Holothuria scabra (Holothuroidea: Aspidochirotida): first record of a highly valued sea cucumber, in the Persian Gulf, Iran

2012 ◽  
Vol 5 ◽  
Author(s):  
Abdul-Reza Dabbagh ◽  
Musa Keshavarz ◽  
Dariush Mohammadikia ◽  
Majid Afkhami ◽  
Seyyed Afshin Nateghi
2015 ◽  
Vol 8 ◽  
Author(s):  
Majid Afkhami ◽  
Maryam Ehsanpour ◽  
Ali Nasrolahi

In this paper, we record the occurrence for the first time of two sea cucumber species from the Persian Gulf (Hormuz Island). Sea cucumber samples were collected in the sub-tidal zone of the island during low tide. Species identification was accomplished using morphological keys and a review of their ossicles. The collected specimens provide evidence thatHolothuria bacilliandHolothuria insignisare present in the Persian Gulf 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.


2010 ◽  
Vol 49 (1) ◽  
pp. 109-110
Author(s):  
Fateme Amini Yekta ◽  
Aria Ashja Ardalan ◽  
Mohammad Reza Shokri

2021 ◽  
Author(s):  
Noushin Arfatahery ◽  
Mohammad M. Khabbazan

Abstract Aquatic organisms are a source of organic compounds that hold various features such as medical and nutritional activities. Within the framework of an antimicrobial activity study of marine macro-organisms from the Persian Gulf, bioactive compounds of the sea cucumber Holothuria leucospilota were extracted from the whole body using chloroform and methanol. The extracts were evaluated for their antibacterial effects against methicillin-resistant (MRSA) and staphylococcal enterotoxins producing (SEA, SEB) Staphylococcus aureus strains. Activities have been determined using three methods: disk diffusion tests, minimum bactericidal concentration (MBC), and minimum inhibitory concentration (MIC). The results demonstrate that methanol and chloroform extracts have an inhibitory effect on the growth of all strains at MIC concentrations up to 100 mg/ml. Also, chloroform extracts demonstrate bactericidal activity against SEB in concentrations of about 100 mg/ml. The extracts also show bactericidal effects against MRSA and SEB below 100 mg/ml concentrations. The highest antibacterial activity was found in methanol extract. Therefore, sea cucumber extracts are good candidates for the identification of new antimicrobials. Yet, comprehensive investigations are needed to separate and identify the active components for Holothuria leucospilota from the Persian Gulf.


2020 ◽  
Author(s):  
nerssy nassirabady ◽  
N. Negar Ghotbeddin ◽  
Laleh Roomiani

Abstract Background Mudskipper is from the Gobiidae family and from the subfamily Oxudercinae. Mudskipper contains four main genera Boleophthalmus, Periophthalmodon, Periophthalmus, and Scartelaos. The aim of this research identification of bacterial agent (Marine bacteria) mudskippers Boleophthalmus dussumieri on the Shores of the northern intertidal areas of the Persian Gulf (Abadan, Hendijan and Bahrekan), Iran. The mud sediment and water samples (at the depth of one m), and mudskipper fish samples (near shore at the intertidal) were collected from Abadan, Hendijan and Bahrekan in northern coasts of the Persian Gulf, Iran. Results A total of 80 aerobic bacteria marine (from the intestines of mudskipper, seawater, and muddy sediments ) was identified by biochemical tests and 16S rRNA gene sequence analysis. The bacteria's (Marine bacteria) [Eubacterium] tenue strain DSM 20695, Praclostridium bifermentans strain JCM 1386 and Vibrio hyugaensis strain 090810a was first identified in the northern intertidal areas of Persian Gulf, Iran. Conclusions Bacteria compete with other organisms to get oxygen to the surface layers of the flower bed. They give that the bacterial species common to the fish intestines and sediments is high and due to fish feeding of sediment it can be concluded that the species present in the fish intestine in the present study may be a function of substrate species that needs further studies to prove this.


2016 ◽  
Author(s):  
Sharif Ranjbar ◽  
Mohammad Sayed Dakhteh ◽  
Koen Van Waerebeek

A small, juvenile rorqual live-stranded on Qeshm Island, Iran, in the northern Strait of Hormuz (Persian Gulf) in September 2007. Cause of stranding remains unknown but the whale (QE22.09.2007) showed no severe traumatic injuries nor was emaciated. Based on at least seven morphological features, considered diagnostic in combination, allowed a positive identification as Omura's whale Balaenoptera omurai. Features included diminutive body size (397 cm), a large number of ventral grooves (n=82) extending caudad of the umbilicus, a strongly falcate dorsal fin, asymmetric colouration of the head (especially lower jaws) reminiscent of fin whale, including three unilateral dark stripes, faint/incomplete lateral rostral ridges, record low number of short, broad baleen plates (204 in right jaw). The likelihood for the existence of a local B. omurai population in the eastern Persian Gulf or northern Arabian Sea seems higher than the wandering of a very young animal or mother/calf pair from any of the known distant distribution areas in the eastern Indian Ocean or SW Indian Ocean (Madagascar). This is the first record of B. omurai in the NW Indian Ocean.


2008 ◽  
Vol 11 (21) ◽  
pp. 2521-2524 ◽  
Author(s):  
P. Sadeghi ◽  
A. Savari ◽  
V. Yavari ◽  
M. Loghmani Devin

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