scholarly journals Using DNA Barcoding Technique to Identify Some Scleractinian Coral Species along the Egyptian Coast of the Red Sea and Southern of Arabian Gulf

2018 ◽  
Vol 02 (01) ◽  
pp. 53-63
Author(s):  
Mohammed Ahmed Sadek ◽  
Mohammed Ismail Ahmed ◽  
Fedekar Fadel Madkour ◽  
Mahmoud Hasan Hanafy
Keyword(s):  
Dna Barcoding ◽  
Red Sea ◽  
Scleractinian Coral ◽  
Coral Species ◽  
Arabian Gulf ◽  
Egyptian Coast

Porites fontanesii, a new species of hard coral (Scleractinia, Poritidae) from the southern Red Sea, the Gulf of Tadjoura, and the Gulf of Aden, and its phylogenetic relationships within the genus

Zootaxa ◽  
2012 ◽  
Vol 3447 (1) ◽  
pp. 56 ◽  
Author(s):  
FRANCESCA BENZONI ◽  
FABRIZIO STEFANI
Keyword(s):  
New Species ◽  
Red Sea ◽  
Scleractinian Coral ◽  
Coral Species ◽  
Distinct Species ◽  
Gulf Of Aden ◽  
Hard Coral ◽  
The North ◽  
North Western ◽  
A New Species

A new zooxanthellate reef-dwelling scleractinian coral species, Porites fontanesii sp. nov. (Scleractinia, Poritidae), is de-scribed. The examined material was collected from the Southern Red Sea, the Gulf of Tadjoura, and the Gulf of Aden.Porites fontanesii sp. nov. was most frequently observed along the Yemen south Red Sea and the north-western Gulf ofAden coasts. Although a complete molecular phylogeny of Porites is not available yet, the relationships between P. fon-tanesii sp. nov. and twenty other species of the genus were explored through analysis of the available rDNA sequences.Porites fontanesii sp. nov. was seen to be a distinct species basal to, and well divergent from, one of the two main clades so far identified in the genus rDNA phylogeny.

scholarly journals Comparative morphology on some sclerectanian corals in Arabian Gulf and the Egyptian Coast of the Red Sea

2018 ◽  
Vol 22 (3) ◽  
pp. 13-24
Author(s):  
Mohammed A. Sadek ◽  
Fedekar F. Madkour ◽  
Mohammed I. Ahmed ◽  
Mahmoud H. Hanafy
Keyword(s):  
Red Sea ◽  
Arabian Gulf ◽  
Comparative Morphology ◽  
Egyptian Coast

Cyphastrea (Cnidaria : Scleractinia : Merulinidae) in the Red Sea: phylogeny and a new reef coral species

2017 ◽  
Vol 31 (2) ◽  
pp. 141 ◽  
Author(s):  
Roberto Arrigoni ◽  
Michael L. Berumen ◽  
Danwei Huang ◽  
Tullia I. Terraneo ◽  
Francesca Benzoni
Keyword(s):  
Red Sea ◽  
Phylogenetic Relationships ◽  
Scleractinian Coral ◽  
Growth Form ◽  
Coral Species ◽  
Histone H3 ◽  
Reef Coral ◽  
Systematic Revision ◽  
The Third ◽  
Nuclear Histone

The scleractinian coral Cyphastrea is a common and widespread genus throughout the coral reefs of the Indo-Pacific. Little is known about the phylogenetic relationships within this taxon and species identification is based mainly on traditional skeletal characters, such as the number of septa, septa cycles, growth form and corallite dimensions. Here we present the first focussed reconstruction of phylogenetic relationships among Cyphastrea species, analysing 57 colonies from the Red Sea, where five morphospecies live in sympatry. Analyses based on three loci (nuclear histone H3, 28S rDNA and a mitochondrial intergenic region) reveal the existence of three well-supported molecular lineages. None of the five previously defined morphospecies are monophyletic and they cluster into two clades, suggesting the need of a systematic revision in Cyphastrea. The third lineage is described as C. magna Benzoni & Arrigoni, sp. nov., a new reef coral species collected from the northern and central Red Sea. Cyphastrea magna Benzoni & Arrigoni, sp. nov. is characterised by the largest corallite diameter among known Cyphastrea species, a wide trabecular columella >1/4 of calice width, and 12 equal primary septa. This study suggests that morphology-based taxonomy in Cyphastrea may not identify monophyletic units and strengthens the application of genetics in coral systematics.

scholarly journals Corrections to: Apparent recruitment failure for the vast majority of coral species at Eilat, Red Sea

Coral Reefs ◽  
2021 ◽  
Author(s):  
Gabriele Guerrini ◽  
Maayan Yerushalmy ◽  
Dor Shefy ◽  
Nadav Shashar ◽  
Baruch Rinkevich
Keyword(s):  
Red Sea ◽  
Coral Species ◽  
Recruitment Failure

Measuring Coral Skeletal Architecture Using Image Analysis v1

2021 ◽  
Author(s):  
Rowan Mclachlan ◽  
Ashruti Patel ◽  
Andrea G Grottoli
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Image Analysis ◽  
Scleractinian Coral ◽  
Coral Species ◽  
Energy Materials ◽  
Simple Method ◽  
Coral Skeletons ◽  
Skeletal Structures ◽  
Scanning Electron

Coral morphology is influenced by genetics, the environment, or the interaction of both, and thus is highly variable. This protocol outlines a non-destructive and relatively simple method for measuring Scleractinian coral sub-corallite skeletal structures (such as the septa length, theca thickness, and corallite diameter, etc.) using digital images produced as a result of digital microscopy or from scanning electron microscopy. This method uses X and Y coordinates of points placed onto photomicrographs to automatically calculate the length and/or diameter of a variety of sub-corallite skeletal structures in the Scleractinian coral Porites lobata. However, this protocol can be easily adapted for other coral species - the only difference may be the specific skeletal structures that are measured (for example, not all coral species have a pronounced columella or pali, or even circular corallites). This protocol is adapted from the methods described in Forsman et al. (2015) & Tisthammer et al. (2018). There are 4 steps to this protocol: 1) Removal of Organic Tissue from Coral Skeletons 2) Imaging of Coral Skeletons 3) Photomicrograph Image Analysis 4) Calculation of Corallite Microstructure Size This protocol was written by Dr. Rowan McLachlan and was reviewed by Ashruti Patel and Dr. Andréa Grottoli. Acknowledgments Leica DMS 1000 and Scanning Electron Microscopy photomicrographs used in this protocol were acquired at the Subsurface Energy Materials Characterization and Analysis Laboratory (SEMCAL), School of Earth Sciences at The Ohio State University, Ohio, USA. I would like to thank Dr. Julie Sheets, Dr. Sue Welch, and Dr. David Cole for training me on the use of these instruments.

scholarly journals Heavy Metals Concentrations in Fish from Red Sea and Arabian Gulf: Health Benefits and Risk Assessments due to their Consumption

2015 ◽  
Vol 27 (12) ◽  
pp. 4411-4416 ◽  
Author(s):  
K.T. Kamal ◽  
K. Lotfi ◽  
K.D. Omar ◽  
R.E. Mohamed ◽  
K.M. Abueliz ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Red Sea ◽  
Arabian Gulf ◽  
Health Benefits ◽  
Risk Assessments

scholarly journals Phylogenetic analysis and identification of Charybdis natator (Herbst, 1794) from the Egyptian Coast of the Red Sea

2020 ◽  
Vol 24 (2) ◽  
pp. 417-426
Author(s):  
Amira T. Abo-Hashesh ◽  
Fedekar F. Madkour ◽  
Wafaa S. Sallam ◽  
Amro M. Hanora ◽  
Hanaa K. Ashour
Keyword(s):  
Phylogenetic Analysis ◽  
Red Sea ◽  
Egyptian Coast

Response to Increased Sediment Load by Three Coral Species from the Gulf of Suez (Red Sea)

2009 ◽  
Vol 4 (5) ◽  
pp. 238-245 ◽  
Author(s):  
M.L. Ebeid ◽  
M.H. Hassan ◽  
Y.A. Geneid
Keyword(s):  
Red Sea ◽  
Coral Species ◽  
Sediment Load ◽  
Gulf Of Suez

scholarly journals Exponential increase of plastic burial in mangrove sediments as a major plastic sink

2020 ◽  
Vol 6 (44) ◽  
pp. eaaz5593 ◽  
Author(s):  
C. Martin ◽  
F. Baalkhuyur ◽  
L. Valluzzi ◽  
V. Saderne ◽  
M. Cusack ◽  
...  
Keyword(s):  
Red Sea ◽  
Surface Waters ◽  
Sediment Cores ◽  
Arabian Gulf ◽  
Avicennia Marina ◽  
Plastic Pollution ◽  
Mangrove Sediments ◽  
Burial Rate ◽  
Exponential Increase ◽  
Accretion Rates

Sequestration of plastics in sediments is considered the ultimate sink of marine plastic pollution that would justify unexpectedly low loads found in surface waters. Here, we demonstrate that mangroves, generally supporting high sediment accretion rates, efficiently sequester plastics in their sediments. To this end, we extracted microplastics from dated sediment cores of the Red Sea and Arabian Gulf mangrove (Avicennia marina) forests along the Saudi Arabian coast. We found that microplastics <0.5 mm dominated in mangrove sediments, helping explain their scarcity, in surface waters. We estimate that 50 ± 30 and 110 ± 80 metric tons of plastic may have been buried since the 1930s in mangrove sediments across the Red Sea and the Arabian Gulf, respectively. We observed an exponential increase in the plastic burial rate (8.5 ± 1.2% year−1) since the 1950s in line with the global plastic production increase, confirming mangrove sediments as long-term sinks for plastics.

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