Showing 5 results for Hormozgan Province
Volume 1, Issue 2 (12-2015)
Abstract
This study was carried out to determine the species of the subfamily Hormiinae in Hormozgan province (Southern Iran), during February 2011–July 2013. Malaise traps, sweep nets and light traps were used to obtain adult specimens from various habitats in Hormozgan province. Five species were collected and identified of which Pseudohormius turkmenus Tobias & Alexeev, 1973 is newly recorded from Iran. The subfamily Hormiinae is reviewed and a key is provided for identification of Iranian species.
P. Nourozifard , S. Mortazavi , S. Asad, N. Hassanzadeh ,
Volume 8, Issue 1 (3-2019)
Abstract
toxicology. Considering the specific conditions of the Persian Gulf and the impact of pollutants, the aim of the present study was to evaluation of toxic elements bioavailability from the total amount of surface sediments in the Persian Gulf.
Materials & Methods: In the present study, the total concentration and bioavailability fraction of copper, lead, zinc, cadmium, nickel, and chromium were measured at 14 coastal stations of Hormozgan province and Qeshm island. Nitric acid and perchloric acid were used to measuring the total concentration and K protease enzyme solution was used to measuring the bioavailable fraction.
Findings: Zinc and chromium have the highest mean of total concentration, respectively. Qeshm island has more pollution than Hormozgan. The higher bioavailability and higher percentage of components were observed in lead and chromium than the other elements. With increasing concentrations of lead, chromium, and copper, the bioavailability of these elements also increased. As well as, zinc and nickel showed the lowest bioavailability. The concentration of copper, lead, and nickel was also higher than the sediments world average and the WHO / US EPA maximum, and the nickel concentration was above the ERM, PEL, and SEL.
Conclusion: Due to the low accuracy of determining the total concentration of metals in sediment toxicity for aquatics and the need to pay attention to bioavailability fraction, the probability of ecological risk of lead and chromium elements is higher than the other elements for aquatics of Persian Gulf. Zinc and nickel, have the lowest risk to the environment despite the high total concentration.
Seyedeh Laili Mohebbi-Nozar, Mohammad Sediq Mortazavi, Fereshteh Seraji, Behnam Daghooghi, Reza Dehghani, Golamali Akbarzadeh,
Volume 9, Issue 2 (4-2020)
Abstract
The aim of the present study was to identify the phytoplankton species which producing domoic acid and okadaic acid toxins in coastal waters of Banar Abbas city, and to determine the concentration of domoic acid and okadaic acid toxins in water and shellfish samples.Water sampling was performed in winter 2015 and summer 2016 from coastal areas overlooking the discharge of municipal and industrial effluents. Shellfish were collected from the coasts of Bandar Abbas and Bandar-e- Lengeh. Phytoplankton toxins were measured by kit method and instrumental analysis based on ELIZA method.Pseudonitzschia delicatissima, Pseudo-nitzschia pungens and Pseudo-nitzschia seriata were identified in the production of domoic acid, while Dinophysis caudate and Prorocentrum Lima were recorded as okadaic acid producers in the coastal waters of Bandar Abbas. Water-soluble okadaic acid showed significantly higher concentrations than domoic acid. Instudied shellfish samples (Circenita callipyga, Barbatia candida, Telescopium telescopiumandThalessa savignyi), the measured concentrations of okadaic acid ranged from 59.8 ± 2.38 to 121.96 ± 28.25 μg / kg. This value for domoic acid was from 0.85 to 83.59 ± 38.72 μg / kg.Compared to the guideline values, the observed concentrations of okadaic acid and domoic acid toxins in the studied shellfish were lower than the allowable level. But this value was recorded for the water-soluble domoic acid above the allowable value, which requires continuous monitoring to achieve the quantitative and qualitative pattern of phytoplankton toxins in order to support the safety of the marine ecosystem users in Hormozgan province.
Volume 10, Issue 3 (10-2022)
Abstract
Aims: In this study, more expedition work has been done to clarify distribution map of the Bungarus persicus. In addition, providing more specimens to confirm occurrence of the species.
Materials and Methods: The Persian Krait, Bungarus persicus, was described based on two specimens from Baluchistan, southeastern Iran. On 5 September 2020, collected from the Tidar region, Bashagard, Hormozgan Province, southern Iran. Also, another road killed individual, was found at the same location. Further evidences provided that indicate the local population of Bungarus persicus in southeastern Iran belongs to the Bungarus sindanus complex.
Conclusion: However, further molecular studies on Iranian Bungarus are necessary to clarify the species validity of Bungarus persicus and evaluate its similarity with the other congeners.
Shiva Aghajari Khazaei, Reza Dehghani, Arash Haghshenas, Gholam Ali Akbarzadeh Chomachaei, Siamak Behzadi, Mohammad Darvishi,
Volume 12, Issue 3 (9-2023)
Abstract
The present study was conducted in order to obtain the necessary information on the diversity, abundance and distribution of macroinvertebrates, as well as to investigate the grazing status of batoid fishes (stingrays) from benthic macroinvertebrtes in coastal waters of Hormozgan province. For this purpose, sampling was done in the years 2017 and 2018 and once every year in the autumn season. At the end of the identification process, a number of 125 genus and 104 species belonging to 85 families, 31 classes, 9 orders, and 7 phyla were successfully identified. Results revealed that Malacostraca was the frequent order in the studied area. In order to investigate the possible relationship between composition and abundance of benthic macroinvertebrte and stingrays, CCA analysis was employed. Results of stomach content of stingrays revealed that in the diet of M. randall, crustacean (93.25 %IRI) has the highest amount. This pattern was the same for M. gerrardi and H. walga. However, in M. gerrardi, bivalvia were in the first place of importance (31.33 %IRI). Also, trophic level analysis was done for three species which shows all species are Mesopredators that place in the same level of food web. According to the mentioned cases, some benthic macroinvertebrates identified in this research have a significant relationship with the benthic fishes, which requires more studies to investigate their relationship.
