First record of bioaccumulation and bioconcentration of metals in Scleractinian corals and their algal symbionts from Kharg and Lark coral reefs (Persian Gulf, Iran)

2018 ◽  
Vol 640-641 ◽  
pp. 1500-1511 ◽  
Author(s):  
Ali Ranjbar Jafarabadi ◽  
Alireza Riyahi Bakhtiari ◽  
Maria Maisano ◽  
Patrícia Pereira ◽  
Tiziana Cappello
2017 ◽  
Vol 98 (8) ◽  
pp. 2067-2073 ◽  
Author(s):  
Tooba Varasteh ◽  
Mohammad Reza Shokri ◽  
Hassan Rajabi-Maham ◽  
Safoura Behzadi ◽  
Benjamin C. C. Hume

Coral communities of the Persian Gulf (PG) withstand maximum and annual ranges of water temperatures that surpass those found on the majority of reefs elsewhere. As such, these communities may inform on how coral reefs might adapt to the warmer waters of the future. Depending on the algal symbiont (genus Symbiodinium) harboured, advantages in stress tolerance may be conferred to the coral holobiont. Characterizing the algal component is therefore critical in determining the coral holobiont's tolerance phenotype. Coral associations off the Arabian coastline of the PG have been characterized as biogeographically unique, containing a rare group of taxonomically ancestral and thermotolerant algal symbionts, the Symbiodinium thermophilum group. In contrast, waters off the Iranian coast remain poorly characterized with a notable lack of S. thermophilum group symbionts identified in coral associations to date. Here, we characterize the algal component of two reef building corals (Porites harrisoni and Cyphastrea microphthalma) predominant at three sites spanning almost the entire length of the PG's Iranian coast. Genotyping using the chloroplastic 23S and nuclear ITS2 genes, we demonstrate the presence of S. thermophilum group symbionts. We discuss the probable physical drivers of these associations and highlight the need for further research in these relatively understudied waters.


Nematology ◽  
2021 ◽  
pp. 1-22
Author(s):  
Azadeh Gharahkhani ◽  
Ebrahim Pourjam ◽  
Daniel Leduc ◽  
Majid Pedram

Summary The Desmodoridae is a diverse and widespread family of free-living nematodes. Here, we provide the first record of the group in the Persian Gulf and describe three new species: Metachromadoroides sinuspersici sp. n., Zalonema iranicum sp. n. and Z. supplementorum sp. n. Metachromadoroides sinuspersici sp. n. is characterised by finely annulated cuticle, short and stout cephalic sensilla, amphidial fovea on cuticular thickening, pharyngeal bulb well developed and partitioned into three sections, absence of precloacal supplements, and presence of 6-8 pairs of rounded postcloacal papillae. Zalonema iranicum sp. n. is characterised by papilliform subcephalic sensilla (best observed with SEM), convex cephalic capsule, large multispiral amphidial fovea with 4-5 turns in both males and females, buccal cavity with one ventrosublateral and two dorsal teeth and posterior body of males with lateral alae extending from the last third of the body to the cloacal aperture and ventral alae extending 1395-2250 μm anterior to the cloacal aperture, and no precloacal supplements. Zalonema supplementorum sp. n. is characterised by four subcephalic sensilla 1-2 μm long, multispiral amphidial fovea with three turns in both males and females, buccal cavity with one dorsal and two ventrosublateral teeth, males with lateral alae present on each side of body from posterior half of body to cloacal aperture, ventral alae extending 942-1257 μm anterior to cloacal aperture, strongly cuticularised spicules 41-43 μm long, and 12-16 precloacal supplements. Near full length SSU and partial D2-D3 LSU sequences are provided for M. sinuspersici sp. n. and Z. iranicum sp. n., and the COI sequence is provided for Z. iranicum. The SSU phylogeny suggests a close relationship between M. sinuspersici sp. n. and Metachromadora and Metachromadoroides species and the monophyly of Zalonema (after currently available data). The LSU phylogeny suggests an affinity between Metachromadoroides and Zalonema with Spirinia and Acanthopharynx, respectively.


2019 ◽  
Vol 24 (7) ◽  
pp. 1319-1336
Author(s):  
Shahrooz Kazemi

In a survey on the edaphic mesostigmatic mites in mangrove forests of Qeshm Island, eastern of the Persian Gulf, two species of the family Ascidae were collected in broken cockleshells and sand in littoral zone: Leioseius sepidehae sp. nov. and Protogamasellus mica (Athias-Henriot, 1961). This is the first record of the genus Leioseius from Iran. Leioseius sepidehae sp. nov. is described from adult females. Intraspecific variations of some characters of P. mica are discussed, and based on those, P. primitivus machadoi Genis, Loots & Ryke, 1967 and P. primitivus similis Genis, Loots & Ryke, 1967 are herein synonymized under P. mica. Finally, the occasional presence of the gland pores gv1 in Ascidae is reviewed, and a key to the Iranian genera and species of Ascidae is presented.


2018 ◽  
Vol 10 (15) ◽  
pp. 12986-12989
Author(s):  
K. K. Idreesbabu ◽  
C.P. Rajool Shanis ◽  
S. Sureshkumar

Two female specimens of the Furry Lobster Palinurellus wieneckii (De Man, 1881) with a total length of 118mm and 114mm, respectively, were obtained from the coral reefs off Kavaratti Island, Laccadive Islands, west of India.  Only two species are currently recognized in this genus, which were described from a small number of specimens.  As P. wieneckii is very rare, the present report from the Lakshadweep Archipelago provides a valuable new distribution point, which is the first record for the Arabian Sea.  Illustrations and photographs are provided for this rare lobster.


Phytotaxa ◽  
2018 ◽  
Vol 372 (2) ◽  
pp. 111
Author(s):  
ADIL Y. AL-HANDAL ◽  
EVAN W. THOMAS ◽  
CHIARA PENNESI

The recent discovery of coral reefs off Basra, Southern Iraq, have prompted the investigation of marine benthic assemblages in this unexplored ecosystem. These corals are thriving in an environment with conditions not usually considered typical for reefs, such as increased turbidity, temperature fluctuation, and currents. This study documents 96 diatom taxa belonging to 33 genera, 18 of which were not previously known from the Arabian (Persian) Gulf including six taxa of Amphora and five of Campylodiscus. The most common genera were Amphora with 17 taxa, Nitzschia with 10 taxa, and Navicula with nine taxa. Most notably is the very rare occurrence of Mastogloia, which has been previously documented as speciose in coral reef habitats. Similarly, araphid and monoraphid species were uncommon in these diatom communities. The large species of the epipelic diatom Trachyneis are well represented and appeared commonly in all samples examined.


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