Variabilidad De Indices Biologicos en Pinguipes Chilensis Valenciennes 1833 (Perciformes, Pinguipedidae): ¿estan Realmente Correlacionados?

González, Paola; Oyarzún, Ciro

doi:10.4067/s0717-65382002000200023

Cited by 21 publications

(22 citation statements)

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“…S1, available as Supplementary Material). A similar pattern was also reported by González & Oyarzún (2002) for P. chilensis.…”

Section: Discussionsupporting

confidence: 70%

“…Pinguipes brasilianus shares the same general reproductive features of other pinguipedid fishes from the Southern tip of South America: P. chilensis and P. semifasciata: it is a dioicus species with external fecundity that releases several batches of oocytes throughout an extended spawning season (Macchi et al, 1995;González, 1998;González & Oyarzún, 2002). This latter feature, together with the coexistence of oocytes from all developmental stages in the ovaries indicate that P. brasilianus is a multiple spawner.…”

Section: Discussionmentioning

confidence: 75%

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The reproductive biology of Pinguipes brasilianus Cuvier, 1829 (Osteichthyes: Pinguipedidae) in temperate rocky reefs of Argentina

et al. 2015

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Pinguipes brasilianus is a conspicuous and abundant rocky-reef fish inhabiting the Northern Patagonian gulfs of Argentina, Southwest Atlantic. This study describes its reproductive biology in this region. We made macroscopic and histological descriptions of the testis and ovary development, analyzed the evolution of the gonadosomatic index (GSI) in both sexes throughout the year, and estimated fecundity and length at 50% maturity for females. Pinguipes brasilianus is a multiple spawner with indeterminate annual fecundity and an extended reproductive season, encompassing austral spring and summer. Low GSI values in males (monthly means ranged between 0.11% and 0.75%) and low relative fecundity in female fish (between 2 and 44 oocytes/g) are consistent with a need of close proximity between male and female during oocyte fertilization, sexual courtship and with spawning in pairs and/or within reef crevices. The estimated length at 50% maturity (± SD) for females was 15.22 ± 0.43 cm total length. Although P. brasilianus shares the main reproductive features of its congeneric species Pinguipes chilensis, male GSI and female length at 50% maturity in P. brasilianus were markedly lower than those reported for P. chilensis, while relative and batch fecundity were greater in fish of the same size.Pinguipes brasilianus es una especie abundante en los arrecifes rocosos de los golfos norpatagónicos de Argentina, en el Atlántico Sudoccidental. En este trabajo estudiamos su biología reproductiva, incluyendo la descripción macroscópica e histológica del desarrollo de testículos y ovarios, el análisis de la evolución del índice gonadosomático (IGS) para ambos sexos a lo largo del ciclo anual, y la estimación de la fecundidad y la talla de primera madurez para las hembras. Pinguipes brasilianus es un desovante múltiple con fecundidad indeterminada y una estación reproductiva extensa que abarca la primavera y el verano australes. Los bajos valores de IGS en machos (el promedio mensual varió entre 0,11% y 0,75%), y la baja fecundidad relativa en las hembras (entre 2 y 4 oocitos/g) son consistentes con un sistema de apareamiento que involucra una estrecha proximidad entre machos y hembras durante la fertilización de los oocitos, cortejo y desove en parejas y/o en áreas confinadas (ej.: refugios). La talla de primera madurez (± DE) estimada para las hembras fue de 15,22 ± 0,43 cm de largo total. Aunque P. brasilianus comparte los principales rasgos reproductivos con Pinguipes chilensis, tanto los valores promedio de IGS en machos como la talla de primera madurez en hembras fueron menores que los reportados para P. chilensis, mientras que la fecundidad (parcial y relativa) fue mayor.

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“…S1, available as Supplementary Material). A similar pattern was also reported by González & Oyarzún (2002) for P. chilensis.…”

Section: Discussionsupporting

confidence: 70%

Section: Discussionmentioning

confidence: 75%

The reproductive biology of Pinguipes brasilianus Cuvier, 1829 (Osteichthyes: Pinguipedidae) in temperate rocky reefs of Argentina

et al. 2015

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“…<2% for serranids, Petersen & Warner 1998) are typical of pair‐spawning fishes, where sperm competition is less important. In general, pinguipedids have low maximum GSI values (2.7% in Pinguipes chilensis Valenciennes: González & Oyarzún 2002; 0.8% in Parapercis colias (Forster): Pankhurst & Conroy 1987; 0.31% in Parapercis cylindrica (Bloch): Walker & McCormick 2004). Some hermaphrodite pinguipedid species belonging to the genera Parapercis show haremic mating systems in which males defend a territory (Nakazono, Nakatani & Tsukahara 1985; Sano 1990; Ohnishi, Yanagisawa & Kohda 1997; Walker & McCormick 2004).…”

Section: Discussionmentioning

confidence: 99%

Annual occupation pattern of temperate rocky reefs by the Argentine sandperchPseudopercis semifasciatain San José Gulf Marine Park, Argentina

Venerus

Parma

Galván

2008

Fisheries Management Eco

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The Argentine sandperch, Pseudopercis semifasciata (Cuvier), is the target of unregulated recreational and artisanal fisheries within the northern Patagonian gulfs of Argentina. Being a reef species, the applicability of conventional large-scale assessment and management approaches appear limited. A more suitable alternative might be offered by spatial approaches, but their effectiveness would depend on the speciesÕ degree of mobility. Underwater visual censuses were used to study the annual occupation pattern of shallow rocky reefs by P. semifasciata to evaluate the possible occurrence of spawning migrations and the potential of reserves to protect the stocks. The abundance of P. semifasciata was greatest in winter, intermediate in autumn and lowest in spring and summer, but densities were relatively stable and oscillated ±17-31% around the overall mean for each reef. There was no evidence of spawning migrations as no demographic changes were observed throughout the year. Young sandperches (<1 year old) were never observed on the reefs. Implications of the results for the management of this species are discussed. K E Y W O R D S : generalized linear models, northern Patagonia, rocky reef fish, spawning migrations, underwater visual censuses.

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“…Este es el primer trabajo que aborda la reproducción de A. interruptus, a pesar de que esta especie tiene amplia distribución en el Pacífico y es de gran importancia en la región de estudio. Varios autores han señalado en diferentes especies de peces que el IGS puede ser un indicador confiable del periodo reproductivo (Arellano-Martínez & Ceballos-Vázquez 2001, González & Oyarzún 2002, Palomera-Sánchez 2004, Lucano-Ramírez et al 2001c, 2005, Sánchez-Cárdenas et al 2007, Piñón et al 2009). En este caso, el IGS es un indicador aceptable del principal periodo de reproducción en A. interruptus, (febrero-mayo).…”

Section: Longitud De Maduración Sexual (L 50 )unclassified

Biología reproductiva de <i>Anisotremus interruptus</i> (Perciformes: Haemulidae) en el Pacífico central mexicano

Ruiz-Ramírez

Lucano-Ramírez

González-Sansón

et al. 2012

RBT

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Reproductive biology of Anisotremus interruptus (Perciformes: Haemulidae) in the Mexican Central Pacific. Anisotremus interruptus is a widely distributed and commercially important species in the Eastern Pacific. A multi-year research on the reproduction of this species was carried out in coastal waters of Jalisco, Mexico. For this purpose, monthly samples were gathered with gillnets of different mesh sizes from 1998-2008. A total of 1 090 individuals were collected with a total length range between 15.6-61.0cm. Significant differences from expected 1:1 ratio were found for sex ratios in the total sample and for each size class, but not when comparisons among months and years were done. Temporal variations of the gonadosomatic index and proportions of maturation stages suggest that the main reproductive period is from February to May, although some less intensive spawning events were observed in other months. Seven stages of oocytes development were identified. Oocytes in different stages of development were identified in ovaries classified as mature, suggesting an asynchronic type of gonad development. Mean maturation length (L 50 ) was 31.0 for females and 29.7cm for males. The internal organization of testes is of lobular type. Rev. Biol. Trop. 60 (2): 709-720. Epub 2012 June 01.

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Variabilidad De Indices Biologicos en Pinguipes Chilensis Valenciennes 1833 (Perciformes, Pinguipedidae): ¿estan Realmente Correlacionados?

Cited by 21 publications

References 0 publications

The reproductive biology of Pinguipes brasilianus Cuvier, 1829 (Osteichthyes: Pinguipedidae) in temperate rocky reefs of Argentina

The reproductive biology of Pinguipes brasilianus Cuvier, 1829 (Osteichthyes: Pinguipedidae) in temperate rocky reefs of Argentina

Annual occupation pattern of temperate rocky reefs by the Argentine sandperchPseudopercis semifasciatain San José Gulf Marine Park, Argentina

Biología reproductiva de <i>Anisotremus interruptus</i> (Perciformes: Haemulidae) en el Pacífico central mexicano

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