantee high survival and good growth of catfish fries. However, such knowledge for most species is scarce, although some data are available for I. punctatus. Further genomic resources might allow fine‐tuning rearing success. This review describes some successes in this field, and also highlights gaps in knowledge to guide future research that can promote the development of catfish aquaculture.

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“…Lophiosilurus alexandri is a Neotropical catfish species with great potential for aquaculture (Kitagawa et al, 2015; Ribeiro et al, 2019) due to its favourable production characteristics, such as ease of artificial propagation (Costa et al, 2015; Luz & Santos, 2008), acceptance of artificial diets (Salaro et al, 2015) and quality of meat without intramuscular bones (Gonçalves Junior et al, 2019; Mattioli et al, 2017). Therefore, the aim of this study was to evaluate the OEO ( Origanum vulgare ) dietary supplementation for the catfish L .…”

Section: Introductionmentioning

confidence: 99%

Oregano essential oil ( Origanum vulgare ) dietary supplementation improved growth performance, body protein retention and muscle hyperplasia of the Neotropical catfish Lophiosilurus alexandri

et al. 2021

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The use of essential oils (EO's) as feed additive has been explored as tool to improve fish growth and health. The aim of this study was to evaluate the oregano essential oil (OEO) (Origanum vulgare) dietary supplementation for the catfish Lophiosilurus alexandri. Four diets supplemented with different OEO levels (0.0, 1.0, 2.0 and 4.0 g kg−1) were evaluated in a feed trial conducted with fish of 15.7 ± 1.8 g and 9.5 ± 0.45 cm for 13 weeks. Were evaluated growth performance, biochemical parameters, intestinal histomorphometry, whole‐body composition and muscle growth. Polynomial analysis showed that weight gain, length gain and specific growth rate were improved in fish fed with OEO supplemented diets, being 2.37, 2.56 and 2.33 g kg−1 the respective levels that maximize these variables. Plasma glucose, cholesterol, triglycerides, LDL and HDL increased with OEO levels between 1.80–2.47 g kg−1. Intestinal histomorphometry was not affected by OEO. Body protein content and hyperplasic muscle fibres were maximized with 2.10 and 2.25 g kg−1 OEO, respectively. Body moisture, total lipids, ash and hypertrophic muscle fibres were not affected by OEO. In conclusion, dietary supplementation with 2.10–2.56 g kg−1 OEO improves growth performance, body protein retention and muscle growth of L. alexandri.

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Temperature-induced changes in reproductive variables in the teleost fish Lophiosilurus alexandri

Cited by 10 publications

References 45 publications

Reproductive behaviour and the effects of substrate on the reproduction of annual killifish ( Hypsolebias flagellatus )

Reproductive behaviour and the effects of substrate on the reproduction of annual killifish ( Hypsolebias flagellatus )

Development, nutrition, and rearing practices of relevant catfish species (Siluriformes) at early stages

Oregano essential oil ( Origanum vulgare ) dietary supplementation improved growth performance, body protein retention and muscle hyperplasia of the Neotropical catfish Lophiosilurus alexandri

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