Copper and Zinc Toxicity in Ephydatia fluviatilis (Porifera: Spongillidae)

Francis, John C.; Harrison, Frederick W.

doi:10.2307/3226409

Cited by 21 publications

(10 citation statements)

References 11 publications

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“…significant correlation was found between poly(P) level and adsorbable organic halogen compounds (AOX) value (r ϭ 0.439). It has been reported that certain metal ions (copper and zinc) are toxic in the freshwater sponge, Ephydatia fluviatilis, already at a low concentration of 1 ϫ 10 Ϫ7 M [37]. Interestingly, we determined that the poly(P) levels correlated also with the concentration of these metal ions (e.g., copper, r ϭ 0.920-0.935).…”

Section: Changes In Poly(p) Content After Exposure To Polluted Watermentioning

confidence: 49%

“…Previously we demonstrated that reduction body formation in E. muelleri can be induced by retinoic acid [28]. Tissue condensation and formation of reduction bodies can be observed also after exposure of sponges to polluted environments [27,37]. Chemical stressors initiating reduction body formation in freshwater sponges in polluted environments include Cu 2ϩ and Zn 2ϩ ions (at concentrations ex-ceeding 10 Ϫ7 M) and increased pH (pH 9.0) [27,37].…”

Section: Discussionmentioning

confidence: 94%

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Inorganic Polyphosphates in the Developing Freshwater Sponge Ephydatia Muelleri: Effect of Stress by Polluted Waters

Imsiecke¹,

Münkner²,

Lorenz³

et al. 1996

Environ Toxicol Chem

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Abstract-Relatively high amounts of inorganic polyphosphates (approximately 55 g of polyphosphate/g of wet weight) were found in the freshwater sponge Ephydatia muelleri, particularly in the gemmules (260 g/g). Here we report that the polyphosphate content of this sponge changes during development and in response to adverse environmental conditions. Germination and hatching of gemmules of E. muelleri is accompanied by a strong decrease (by 94% at day 2) in polyphosphate level and a rise in exopolyphosphatase activity. On the other hand, induction of gemmulogenesis by theophylline results in an increase (by 61%) in polyphosphate content of sponge tissue. An increase in polyphosphate content and a decrease in exopolyphosphatase activity also occur during tissue regression when hatched sponges are exposed to polluted water from river. Nonionic organic compounds extracted from this water were identified as contaminants causing a rise in polyphosphate content of E. muelleri. The results show that measurement of polyphosphate level may be a promising method to detect responses of the freshwater sponge to polluted waters.

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Section: Changes In Poly(p) Content After Exposure To Polluted Watermentioning

confidence: 49%

Section: Discussionmentioning

confidence: 94%

Inorganic Polyphosphates in the Developing Freshwater Sponge Ephydatia Muelleri: Effect of Stress by Polluted Waters

Imsiecke¹,

Münkner²,

Lorenz³

et al. 1996

Environ Toxicol Chem

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“…Exposure to 0.001 mg/L of cadmium or mercury causes distinct gemmosclere malformations and may inhibit gemmule formation (Mysing-Gubala and Poirrier 1981). Copper and zinc are toxic to sponge cells at micromolar concentrations (Francis and Harrison 1988).…”

Section: Hubitat and General Ecologymentioning

confidence: 99%

“…They are potentially valuable indiof accessible freshwater habitats and the wide range of ecocaters of water quality (Jewell 1935;Harrison 1974; Mysinglogical conditions in the region. To test this hypothesis, we Gubala and Poirrier 1981;Francis and Harrison 1988) and are obtained a large number of specimens collected from various useful tools in quantitative paleolimnological studies (Kratz parts of Ontario, Quebec, New Brunswick, Nova Scotia, and r i a l . 199 1).…”

Section: Introductionmentioning

confidence: 99%

Freshwater sponges (Porifera, Spongillidae) of eastern Canada: taxonomy, distribution, and ecology

Ricciardi¹,

Reiswig²

1993

Can. J. Zool.

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RICCIARDI, A., and REISWIG, H. M. 1993. Freshwater sponges (Porifera, Spongillidae) of eastern Canada: taxonomy, distribution, and ecology. Can. J. Zool. 71: 665 -682. During a recent survey of the freshwater sponges of eastern Canada (from Ontario to Newfoundland), 15 species were recorded, representing approximately 50% of the total number of species known from North America. Radiospongilla crureriformis, Spongillu uspinosa, and Trochospongilla horrida are reported from Canada for the first time. Two problematic species, Cowosporigillu novuererrue and Spongilla johunseni, are reviewed and their status is revised. Detailed notes on taxonomy, morphology, distribution, and ecology are given. New limits of tolerance with respect to pH, water temperature, and calcium and magnesium concentrations are established for several species. A taxonomic key to the freshwater sponges of eastern Canada is presented. RICCIARDI, A., et REISWIC, H. M. 1993. Freshwater sponges (Porifera, Spongillidae) of eastern Canada: taxonomy, distribution, and ecology. Can. J. Zool. 71 : 665 -682. Un inventaire recent des eponges d'eau douce de 1'Est canadien, de I'Ontario Terre-Neuve, indique la presence de 15 especes, soit environ 50% des especes connues en Amerique du Nord. Rcldiospongillrr crureriformis, Spongilla uspinosrr et Trochospongilla horrida sont signalees au Canada pour la premiere fois. Deux especes, qui presentaient des problemes taxonomiques, Cowospongilla novaererrae et Spongilla johanseni, ont fait l'objet d'une revision et leur status a ete amende.On trouvera aussi des notes detaillees sur la taxonomie, la morphologie, la repartition geographique et l'ecologie des especes. De nouvelles limites de tolerance au pH, a la temperature, au calcium et au magnesium sont notees chez plusieurs especes. Une clef permet l'identification des especes de 1'Est du Canada.[Traduit par la redaction]

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“…The uptake of Si by marine sponges is primarily as dissolved Si species [ Maldonado et al , 1999]. However, the sources of Zn for uptake by marine sponges are unknown, although it is assumed to be via dissolved species [ Patel et al , 1985; Francis and Harrison , 1988; Araujo et al , 1999]. To elucidate the major sources of Zn taken up by and incorporated into the silica spicules of marine sponges, we determined the Zn content of hexactinellid spicules from live‐collected specimens and sediment cores located in the SW Pacific.…”

Section: Introductionmentioning

confidence: 99%

Zinc/silicon ratios of sponges: A proxy for carbon export to the seafloor

Ellwood

Kelly²,

Nodder

et al. 2004

Geophysical Research Letters

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[1] Reconstruction of past carbon export events is difficult. Most proxies for carbon export suffer from problems related to remineralisation and diagenetic effects above, at and below the sediment-water interface. Here we demonstrate that deepsea hexactinellid sponges incorporate zinc (Zn) into their silica skeletons in a direct relationship with the amount of particulate organic carbon (POC) accumulating in sediments. Such a relationship suggests that Zn incorporation into siliceous sponge spicules is from Zn associated with particulate organic matter (POM) 'raining down' from overhead waters. The dissolved Zn pool does not appear to be a major Zn source to deep-ocean sponges. Likewise, water temperature and pressure do not appear to strongly influence Zn incorporation into sponge silica. These results suggest that the Zn to silicon (Si) ratio of deep ocean sponges could serve as a useful proxy for reconstructing past POC burial events.

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Copper and Zinc Toxicity in Ephydatia fluviatilis (Porifera: Spongillidae)

Cited by 21 publications

References 11 publications

Inorganic Polyphosphates in the Developing Freshwater Sponge Ephydatia Muelleri: Effect of Stress by Polluted Waters

Inorganic Polyphosphates in the Developing Freshwater Sponge Ephydatia Muelleri: Effect of Stress by Polluted Waters

Freshwater sponges (Porifera, Spongillidae) of eastern Canada: taxonomy, distribution, and ecology

Zinc/silicon ratios of sponges: A proxy for carbon export to the seafloor

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