Seasonal changes of the copper level in shore crabs Carcinus mediterraneus

Devescovi, Massimo; Lucu, Čedomil

doi:10.3354/meps120169

Cited by 24 publications

(11 citation statements)

References 22 publications

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“…Previous studies on American lobsters have shown that haemocyte number and haemolymph protein concentration may be used as indices of muscle weight (Stewart et al 1967, Castell & Budson 1974. Moreover, haemolymph protein or copper concentration were proposed as predictors for the haemolymph space in other crustaceans (Dall 1974, Smith & Dall 1982, Devescovi & Lucu 1995. The results of the present investigation, based on haemolymph copper levels in field-collected European lobsters, confirm these findings.…”

Section: Discussionsupporting

confidence: 87%

“…Additionally, the haemolymph protein concentration was proposed as an index of haemolymph volume in the western rock lobster Panulirus longipes (Dall 1974) and the penaeid prawn Penaeus esculentus (Smith & Dall 1982). Haemolymph copper concentration is also a reliable indicator of the haemolymph volume in intermoult shore crabs Carcinus aestuarii (reported as C. mediterraneus: Devescovi & Lucu 1995).…”

Section: Introductionmentioning

confidence: 99%

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Growth of tissues related to haemolymph copper throughout the moult cycle of the lobster Homarus gammarus

Devescovi

Lucu²

2003

Mar. Ecol. Prog. Ser.

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ABSTRACT:The relationship between tissue weights and haemolymph copper levels in fieldcollected European lobsters Homarus gammarus was investigated to assess whether haemolymph copper concentration can be used to reliably determine nutritional condition in lobsters. During the moult cycle, the soft tissue weight (mostly muscle) increased concomitantly with a decrease in haemolymph weight while exoskeleton weight increased from postmoult to intermoult. Haemolymph copper concentration gradually increased from postmoult to premoult with a range of 29.7 (Stage B) to 163.5 µg g -1 wet weight (ww) (Stage D 0 ). Our measurements suggest that the main processes that increase haemolymph copper concentration is a reduction in haemolymph space and an increase in haemolymph copper content, indicating synthesis of new haemocyanin for the oxygen supply of growing tissues. During the moult cycle, haemolymph copper content was proportional to soft tissue mass and amounted to 43.6 µg Cu g -1 of soft-tissue ww (95% confidence limits = 35.5 and 51.6 µg g

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Section: Discussionsupporting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Growth of tissues related to haemolymph copper throughout the moult cycle of the lobster Homarus gammarus

Devescovi

Lucu²

2003

Mar. Ecol. Prog. Ser.

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“…It is also known that metal concentrations in adult crabs vary seasonally. For example, decreased whole‐body Cu content in winter has been observed for Carcinus mediterraneus , a phenomenon that was related to a significant decrease of food intake in winter [29].…”

Section: Resultsmentioning

confidence: 99%

Accumulation of silver from the diet in two marine benthic predators: The snow crab (Chionoecetes opilio) and American plaice (Hippoglossoides platessoides)

Rouleau

Gobeil

Tjälve

2000

Enviro Toxic and Chemistry

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The kinetics and fine‐scale tissue distribution of a single dose of 110mAg ingested with food were determined in snow crab and American plaice through the techniques of in vivo gamma counting and whole‐body autoradiography. Metal that was retained after the first 3 d was distributed in all the soft tissues of snow crab, whereas it concentrated in gut, liver, and gallbladder of the American plaice. In snow crab, the biological half‐life of retained Ag, which represented 67–100% of the ingested dose, was greater than 1000 d. In contrast, in American plaice the retained fraction represented only 4–16% of the ingested dose and the biological half‐life ranged from 13 to 102 d. Modeling the trophic accumulation of Ag for snow crab and American plaice living in the St. Lawrence Estuary, assuming realistic values for food ingestion rates and Ag concentration in benthic organisms of lower trophic levels, reveals that continuous feeding on Ag‐contaminated prey would result in much higher metal levels in the snow crab than in the American plaice. Measurement of Ag concentrations in snow crab and American plaice from the St. Lawrence Estuary, an environment receiving significant inputs of anthropogenic Ag, confirmed this prediction. The similarity between laboratory‐based predictions and field data strongly suggests that predation is the major transfer route of Ag towards these marine benthic predators.

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“…Ello podría ser debido además de tratarse de especies distintas, a que fueron experiencias llevadas a cabo en condiciones ambientales diferentes (por ejemplo, temperatura). Es conocido que la absorción de cobre se incrementa en relación directa con la temperatura (Blust et al, 1994) y por otra parte, el contenido de cobre tanto en la hemolinfa como en el hapatopáncreas decrece durante el invierno, como ha sido determinado en Carcinus mediterraneus por Devescovi y Lucu (1995). También se ha demostrado que la toxicidad del cadmio y del cobre puede estar más relacionada a la actividad de los iones libres que a la concentración total de los metales (Sunda y Lewis, 1978;Department of Energy, 1987).…”

Section: Discusionunclassified

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

Scelzo

1997

Investig. mar.

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RESUMEN. Se evaluó la toxicidad del cobre, empleando sulfato de cobre en larvas nauplii sin alimentar del camarón comercial Artemesia longinaris mediante bioensayos de 72 horas de duración, con el objeto de determinar la dosis efectiva media o concentración letal (LC50) y grado de desarrollo (estadio larval). Se prepararon concentraciones de cobre equivalentes a 1000, 500, 250 y 125 partes por billón (ppb) en agua de mar (salinidad de 34 %). Un total de 90 larvas nauplii por tratamiento (tres réplicas de 30 larvas c/u) fueron acondicionadas en recipientes de vidrio con 300-500 ml de cada solución. Como control se empleó agua de mar con EDTA. Los resultados del test de toxicidad aguda mostraron una relación directa entre mortalidad y concentración de cobre. A una concentración de 1000 ppb, los nauplii mueren en menos de 24 hr. Los valores de LC50 para los diferentes períodos de los restantes tratamientos según el método de probits fueron: 660 ppb para 24 hr, 378,5 ppb para 48 hr y 212,3 ppb para 72 hr. La muda (crecimiento) de las larvas fue inhibida a concentraciones superiores a 125 ppb. En el «control», las larvas mudaron a protozoea a partir de las 72 hr y todas las larvas se encontraron en este estadio a las 96 hr.

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Seasonal changes of the copper level in shore crabs Carcinus mediterraneus

Cited by 24 publications

References 22 publications

Growth of tissues related to haemolymph copper throughout the moult cycle of the lobster Homarus gammarus

Growth of tissues related to haemolymph copper throughout the moult cycle of the lobster Homarus gammarus

Accumulation of silver from the diet in two marine benthic predators: The snow crab (Chionoecetes opilio) and American plaice (Hippoglossoides platessoides)

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

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