Idade, crescimento e aspectos reprodutivos de Macrodon ancylodon (Bloch &amp; Schneider, 1801) na Costa Norte do Brasil

Ikêda, Roberta Gonçalves Pereira

doi:10.11606/d.21.2003.tde-26062008-150356

Cited by 6 publications

(14 citation statements)

References 12 publications

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“…Similar results were obtained by Camargo-Zorro (1999) in specimens from the Caeté River (21.5 cm), by Santos (2007) in São Marcos Bay (21.05 cm), and by Santana (1998) in fish (18.6 cm) from the coastal region of Salinas (Pará) on the northern coast of Brazil. Our estimates of L50 were considerably lower than those estimates for individuals of the same species from the Pará coastal area (25.08 cm) (Ikeda 2003). A comparison of these results with those of two populations from the south coast of Brazil (Vazzoler 1963, Yamaguti 1967) would seem to indicate that individuals from habitats at lower latitudes reach sexual maturity at lower average lengths.…”

Section: Resultscontrasting

confidence: 73%

“…Data from the weight-length relationship for M. ancylodon analyzed in this study showed negative allometry for females and positive allometry for males, a totally different result to that reported by Camargo-Zorro (1999) from the Caeté River estuary. It was also confirmed that weightlength relationships were allometrically positive for specimens collected on the Pará coast (Ikeda 2003) and from São Marcos Bay (Santos 2007). In accordance with Ricker (1975), the cause of these variations may be differences among populations of the same species or the same population in different years, and is presumably associated with their nutritional conditions.…”

Section: Discussionmentioning

confidence: 61%

“…Previously it was reported that this species is a batch spawner in Brazil (Vazzoler 1963, Isaac-Nahum & Vazzoler 1983 and in the Rio de la Plata region (Vizziano &Berois 1990 andMacchi 2004). Ikeda (2003) noted that the peaks of spawning were closely linked to rainfall. Multiple spawning is typical in species of tropical, temperate and subtropical waters, which is thought to improve survival (Nikolsky 1963).…”

Section: Resultsmentioning

confidence: 94%

“…However, sex ratio could change by spatial segregation during spawning activity, or for sampling biases. Meanwhile, data from the REVIZEE (Program to Evaluate the Sustainable Potential of Living Resources in the Exclusive Economic Zone) noted a 2:1 female/male sex ratio (Ikeda et al 2003), which differed from the findings of Ikeda (2003) on the Pará coast of a 1:1 male/female ratio.…”

Section: Resultsmentioning

confidence: 98%

“…From histological analysis performed in this study, M. ancylodon was found to be a batch spawner, with spawning occurring mainly during November/December and August/September (dry season). Yamaguti (1967), Ikeda (2003) and Santos (2007) stated that this species is characterized by fractional spawning, but is able to reproduce throughout the year. Previously it was reported that this species is a batch spawner in Brazil (Vazzoler 1963, Isaac-Nahum & Vazzoler 1983 and in the Rio de la Plata region (Vizziano &Berois 1990 andMacchi 2004).…”

Section: Resultsmentioning

confidence: 99%

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Reproductive biology of king weakfish, <i>Macrodon ancylodon</i> (Perciformes, Sciaenidae) from the northeastern coast of Brazil

Cardoso

Santos

Almeida

et al. 2019

Rev. biol. mar. oceanogr.

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Resumen.-Se estudió la biología reproductiva de Macrodon ancylodon, pez de importancia comercial ampliamente distribuido a lo largo de la costa atlántica de América del Sur, a partir de 240 muestras colectadas en la costa de la provincia de Maranhão, noreste de Brasil. Los especímenes variaron de 18,2 cm a 33,5 cm, exhibiendo alometría positiva. La longitud total de la primera madurez sexual fue de 21,13 cm. M. ancylodon tiene una maduración gonadal asincrónica y sería un desovador parcial dentro de un período reproductivo. Tanto la longitud como el peso de las hembras no afectaron la fecundidad relativa. El análisis del índice gonadosomático, factor de condición y frecuencia de los estadios de maduración muestra que M. ancylodon es capaz de reproducirse durante todo el año, a pesar de que se observaron picos de desove durante noviembre-diciembre y agosto-septiembre. Los resultados evidencian que el área de estudio es utilizada por M. ancylodon para la reproducción. Los datos obtenidos serán de gran valor para el desarrollo de estrategias de gestión de los recursos pesqueros.

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Section: Resultscontrasting

confidence: 73%

Section: Discussionmentioning

confidence: 61%

Section: Resultsmentioning

confidence: 94%

Section: Resultsmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 99%

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Reproductive biology of king weakfish, <i>Macrodon ancylodon</i> (Perciformes, Sciaenidae) from the northeastern coast of Brazil

Cardoso

Santos

Almeida

et al. 2019

Rev. biol. mar. oceanogr.

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Dieta Natural de Macrodon ancylodon (Bloch & Schneider, 1801) Capturada por Embarcações Pesqueiras Industriais Sediadas no Estado do Pará

Castro¹,

Lima²,

Mendes³

et al. 2015

Biota Amazônia

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Os espécimes de Macrodon ancylodon foram coletados no período de dezembro de 2010 a novembro de 2011, da costa do Amapá ao litoral do Pará, utilizando duas redes de arrasto simultaneamente para peixes e camarão, e realizadas seis amostragens diárias com duração média de 2h. Em laboratório os estômagos de M. ancylodon foram fixados em formalina à 4 %, retirados para pesagem e análise dos itens alimentares, sendo calculado a Frequência de Ocorrência (Fi), Índice de Análise Volumétrica (Vi), Índice de Importância Alimentar (IIA). Os itens de maior Fi e IIA foram os fragmentos de camarão (Fi= 29,72 e IIA= 742,92), fragmentos de peixe (Fi= 27,83 e IIA= 695,75), Penaeidae (Fi= 8,02 e IIA= 200,47) e Polychaetas (Fi= 6,84 e IIA= 170,99). Com os resultados de ANOVA (a= 5%) foi possível verificar alta significância estatística na relação peso total do indivíduo por zona pesqueira (p<0,01) sendo a Zona 2 (Foz do Amazonas) a de maior média deste fator, assim como a estação chuvosa (p<0,01) confirmado pelo teste de Tukey. Fragmentos de camarão foram os mais frequentes, no entanto, demonstraram menor peso. Por outro lado, os peixes foram menos frequentes, apresentando maior peso. Observa-se que a dieta da espécie é bastante diversificada, principalmente durante o período chuvoso. Esta variedade de componentes alimentares também é observada quanto às classes de tamanho, onde os indivíduos com 15,1 e 20 cm apresentaram uma dieta mais diversificada. O presente estudo constatou que a espécie possui hábitos carnívoros, com preferência primariamente por crustáceos, peixes e Polychaetas.

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Feeding habits of Macrodon ancylodon (Actinopterygii, Sciaenidae) in northeast, Brazil

Figueiredo

Neta

Nunes

et al. 2014

Rev. biol. mar. oceanogr.

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Resumen.-Se estudiaron los hábitos alimenticios de la pescadilla real Macrodon ancylodon basado en 280 muestras en la costa de la provincia de Mar anhão, noreste de Brasil . La dieta mostró un predominio de peces, cru stáceos y ocasionalmente cefalópodos. Las dietas de los machos y hembras fueron similares y se encontraron diferencias en la proporción de presas entre los juveniles, subadultos y adultos. Durante la temporada de lluvias las presas fueron más diversas que en la temporada seca. En la estación seca M. ancylodon se alimenta más de Penaeidae (Penaeus sp. y Penaeus schmitti), Callinectes sp. y Engraulidae (Cetengraulis sp.). Se observó un aumento del espectro de alimentos en la temporada de lluvias, con presas de 5 especies de peces (Anchovia clupeoides, Cetengraulis edentulus, Macrodon ancylodon, Mugil curema y Sardinella brasiliensis), 3 especies de crustáceos (Penaeus schmitti, Parapenaeus politus y Callinectes sp.) y 2 cefalópodos (Loligo sp. y Loligo plei). Las diferencias en la ingestión de presas se encontraron durante el año, en la estación de lluvia, donde los individuos de esta especie presentaron mayores contenidos estomacales. El canibalismo se encontró con mayor intensidad para los peces maduros. Palabras clave: Pescadilla real, dieta, contenido del estómago, MaranhãoAbstract.-The feeding habits of Macrodon ancylodon were studied based on 280 specimens from the Maranhão coast, northeast Brazil. The diet showed a predominance of fishes, crustaceans and occasionally cephalopods. The diets of males and females were similar and difference was found in the proportion of prey items among juveniles, sub adults, and adults (P > 0.05). During rainy season the prey items were more diverse than dry season. In the dry season M. ancylodon feeds more Penaeidae (Penaeus sp. and Penaeus schmitti), Callinectes sp. and Engraulidae (Cetengraulis sp.). An increase of food spectrum was observed in rainy season, preyed upon 5 species of fish ( Anchovia clupeoides, Cetengraulis edentulus, Macrodon ancylodon, Mugil curema and Sardinella brasiliensis), 3 species of Crustacea (Penaeus sp., Penaeus schmitti, Parapenaeus politus, and Callinectes sp.) and 2 Cephalopoda (Loligo sp. and Loligo plei). Differences in the ingestion of prey items were found during the year, where in the rainy season this species presented larger stomach contents. Cannibalism was encountered more intensively for mature fish.

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Idade, crescimento e aspectos reprodutivos de Macrodon ancylodon (Bloch & Schneider, 1801) na Costa Norte do Brasil

Cited by 6 publications

References 12 publications

Reproductive biology of king weakfish, <i>Macrodon ancylodon</i> (Perciformes, Sciaenidae) from the northeastern coast of Brazil

Reproductive biology of king weakfish, <i>Macrodon ancylodon</i> (Perciformes, Sciaenidae) from the northeastern coast of Brazil

Dieta Natural de Macrodon ancylodon (Bloch & Schneider, 1801) Capturada por Embarcações Pesqueiras Industriais Sediadas no Estado do Pará

Feeding habits of Macrodon ancylodon (Actinopterygii, Sciaenidae) in northeast, Brazil

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