Banks of the coral Cladocora caespitosa (Anthozoa, Scleractinia) in the Adriatic Sea

Kružić, Petar; Požar‐Domac, Antonieta

doi:10.1007/s00338-003-0345-y

Cited by 56 publications

(42 citation statements)

References 2 publications

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“…It forms subspherical colonies or large banks characterized by packets of distinct corallites, each having their own separate wall and growing in a continuous rectilinear way. The growth rate ranges from 1.3 mm/yr (Peirano et al 1999) to 6.2 mm/yr (KružiÊ and Požar-Domac 2003). C. caespitosa shows clear annual banding with low-density bands formed in summer and high-density bands in winter (Peirano et al 1999).…”

Section: Coralmentioning

confidence: 99%

A High-Resolution Coral-Based Δ14C Record of Surface Water Processes in the Western Mediterranean Sea

Tisnérat‐Laborde

Montagna

McCulloch³

et al. 2013

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ABSTRACT. The first high-resolution time series of pre-and post-bomb radiocarbon measurements is reported for surface waters in the western Mediterranean Sea. The  14 C record was obtained from the aragonite skeleton of Cladocora caespitosa using a 50-yr-old corallite collected in the Ligurian Sea in 1998. Laser-ablation ICP measurements of trace elements (Li/Mg and Sr/Ca) show a strong seasonal variability, enabling the chronology of the  14 C record to be determined at annual timescales. The mean  14 C of pre-bomb surface water is -56 ± 3‰, corresponding to a reservoir age of 262 ± 29 yr. The postbomb maximum occurs in 1972 with a  14 C value of 90‰, significantly lower than the peak of 150‰ observed in the North Atlantic. The dilution of the peak-amplitude of  14 C in western Mediterranean surface waters is attributed to mixing of North Atlantic Central Water inflow with relatively depleted underlying Intermediate Mediterranean and Levantine Intermediate waters. Intensification of this mixing is observed in 1963-1964, consistent with the change in atmospheric circulation from a positive to negative NAO phase (1960)(1961)(1962)(1963)(1964)(1965)(1966)(1967). The post-peak  14 C variability is relatively limited, reflecting mainly local vertical mixing forced by wind stress.

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Section: Coralmentioning

confidence: 99%

A High-Resolution Coral-Based Δ14C Record of Surface Water Processes in the Western Mediterranean Sea

Tisnérat‐Laborde

Montagna

McCulloch³

et al. 2013

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“…The bank grows in a semi-enclosed coastal lagoon that maintains water exchange with the open Adriatic Sea through a 4.5 m deep channel. In this lagoon, SST vary between 9 and 29°C and salinity shifts from 36.3 to 39 PSU (Vanibek et al 2000;KruqiT and Poqar-Domac 2003). Although the Santa Teresiola reef refers to a warm climatic phase of the Pleistocene, the diVerences between the temperature of the lagoon and the warmer open-sea temperatures of MISs 5.5 could be explained by freshwater coming from underwater, karstic springs that are common today both in Croatia and in the Taranto area (Pagliarulo and Bruno 1990;KruqiT and BenkoviT 2008).…”

Section: Discussionmentioning

confidence: 97%

“…The greatest bank is located in one 'sea-lake' of the island of Mljet. This bank consists of some hundreds of C. caespitosa colonies, which are fused together and cover 650 m 2 on the seabed in 4-18 m water depth (KruqiT and Poqar-Domac 2003).…”

Section: Introductionmentioning

confidence: 99%

Growth of Mediterranean reef of Cladocora caespitosa (L.) in the Late Quaternary and climate inferences

Peirano

Kružić

Mastronuzzi

2009

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A sclerochronological analysis was performed on Cladocora caespitosa corals from Late Pleistocene terraces near Taranto (Apulia, Italy) to reconstruct the main palaeoenvironmental conditions at the time of their growth. The fossil corallites were sampled in the Santa Teresiola uplifted bank or 'open frame reef' attributed to the Last Interglacial Period. The typical, annual growth pattern of the temperate coral with two alternate high-and low-density bands allowed the reconstruction of two multidecadal growth curves of 61 and 95 years. Trend analysis showed oscillations in annual growth rates similar to those observed in recent, living colonies sampled along a north-south latitudinal transect around the Italian and Croatian coasts as far as Tunisia. The mean growth rate of the fossil reef (4.2 § 2 mm year ¡1 ) is comparable to those measured on colonies living in the coldest part of the Mediterranean Sea. The comparison with data from living Croatian banks shows how fossil C. caespitosa lived in a semi-enclosed environment characterized by seasonal inputs of fresh, cold water. The greatest variations in decadal growth rates of the fossil colonies support the hypothesis of larger amplitude of the seasonal cycles in the past. The death of the fossil bank was probably due to a sudden alluvial input that suVocated the reef with a great amount of mud. Another possible cause of the death of the bank was a prolonged increase in summer temperatures that caused colony mortality and enhanced algal colonization.

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“…C. caespitosa lives in coastal waters, is confined to the euphotic zone, from depths of a few metres to 40 m (Morri et al, 1994), and is found on both rocky and sandy bottoms. It forms either a large number of subspherical colonies (10 to 30 cm in diameter) or massive formations reaching some decimeters in height and covering areas of several square meters (Peirano et al, 1998;Morri et al, 1994, Kühlmann, 1996Schiller, 1993;Kružiae & Požar-Domac, 2003). Colonies are characterized by distinct corallites, each having its own wall, independent of the others and growing in a continuous rectilinear way, with growth rates ranging from 1.30 mm/year (Peirano et al, 1999) to 6.2 mm/year (Kružiae & Požar-Domac, 2003).…”

Section: Shallow-water Organismsmentioning

confidence: 98%

Climate reconstructions and monitoring in the Mediterranean Sea: A review on some recently discovered high-resolution marine archives

Montagna

Silenzi

Devoti

et al. 2008

Rend. Fis. Acc. Lincei

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Palaeoclimate records are important tools for understanding climate modifications and contextualizing recent anthropogenic perturbations in climate change relative to natural variability in the Earthclimate system. \ud Moreover, time-series proxy records of the main physical and chemical parameters in marine and continental environments are increasingly used for testing climate models in order to ascertain the reliability of projections for future scenarios in our greenhouse modified Earth. \ud In order to account for the limited number of continuous instrumental measurements of climatic variables in the past, such as sea surface temperature (SST), salinity (SSS), sea-level fluctuations and water chemistry, a complementary approach is the examination of geochemical tracers (i. e. trace elements and stable isotopes) in well-dated natural marine archives. \ud \ud Recently, the Mediterranean Sea has been the focus of a number of studies where new high resolution climate archives have been investigated utilizing proxies for sea surface temperature, salinity, marine chemistry, and ocean circulation, different to those available for tropical regions. In particular, vermetids (Dendropoma petraeum), non-tropical zooxanthellate corals (Cladocora caespitosa) and cold-water corals (Desmophyllum dianthus, Lophelia pertusa and Madrepora oculata) have been studied by conventional and advanced analytical techniques (e. g., laser ablation ICP-MS, MC-ICP-MS, synchrotron X-ray fluorescence) and have been successfully used as high-resolution palaeoenvironmental proxies. Vermetid reefs have the potential to yield valuable information on past sea-level changes and SST, through the combination of stable isotopes and radiocarbon dating. The trace element concentration, in combination with U-series and radiocarbon dating, of the skeletal aragonite of the Mediterranean zooxanthellate coral Cladocora caespitosa, and of the coldwater corals Desmophyllum dianthus and Lophelia pertusa, has been successfully demonstrated to be a valid high-resolution SST archive, and a seawater chemistry and ocean circulation proxy, respectively. Here we present a review of our research over the last few years, aiming for the establishment of new natural marine archives collected from various sites of the Mediterranean Sea, reporting on our methodological approaches and main results

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Banks of the coral Cladocora caespitosa (Anthozoa, Scleractinia) in the Adriatic Sea

Cited by 56 publications

References 2 publications

A High-Resolution Coral-Based Δ14C Record of Surface Water Processes in the Western Mediterranean Sea

A High-Resolution Coral-Based Δ14C Record of Surface Water Processes in the Western Mediterranean Sea

Growth of Mediterranean reef of Cladocora caespitosa (L.) in the Late Quaternary and climate inferences

Climate reconstructions and monitoring in the Mediterranean Sea: A review on some recently discovered high-resolution marine archives

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