Proliferation and demise of deep-sea corals in the Mediterranean during the Younger Dryas

McCulloch, Malcolm T.; Taviani, Marco; Montagna, Paolo; Correa, Matthias López; Remia, Alessandro; Mortimer, Graham

doi:10.1016/j.epsl.2010.07.036

Cited by 84 publications

(65 citation statements)

References 51 publications

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“…Rogerson et al (2008) show a shoaling of the interface between these light (intermediate) and dense (deep) waters during the time of deglaciation suggesting that the preferential depths of cold-water coral growth decreased. McCulloch et al (2010) discuss a decrease in salinity (and therefore seawater density) during the YD and post-YD periods as glacial freshwater input made conditions more conducive for cold-water corals to develop. Nevertheless, as pointed out by Dullo et al (2008) seawater density alone does not define the occurrence of deep-sea corals; other, closely related parameters such as nutrient levels are of importance (McCulloch et al, 2010).…”

Section: Similarities and Differences Of Faunal Assemblages Between Tmentioning

confidence: 99%

“…A few cores contained intervals characterized by cold-water coral fragments. Coldwater corals have been identified in the Mediterranean Sea since the 60s (see McCulloch et al, 2010 and reference therein). However, only recently their full extent and distribution has been mapped.…”

Section: Introductionmentioning

confidence: 99%

“…However, only recently their full extent and distribution has been mapped. McCulloch et al (2010) have compiled a data set summarizing the occurrence of cold-water coral from the Eastern to the Western Mediterranean according to their age and paleoenvironment. In this study, the westernmost analyzed cores were in the Eastern Alboran Sea.…”

Section: Introductionmentioning

confidence: 99%

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Growth and demise of cold-water coral ecosystems on mud volcanoes in the West Alboran Sea: The messages from the planktonic and benthic foraminifera

et al. 2011

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The Dhaka and Maya mud volcanoes (MVs), located in the Mud Diapir Province in the Western Alboran Basin along the Moroccan Coasts, were cored during the TTR-17, Leg 1 cruise. Cores were taken on the top of the volcanoes at a water depth of 370 m on the Dhaka MV (core TTR17-MS411G) and at 410 m water depth on the Maya MV (core TTR17-MS419G), respectively. On both mud volcanoes the extruded mud breccia provides the nucleation point for the colonization and development of cold-water corals and associated ecosystems. Two phases of cold-water coral growth are observed: (1) between slightly older than 4175± 62 years BP and around 2230± 59 years BP at Dhaka, and (2) between slightly older than 15583 ± 185 years BP and around 7613 ± 38 years BP at Maya MV. On the top of the Maya MV only a small patch reef and/or isolated corals proliferated, whereas a more extended patch reef colonized the top of the Dhaka MV. At both sites the cold-water coral development was triggered by the availability of a suitable substrate for initial coral settling, provided either as a firm ground or as single clasts. Subsequently coral growth was supported by enhanced nutrient flux possibly related to upwelling and/or strong currents. During the intervals of coral growth planktonic foraminiferal assemblages were dominated by Neogloboquadrina incompta. The decline of coral ecosystems on the mud volcanoes is accompanied at surface by a shift from the N. incompta dominated assemblage to a Globorotalia inflata dominated assemblage, possibly reflecting more oligotrophic conditions. This shift is coeval to the passage from wet to arid conditions at the end of the African Humid Period at Maya MV. It is interpreted as an effect of an early human impact on a fragile environment, which was already stressed by desiccation at the time of the development of complex human society along the Mediterranean coasts, at Dhaka MV.

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Section: Similarities and Differences Of Faunal Assemblages Between Tmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Growth and demise of cold-water coral ecosystems on mud volcanoes in the West Alboran Sea: The messages from the planktonic and benthic foraminifera

et al. 2011

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“…Such material comprises both live and dead representatives, here considered cumulatively. It should be noted, however, that the latter may well include late Pleistocene subfossils, including CWCs, whose presence in the deep southern Adriatic Sea was ascertained long ago (Colantoni et al, 1975;McCulloch et al, 2010). Finally, this study also offers a contribution to the current renewed interest for the marine taxonomy of the Mediterranean Sea (Cirino et al, 2016;Boero et al, 2017;Keppell et al, 2017), and to helping to establish a better governance of CWC habitats in light of current anthropic and climatic threats (Fosså et al, 2002;Orejas et al, 2009;Fabri et al, 2012;Maier et al, 2012;McCulloch et al, 2012;Rodolfo-Metalpa et al, 2015;D'Onghia et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Benthic invertebrates associated with subfossil cold-water coral frames and hardgrounds in the Albanian deep waters (Adriatic Sea)

Nasto¹,

Cardone²,

Mastrototaro³

et al. 2018

Turk J Zool

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The fauna collected associated with subfossil Lophelia pertusa and Dendrophyllia cornigera coral samples and hardgrounds from Albanian waters between 190-230 m is discussed. Eighty-three benthic species are recorded: 2 Foraminifera, 22 Porifera, 6 Cnidaria, 25 Mollusca, 14 Annelida, 1 Arthropoda, 12 Bryozoa, and 1 Echinodermata. Seventy-four species are new records for the poorly investigated Albanian deep waters.

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“…Till now continuous marine 14 C records have only been acquired from a limited number of biogenic calcifying archives. Currently, only sparse 14 C data are available for the Mediterranean Sea in order to constrain the MRE with limited age ranges (SIANI et al, 2000(SIANI et al, , 2001REIMER and MCCORMAC, 2002;MCCULLOCH et al, 2010;TISNÉRAT-LABORDE et al, 2013;FAIVRE et al, 2015). In this framework, several research lines on algal and shell MREs (shells inhabiting algal rims) have been initiated, which could together provide records on MRE variability throughout the 1.5 ka period.…”

mentioning

confidence: 99%

Variation of the 1.5 ka surface water marine radiocarbon reservoir age in the Adriatic based on the study of algal rims

Faivre¹,

Bakran‐Petricioli²,

Barešić³

et al. 2017

Edition 4, Split, Croatie

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Abstract:The latest research on relative sea-level change along the eastern Adriatic has been cantered on algal rims build by Lithophyllum byssoides (FAIVRE et al., 2010;. Such fossil bio-constructions have proven to be precise sea-level indicators in microtidal environments (LABOREL et al., 1994). However, this perfect relative sealevel marker is constrained by its marine radiocarbon reservoir age (MRE) which is not known. Previous research assumes that Lithophyllum does not appear to be subject to any kind of reservoir effect. Those assumptions were based on the datation of living thalli (LABOREL et al., 1994). Here, we provide evidence for the algal MRE based on algal samples of known age obtained from the Natural History Museums in Paris and Vienna and from the Universität Hamburg. The algae used for 14 C dating were collected from AD 1858 to 1913 and represent the pre-bomb period. We applied radiocarbon dating of marine material with a known calendar date of death of the organism. This approach enables a comparison of contemporaneous atmospheric and marine radiocarbon ages. The deficiency in 14 C content of the measured marine sample relative to the global atmospheric calibration curve is then used to calculate the "apparent age" of the material. We further used palaeo data from 10 Eastern Adriatic algal rims from which we obtained radiocarbon and stable isotope (δ 18 0 and δ 13 C) records. Based on those records we provide several lines of evidence that the alga which lives in the intertidal zone has a lower marine radiocarbon reservoir age than the mean surface water MRE. On the other hand, shells (mytilid bivalves) from algal rims reveal higher 125Mediterranean rocky coasts: Features, processes, evolution and problems reservoir ages than global means, similar to previously published data (FAIVRE et al., 2015). Furthermore, as living exclusively in the intertidal zone L. byssoides, could reflect longterm surface water MRE variations as surface ocean radiocarbon time series can provide a unique opportunity to study both air-sea 14 CO 2 exchanges and ocean circulation dynamics. Till now continuous marine 14 C records have only been acquired from a limited number of biogenic calcifying archives. Currently, only sparse 14 C data are available for the Mediterranean Sea in order to constrain the MRE with limited age ranges (SIANI et al., 2000(SIANI et al., , 2001REIMER and MCCORMAC, 2002;MCCULLOCH et al., 2010;TISNÉRAT-LABORDE et al., 2013;FAIVRE et al., 2015). In this framework, several research lines on algal and shell MREs (shells inhabiting algal rims) have been initiated, which could together provide records on MRE variability throughout the 1.5 ka period. Our radiocarbon and stable isotope records over the last 1.5 ka from 10 algal rims revealed bimodal properties of the Adriatic surface water MRE.

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Proliferation and demise of deep-sea corals in the Mediterranean during the Younger Dryas

Cited by 84 publications

References 51 publications

Growth and demise of cold-water coral ecosystems on mud volcanoes in the West Alboran Sea: The messages from the planktonic and benthic foraminifera

Growth and demise of cold-water coral ecosystems on mud volcanoes in the West Alboran Sea: The messages from the planktonic and benthic foraminifera

Benthic invertebrates associated with subfossil cold-water coral frames and hardgrounds in the Albanian deep waters (Adriatic Sea)

Variation of the 1.5 ka surface water marine radiocarbon reservoir age in the Adriatic based on the study of algal rims

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