Length-weight relationships and condition factor of the eaglebeak pacu Ossubtus xinguense Jégu, 1992 (Characiformes, Serrasalmidae), an endangered species from Rio Xingu rapids, northern Brazil

Andrade, Marcelo C.; Jesus, Allan Jamesson Silva de; Giarrizzo, Tommaso

doi:10.1590/1519-6984.01214bm

Cited by 4 publications

(2 citation statements)

References 15 publications

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“…Froese () proposed that the “ b ” value for an ideal fish may range between 2.5 to 4.0. This range pattern has been considered for several authors around the World (Andrade, Jesus, & Giarrizzo, ; Azevedo‐Santos et al, ; Lima et al. , ).…”

Section: Discussionmentioning

confidence: 87%

Length-weight relationship of two mudskippers (Gobiidae: Oxudercinae)Boleophthalmus boddarti(Pallas, 1770) andPeriophthalmus novemradiatus(Hamilton, 1822) from Vellar estuary, Southeast India

Mahadevan

Ravi

2018

J Appl Ichthyol

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The length-weight relationships (LWR) of males and females of Periophthalmus novemradiatus and Boleophthalmus boddarti were estimated in the present study.Specimens were collected during March-2014 and February-2015 using scoop net, cast net and hand picking from Vellar estuary, Southeast coast of India. The results of this study will contribute to the knowledge of mudskippers biology and will serve as valuable baseline information. | 1359MAHADEVAN AND RAVI the month of July to September. The growth coefficient "b" values of the fishes were found between 2.74 and 2.89 and the r 2 values ranged from 0.964 to 0.986, with high degree of positive correlation between total body length and weight (Table 2). Froese (2006) proposed that the "b" value for an ideal fish may range between 2.5 to 4.0. This range pattern has been considered for several authors around the World (Andrade, Jesus, & Giarrizzo, 2015;Azevedo-Santos et al., 2018;Lima et al. , 2017). In the present study the "b" values of all five fishes (both males and females) ranged between 2.5 and 4.0. Khaironizam and Rashid (2002) estimated the LWR of eleven species of mudskippers from Selangor, Malaysia and he also reported the b values range between 2.56 and 3.50. The calculated b values for males and females varied comparatively which might be due to gonad maturity, habitat, metabolic rates, growth pattern, sex and stomach fullness (Wootton, 1990). | D ISCUSS I ON

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Section: Discussionmentioning

confidence: 87%

Length-weight relationship of two mudskippers (Gobiidae: Oxudercinae)Boleophthalmus boddarti(Pallas, 1770) andPeriophthalmus novemradiatus(Hamilton, 1822) from Vellar estuary, Southeast India

Mahadevan

Ravi

2018

J Appl Ichthyol

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“…[ 42 ]: 189 (commercial fishes from Xingu-Tapajós ecoregion).–Andrade et al . [ 43 ]: 102-104(biological parameters).–Giarrizzo et al . [ 44 ]: 6–9 (biological parameters).…”

Section: Resultsmentioning

confidence: 99%

Redescription and Geographical Distribution of the Endangered Fish Ossubtus xinguense Jégu 1992 (Characiformes, Serrasalmidae) with Comments on Conservation of the Rheophilic Fauna of the Xingu River

et al. 2016

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The monotypic species Ossubtus xinguense was originally described based on scarce material putatively divided into juveniles and adults. Ossubtus xinguense has a restricted distribution and was previously known only from a few rapids downstream of the city of Altamira, in the Volta Grande stretch of the Middle Xingu River. Until recently, the species was rare in museums because its habitat (large rapids) is difficult to sample. Large-scale collecting efforts targeting rapids throughout the Xingu River basin have yielded an abundance of new material. Based on an analysis of the type series and freshly preserved specimens, we redescribe O. xinguense and provide detailed osteological descriptions along with comments about its relationships within Serrasalmidae. Furthermore, we expand the geographical distribution of the species and discuss its conservation status.

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Trophic niche segregation among herbivorous serrasalmids from rapids of the lower Xingu River, Brazilian Amazon

et al. 2018

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Length-weight relationships and condition factor of the eaglebeak pacu Ossubtus xinguense Jégu, 1992 (Characiformes, Serrasalmidae), an endangered species from Rio Xingu rapids, northern Brazil

Cited by 4 publications

References 15 publications

Length-weight relationship of two mudskippers (Gobiidae: Oxudercinae)Boleophthalmus boddarti(Pallas, 1770) andPeriophthalmus novemradiatus(Hamilton, 1822) from Vellar estuary, Southeast India

Length-weight relationship of two mudskippers (Gobiidae: Oxudercinae)Boleophthalmus boddarti(Pallas, 1770) andPeriophthalmus novemradiatus(Hamilton, 1822) from Vellar estuary, Southeast India

Redescription and Geographical Distribution of the Endangered Fish Ossubtus xinguense Jégu 1992 (Characiformes, Serrasalmidae) with Comments on Conservation of the Rheophilic Fauna of the Xingu River

Trophic niche segregation among herbivorous serrasalmids from rapids of the lower Xingu River, Brazilian Amazon

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