Artificial reproduction and reproductive parameters of the internally inseminated driftwood catfish Trachelyopterus galeatus (Siluriformes: Auchenipteridae)

Santos, Hélio Batista dos; Arantes, Fábio Pereira; Sampaio, Édson Vieira; Sato, Yoshimi

doi:10.1007/s10228-012-0324-9

Cited by 13 publications

(17 citation statements)

References 16 publications

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“…In T. piresi, gonadal activity peaked mainly in the dry season, which is distinct from the data available for other auchenipterid species (Araujo et al, 1999;Silva and Viana, 2003;Freitas et al, 2011;Maia et al, 2013;Santos et al, 2013). A reproductive peak in the dry season may be related to a strategy for the selection of spawning sites.…”

Section: Discussionmentioning

confidence: 56%

“…In A. nuchalis, females matured at larger sizes than males, a pattern found in other auchenpterids (Freitas et al, 2011;Santos et al, 2013) as well as many other tropical fishes (Barbieri et al, 2004;Nunes et al, 2004;Gomiero et al, 2007;Rodrigues-Filho et al, 2011;Prudente et al, 2015). In this case, size differences between males and females at first maturity may be related to reproductive competition, with males investing in early maturation in order to be ready to reproduce as soon as possible, ensuring the perpetuation of their genes.…”

Section: Discussionmentioning

confidence: 68%

“…Some recent studies have focused on reproductive parameters in a small number of auchenipterid species (Freitas et al, 2011;Maia et al, 2013;Santos et al, 2013). The present study provides the first published data on the biology of Tocantinsia piresi.…”

Section: Discussionmentioning

confidence: 76%

“…Freitas et al (2011) observed asynchronous GSI peaks in Auchenipterichthys longimanus (Günther, 1864), which may be related to the insemination strategy, with a temporal gap between copulation and spawning because fertilisation takes place only when the female deposits the eggs, without male participation, using stored sperm (Burgess, 1989;Azevedo et al, 2000;Melo et al, 2011;Santos et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

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Influence of the flood pulse on the reproduction of Tocantinsia piresi (Miranda Ribeiro) and Auchenipterus nuchalis (Spix & Agassiz) (Auchenipteridae) of the middle Xingu River, Brazil

et al. 2015

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This study investigates the influence of the flood pulse on the reproductive biology of the auchenipterids Tocantisia piresi (Miranda Ribeiro, 1920) and Auchenipterus nuchalis (Spix & Agassiz, 1829) from the middle Xingu River in the Brazilian state of Pará. The specimens were collected every three months between April, 2012, and January, 2014, covering four distinct periods (flood, ebb, dry, and filling). The sex ratio, size at first maturity, gonadosomatic index, and condition factor were analysed in the two species, and evaluated in the context of the different hydrological periods. A total of 897 specimens of T. piresi were collected, of which 467 were female, and 430 males, and 383 A. nuchalis (286 females and 97 males). In T. piresi, the sex ratio was biased only in the filling and ebb periods, whereas in A. nuchalis, it departed significantly from the expected ratio of 1:1 in all periods, with a predominance of females. The female T. piresi mature at a smaller size than the males, with the opposite of the pattern being recorded in A. nuchalis. In T. piresi, the breeding peak was observed during the low water periods, whereas in A. nuchalis, the peak was recorded in the flood periods. Male and female T. piresi presented similar positively allometric growth rates, whereas in A. nuchalis, growth was negatively allometric, but rates were different between genders. A higher condition factor was recorded in the females of both species during the ebb period. Overall, the results of this study reveals distinct flood pulse effects on the reproductive parameters of the two auchenipterid species studied; for A. nuchalis the spawning seems to happen at the flood period and for T. piresi at the dry season of the middle Xingu River.Keywords: Amazon, Auchenipteridae, flood pulse, fish reproduction. Influência do pulso de inundação na reprodução de

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Section: Discussionmentioning

confidence: 56%

Section: Discussionmentioning

confidence: 68%

Section: Discussionmentioning

confidence: 76%

Section: Discussionmentioning

confidence: 99%

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Influence of the flood pulse on the reproduction of Tocantinsia piresi (Miranda Ribeiro) and Auchenipterus nuchalis (Spix & Agassiz) (Auchenipteridae) of the middle Xingu River, Brazil

et al. 2015

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“…Regarding the Family Auchenipteridae (Siluriformes), available data on ecology and biology addresses only a few species (Moresco & Bemvenuti, 2005;Santos, 2005;Freitas et al 2011;Maia et al, 2013;Santos et al, 2013). The Auchenipteridae species are endemic to the Neotropics and belong to two subfamilies: Centromochlinae and Auchenipterinae (Birindelli, 2014).…”

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confidence: 99%

Distribution, feeding and ecomorphology of four species of Auchenipteridae (Teleostei: Siluriformes) in Eastern Amazonia, Brazil

Freitas

Montag

Barthem

2017

Iheringia, Sér. Zool.

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ABSTRACT. Fish exhibit morphological, physiological and behavioral specializations which enable them to display diff erent ways to explore the environments and resources. Thus, the aim of this study was to verify how four Auchenipteridae species diff er in the distribution, feeding habits and morphological traits: Auchenipterichthys longimanus (Günther, 1864), Auchenipterus nuchalis (Spix & Agassiz, 1829), Tatia intermedia (Steindachner, 1877) and Trachelyopterus galeatus (Linnaeus, 1766). This study was conducted in rivers and bays of the Anapú Basin, Pará State (Brazil), where these species are abundant. Specimens were collected using gillnets, and after caught the stomachs were removed for the contents analyzes. Eighteen morphometric measurements from ten adult specimens of each species were taken, combined into fi fteen ecomorphological attributes. The species distribution showed that A. longimanus was restricted to rivers, while the others were exclusively caught in the bays. All four species had their diet composed of allochthonous insects, but A. longimanus also exhibited a great frugivorous habit. The most important ecomorphological attributes were relative to the consumption of larger food items (for A. longimanus and T. galeatus) and to the longer swimming capacity (for A. longimanus and T. intermedia). These morphological diff erences and the trophic diversity presented in this study highlighted some important information about how ecomorphological similar species behave and share resources, which may play a signifi cant role on the coexistence of these species in the Anapú Basin.KEYWORDS. Fish, morphology, diet, adaptation.RESUMO. Distribuição, alimentação e ecomorfologia de quarto espécies de Auchenipteridae (Teleostei: Siluriformes) da Amazônia Oriental, Brasil. Peixes apresentam especializações morfológicas, fi siológicas e comportamentais que permite a exploração do ambiente e dos recursos de diferentes maneiras. Sendo assim, o objetivo deste trabalho foi verifi car como quatro espécies de peixes da Família Auchenipteridae diferem quanto à distribuição, alimentação e traços morfológicos: Auchenipterichthys longimanus (Günther, 1864), Auchenipterus nuchalis (Spix & Agassiz, 1829), Tatia intermedia (Steindachner, 1877) e Trachelyopterus galeatus (Linnaeus, 1766). Esse estudo foi realizado nos rios e baías da Bacia do Rio Anapú, Estado do Pará (Brasil), onde essas espécies são abundantes. Os espécimes foram coletados com rede de espera, e após a captura os estômagos foram removidos para a análise dos conteúdos. Dezoito medidas morfométricas foram aferidas de dez indivíduos adultos de cada espécie, posteriormente combinadas em quinze atributos ecomorfológicos. A distribuição das espécies evidenciou que A. longimanus foi restrita aos ambientes de rios, enquanto as demais foram exclusivamente capturadas nas baías. Todas as quatro espécies tiveram a dieta composta por insetos alóctones, mas A. longimanus também apresentou hábito frugívoro. Os mais importantes atributos ecomorfológicos foram relativos ...

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Ovulation and initial rearing of Steindachneridion parahybae (Siluriformes: Pimelodidae) larvae from different accumulated thermal units

Okawara¹,

Sanches

Caneppele

et al. 2015

Ichthyol Res

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Steindachneridion parahybae is an endemic catfish to the Paraiba do Sul river basin classified as critically endangered. Little is known about the reproductive management of this species in captivity, adopting for this practice empirical measures. The objectives were to:(1) determine suitable Accumulated Thermal Units (ATUs) at the moment of ovulation in January 2011 and 2012; (2) follow initial larvae rearing in 180, 240 and 300 degreehours. Nine selected females were divided into three experimental groups of three specimens each (replications), distributed at pre-established times: 140, 160, 180, 200, 220, 240, 260, 280 and 300 degree-hours. The females were induced with two doses of 0.5 and 5.0 mg kg -1 of dry carp pituitary, respectively, at an interval of 12 h. The extruded oocytes were kept at average water temperature of 22.35 ± 0.53°C (2011) and 21.88 ± 0.15°C (2012). Fertilization and hatching rates were: 84.22 and 71.33 % at 174.2 ATUs in 2011, and 55.58 % and 36.13 % at 251.0 ATUs in 2012. In January 2012, 900 larvae were distributed in three replications (triplicate) consisting of 100 larvae each and were fed: 120 (second day), 300 (thirdfourth day), 600 (fifth-eighth day), and 1,200 Artemia salina nauplii per larva (ninth-15th day), six times a day. The larvae exhibited mean weight of 523.67 ± 54.42, 496.67 ± 61.98 and 475.00 ± 22.83 mg, length of 17.75 ± 0.57, 17.58 ± 0.51 and 17.45 ± 0.25 cm and survival of 63.95 ± 24.50, 71.71 ± 6.61 and 79.65 ± 0.82 %, when hatched in 180, 240 and 300 ATUs, respectively. The larvae body parameters did not show significant differences at these degree-hours.

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Artificial reproduction and reproductive parameters of the internally inseminated driftwood catfish Trachelyopterus galeatus (Siluriformes: Auchenipteridae)

Cited by 13 publications

References 16 publications

Influence of the flood pulse on the reproduction of Tocantinsia piresi (Miranda Ribeiro) and Auchenipterus nuchalis (Spix & Agassiz) (Auchenipteridae) of the middle Xingu River, Brazil

Influence of the flood pulse on the reproduction of Tocantinsia piresi (Miranda Ribeiro) and Auchenipterus nuchalis (Spix & Agassiz) (Auchenipteridae) of the middle Xingu River, Brazil

Distribution, feeding and ecomorphology of four species of Auchenipteridae (Teleostei: Siluriformes) in Eastern Amazonia, Brazil

Ovulation and initial rearing of Steindachneridion parahybae (Siluriformes: Pimelodidae) larvae from different accumulated thermal units

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