Colonization of plastic debris by the long-lived precious red coral Corallium rubrum: New insights on the “plastic benefits” paradox

2021 ◽  
Vol 165 ◽  
pp. 112104
Author(s):  
Laura Carugati ◽  
Lorenzo Bramanti ◽  
Bruna Giordano ◽  
Lucia Pittura ◽  
Rita Cannas ◽  
...  
2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Jeroen A. J. M. van de Water ◽  
Rémy Melkonian ◽  
Howard Junca ◽  
Christian R. Voolstra ◽  
Stéphanie Reynaud ◽  
...  

2021 ◽  
Vol 8 ◽  
Author(s):  
Justine Richaume ◽  
Adrien Cheminée ◽  
Pierre Drap ◽  
Patrick Bonhomme ◽  
Frederic Cadene ◽  
...  

Imaging the marine environment is more and more useful to understand relationships between species, as well as natural processes. Developing photogrammetry allowed the use of 3D measuring to study populations dynamics of sessile organisms at various scales: from colony to population. This study focuses on red coral (Corallium rubrum), as known as precious coral. Metrics measured at a colony scale (e.g., maximum height, diameter and number of branches) allowed population understanding and a comparison between an old (Cerbère-Banyuls reserve) vs. a new (Calanques National Park) MPA. Our results suggested a 5-year time step allows the appearance of a significant difference between populations inside vs. outside the Calanques National Park no-take zones. Red coral colonies were taller and had more branches inside no-take zones. A significant difference was still observable for the populations inside the Cerbère-Banyuls reserve after 40 years of protection, reflecting the sustainability and effectiveness of precautionary measures set by the reserve. The impacts at the local level (mechanical destruction) and those presumed to occur via global change (climatic variations) underline the need to develop strategies both to follow the evolutions of red coral populations but also to understand their resilience. Photogrammetry induced modeling is a time and cost effective as well as non-invasive method which could be used to understand population dynamics at a seascape scale on coralligenous reefs.


2008 ◽  
Vol 154 (3) ◽  
pp. 533-545 ◽  
Author(s):  
Sergio Rossi ◽  
Georgios Tsounis ◽  
Covadonga Orejas ◽  
Tirma Padrón ◽  
Josep-Maria Gili ◽  
...  

2017 ◽  
Vol 4 (3) ◽  
pp. 160880 ◽  
Author(s):  
M. Pratlong ◽  
A. Haguenauer ◽  
S. Chenesseau ◽  
K.  Brener ◽  
G. Mitta ◽  
...  

Sexual reproduction is widespread among eukaryotes, and the sex-determining processes vary greatly among species. While genetic sex determination (GSD) has been intensively described in bilaterian species, no example has yet been recorded among non-bilaterians. However, the quasi-ubiquitous repartition of GSD among multicellular species suggests that similar evolutionary forces can promote this system, and that these forces could occur also in non-bilaterians. Studying sex determination across the range of Metazoan diversity is indeed important to understand better the evolution of this mechanism and its lability. We tested the existence of sex-linked genes in the gonochoric red coral ( Corallium rubrum , Cnidaria) using restriction site-associated DNA sequencing. We analysed 27 461 single nucleotide polymorphisms (SNPs) in 354 individuals from 12 populations including 53 that were morphologically sexed. We found a strong association between the allele frequencies of 472 SNPs and the sex of individuals, suggesting an XX/XY sex-determination system. This result was confirmed by the identification of 435 male-specific loci. An independent test confirmed that the amplification of these loci enabled us to identify males with absolute certainty. This is the first demonstration of a GSD system among non-bilaterian species and a new example of its convergence in multicellular eukaryotes.


2008 ◽  
Vol 93 (11-12) ◽  
pp. 1799-1815 ◽  
Author(s):  
D. Vielzeuf ◽  
J. Garrabou ◽  
A. Baronnet ◽  
O. Grauby ◽  
C. Marschal
Keyword(s):  

Genetica ◽  
2011 ◽  
Vol 139 (7) ◽  
pp. 855-869 ◽  
Author(s):  
D. Aurelle ◽  
J.-B. Ledoux ◽  
C. Rocher ◽  
P. Borsa ◽  
A. Chenuil ◽  
...  

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