DNA Barcoding of Red Sea Fishes from Saudi Arabia – The first approach

DNA Barcodes ◽  
2014 ◽  
Vol 2 (1) ◽  
Author(s):  
Subrata Trivedi ◽  
Raafat Affan ◽  
Abdulrahman Hirab A Alessa ◽  
Abid A Ansari ◽  
Bishal Dhar ◽  
...  
Keyword(s):  
Saudi Arabia ◽  
Cryptic Species ◽  
Dna Barcoding ◽  
Red Sea ◽  
Coastal Waters ◽  
Large Scale ◽  
Sampling Site ◽  
Fish Samples ◽  
Preliminary Study ◽  
High Possibility

AbstractDNA barcoding is a worldwide initiative. Although there is a campaign to barcode all fishes, there is no information on the DNA barcoding of Red Sea fishes. With the aim of strengthening the BOLD/barcode database with the sequences of Red sea fishes this preliminary study was conducted with six different fish species collected from coastal waters of Tabuk in Saudi Arabia. Among the six fish samples collected from the same sampling site, two sequences were novel. So, it is necessary to carry out large scale sampling covering a bigger area of Red Sea because there is high possibility to detect new/cryptic species from the unexplored biodiversity rich Red Sea.

scholarly journals COAST AND GEODETIC SURVEY DATA - AN AID TO THE COASTAL ENGINEER

2010 ◽  
Vol 1 (1) ◽  
pp. 11
Author(s):  
Robert F. A. Studds
Keyword(s):  
United States ◽  
Coastal Waters ◽  
Large Scale ◽  
The United States ◽  
Geodetic Survey ◽  
Coastal Regions ◽  
Preliminary Study ◽  
Construction Plans ◽  
Topographic Surveys

In its long career of surveying and chartering the coastal waters of the United States and possessions, a career which dates back to the early part of the nineteenth century, the work of the Coast and Geodetic Survey has been associated with the problems of the coastal engineer. Its successive hydrographic and topographic surveys of the coastal regions furnish basic data for the study of changes in the coastline and adjacent underwater topography and the means to arrest these changes; its tide and current surveys provide the fundamental data necessary in the design of waterfront structures and in harbor improvement; and its geodetic control surveys provide an accurate base for the preliminary study and final construction plans for large-scale improvement projects. To a lesser extent the geomagnetic and seismologic data of the Bureau have also been used by the coastal engineer.

scholarly journals Preliminary study of a microsporidian infecting the teleost fish Cephalopholis hemistiktos from the Red Sea in Saudi Arabia

2015 ◽  
Vol 21 (S6) ◽  
pp. 40-41
Author(s):  
C. Azevedo ◽  
S. Rocha ◽  
A.A. Abdel-Baki ◽  
S. Al-Quraishy ◽  
G. Casal
Keyword(s):  
Saudi Arabia ◽  
Red Sea ◽  
Teleost Fish ◽  
Preliminary Study

Egypt's Sisi is set to stay despite challenges

2016 ◽  
Keyword(s):  
Saudi Arabia ◽  
Red Sea ◽  
Large Scale ◽  
Police Brutality ◽  
Sea Islands ◽  
Content Type ◽  
Gulf Arab

Subject Two-year outlook for Sisi. Significance President Abdel-Fattah el-Sisi is approaching the mid-point in his first four-year term in office faced with an increasingly disaffected public. Conflicting reports on the disappearance of EgyptAir flight MS804 on May 19 are weakening his government's credibility while an agreement in April to cede sovereignty over two Red Sea islands to Saudi Arabia prompted protests about both that decision and other aspects of his regime, particularly police brutality and a deteriorating economy. Impacts The dissatisfaction with Sisi is unlikely to develop into any kind of large-scale uprising. Sisi may nevertheless face stirrings of revolt within factions of the security establishment. The authoritarian system does not lend itself to the emergence of a credible rival that could present a realistic challenge to Sisi. Sisi's Gulf Arab allies, Saudi Arabia and the UAE, are likely to stand by him.

Seasonality and latitudinal variability in the diatom-cyanobacteria symbiotic relationships in the coastal waters of the Red Sea, Saudi Arabia

Symbiosis ◽  
2019 ◽  
Vol 78 (3) ◽  
pp. 215-227
Author(s):  
Reny P. Devassy ◽  
Mohsen M. El-Sherbiny ◽  
Abdulmohsin A. Al-Sofyani ◽  
Michael P. Crosby ◽  
Ali M. Al-Aidaroos
Keyword(s):  
Saudi Arabia ◽  
Red Sea ◽  
Coastal Waters ◽  
Symbiotic Relationships

Nia lenicarpa sp. nov. (Niaceae, Agaricales) from Red Sea mangroves in Saudi Arabia with comments on Nia vibrissa

Phytotaxa ◽  
2019 ◽  
Vol 406 (3) ◽  
pp. 157-168 ◽  
Author(s):  
MOHAMED A. ABDEL-WAHAB ◽  
E. B. GARETH JONES ◽  
FATEN A. ABDEL-AZIZ ◽  
ALI H. BAHKALI
Keyword(s):  
Saudi Arabia ◽  
Cryptic Species ◽  
Red Sea ◽  
Phylogenetic Analyses ◽  
Avicennia Marina ◽  
Molecular Data ◽  
The Other ◽  
Lsu Rdna ◽  
Decayed Wood ◽  
Monophyletic Clade

An undescribed Nia species was recorded from intertidal decayed wood of Avicennia marina collected from Red Sea mangroves in Saudi Arabia. Nia lenicarpa sp. nov. is characterized by smooth basidiomes, growing singly or in groups of 2 to 10 confluent basidiomes, with a three-layered, thick peridium and 4-spored basidia. Nia lenicarpa differs from N. vibrissa by having smaller basidiomes without peridial hairs but with thick peridia, larger basidia and basidiospores. Phylogenetic analyses of SSU and LSU rDNA placed N. lenicarpa in a monophyletic clade with two N. vibrissa clades. There are no molecular data available for the other two Nia species; N. epidermoidea and N. globispora. The morphology of N. vibrissa from driftwood collected from a beach in Japan is illustrated. Vertical sections of basidiomes of the Japanese material showed the presence of an outer peridium that is formed by the tips of the peridial hairs which was not reported before. This supports the presence of several cryptic species in the N. vibrissa complex.

scholarly journals Developing an Atlas of Harmful Algal Blooms in the Red Sea: Linkages to Local Aquaculture

2020 ◽  
Vol 12 (22) ◽  
pp. 3695
Author(s):  
Elamurugu Alias Gokul ◽  
Dionysios E. Raitsos ◽  
John A. Gittings ◽  
Ibrahim Hoteit
Keyword(s):  
Saudi Arabia ◽  
Red Sea ◽  
Harmful Algal Blooms ◽  
Algal Blooms ◽  
Large Scale ◽  
Nutrient Loading ◽  
National Level ◽  
Spatiotemporal Variability ◽  
Wastewater Management ◽  
Spatial Coverage

Harmful algal blooms (HABs) are one of the leading causes of biodiversity loss and alterations to ecosystem services. The Red Sea is one of the least studied large marine ecosystems (LMEs), and knowledge on the large-scale spatiotemporal distribution of HABs remains limited. We implemented the recently developed remote sensing algorithm of Gokul et al. (2019) to produce a high-resolution atlas of HAB events in the Red Sea and investigated their spatiotemporal variability between 2003 and 2017. The atlas revealed that (i) the southern part of the Red Sea is subject to a higher occurrence of HABs, as well as long-lasting and large-scale events, in comparison to the northern part of the basin, and (ii) the Red Sea HABs exhibited a notable seasonality, with most events occurring during summer. We further investigated the potential interactions between identified HAB events and the National Aquaculture Group (NAQUA), Al-Lith (Saudi Arabia)—the largest aquaculture facility on the Red Sea coast. The results suggest that the spatial coverage of HABs and the elevated chlorophyll-a concentration (Chl-a) (> 1 mg m−3; a proxy for high nutrient concentration), in the coastal waters of Al-Lith during summer, increased concurrently with the local aquaculture annual production over a nine-year period (2002–2010). This could be attributed to excessive nutrient loading from the NAQUA facility’s outfall, which enables the proliferation of HABs in an otherwise oligotrophic region during summer. Aquaculture is an expanding, high-value industry in the Kingdom of Saudi Arabia. Thus, a wastewater management plan should ideally be implemented at a national level, in order to prevent excessive nutrient loading. Our results may assist policy-makers’ efforts to ensure the sustainable development of the Red Sea’s coastal economic zone.

Thraustochytrids from the Red Sea mangroves in Saudi Arabia and their abilities to produce docosahexaenoic acid

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Mohamed A. Abdel-Wahab ◽  
Abd El-Rahim M.A. El-Samawaty ◽  
Abdallah M. Elgorban ◽  
Ali H. Bahkali
Keyword(s):  
Fatty Acids ◽  
Saudi Arabia ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Docosahexaenoic Acid ◽  
Red Sea ◽  
Large Scale ◽  
Phylogenetic Analyses ◽  
Dry Weight ◽  
Rdna Sequences

Abstract This is the first study of thraustochytrids from the Red Sea coast in Saudi Arabia. One hundred and thirty-four isolates of thraustochytids were cultured from Al-Leith, Jeddah and Yanbu mangroves from this area, and were categorized into 38 morphotypes. Among the isolated thraustochytrids, Aurantiochytrium was the most speciose genus, represented by 36 morphological types. Seventeen strains formed a distinct clade within the genus Aurantiochytrium based on phylogenetic analyses of 18S rDNA sequences. The Aurantiochytrium clade from the Middle East is characterized by the production of high levels of oleic and linoleic acids and may represent undescribed taxa. Four Aurantiochytrium strains were grown on large scale to study their ability to produce docosahexaenoic acid (DHA). These strains produced biomass ranging from 37.7 to 66 g L−1 and the percentages of oil ranged from 40 to 57.2% of the dry weight. Twenty-one fatty acids were recorded from the four strains which included: eight saturated four monounsaturated and nine polyunsaturated. Dominant fatty acids included C16:0 palmitic acid (24.14–37.02% total fatty acid (TFA)), C18:1ω9 oleic acid (3.01–25.07% TFA), C18:2ω6 linoleic acid (1.85–20.85% TFA) and C22:6ω3 DHA (4.87–16.5% TFA). DHA was the predominant polyunsaturated fatty acid in three strains, while linoleic acid was the predominant PUFAs in one strain.

scholarly journals Nuclear genomes distinguish cryptic species suggested by their DNA barcodes and ecology

2017 ◽  
Vol 114 (31) ◽  
pp. 8313-8318 ◽  
Author(s):  
Daniel H. Janzen ◽  
John M. Burns ◽  
Qian Cong ◽  
Winnie Hallwachs ◽  
Tanya Dapkey ◽  
...  
Keyword(s):  
Costa Rica ◽  
Cryptic Species ◽  
Dna Barcoding ◽  
Large Scale ◽  
Nuclear Genome ◽  
Color Pattern ◽  
Dry Forest ◽  
Ecological Diversification ◽  
Nuclear Genomes ◽  
Insect Species Richness

DNA sequencing brings another dimension to exploration of biodiversity, and large-scale mitochondrial DNA cytochrome oxidase I barcoding has exposed many potential new cryptic species. Here, we add complete nuclear genome sequencing to DNA barcoding, ecological distribution, natural history, and subtleties of adult color pattern and size to show that a widespread neotropical skipper butterfly known as Udranomia kikkawai (Weeks) comprises three different species in Costa Rica. Full-length barcodes obtained from all three century-old Venezuelan syntypes of U. kikkawai show that it is a rainforest species occurring from Costa Rica to Brazil. The two new species are Udranomia sallydaleyae Burns, a dry forest denizen occurring from Costa Rica to Mexico, and Udranomia tomdaleyi Burns, which occupies the junction between the rainforest and dry forest and currently is known only from Costa Rica. Whereas the three species are cryptic, differing but slightly in appearance, their complete nuclear genomes totaling 15 million aligned positions reveal significant differences consistent with their 0.00065-Mbp (million base pair) mitochondrial barcodes and their ecological diversification. DNA barcoding of tropical insects reared by a massive inventory suggests that the presence of cryptic species is a widespread phenomenon and that further studies will substantially increase current estimates of insect species richness.

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