animal biosystematic
seyedُ pourrabie; Shahrogh Pashaie Rad; Mahbobeh Hajirostamlo; Hasan Baroghie
Articles in Press, Accepted Manuscript, Available Online from 19 October 2014
Abstract
Abstract:
Different species of Syrphid flies are beneficial insects in nature and are important in agriculture. During a faunistic study on syrphid flies (Dip.:Syrphidae) on 2011 to 2012 of Jolfa region (East Azarbaijan province), one Merodon Meigen, 1803 species was collected. They were identified ...
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Abstract:
Different species of Syrphid flies are beneficial insects in nature and are important in agriculture. During a faunistic study on syrphid flies (Dip.:Syrphidae) on 2011 to 2012 of Jolfa region (East Azarbaijan province), one Merodon Meigen, 1803 species was collected. They were identified as Merodon latifemoris Radenkovic, based on morphological characters as a new species from Iran region.
In this study, species was collected, and transferred to the Laboratory of Entomology, in Islamic Azad University of Marand and was studied at the morphological character.
The syrphidae important organs such as legs, wings, thorax, abdomen and genitalia were examined. In this research isolated end of the tergit, and transferred in to KOH 10% for 24-12h and then transferred in to alchole 10%, so added one drope glycrin at study time, and was recognized by prestigious keys. Their figures and a simple diagnostic key were provided for their determination in this region.
Fisheries
Reza Dehghan; Mohammad Khalesi; Sohrab Kohestan Eskandari
Abstract
Beluga (Huso huso) is one of the most important commercial fish in the Caspian Sea, whose reproduction and breeding, as well as caviar extraction, are of special importance. This study was conducted to investigate the morphological analysis for non-invasive sex determination in this sturgeon species ...
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Beluga (Huso huso) is one of the most important commercial fish in the Caspian Sea, whose reproduction and breeding, as well as caviar extraction, are of special importance. This study was conducted to investigate the morphological analysis for non-invasive sex determination in this sturgeon species to replace the invasive methods in the event of appropriate outcomes. A total of 180 fish were biometried at the Sea Abzigostaran Center, Sari, within 2 weeks. The samples were then photographed and the photos were analyzed by the TPS (transection processing system) technique for sex determination. The ANOVA test showed homogeneity of morphormetric data. Leven's test showed that all the morphometric traits had uniform variances (P ≥ 0.05). The analysis of the distinctive function for morphometric traits indicated that 100% of both male and female beluga samples displayed their characteristics. Overall, the results of this test revealed that on average 100% of the males and females were grouped accurately, which indicates the separation of the sexes based on this test. The UPGMA dendrogram for morphological traits based on the mean correlation showed that the samples of beluga were partially distinguished from each other by gender. However, the TPS technique could distinguish the male and female beluga samples, thus, it could be considered a non-invasive method for the sex determination of sturgeon fish.
Yazdan Keivany; Sedigheh Mahmoodi; Salar Dorafshan; Mansoureh Malekian
Abstract
So far, 13 species were recently recognized in the Iranian basins. In the present study the variation among A. eichwaldii, A. namaki, A. idignensis, and A. nicolausi, A. qanati A. petrubanarescui has been investigated from morphological and molecular approaches. To study the morphological characteristic, ...
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So far, 13 species were recently recognized in the Iranian basins. In the present study the variation among A. eichwaldii, A. namaki, A. idignensis, and A. nicolausi, A. qanati A. petrubanarescui has been investigated from morphological and molecular approaches. To study the morphological characteristic, 144 specimens of these six species were used, on which 22 morphometrics were measured. Nine meristics characteristics were counted. Analysis of variance (ANOVA), discriminant analysis, and principal component analysis was performed. In the molecular studies, sequences of the mitochondrial gene, cytochrome b from six species were sequenced and analyzed. The morphological results of the data showed a high similarity among species, but could separate A. nicolausi and A. idignensis according to the PC1. Also A. idignensis and A. petrubanarescui are more similar based on the PC2. Moreover, based on meristic characteristics which were relatively similar, again A. nicolausi and A. idignensis could be separated by the first component. The phylogenetic analysis using Maximum Likelihood (ML) and Maximum-Parsimony (MP) methods supported the monophyletic status of the six species, suggesting their status as different species. The results of the molecular analysis showed that A. eichwaldii and A. petrubanarescui have the most similarity (about 99%) and the A. idignensis has the maximum difference (about 85%) with the other species. These results justify the results of morphometric analysis.
Atta Mouludi-Saleh; Soheil Eagderi; Keivan Abbasi
Abstract
This study was conducted to study sexual dimorphism of Caspian kutum, Rutilus kutum collected from the Rudsar coast and Anzali Wetland, Guilan Province. After collecting, the left lateral face of the fresh specimens were photographed, then 13 Landmark-points were defined and digitized using tpsDig2 software. ...
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This study was conducted to study sexual dimorphism of Caspian kutum, Rutilus kutum collected from the Rudsar coast and Anzali Wetland, Guilan Province. After collecting, the left lateral face of the fresh specimens were photographed, then 13 Landmark-points were defined and digitized using tpsDig2 software. Generalized procrustes analysis was performed to eliminate non-shape effects, including size, direction and position. Then date was analyzed using principal component analysis (PCA) and discriminant function analysis (DFA) based on P-value obtained from Hoteling’s t-test. The results showed a significant difference in the body shape of the male and female (P<0.05). The observed differences confirm the presence of the sexual dimorphism in the study species during reproductive season. The observed morphological can be shown presence of the sexual dimorphism in this species. Based on the findings, the females have deeper body and smaller head, which can related to reproductive performance of each sex.
Ebrahim Kazemi; Gholamreza Niknam
Abstract
Abstract Dorylaimids contain the most number of nematodes and take part in various aspects of ecosystem. For this reason and for study on dorylaimid fauna, 70 soil samples were collected from the rhizosphere of different vegetations in Kahaq region, Maragheh, East Azarbaijan province during 2014 ...
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Abstract Dorylaimids contain the most number of nematodes and take part in various aspects of ecosystem. For this reason and for study on dorylaimid fauna, 70 soil samples were collected from the rhizosphere of different vegetations in Kahaq region, Maragheh, East Azarbaijan province during 2014 and 2015. Then sampels were transfered to laboratory. Nematodes were extracted by centrifugal flotation technique and transferred to glycerin according to the modified De Grisse (1969) method. The permanent slides were prepared from the extracted nematodes. The nematodes were identified under light microscope. The morphometric data were taken using a drawing tube attached to the microscope. For identification of nematode speciments, species keys and references were used. As the results, Aulolaimoides elegans, Crassolabium cylindricum, C. rhopalocercum, Diphtherophora tenera, D. communis, Dorylaimoides elegans, D. limophilus, Ischiodorylaimus cognatus, I. paraugandanus, Margollus bokanicus, Mesodorylaimus potus, Metaxonchium persicum, Opisthodorylaimus sylphoides, Oxydirus oxycephaloides, Paravulvus microdontus, Pungentus engadiensis, Syncheilaxonchium nairi, Thornia propinqua, T. parathermophila and Tylenchilaimus minimus were identified. M. potus and the genus Thornia are new records for Iran nematode fauna.
Hamed Ostovari; Haji Gholi Kami
Volume 6, Issue 3 , March 2018, , Pages 143-152
Abstract
This research was conducted to preliminary biological study of Eastern Persian toad Bufotes oblongus, in Ghasabe qanats of Gonabad township in Razavi Khorasan province and dam and seasonal spring of Mahvid village and Kowran and Baladeh qanats of Ferdows Township and Mohammad Abad qanats of Qaen township ...
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This research was conducted to preliminary biological study of Eastern Persian toad Bufotes oblongus, in Ghasabe qanats of Gonabad township in Razavi Khorasan province and dam and seasonal spring of Mahvid village and Kowran and Baladeh qanats of Ferdows Township and Mohammad Abad qanats of Qaen township in South Khorasan province at April 2012 to July 2013. Were collected Larvae of these species with the help of hand net (with openings of 1 mm) during the day and collected all adult specimens by hand at the night. The important characteristic of this species is the lump downward of parotoid gland at the rear tympanic membrane and also the small size of tympanic membrane. The maximum length obtained from these species was 8.27 cm (for female) and the minimum length 5.59 cm (for male). In this species the ratio of legs to body size was 0.35 and the ratio of parotoid gland length to body size was 0.21. The results of this research showed in relation to the seasonal spring, there are the threatening factors of these species: polluting water ponds due to the entering of domesticated animal feces into the spawning and larval development place, using that as a drinking water supply and also water evaporation due to the heat. It appears to be a solution for protection of these vertebrate, making plan and carrying out educational projects to raise awareness people is necessary concerning to the amphibians role especially in semi-desert regions of the country.
Gilan Attaran-Fariman; Azadeh Beyg-Moradi; Hassan Zadeh-Abbas Shahabadi
Volume 5, Issue 4 , May 2017, , Pages 11-20
Abstract
Brittle stars belonging to family Ophiotrichidae and genus Ophiothrix are of common species in the intertidal zones and coral reefs of tropical region. Members of genus Ophiothrix are well distributed in Chabahar Bay at northern coast of Oman sea. These species morphologically are very simillar to species ...
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Brittle stars belonging to family Ophiotrichidae and genus Ophiothrix are of common species in the intertidal zones and coral reefs of tropical region. Members of genus Ophiothrix are well distributed in Chabahar Bay at northern coast of Oman sea. These species morphologically are very simillar to species of genus Macrophiothrix because of that often separating them based on morphological characteristics is difficult. That is why their accurate classification requires detailed morphological and molecular studies simultaneously. Sampling was taken place in Tis (Chabahar Bay) to study the morphology and Phylogeny of brittle stars based on COI gene sequence. Morphologically, this species has a five-lobed disc, trapezoidal arm plates and rectangular abdominal plates both are granular. Also, according to the results of molecular analysis Ophiothrix sp. With 49% bootstrap is supported in the clade of genus Ophiothrix and shows a monophyletic relationship with members of this genus. Although it is weakly supported, it seems that this species is a new species which due to the lack of studies about brittle stars of this region remains unknown.
