Biología reproductiva del pargo &lt;i&gt;Lutjanus inermis&lt;/i&gt; (Perciformes: Lutjanidae), en el Pacífico central mexicano.

Lucano-Ramírez, Gabriela; Ruiz-Ramírez, Salvador; González-Sansón, Gaspar; Vázquez, Bertha Patricia Ceballos

doi:10.15517/rbt.v60i1.2774

Cited by 10 publications

(18 citation statements)

References 14 publications

(20 reference statements)

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“…The largest collected specimen was 378 mm TL (Table ), surpassing the largest length reported by Lucano‐Ramírez et al. () of 370 mm TL.…”

Section: Discussionmentioning

confidence: 62%

“…The species is found along rocky shores and coral reefs and feeds on crustaceans and fish (trophic level 3.1; Froese and Pauly, 2013) and fish larvae (Amezcua-Linares, 2009;Robertson and Allen, 2014). In coastal waters of central Mexico, the females reach maturity at 239 mm TL and males at 236 mm TL (Lucano-Ram ırez et al, 2012). This lutjanid is part of the multispecific local fishery in coastal waters of the eastern Pacific, and is usually captured with lines, gillnets, and trawling (Franke and Acero-Pizarro, 1992;Espino-Barr et al, 2003; Arregu ın-S anchez and Arcos-Huitr on, 2011).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Range extension ofLutjanus inermis(Peters, 1896) (Perciformes: Lutjanidae) to the central region of the Gulf of California, Mexico

et al. 2015

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“…The largest collected specimen was 378 mm TL (Table ), surpassing the largest length reported by Lucano‐Ramírez et al. () of 370 mm TL.…”

Section: Discussionmentioning

confidence: 62%

Section: Introductionmentioning

confidence: 99%

Range extension ofLutjanus inermis(Peters, 1896) (Perciformes: Lutjanidae) to the central region of the Gulf of California, Mexico

et al. 2015

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“…Uribe et al (2014) señalan que muchas especies de teleósteos presentan un tipo de testículo en donde el desarrollo de las espermatogonias no está restringido; en este tipo de testículo las espermatogonias se encuentran a todo lo largo de los lóbulos, en donde se lleva a cabo todo el proceso de la espermatogénesis. En este estudio M. dentatus mostró este mismo patrón de desarrollo y también fue reportado para P. grandisquamis por Lucano-Ramírez et al (2006) (Lucano-Ramírez et al 2016). Un aspecto interesante en M. dentatus es que desarrolla un conducto espermático en la parte externa de la gónada en donde los espermatozoides se concentran, en la mayoría de los peces el conducto espermático se encuentra en el interior del testículo.…”

Section: Discussionunclassified

“…Para evaluar el desarrollo reproductivo del testículo se consideraron los trabajos de Lucano-Ramírez et al (2001c) y Brown-Peterson et al (2011). Para el análisis mensual del diámetro de los ovocitos (DO), se analizaron 5 cortes histológicos de cada estadio macroscópico obtenido por mes (sin considerar el año); de cada corte se midieron 10 ovocitos de las distintas fases observadas, esto mediante una cámara digital AxioCam ERc5s (Zeiss), acoplada a un microscopio AxioLabA1 (Zeiss); dichos diámetros resultaron del promedio entre el diámetro mayor y menor de cada ovocito; solo se midieron los ovocitos donde se observó el núcleo (West 1990, Lucano-Ramírez et al 2016.…”

Section: Introductionunclassified

Biología reproductiva de <i>Mulloidichthys dentatus</i> (Perciformes: Mullidae) en el Pacífico tropical mexicano

Lucano-Ramírez

Robles-Ravelero

Ruiz-Ramírez

et al. 2019

Rev. biol. mar. oceanogr.

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Although Mulloidichthys dentatus is a commercially important species in this region of the Mexican Pacific, most aspects of its biological life cycle, including reproduction, are not known. The main goal of this study was the description of several reproductive traits of M. dentatus in the southern coast of Jalisco, Mexico. Monthly sampling was carried on from January 1998 to December 2008. Fish were caught using a set of gill nets with different mesh sizes. A total of 1,590 individual were sampled and total length (TL), total weight, sex and maturation stage were determined for each fish. Gonads were extracted and preserved for histological analyses. Minimum, mean and maximum TL of fish sampled were 16.5, 30.9 and 40.0 cm, respectively. A total of 899 females and 691 males were collected with the overall sex ratio equal to 1.3:1. Maximum values of gonadosomatic index (GSI) and mean oocyte diameter, as well as the percentages of gonads in advanced reproduction stages suggest that M. dentatus has three main reproductive periods in March, May-July and November. Significant correlation between both sexes was found for GSI and condition factor. Seven oocyte development phases were found in ripe ovaries, which suggest asynchronic oocyte development. Cell arrangement found in testis was of lobular type with an externally well-defined sperm duct. Maturation length was 25.4 cm for females and 24.5 cm for males. As these values are less than the mean lengths observed in catches (31.9 and 29.7 cm TL), it can be assumed that more than 50% of caught individuals have had a reproductive event (99% female and male).Resumen.-Aunque Mulloidichthys dentatus se captura de manera comercial en esta región del Pacífico mexicano, no se conoce gran parte de su biología básica, incluida la reproducción. Este estudio describe aspectos reproductivos de M. dentatus en la costa sur de Jalisco, México. El trabajo se realizó entre enero de 1998 a diciembre de 2008 con muestreos mensuales. Los organismos fueron capturados con redes de enmalle de diferente luz de malla. Se obtuvieron 1.590 organismos, a los cuales se les registró la longitud total, peso total, se les extrajeron las gónadas, se determinó el sexo, se evaluó el estadio de madurez y se procesaron histológicamente las gónadas. Las longitudes mínima, promedio y máxima fueron 16,5, 30,9 y 40,0 cm, respectivamente. Del total de organismos, 899 fueron hembras y 691 machos. La proporción sexual fue dominada por las hembras (1,3:1 H:M). Los valores máximos del índice gonadosomático (IGS), del diámetro promedio de los ovocitos, así como los porcentajes de organismos con gónada en estadio capaz de reproducirse, sugieren que M. dentatus presenta tres periodos reproductivos: en marzo, de mayo a julio y en noviembre. Se encontró correlación temporal entre sexos para el IGS y factor de condición relativo. El ovario maduro presentó 7 fases de desarrollo de ovocitos, lo que sugiere que el desarrollo de los ovocitos es asincrónico. El arreglo de las células que se encontró en el testículo fue de ti...

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“…Environmental factors such as temperature, precipitation, and salinity, regulate the reproductive physiology of fish, such as the development of oogenesis and spermatogenesis, which determine the spawning seasons and the settlement of the reproductive cycle (Sokolowska & Kulczykowska, 2006;Lucano-Ramírez, Ruiz-Ramírez, González-Sansón, & Ceballos-Vázquez, 2011;Costa & Daniel, 2012;Correa-Herrera & Jímenez-Segura, 2013). This condition explains the results found in this research, where the lowest values of the GSI, gV, Dst reproductive indicators from January to February, coincide with the lowest averages for the temperature in the region.…”

Section: Discussionmentioning

confidence: 99%

Permanent germinal epithelium and reproductive cycle of tropical gar Atractosteus tropicus males (Lepisosteiformes: Lepisosteidae), Tabasco, Mexico

Méndez-Marín

Franyutti

Álvarez‐González

et al. 2016

RBT

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Tropical gar A. tropicus plays an important ecological role, as a regulator of other fish stocks, in the water bodies of Mexico but their wild populations are being reduced. One conservation alternative is breeding which requires the study of germ and somatic structures of testis to characterize the reproductive cycle, basic knowledge required to create exploitation and conservation models. Three sexually mature males were captured on a monthly basis (N=24), in wild populations of Pomposu lagoon, municipality of Jalpa de Mendez (18°19'59" N - 93°01'12" W), Tabasco, Mexico. The capture technique was trawl net; they were transported live to the Tropical Aquaculture Laboratory, DACBiol, UJAT. Males were sacrificed by decapitation; testis fragments from all of the specimens collected were processes using a routine histological procedure, that consisted of dehydration for ascending etanol series, xylol, and inclusion in paraffin, with a sliding microtome 7µm thick cuts, and were dyed with hematoxylin-eosin (HE). The diameter of 20 seminiferous tubules (Tse), height of germinal epithelium (Egl), gonadosomatic index (GSI) and gonad volume (Gv) were determined on a monthly basis, as well as the gonadosomatic index GSI=PG/PT(100) and the gonad volume vG=4/3 pa2.b. Morpho-physiological characteristics of the testis show that it consists of a network of tubules anastomosed with non-restricted cystic spermatogenesis, and a permanent germinal epithelium. As far as we are concerned, this is the first time that this type of epithelium is reported in Holostei (Lepisosteiformes: Lepisosteidae). Five reproductive classes were identified: Class I Recrudescence, Class II Early Maturation, Class III Intermediate Maturation, Class IV Advanced Maturation, Class V Regression, that when contrasted with the monthly value of the "GSI, GV, Tse" sexual indicators it shows a variation pattern: January-February shows low values with empty testis, with discontinuous germinal epithelium in regeneration; in March spermiogenesis increased and spermatogenesis decreased. Generally speaking, these variations show that at a population level they do not mature synchronously, but with an annual seasonal reproductive cycle with spermatogenesis throughout the year, where temperature and precipitation seem to play an important role as a factor that stimulates reproductive activity and therefore spermiation.

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Biología reproductiva del pargo <i>Lutjanus inermis</i> (Perciformes: Lutjanidae), en el Pacífico central mexicano.

Cited by 10 publications

References 14 publications

Range extension ofLutjanus inermis(Peters, 1896) (Perciformes: Lutjanidae) to the central region of the Gulf of California, Mexico

Range extension ofLutjanus inermis(Peters, 1896) (Perciformes: Lutjanidae) to the central region of the Gulf of California, Mexico

Biología reproductiva de <i>Mulloidichthys dentatus</i> (Perciformes: Mullidae) en el Pacífico tropical mexicano

Permanent germinal epithelium and reproductive cycle of tropical gar Atractosteus tropicus males (Lepisosteiformes: Lepisosteidae), Tabasco, Mexico

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