Demography of the over-exploited Mediterranean red coral (&lt;i&gt;Corrallium rubrum&lt;/i&gt; L. 1758)

Santangelo, G.; Maggi, Elena; Bramanti, Lorenzo; Bongiorni, Lucia

doi:10.3989/scimar.2004.68s1199

Cited by 37 publications

(23 citation statements)

References 18 publications

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“…The maximum diameter for each colony was used for comparison to ensure standardization among colonies with different growth forms (per Suggett et al, 2012). Fits of exponential decay across the counts in each bin were performed for both 2012 and 2013 to assess the population size-classes (Santangelo et al, 2004). The log count in each bin was plotted against the middle size category, with fits only done on categories until the first zero bin was reached; thus, avoiding issues with non-defined logarithms.…”

Section: Discussionmentioning

confidence: 99%

Coral Community Structure and Recruitment in Seagrass Meadows

et al. 2017

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Coral communities are increasingly found to populate non-reef habitats prone to high environmental variability. Such sites include seagrass meadows, which are generally not considered optimal habitats for corals as a result of limited suitable substrate for settlement and substantial diel and seasonal fluctuations in physicochemical conditions relative to neighboring reefs. Interest in understanding the ability of corals to persist in non-reef habitats has grown, however little baseline data exists on community structure and recruitment of scleractinian corals in seagrass meadows. To determine how corals populate seagrass meadows, we surveyed the established and recruited coral community over 25 months within seagrass meadows at Little Cayman, Cayman Islands. Simultaneous surveys of established and recruited coral communities at neighboring back-reef sites were conducted for comparison. To fully understand the amount of environmental variability to which corals in each habitat were exposed, we conducted complementary surveys of physicochemical conditions in both seagrass meadows and back-reefs. Despite overall higher variability in physicochemical conditions, particularly pH, compared to the back-reef, 14 coral taxa were capable of inhabiting seagrass meadows, and multiple coral families were also found to recruit to these sites. However, coral cover and species diversity, richness, and evenness were lower at sites within seagrass meadows compared to back-reef sites. Although questions remain regarding the processes governing recruitment, these results provide evidence that seagrass beds can serve as functional habitats for corals despite high levels of environmental variability and suboptimal conditions compared to neighboring reefs.

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Section: Discussionmentioning

confidence: 99%

Coral Community Structure and Recruitment in Seagrass Meadows

et al. 2017

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“…The same dynamics of cyclic abundances of small and large colonies (young and old) have theoretically been forecast for Corallium rubrum by means of a mathematical model (Bramanti et al 2009) and have been explained as an effect of exploitation (Santangelo et al 2007, Linares et al 2010 or anthropogenic disturbance (McClanahan & Muthiga 1988, Hughes et al 2003, Blackwood et al 2010. In long-lived species, the extremely slow life cycle does not allow direct observation of the forecasted dynamics, and the use of simulations, based on demographic models, is the only way to understand the long-term patterns (Heppel et al 1996, Fujiwara & Caswell 2001, Santangelo et al 2004, Santangelo & Bramanti 2006, Arrigoni et al 2011). Dynamics of fast-growing species with annual life cycles make it possible to observe in real time the same processes driving the dynamics of slow-growing species.…”

Section: Seasonal Trends Of the Eudendrium Racemosum Population And Tmentioning

confidence: 99%

Trophic impact of long-lived species indicated by population dynamics in the short-lived hydrozoan Eudendrium racemosum

Rossi¹,

Bramanti²,

Broglio³

et al. 2012

Mar. Ecol. Prog. Ser.

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“…Because of its long history of exploitation since the 17th century and the continuous collecting activities by scuba divers (TESCIONE, 1968;SANTANGELO et al, 1993b;SANTANGELO & ABBIATI, 2001) shallow water populations are rarely able to reach a commercial size and are currently dominated by young, small colonies (GARCIA- RODRIGUEZ & MASS , 1986;CATTANEO-VIETTI et al, 1993;SANTANGELO et al, 1993aSANTANGELO et al, , 2003, in contrast with the deeper ones, accessible only to professional coral fishers and situated along the African coasts, from Morocco to Tunisia, in Spain and in western Sardinia (CATTANEO-VIETTI et al, 1992), where the Alghero coast, thanks to this peculiarity, is also known as 'Riviera del corallo '(COLOMO, 2002).…”

Section: Molluscs Associated With a Sardinian Deep Water Population Omentioning

confidence: 99%

Molluscs associated with a Sardinian deep water population of Corallium rubrum (Linnι, 1758)

Crocetta

Spanu²

2008

Medit. Mar. Sci.

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Molluscan species living in association with Corallium rubrumcolonies are poorly known. Specimensfound on the branches of red coral colonies located off Capo Caccia (Alghero – SS, West Sardinia,Mediterranean Sea) were studied by analyzing red coral branches collected at a depth of between 100 and120 m; their assemblage was made up of 44 species, all belonging to the classes Gastropoda and Bivalvia.Some data on the geographical distribution, ecology, taxonomy and dominance of these species, bothalive and dead, are given and the most interesting are commented on. Among the recorded species Triviamultilirata, Simnia purpurea, Coralliophila brevis, Ocinebrina paddeui, Pleurotomella demosia, Palliolumstriatum and Pseudamussium sulcatum deserve attention. Moreover, the second finding of livingspecimens of Asperarca secreta, described only on loose valves, is reported, and finally the prey-predatorrelationships among several gastropods and Cnidarians are confirmed.

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Demography of the over-exploited Mediterranean red coral (<i>Corrallium rubrum</i> L. 1758)

Cited by 37 publications

References 18 publications

Coral Community Structure and Recruitment in Seagrass Meadows

Coral Community Structure and Recruitment in Seagrass Meadows

Trophic impact of long-lived species indicated by population dynamics in the short-lived hydrozoan Eudendrium racemosum

Molluscs associated with a Sardinian deep water population of Corallium rubrum (Linnι, 1758)

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