Federico Garcia Dominguez

• Dr.
• National Polytechnic Institute

The spotted rose snapper (Lutjanus guttatus) is a commercially important species that provides economic income to small-scale fisheries in the Pacific coastal regions of Guatemala; however, there are no studies on this species that establish a baseline of knowledge on their reproductive aspects and potential management measures. The present study w...

Antecedentes. Los abulones son un recurso acuícola de gran importancia en el mercado alimentario internacional. Sin embargo, el cultivo de abulón enfrenta un problema de disponibilidad de alimento según la temporada, especialmente en México. Objetivo. El presente estudio tuvo como objetivo formular dietas para juveniles de Haliotis fulgens a partir...

La liseta Mugil curema está entre las principales especies que explota la pesquería artesanal en la costa mexicana del Océano Pacífico. Abordar aspectos reproductivos de las especies por zona de pesca reducirá el sesgo en la evaluación del estado de sus poblaciones. El objetivo del presente estudio fue describir el ciclo reproductivo y estimar algu...

In a holistic approach it is important to identify potential fishing units to better understand population structure and dynamics. The objective of this work was to evaluate the potential existence of a Mugil curema population structured in stocks in La Paz Bay. For this, a total of 709 specimens were collected between 2010 and 2013. Two fish group...

This study analyzed the reproductive cycle of Chiton virgulatus and its relationship with air temperature (AT) sea and surface temperature (SST), photoperiod, and tidal cycle (TC) in Bahía de La Paz, in the coast of the Gulf of California. Monthly samples were collected from September 2008 to September 2009. The parameters recorded included total l...

The demand for abalone at international level makes it a high-commercial value product, and its fishing represents an important economic activity. Several research studies have described the reproductive biology of green (Haliotis fulgens) and pink (Haliotis corrugata) abalone to determine the spawning season, but no information is still available...

The term fecundity in abalone is defined according to an estimate of its absolute fecundity, which is the number of mature oocytes present in the gonad, or as potential fecundity, i.e., the total number of oocytes present in the gonad. In Mexico, few studies have estimated the fecundity of mollusks and these have been performed on gonads in differe...

The monitoring on abalone banks has been intensified since the declining of wild global production due to overfishing, disease, environmental changes and poaching. This is to support timely decisions to execute actions for mitigation, prevention, conservation and fisheries production benefits. Eight morphophysiological indices for green abalone, Ha...

This article describes the changes in the concentration of lipids, proteins, and carbohydrates in the gonad, digestive gland, foot and mantle of Haliotis fulgens over a reproductive cycle. An average of 30 specimens was collected each month between September 2011 and August 2013 from La Bocana, Baja California Sur, Mexico. The biometrics of each sp...

Identifying the maturity stage of specimens is essential for the determination of the spawning season, which in turn facilitates the formulation of adequate fisheries management measures for the sustainable use of sea resources, such as abalone. This study aims to validate, based on histological evidence, a gonad maturation scale that encompasses f...

Diatom species diversity in the natural diet of healthy adult green abalone (Haliotis fulgens) and pink abalone (H. corrugata) from NW Mexico was analyzed and, referenced with values of condition index and hepato-gonadic index, used respectively as indicators of the health and reproductive season for the abalone. Likewise observations were done in...

This paper describes the oogenesis of Chiton virgulatus, based on histological observations under transmission and scanning electron microscopy. Three oocyte types were identified: i) previtellogenic oocytes with a mean diameter of 50±20.5 mm, surrounded by elongated follicular cells of approximately 5 μ, ii) immature vitellogenic oocytes with a me...

Concentrations of cadmium (Cd), lead (Pb), copper (Cu), zinc (Zn) and iron (Fe) were measured in three macroalgal species, Codium simulans, Sargassum sinicola and Gracilaria pachydermatica, and in the sea slug Elysia diomedea, living in marine ecosystems dominated by Sargassum species and located near exploited phosphorite deposits. Metal concentra...

Some reproductive features of Saccostrea palmula (Carpenter, 1857) and Anadara tuberculosa (Sowerby, 1833) from the Santo Domingo (SD) and El Conchalito (ECO) estuaries were investigated to determine differences related to environmental variability and similarities arising from sharing the same location. Both species display five stages of gonadal...

We analyze the composition and community structure of soft-bottom molluscs of Isla San Francisco (24°48' N, 110° 34' W) and its possible relation to some environmental variables. We selected 18 sampling sites on the summer of 2012. 36 samples were collected, 18 correspond to biological samples and 18 to sediment. The temperature, depth, sediment ty...

Through histological analyses, this study reveals an unusually high incidence of hermaphroditism in Chiton articulatus. Specimens were sampled every 30 days between September 2010 and September 2011 at two locations (Las Brisas and Jaramillo beaches, Acapulco) on the tropical eastern Pacific coast of Mexico. At both sites, hermaphroditism was found...

The cannonball jellyfish Stomolophus meleagris is regarded as a fishery resource with high commercial value, but with scarce biological information. With the aim to generate preliminary information on reproductive aspects, the present study analyzes its fecundity, based on the estimated number of vitellogenic oocytes in the gonad; in addition, we e...

La medusa Stomolophus meleagris es considerada un recurso pesquero de alto valor comercial. Debido a la relevancia de conocer aspectos de importancia biológica actualmente desconocidos, el presente trabajo analiza la fecundidad con base en la estimación del número de ovocitos vitelogénicos en la gónada; su relación con la longitud, diámetro y peso...

The naked marine dinoflagellates Cochlodinium convolutum and C. helicoides are reported for the first time in the Gulf of California. They occurred in seawater at 21-24.5°C. Cochlodinium convolutum was found in both bottle and net samples; its abundance ranged from 400-2200 cells L–1. A total of 96 specimens of C. convolutum and 23 specimens of C....

The naked marine dinoflagellates Cochlodinium convolutum and C. helicoides are reported for the first time in the Gulf of California. They occurred in seawater at 21-24.5°C. Cochlodinium convolutum was found in both bottle and net samples; its abundance ranged from 400-2200 cells L –1. A total of 96 specimens of C. convolutum and 23 specimens of C....

This paper describes basic aspects of the reproductive biology of the medusa phase of Stomolophus meleagris. From January to May 2006, 34 individuals were collected every month, in Las Guásimas Lagoon, Sonora, México. Specimens were weighed and measured; their gonads were removed and processed following the standard histological hematoxylineosin st...

This paper describes basic aspects of the reproductive biology of the medusa phase of Stomolophus meleagris. From January to May 2006, 34 individuals were collected every month, in Las Guásimas Lagoon, Sonora, México. Specimens were weighed and measured; their gonads were removed and processed following the standard histological hematoxylin-eosin s...

Reproductive aspects (spawning season, size and weight at maturity, and fecundity) of Octopus hubbsorum are reported for Espíritu Santo Island, southern Gulf of California (Mexico). A total of 230 octopuses were captured (46% females and 54% males) between June 2006 and June 2007. The sex ratio was not significantly different from 1:1 (P > 0.05) ex...

Reproductive aspects (spawning season, size and weight at maturity, and fecundity) of Octopus hubbsorum are reported for Espíritu Santo Island, southern Gulf of California (Mexico). A total of 230 octopuses were captured (46% females and 54% males) between June 2006 and June 2007. The sex ratio was not significantly different from 1:1 (P > 0.05) ex...

The reproductive cycle of Hyotissa hyotis during El Niño 1997-98 and La Niña 1998-99 events in La Ballena Island, Gulf of California, Mexico was examined in relation to sea water temperature and chlorophyll a concentration. Every month, from January 1997 to December 1999, 30 adult specimens of H. hyotis were collected at 10 m depth by scuba diving....

The present chapter summarizes studies conducted to develop the cultivation of the scallops, N. nodosus and N. subnodosus, including three stages of their culture in the marine environment: nursery stage, intermediate culture and growout. To give a clearer vision, the present chapter was divided in two parts. The first part deals with the advances...

Piñera. 2010. La pesquería de la almeja chocolata Megapitaria squalida (Bivalvia: Veneridae) en Baja California Sur, México. Hidrobiológica 20 (3): 230-237. RESUMEN La almeja chocolata Megapitaria squalida representa una de las pesquerías de bivalvos más importantes en Baja California Sur. Sin embargo, poco se sabe sobre el estado actual de esta pe...

Nuevos registros de Drechselia danae (Joubin, 1931) (Cephalopoda: Cranchiidae) en el Pacífico mexicano Se registra la presencia de tres especímenes adultos del calamar cristal Drechselia danae recolectados en tres localidades del Océano Pacífico mexicano. Las características taxonómicas básicas para su identificación incluyeron la forma general del...

La medusa S. meleagris, ha mostrado potencial de explotación pero hay escasa información sobre su biología reproductiva. El presente trabajo pretende conocer el contenido de los triglicéridos y fosfolípidos en los ovocitos durante el desarrollo gonadal, así como la proporción de sexos, talla de primera madurez y la concentración de proteínas y lípi...

The jellyfish Stomolophus meleagris has potential for commercial exploitation but there is little information on their reproductive biology. This paper seeks to evaluate some biochemical and demographic characteristics of the species. Samples were taken monthly during 2005 and 2006. Jellyfish collected in 2005 were used to describe the characterist...

The reproductive cycle of Holothuria (Selenkothuria) lubrica was monitored from November 2003 to November 2004. A total of 1438 specimens were weighted and measured and the gonad of 390 individuals were preserved for the reproduction analysis. The mean length and weight were 9.69±0.070cm and 18.25 ± 0.271 g respectively. The result showed that the...

The Squalid Callista Megapitaria squalida is one of the most important bivalve fisheries in Baja California Sur. However, there is scarce information about the current state of the fishery. In order to obtain an overview of the fishery development, spatial and temporal catch trends were analyzed. The analysis was based on monthly and by area catche...

Through histological analyses, this investigation reveals an unusual high incidence of hermaphroditism in Megapitaria squalida, a gonochoric species. A total of 684 specimens were sampled at monthly intervals from February 2007 to January 2008 at Bahía de La Paz and Bahía Magdalena, Baja California Sur, Mexico. Microscopic examination showed that 2...

Hyotissa hyotis specimens were collected at Espíritu Santo Island, Gulf of California, from March 1998 to March 1999. Water temperature was recorded, gut-content samples were obtained, phytoplankton abundance was estimated, and the reproductive status was inferred through the gonadic index. Gut content included phytoplankton, mostly diatoms (86.5%)...

The monthly variation in the biochemical composition of the digestive gland, the adductor muscle and the gonad and its relationship with the gonadal index (GI) were studied during 2 years in a wild population of Hyotissa hyotis living in the Gulf of California. Protein was the main constituent of the gonad, digestive gland and adductor muscle. Temp...

The reproductive cycle of Anadara tuberculosa (Sowerby, 1833) and its relationship with temperature and food availability in Magdalena Bay, Mexico was studied. Twenty five adult specimens were collected, on a monthly basis, between January 1998 and February 1999. Gonads were processed by routinary histology. The reproductive cycle was divided in fi...

The reproductive cycle of Anadara tuberculosa (Sowerby, 1833) and its relationship with temperature and food availability in Magdalena Bay, Mexico was Studied. Twenty five adult specimens were collected, on a monthly basis, between January 1998 and February 1999. Gonads were processed by routinary histology. The reproductive cycle was divided in fi...

Changes in biochemical composition of adductor muscle, gonad, and digestive gland of Hyotissa hyotis, and their relationship to reproduction were studied during the events of La Niña (1998-1999) and El Niño (1997-1998). In the last event, adductor muscle was the main storage organ of protein and carbohydrates. Lipids were mainly stored in gonad and...

Changes in biochemical composition of adductor muscle, gonad, and digestive gland of Hyotissa hyotis, and their relationship to reproduction were studied during the events of La Niña (1998-1999) and El Niño (1997-1998). In the last event, adductor muscle was the main storage organ of protein and carbohydrates. Lipids were mainly stored in gonad and...

The reproductive cycle of purple snail, Plicopurpura pansa (Gould 1853), sampled randomly monthly over a period of 20 mo at Playa Cerritos at the Pacific, and Punta Perico at the Gulf of California, Baja California Sur, Mexico, was examined by histological observations of the gonadal development. At both sites year-round copulations were observed,...

The reproductive cycle of Hyotissa hyotis at Isla La Ballena, Gulf of California, was studied from August 1995 to December 1996. The histologic analysis revealed that spawning in H. hyotis occurred as a continued phenomenon throughout virtually the whole period of study, with a steep rise in the spawning effort during the warmest season in July and...

The variation of the gonadal, muscular yield and digestive gland indexes was studied in Spondylus princeps from Punta Eugenia and Isla Cedros, Mexico. Specimens were collected from March to July 1997 and from August to December 2003. Gonadal indexes from 2% to 4% suggest reproductive inactivity from March to May and from October to December. The su...

The variation of the gonadal, muscular yield and digestive gland indexes was studied in Spondylus princeps from Punta Eugenia and Isla Cedros, Mexico. Specimens were collected from March to July 1997 and from August to December 2003. Gonadal indexes from 2% to 4% suggest reproductive inactivity from March to May and from October to December. The su...

Knowledge of the reproductive cycle of marine invertebrates of economic importance is essential for management of natural stocks and to initiate aquaculture activities. The reproductive biology of Nodipecten subnodosus from Laguna Ojo de Liebre, B.C.S., Mexico, was studied during a period of 25 mo. N. subnodosus is a functional hermaphrodite in whi...

The impact of El Niño (1997-1998) and La Niña (1998-1999) on the reproductive cycle of the pearl oyster Pinctada mazatlanica was studied by histologic observation of gonads, determination of the conditioning index, and oocyte monthly mean diameter, which are related to sea surface temperature and availability of food. Available food was determined...

The monthly variation of the biochemical composition was studied for one year in relation to the reproductive cycle in a population of Spondylus leucacanthus, a commercially important species in the Gulf of California. Carbohydrate, lipid, and protein concentrations were determined in the adductor muscle, gonad, and digestive gland. Protein was the...

The reproductive cycle of Spondylus calcifer from Bahía de Loreto, Gulf of California, was studied from January 1998 to March 1999. Microscopic analyses established that this species is gonochoric. The size at spawning occurred at 113-mm in shell height. S. calcifer exhibits a short spawning period from August to October followed by a long inactive...

Morphological data from incidental captures in the Gulf of California of the spider crabs Maiopsis panamensis and Stenocionops ovata are presented. Sex ratios, carapace width and length distributions by sex, weight distribution by sex, and ovigerous female frequency are reported. New maximum values for the size of the branchial width of the carapac...

Se estableció el ciclo reproductivo del pargo lunarejo Lutjanus guttatus, un pez de gran importancia comercial. Los organismos se recolectaron mensualmente desde febrero de 1993 a diciembre de 1994. La proporción de sexos poblacional fue de 1M:0.96H y no se encontró una diferencia significativa (P£0,05) de la proporción esperada de 1:1. Las gónadas...

The reproductive cycle of the spotted rose snapper Lutjanus guttatus, a fish of great commercial importance was established. The organisms were sampled monthly from February 1993 to December 1994. The population sex ratio was 1M:0.96F and it was not a significant difference (P≤0.05) from the prospective proportion of 1:1. The gonads were histologic...

The stock assessment of the venus clam Chione californiensis from Ensenada de La Paz, Baja California Sur, México was made based on survey and commercial catch data. Stock is exploited twice a year, February to early April, and September and October. Elefan I was used to estimate growth parameters of the von Bertalanffy equation. Age structure was...

Se presentan datos morfológicos de los cangrejos araña Maiopsis panamensis y Stenocionops ovata obtenidos a partir de capturas incidentales realizadas en el Golfo de California. Se informan proporciones de sexo, distribuciones de talla por sexo, valores de anchura y longitud del caparazón, distribuciones de peso por sexo, y frecuencia de hembras ov...

This study describes, through monthly histological examinations of gonadal tissue samples, the reproductive cycle of Pinna rugosa and relates gametogenesis to temperature and photoperiod. Monthly gonadal samples were obtained from February 1993 to February 1994, in Bahia Concepcion, Gulf of California, Mexico. Five stages of gonadal development wer...

The reproductive cycle of Megapitaria squalida was described in Bahía Juncalito, Gulf of California from November 1995 to May 1997. Common histologic techniques were applied and general condition factor was calculated. The population sexual proportion was 1F:1M. The length range was 47.1-93.3 mm. Histologic analysis reveal that M. squalida is a gon...

The reproduction and growth of Isostichopus fuscus (Ludwig, 1875) at Isla Espíritu Santo, Baja California Sur, México from July 1992 to September 1993 and from August 1996 to July 1997 were analyzed. The reproductive cycle was monitored by using histological analysis. Five gonadal stages were described according to cell types present in the gonad;...

Aspects of the reproductive biology of Holacanthus passer, a valuable ornamental fish, were studied. Male and female specimens were collected monthly from June 1992 to May 1993 in the Gulf of California. The sex ratio differed significantly from 1:1 over the size range of the sample; females prevailed at small lengths and males at larger lengths. T...

The reproductive pattern of the rock shrimp (Sicyonia penicillata) was studied from January through December (1996) by sampling from boats twice a month (commercial shrimp fleet and one research cruise). Reproductive activity begins at 25 mm of tail length, but massive maturity or critical size is 55 mm of tail length. Mature organisms were found y...

The fecundity of the velvet spidercrab Stenocionops ovata from the Gulf of California was determined based on an incidental capture realized in the Gulf of California. Evidence suggested that adult females of S. ovata can produce more than one batch of eggs in a breeding cycle. The number of eggs per brood by S. ovata range from 35,187 eggs to 170,...

Chione cortezi is not a well known species of bivalve and has been reported with a distribution that includes the Gulf of California as far as Bahia Magdalena on the western coast of Baja California. Since there are no recent observations of this species outside the northern Gulf of California, two expeditions were done in search of this species in...

The reproductive pattern of the rock shrimp (Sicyonia penicillata) was studied from January through December (1996) by sampling from boats twice a month (commercial shrimp fleet and one research cruise). Reproductive activity begins at 25 mm of tail length, but massive maturity or critical size is 55 mm of tail length. Mature organisms were found y...

The reproductive cycle of Spondylus leucacanthus at Isla Danzante, Gulf of California was studied from January 1994 to January 1996. Microscopic analysis established that the female specimens had male gametes in the gonads during the starting of gametogenesis (April 1994, March 1995). The individuals were fully ripe from June, coinciding with the h...

The reproductive cycle of Periglypta multicostata (S.), was studied at Isla Espiritu Santo, Gulf of California, Mexico, from October 1992 to December 1993. The reproductive activity was present throughout the study period, except in February 1993, nevertheless a distinct seasonality was observed with three distinct peaks of spawning activity. A cle...

The Pacific Calico scallop, Argopecten ventricosus (Sowerby), is the most important commercial species in Bahia Concepcion. Catches declined steadily from 1991 to 1993 as a result of overexploitation, forcing the adoption of management measures. The Government has now established regulations for exploitation and scallop culture development. In 1994...

The annual reproductive cycle of the pearl oyster. Pinctada mazatlanica (Hanley), from Isla Espiritu Santo, B.C.S. Mexico, was examined Pearl oysters were collected at monthly intervals from June 1902 through August 1993. The gonadal development was analyzed by histological techniques and analysis of oocyte size. Spawning took place throughout the...

The reproductive cycle of the cockle Laevicardium elatum in Bahia Concepcion, B.C.S. Mexico, was studied from October 1988 to October 1990. Microscopic analysis established that L. elatum is a functional hermaphrodite with male and female follicles intermingled in the gonad. The development and spawning of male and female gametes were synchronous....

A study of the gastric contents of C. californiensis, C. gnidia, and C. undatella was performed. C. gnidia, distributed in the muddy bottom, had a gastric content composed of 71% phytoplankton and 19% vegetal detritus. The other two species, inhabitating sandy bottoms, had only phytoplankton in their gastric ducts. The greatest correspondence was a...

Adult clams Chione califomiensis (Broderip, 1835) were sampled monthly between May 1988 and September 1989, from intertidal populations in Puerto San Carlos, Bahía Magdalena, Baja California Sur. Gonadal development was monitored using standard histological methods. Observed gametogenic progression was categorized by five stages: inactive, gametoge...

Adult clams Chione califomiensis (Broderip, 1835) were sampled monthly between May 1988 and September 1989, from intertidal populations in Puerto San Carlos, Bahía Magdalena, Baja California Sur. Gonadal development was monitored using standard histological methods. Observed gametogenic progression was categorized by five stages: inactive, gametoge...

Adult clams Chione califomiensis (Broderip, 1835) were sampled monthly between May 1988 and September 1989, from intertidal populations in Puerto San Carlos, Bahía Magdalena, Baja California Sur. Gonadal development was monitored using standard histological methods. Observed gametogenic progression was categorized by five stages: inactive, gametoge...

The reproductive cycle of the spotted rose snapper Lutjanus guttatus, a fish of great commercial importance was established. The organisms were sampled monthly from February 1993 to December 1994. The population sex ratio was 1M:0.96F and it was not a significant difference (P≤0.05) from the prospective proportion of 1:1. The gonads were histologic...