Toxicidad del cobre en larvas nauplii del camarón comercial Artemesia longinaris Bate (Crustacea, Decapoda, Penaeidae)

Scelzo, Marcelo A.

doi:10.4067/s0717-71781997002500013

Cited by 17 publications

(18 citation statements)

References 19 publications

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“…Copper toxicity for L. santolla was in the same order of magnitude as in other crustacean larvae ( Munshi et al, 1996;Ramachandran et al, 1997;Scelzo, 1997;López Greco et al, 2001;Ferrer et al, 2003). Copper was one order of magnitude more toxic than other metals assayed on the same species and larval stage, resulting in the following relative scale of acute lethal toxicity: Cu>Pb>Cd>Zn (Amin et al, 2003).…”

Section: Discussionmentioning

confidence: 92%

Effects of copper on the physiological responses of the commercial crab <i>Lithodes santolla</i> (Decapoda: Anomura) larvae

Amin¹,

Comoglio²

2010

Sci. Mar.

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SUMMARY: Effects of copper toxicity on zoea I of Lithodes santolla (Decapoda: Anomura) were analysed. The 96-h LC 50 was estimated, resulting in 298.5 µg L -1 . Groups of larvae were exposed to sublethal concentrations (40, 80 and 160 µg L -1 ) for 96 h. Oxygen consumption, ammonia excretion, O:N atomic ratio, lipid peroxidation (LPO) and body water content were measured. Oxygen consumption of treated groups (mean 46.92 ± 8.03 µg-atom O 2 h -1 mg -1 ) did not differ significantly with control. Ammonia excretion decreased by 60% at higher Cu concentration (1.61 ± 0.65 µg-atom N-NH 3 h -1 mg -1 ), leading to a 117% increase in the O:N ratio. LPO values during the exposure time were higher in all treatments than in the controls. The water content was significantly higher in treatments than in controls. The highest concentration assayed, which represents about 50% of 96-h LC 50 , had evident effects on the parameters analysed. The values of copper in water reported for the coastal zone of Ushuaia bay exceed the value established by the United States Environmental Protection Agency (USEPA) for ambient water quality criteria. Therefore, the results obtained in the present study are a contribution to the study of potential effects of copper as a common stressor in the first larval stage of this commercial species of the Beagle Channel.Keywords: crustacean larvae, oxygen consumption, ammonia excretion, O:N atomic ratio, lipid peroxidation, copper. RESUMEN: Impacto del cobre sobre las respuestas fisiológicas de la larva del cangrejo comercial Lithodes santoLLa (Decápoda: Anomura). -Los efectos de la toxicidad del cobre sobre la zoea I de Lithodes santolla (Decapoda: Anomura) fueron analizados. La CL50 96-h fue estimada en 298,5 µg L -1 . Grupos de larvas fueron expuestos a concentraciones subletales (40; 80 y 160 µg L -1 ) durante 96 horas. El consumo de oxígeno, excreción de amonio, relación atómica O:N, lipoperoxidación (LPO) y contenido de agua corporal fueron medidos. El consumo de oxígeno de los grupos tratados (media 46.92 ± 8.03 µg-átomo O 2 h -1 mg -1 ) no difirió significativamente del control. La excreción de amonio disminuyó un 60% en la mayor concentración de Cu (1.61 ± 0.65 µg-átomo N-NH 3 h -1 mg -1 ) produciendo un incremento del 117% en la tasa O:N. Los valores de LPO a lo largo de la exposición fueron mayores en todos los tratamientos respecto al control. El contenido de agua corporal fue mayor en los tratamientos que en el control. La mayor concentración ensayada, que representa alrededor del 50% de la CL50 96-h estimada produjo efectos evidentes sobre los parámetros analizados. Los valores de cobre en agua reportados para la zona costera de bahía Ushuaia exceden los establecidos por la Agencia de Protección Ambiental de Estados Unidos (USEPA) como criterio de calidad ambiental. Por esta razón, los resultados obtenidos en el presente estudio se convierten en una contribución sobre el impacto potencial del cobre como un estresor común durante el primer estadio larval de esta importante especie comercial ...

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Section: Discussionmentioning

confidence: 92%

Effects of copper on the physiological responses of the commercial crab <i>Lithodes santolla</i> (Decapoda: Anomura) larvae

Amin¹,

Comoglio²

2010

Sci. Mar.

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“…Water in experimental tanks was filtered (5 μm) and passed through a UV lamp. To prevent diseases, parasites or bad water quality, water was treated with the following chemicals: EDTA (0.5 mg L -1 ; Scelzo, 1998), iodine (dissolved at 1.75%), calcium hydroxide (20 mg L -1 ; Mallo & Fenucci, 2004), copper sulfate (125 mg L -1 ; Scelzo, 1997), formaldehyde (1×10 -5 ppt; Hernández-Valencia, 2010) and sulfamethoxazoletrimethoprim (4×10 -2 ppt; 23,750 mg +1,250 mg; Laganà et al, 2011). A 5 hp blower (Sweetwater®, Apopka, FL, USA) and diffusers were used to maintain continuous aeration.…”

Section: General Proceduresmentioning

confidence: 99%

Experimental culture of the river prawn Macrobrachium americanum larvae (Bate, 1868), with emphasis on feeding and stocking density effect on survival

Yamasaki-Granados

Garcı́a-Guerrero

Vega-Villasante

et al. 2013

lajar

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ABSTRACT. The cauque river prawn Macrobrachium americanum occurs along the Pacific coast of America. This prawn can grow to a large size, making it an interesting option for aquaculture production. Currently, supplies of juveniles are limited because hatchery and laboratory-reared larvae are difficult to raise. This study assesses larval survival for different combinations of stocking density and feeding from larvae cultivated in green water. From these combinations, larvae fed with Artemia nauplii and maintained at a density of 50 larvae L -1 had the highest survival.Keywords: Macrobrachium americanum, larval development, feeding, survival, prawn.Cultivo experimental de larvas de langostino Macrobrachium americanum (Bate, 1868), con énfasis en alimentación y efecto de la densidad sobre la supervivencia RESUMEN. El langostino de río Macrobrachium americanum, ocurre a lo largo de la costa Pacífica de América. Este langostino puede alcanzar grandes tallas lo que lo convierte en una opción interesante para la acuicultura. En la actualidad, el abastecimiento de juveniles a partir del cultivo de sus larvas en hatchery y en laboratorio son difíciles de criar. Este estudio evalúa la supervivencia de las larvas con diferentes combinaciones de alimento y densidades de población cultivadas en agua verde. A partir de estas combinaciones, las larvas alimentadas con nauplios de Artemia salina, mantenidas a una densidad de 50 larvas L -1 , tuvieron la mayor supervivencia.Palabras clave: Macrobrachium americanum, desarrollo larvario, alimentación, supervivencia, langostino.

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“…First, biologically active copper has remained chronically high in Caleta Palito and surroundings due to the mine tailing discharge (Andrade et al 2006) and to the re-suspension of old coastal sediment. Second, although copper is an essential micronutrient for normal growth and development (Lesser 2006), and in decapods it is a fundamental component of hemocyanin, excessive amounts of this metal are lethal to crustaceans (Scelzo 1997). Different authors have reported a gradual loss of the osmoregulatory function and diminished gas exchange in decapod crustaceans when exposed to increasing concentrations of copper (Spicer & Weber 1992).…”

Section: Discussionmentioning

confidence: 99%

Intraspecific biogeographic pattern breakage in the snapping shrimp Betaeus emarginatus caused by coastal copper mine tailings

Lardies¹,

Medina²,

Correa³

2008

Mar. Ecol. Prog. Ser.

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Environmental gradients are common in nature, and geographically widespread species must cope with environmental differences between habitats. Environmental differences produce biogeographic patterns that can involve morphological, physiological, and life-history traits. The Bergmann's rule has been described as one of these ecological and evolutionary patterns, predicting an increase in body size towards colder climates. Human-induced polluting events could impair the performance and/or fitness of exposed individuals and populations. Thus, we hypothesized that species undergoing exposure to pollutants will show a breakage of the natural biogeographical variation of their fitness-related life-history traits. In northern Chile, copper mine tailings have been dumped continuously for more than 60 yr. Because the snapping shrimp Betaeus emarginatus is commonly found in intertidal pools near this dumping site, it was used as a study model. This shrimp has a pelagic larva and a wide distribution along the Chilean coast. Different life-history traits were studied in 5 populations over a range of 19 degrees of latitude along the Chilean coast. Population mean values for female body mass, egg volume, and reproductive output were positively correlated with latitude. In contrast, egg number was negatively correlated with latitude and positively correlated with temperature. Shrimps from the dumping site showed life-history trait values significantly lower than the range observed in areas with no copper enrichment, breaking the biogeographical patterns predicted by the Bergmann's rule. Such studies emphasize the need for integrating different concepts of organism and population ecology and life-history theory in the assessment of anthropogenic pollution.KEY WORDS: Copper · Life-history traits · Biogeography · Intertidal rocky shore · Reproductive output · Chile 358: 203-210, 2008 altitudes); and (2) the converse Bergmann's rule (Mousseau 1997), which states that in annual ectotherms the increase in body size is observed towards lower latitudes. Resale or republication not permitted without written consent of the publisherMar Ecol Prog SerFor marine invertebrates, 2 rules have been specifically described, both closely related to individual fitness: (1) Thorson's rule (Thorson 1950), which establishes a shortening of the larval phase towards the poles; and (2) Clarke's postulate (Clarke 1987), which predicts an increase in reproductive output towards lower latitudes. These rules have been observed in different environments and in diverse spatial scales. At both intraspecific and interspecific levels, the mechanisms underlying these patterns remain unknown, and are currently subject for debate in several areas of biology (Blanckenhorn & Demont 2004).Human-induced polluting events can exert different effects on exposed individuals and/or populations, generating changes in community structure and ecosystem functioning (Parker et al. 1999). According to Medina et al. (2007), depending on the level and duration of the ...

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Toxicidad del cobre en larvas nauplii del camarón comercial Artemesia longinaris Bate (Crustacea, Decapoda, Penaeidae)

Cited by 17 publications

References 19 publications

Effects of copper on the physiological responses of the commercial crab <i>Lithodes santolla</i> (Decapoda: Anomura) larvae

Effects of copper on the physiological responses of the commercial crab <i>Lithodes santolla</i> (Decapoda: Anomura) larvae

Experimental culture of the river prawn Macrobrachium americanum larvae (Bate, 1868), with emphasis on feeding and stocking density effect on survival

Intraspecific biogeographic pattern breakage in the snapping shrimp Betaeus emarginatus caused by coastal copper mine tailings

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