Sublethal effects of contamination on the Mediterranean sponge Crambe crambe: metal accumulation and biological responses

Cebrián, Emma; Martí, Ruth; Uriz, J.M; Turon, Xavier

doi:10.1016/s0025-326x(03)00190-5

Cited by 80 publications

(67 citation statements)

References 34 publications

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“…Exposure to copper negatively affects the reproductive success of other marine 4 organisms, such as sponges (Cebrian et al, 2003) amphipods (Conradi and Depledge, 5 1998) and polychaetes (Xie et al, 2005). However the flatworms used in this study 6 appear to be more sensitive than other marine invertebrates.…”

Section: Reproductive Success Of Stylochus Pygmaeus 12mentioning

confidence: 82%

Low levels of copper reduce the reproductive success of a mobile invertebrate predator

Lee

Johnston

2007

Marine Environmental Research

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Section: Reproductive Success Of Stylochus Pygmaeus 12mentioning

confidence: 82%

Low levels of copper reduce the reproductive success of a mobile invertebrate predator

Lee

Johnston

2007

Marine Environmental Research

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“…Only on 1 sampling date was a difference of 0.5°C observed. Other environmental parameters of the harbour and the adjacent habitats outside it have been studied by Cebrian (2001). Her findings can be summarised as follows: irradiance was slightly higher inside the harbour than at the outside (371 ± 26.04 µE m -2 s -2 and 439 ± 31.4 µE m -2 s -2 , mean ± SE, respectively).…”

Section: Methodsmentioning

confidence: 93%

“…The inner population accumulated significantly more Cu and Pb (between 5 and 10 times more) and the differences were consistently higher in December than in April 2000. The betweenhabitat differences in metal concentration in tissues were much higher than those found in the corresponding water column (Cebrian 2001), which suggests that ascidians inside the harbour incorporate heavy metals by filtering resuspended sediments, which are much richer in metals than the surrounding water (Pinedo 1998).…”

Section: Discussionmentioning

confidence: 99%

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Contrasting biological traits of Clavelina lepadiformis (Ascidiacea) populations from inside and outside harbours in the western Mediterranean

Caralt¹,

López‐Legentil²,

Tarjuelo³

et al. 2002

Mar. Ecol. Prog. Ser.

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Clavelina lepadiformis is a colonial ascidian found in harbour and rocky littoral habitats. The populations of these 2 habitat types in the Western Mediterranean showed marked genetic differences in mtDNA sequence data in previous works. However, no morphological differences between the forms inhabiting the 2 habitat types have been found. Here, we compared the biology and accumulation of heavy metals in populations of both habitats in NE of Spain. Abundance and seasonal cycles showed contrasting trends in the 2 habitat types: harbour populations reached densities of ca. 3900 zooids m -2 and active colonies were found all year round. Abundance in the rocky littoral environment was 1 order of magnitude lower and showed a clear seasonal pattern, with the disappearance of zooids during summer (aestivation). Reproductive cycles also differed, as larvae were present in the harbour population from November through June, with several sexual cycles during this period. In contrast, in the open littoral, larval occurrence was restricted to 2 to 3 mo during winterspring, with only 1 gonadal cycle yr -1. The zooids and larvae of the harbour were significantly larger. However, neither the total reproductive effort, tunic production (in weight ratios) nor fecundity significantly differed between these habitats. The harbour population accumulated significantly more Cu and Pb, and heavy metal concentrations showed a seasonal cycle with minima in summer. On the other hand, both populations accumulated a similar amount of V, a metal involved in ascidian metabolism. The production of secondary metabolites and the toxicity of polar extracts were higher in the open littoral form. These results, however, did not correlate with the outcome of palatability tests carried out with specialist and generalist predators, in which no preference was observed. Experimental juvenile transplantation between habitats showed that newly settled individuals from the rocky littoral habitat can survive in both environments (with survival rates of 30 to 50% during the first 4 wk), while those from harbours show low survivorship when moved out (ca. 5% survival after 4 wk). We conclude that there was a marked ecophenotypic variation between populations of both habitat types.

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“…Bryozoans, in particular their larval stage, are sensitive to metals (Wisely & Blick 1967, Henry et al 1989, with reduced survivorship of recruits after exposure to dissolved metals (Ng & Keough 2003). Temperate sponges are also sensitive to metals, which can affect their growth, fecundity and survival (Cebrian et al 2003). Sponges filter large volumes of water and accumulate and exhibit toxic responses to metals (Patel et al 1985, Hansen et al 1995.…”

Section: Human Impactsmentioning

confidence: 99%

Patterns of higher taxon colonisation and development in sessile marine benthic assemblages at Casey Station, Antarctica, and their use in environmental monitoring

Stark¹

2008

Mar. Ecol. Prog. Ser.

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Colonisation and development of sessile epibiotic assemblages on tiles was studied at Casey Station, East Antarctica, using a mix of higher taxon classifications (family to phylum). Tiles were deployed for 1 and 3 yr at 3 control and 2 impacted locations. Assemblages on upper and lower surfaces of tiles were very different, with little colonisation of upper surfaces (0 to 11% after 3 yr) and extensive colonisation of lower surfaces (60 to 91% after 3 yr), which is greater than previously reported from Antarctica. Hypotheses were tested relating to spatial variation, depth, human impacts (a sewage outfall and a waste disposal site) and period of deployment. Differences between control locations were only apparent after 3 yr, but there were significant differences between control and impacted locations after 1 yr. There were differences between assemblages at 7 to 10 m and 19 to 22 m. Assemblages were initially dominated by spirorbid polychaetes and bryozoans, but by 3 yr there was significant sponge cover at some locations. Both impacted locations had significantly greater cover on upper surfaces than controls. The waste disposal site had the least cover on lower surfaces, with almost no sponge and less bryozoans than controls. The outfall had the greatest cover on the lower surfaces, the greatest cover of spirorbids and sponges but the least cover of bryozoans. Higher taxa assemblage patterns of colonisation on settlement panels are potentially useful as a medium-to long-term monitoring tool for sheltered Antarctic nearshore waters. KEY WORDS: Marine benthos · Colonisation · Settlement panels · Environmental impact · Assemblage succession · MonitoringResale or republication not permitted without written consent of the publisher

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Sublethal effects of contamination on the Mediterranean sponge Crambe crambe: metal accumulation and biological responses

Cited by 80 publications

References 34 publications

Low levels of copper reduce the reproductive success of a mobile invertebrate predator

Low levels of copper reduce the reproductive success of a mobile invertebrate predator

Contrasting biological traits of Clavelina lepadiformis (Ascidiacea) populations from inside and outside harbours in the western Mediterranean

Patterns of higher taxon colonisation and development in sessile marine benthic assemblages at Casey Station, Antarctica, and their use in environmental monitoring

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