Weight-length relationship of 63 demersal fishes on the shallow coast of Paraná, Brazil

Passos, Ana Carolina dos; Schwarz, Roberto; Cartagena, Beatriz Fernanda Chinhilla; Garcia, Alexandre Sachsida; Spach, Henry Louis

doi:10.1111/j.1439-0426.2012.01973.x

Cited by 13 publications

(12 citation statements)

References 4 publications

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“…Nonetheless, we have to take in account the great number of individuals who could not be sexed due to limitations of macroscopic analysis (Klibansky and Scharf 2015), thus, the information herein should be treated with caution. With respect to the size structure of the studied population, the length range recorded in our study for C. nobilis (2.8 to 35.4 cm) differed from the one reported for Pombo et al (2014) in the south-eastern Brazil (4.9 to 18 cm) and for Passos et al (2012) in the southern Brazil (4.6 to 15.2 cm), with a new maximum total length of 35.4 recorded for the species. Differences in the size structure of C. nobilis between different locations may result from a variety of factors, such as, latitudinal variation, environmental conditions, and food availability (Jeppesen et al 2010, de Queiroz et al 2018, but especially from the applied sampling methods (Le Cren 1947, Beamesderfer andRieman 1988).…”

Section: Discussioncontrasting

confidence: 88%

“…Differences in the size structure of C. nobilis between different locations may result from a variety of factors, such as, latitudinal variation, environmental conditions, and food availability (Jeppesen et al 2010, de Queiroz et al 2018, but especially from the applied sampling methods (Le Cren 1947, Beamesderfer andRieman 1988). For instance, in both studies cited earlier (Passos et al 2012, Pombo et al 2014, specimens were sampled using only trawl nets, whereas in our study a variety of fishing gears were used (i.e., beach seine, gillnets, and trawls) for sampling individuals from a broader size range.…”

Section: Discussionmentioning

confidence: 99%

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Maturity, fecundity, and reproductive cycle of Conodon nobilis (Actinopterygii: Perciformes: Haemulidae) in tropical waters of the Atlantic Ocean

Silva¹,

Vieira²,

Teixeira³

et al. 2019

Acta Ichthyol. Piscat.

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Background. Reproductive aspects of fishes are very useful in the development of management and conservation strategies of stocks. The information available on this subject, however, is very limited for tropical species, especially for those with low economic value, such as the barred grunt, Conodon nobilis (Linnaeus, 1758). This species is a common member of the family Haemulidae off the coasts of Brazil and it plays an important ecological role in coastal areas acting as a biological vector of organic matter. Thus, this study was intended to provide data on the reproductive parameters of C. nobilis to fill the gap in the existing knowledge. Material and methods. Reproductive traits of C. nobilis were estimated from 410 fish collected in the coast of Alagoas, during fishery surveys carried out between December 2009 and June 2012. Length-weight relations (LWRs) for males and females were calculated from the observed length and weight by regression analysis. Data on the maturity status were used to estimate the size at first maturity for females, males, and pooled sexes. The fecundity was assessed by the volumetric method, and information on the reproductive period was retrieved from the gonadosomatic and the reproductive activity indices. Results. Sex ratio differed between sexes with mature females being more abundant than males. Although no evidence of sexual dimorphism was found in the length distribution, LWRs showed that males have a negative asymptotic growth and females present a positive asymptotic growth. The first sexual maturity for females, males, and pooled sexes was attained at 20.78, 20.57, and 20.72 cm of the total length (TL), respectively. Gonadosomatic and reproductive activity indices indicated that C. nobilis may be capable of spawning all year round with a more intense activity occurring between the rainy season in the region studied. The batch fecundity fluctuated between 1640 and 105 471 oocytes with a mean of 45 384 ± 16 737 eggs per female and was positively correlated to female size. Conclusions. Overall, C. nobilis showed an intermediate fecundity rate with reproductive activity throughout all year round. No evidence of sexual dimorphism in maturity and size distribution was found for the species. We hope that our findings may be helpful for fishery biologists in the design of effective management strategies for this ecologically important species.

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Section: Discussioncontrasting

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Maturity, fecundity, and reproductive cycle of Conodon nobilis (Actinopterygii: Perciformes: Haemulidae) in tropical waters of the Atlantic Ocean

Silva¹,

Vieira²,

Teixeira³

et al. 2019

Acta Ichthyol. Piscat.

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“…For M. furnieri values of b > 3 (grew more in weight than in length) corresponded to individuals collected in shallow and protected coastal areas (coastal lagoons, bays, river mouths) or juveniles stages (Castello 1986, Muto et al 2000, Joyeux et al 2009, Borthagaray et al 2011, Passos et al 2012, Segura et al 2012, Gurdek & Acuña 2014, except the b estimated by Franco et al (2014) (Table 3). Individuals that inhabit shallow coastal waters (Castello 1986, Borthagaray et al 2011) grow differently from those that inhabit greater depths (Haimovici & Umpierre 1996, Norbis & Verocai 2005, and use shallow coastal waters as nursery and feeding grounds (Mandali & Paes 1998Olsson et al 2013).…”

Section: Discussionmentioning

confidence: 85%

Length-weight relationships and condition factor of two Sciaenid species Micropogonias furnieri and Cynoscion guatucupa from the Rio de la Plata and Uruguayan ocean coast, Southwestern Atlantic

Galli

Norbis

2016

Rev. biol. mar. oceanogr.

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Resumen.-En este trabajo se analizaron las relaciones longitud-peso y el factor de condición de Micropogonias furnieri y Cynoscion guatucupa en diferentes épocas [verano; otoño; invierno, primavera y años (2006, 2007 y 2011)] a partir de muestreos mensuales de desembarques de la flota costera uruguaya que operó en el Río de la Plata y costa oceánica uruguaya. Fueron analizados 9. Significant seasonal and annual differences for condition factors were found for both species. This work provides the first reference regarding condition factor for both sciaenid species in the study area.

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“…Parameters a and b were estimated using a simple linear regression model over log‐transformed data. The presence of outliers for each species was verified graphically using log L –log W plots (Passos et al., ) and eliminated prior to calculations. Species were identified following Fisher et al.…”

Section: Methodsmentioning

confidence: 99%

Weight-length relationships for 38 fish species of Barra de Navidad coastal lagoon, Jalisco, Mexico

et al. 2013

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Weight-length relationships are reported for 38 species of teleost fish belonging to 20 families. Data were collected on a regular basis from February 2011 to January 2012 in the Barra de Navidad coastal lagoon, Jalisco, Mexico. Several different types of sampling gear were used to obtain a broad range of fish lengths. These are the first records in FishBase regarding weight-lengths for eight of the species. U.S.

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Weight-length relationship of 63 demersal fishes on the shallow coast of Paraná, Brazil

Cited by 13 publications

References 4 publications

Maturity, fecundity, and reproductive cycle of Conodon nobilis (Actinopterygii: Perciformes: Haemulidae) in tropical waters of the Atlantic Ocean

Maturity, fecundity, and reproductive cycle of Conodon nobilis (Actinopterygii: Perciformes: Haemulidae) in tropical waters of the Atlantic Ocean

Length-weight relationships and condition factor of two Sciaenid species Micropogonias furnieri and Cynoscion guatucupa from the Rio de la Plata and Uruguayan ocean coast, Southwestern Atlantic

Weight-length relationships for 38 fish species of Barra de Navidad coastal lagoon, Jalisco, Mexico

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