Iranian Journal of Ichthyology最新文献_第3页

Temporal variability of economic fish assemblage of the Northern Bay of Bengal in relation to its environment 孟加拉湾北部经济鱼类群落与其环境的时间变异性

Iranian Journal of Ichthyology Pub Date : 2021-05-14 DOI: 10.22034/IJI.V8I2.516

Sachinandan Dutta, S. Paul

引用次数: 3

Reproduction of Sefidrud stone loach, Oxynoemacheilus bergianus (Cypriniformes: Nemacheilidae) in Kordan River of Namak basin, Iran 伊朗Namak流域Kordan河Sefidrud石泥鳅Oxynemachilus bergianus的繁殖

Iranian Journal of Ichthyology Pub Date : 2021-05-13 DOI: 10.22034/IJI.V8I2.543

Y. Keivany, Mohammad Reza Kamaloo

{"title":"Reproduction of Sefidrud stone loach, Oxynoemacheilus bergianus (Cypriniformes: Nemacheilidae) in Kordan River of Namak basin, Iran","authors":"Y. Keivany, Mohammad Reza Kamaloo","doi":"10.22034/IJI.V8I2.543","DOIUrl":"https://doi.org/10.22034/IJI.V8I2.543","url":null,"abstract":"The Sefidrud stone loach/Berg loach Oxynoemacheilus bergianus is native to the Eurasia and little is known about this species. Some biological characteristics of the spices were examined in 358 specimens collected monthly from the Kordan River in Alborz Province, by dip and seine nets during September 2013 to August 2014. The total length range was 32.36-74.36mm (50.95±10.3SD), and the total weight range was 0.31-4.06g (1/12±0.68SD). The maximum age of the specimens, based on otoliths, was 5 + years for females and 4 + years for males. Based on macroscopic gonad observation, the age of maturity was 2 + for females and 1 + for males. Sex ratio was 1M:0.9F, maturation cycle consisted of five stages. The gonadosomatic index indicated that reproduction of the fish in the river system occurred between March and June, with the highest average value of 9.47 for males in April and 13.42 for females in May. Oocyte diameter ranged from 0.15 to 1.33mm, with a mean value of 0.44mm. Absolute fecundity ranged between 360 and 2560 eggs, with a mean of 1130±670 eggs. Absolute fecundity and total length (r 2 = 0.58) and total weight (r 2 = 0.66) were moderately correlated. The mean relative fecundity was 580±190 eggs per gram of body weight. Therefore, O. bergianus is a species with a premature sexual maturity, high fecundity than other loaches and reproduction happen gradually in March to June.","PeriodicalId":14599,"journal":{"name":"Iranian Journal of Ichthyology","volume":"8 1","pages":"95-103"},"PeriodicalIF":0.0,"publicationDate":"2021-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46256970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The use of otolith morphometry as an indicator for the size increase of Periophthalmodon septemradiatus (Teleostei: Gobiiformes) living along the Bassac River, Vietnam 使用耳石形态测量法作为生活在越南巴萨克河沿岸的隔辐射眼周虫（Teleostei:Gobiformes）体型增加的指标

Iranian Journal of Ichthyology Pub Date : 2021-05-10 DOI: 10.22034/IJI.V8I2.509

Q. Dinh, T. Nguyen, L. T. Tran

引用次数: 4

Food and feeding habits of the endemic fish, Hypselobarbus thomassi (Day, 1874) in the Kallada River, Kerala, India 印度喀拉拉邦Kallada河的特有鱼Hypselobarbus thomassi (Day, 1874)的食物和摄食习性

Iranian Journal of Ichthyology Pub Date : 2021-05-06 DOI: 10.22034/IJI.V8I2.459

C. R. Renjithkumar, Roshni Kuttanellor, Madhusoodana Kurup Balakrishnan

{"title":"Food and feeding habits of the endemic fish, Hypselobarbus thomassi (Day, 1874) in the Kallada River, Kerala, India","authors":"C. R. Renjithkumar, Roshni Kuttanellor, Madhusoodana Kurup Balakrishnan","doi":"10.22034/IJI.V8I2.459","DOIUrl":"https://doi.org/10.22034/IJI.V8I2.459","url":null,"abstract":"The feeding habits of the endemic cyprinid fish, Hypselobarbus thomassi (Day, 1874) was studied based on the monthly sampling in the Kallada River, Kerala, India from April 2010 to March 2011. Gut contents of 183 fish specimens were analysed and quantified using occurrence and volumetric methods. Analysis of the gut contents showed that semi-digested plant matter (22.11%) was the most preferred food item of the fish followed by Bacillariophyceae (19.80%), Chlorophyceae (19.38%), semi-digested animal matter (11.21%), soil particles (9.20%), seeds of plants (6.70%), Cyanophyceae (5.51%) and miscellaneous items (6.08%). The results indicated that H. thomassi is an omnivorous-stenophagic-column feeder. The gastrosomatic index (GaSI) ranged from 3.28-7.33 with an increment from August to November coincides with the spawning season and energy preservation for gonadal development. The information on feeding ecology of H. thomassi , a critically endangered fresh water fish from Western Ghats biodiversity hotspot would be useful towards formulating proper conservation plan for the species in its natural range.","PeriodicalId":14599,"journal":{"name":"Iranian Journal of Ichthyology","volume":"8 1","pages":"76-82"},"PeriodicalIF":0.0,"publicationDate":"2021-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49127096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molecular confirmation of lumpy skin disease virus (LSDV) in cattle’s blood and skin at some slaughterhouses in Baghdad Governorate, Iraq 在伊拉克巴格达省一些屠宰场的牛血液和皮肤中发现肿块性皮肤病病毒(LSDV)的分子证实

Iranian Journal of Ichthyology Pub Date : 2021-04-28 DOI: 10.22034/IJI.V8I0.616

Luma Foad Manher AL-ETHAFA

引用次数: 0

Analysis of TNF alpha and Interlukin-1β genes in Oreochromis niloticus: inflammatory responses induced by Myxobolus spp. and Trichodina spp. nilochromis Myxobolus spp和Trichodina spp诱导炎症反应的TNF - α和interleukin -1β基因分析。

Iranian Journal of Ichthyology Pub Date : 2021-04-04 DOI: 10.22034/IJI.V8I1.450

Nehal A. Younis, M. Attia, N. Saleh

{"title":"Analysis of TNF alpha and Interlukin-1β genes in Oreochromis niloticus: inflammatory responses induced by Myxobolus spp. and Trichodina spp.","authors":"Nehal A. Younis, M. Attia, N. Saleh","doi":"10.22034/IJI.V8I1.450","DOIUrl":"https://doi.org/10.22034/IJI.V8I1.450","url":null,"abstract":"The cultured and wild specimens of the Nile tilapia ( Oreochromis niloticus ) are often infected by different hazardous as helminths; protozoa and arthropod which cause various degrees of diseases in such fish. The aim of this study was to record the most common protozoan parasites in the Nile tilapia in Egypt, and also assessment of the immunological changes through analyzing two genes (Tumor Necrosis Factor alpha, TNF-α; and Interlukin-1β, IL- 1β) in the infected fishes using qRT-PCR. Therefore, each fish individual was examined carefully, and smears were prepared from each organ; stained with Giemsa dye and examined under a light microscope. qRT-PCR was performed on infected tissues (skin and gills) by various collected parasites. Four trichodinid species ( Trichodinella heterodentata , T. centrostrigeata , T. epizootica , Paratrichodina Africana ,) were isolated and identified; also two Myxobolus spp. ( M. tilapiae and M. heterosporous ) were fully described. In skin, TNF-α in M. tilapiae and mixed groups were nearly similar and were significantly higher than Trichodina spp. group. IL-1β of M. tilapiae group was significantly lower than that of the mixed group; Trichodina spp. and control groups. In gills, TNF-α of the mixed group showed the significantly highest value. IL-1β was nearly same in all groups. We conclude that the skin is nearly higher in upregulation of the two studied genes comparing to the gills analysis, since it is considered as the first barrier in fish and contains many immunological defined cells.","PeriodicalId":14599,"journal":{"name":"Iranian Journal of Ichthyology","volume":"8 1","pages":"30-40"},"PeriodicalIF":0.0,"publicationDate":"2021-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45795437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Documentation of the Turkestan barbel, Luciobarbus conocephalus (Kessler, 1872) in the Iranian part of Hari River basin (Teleostei: Cyprinidae: Barbinae) 哈里河流域伊朗部分的突厥斯坦barbel，Luciobarbus conocephalus（Kessler，1872）的文献（Teleostei：Cyprinidae:Barbinae）

Iranian Journal of Ichthyology Pub Date : 2021-03-31 DOI: 10.22034/IJI.V8I1.615

S. Eagderi, A. Mouludi-Saleh, Vali Hosseini, H. Mousavi-Sabet

引用次数: 0

Morphological analysis of Homaloptera gymnogaster Bleeker, 1853 (Family: Balitoridae) from different elevations in Central Sumatra, Indonesia 印度尼西亚苏门答腊岛中部不同海拔地区人翅目裸子蝶Bleeker，1853（科：裸子蝶科）的形态分析

Iranian Journal of Ichthyology Pub Date : 2021-03-30 DOI: 10.22034/IJI.V8I1.537

Robi Cahyadi, I. J. Zakaria, D. Roesma

{"title":"Morphological analysis of Homaloptera gymnogaster Bleeker, 1853 (Family: Balitoridae) from different elevations in Central Sumatra, Indonesia","authors":"Robi Cahyadi, I. J. Zakaria, D. Roesma","doi":"10.22034/IJI.V8I1.537","DOIUrl":"https://doi.org/10.22034/IJI.V8I1.537","url":null,"abstract":"Homaloptera gymnogaster (Family: Balitoridae) is an endemic freshwater fish in Sumatra, Indonesia that can be found up until a high elevational aquatic body. There is no previous report about a thorough study on its morphological variations from its various populations. In this study, 47 individuals H. gymnogaster were collected using random sampling from five different elevations (Sikai River at 1996, 1552, 1420, Batang Gumanti on 1531, and Matur River on 1097 m asl), on which 53 morphological characters measured. The result indicated that 41 characters significantly varied with the Kruskal-Wallis test ( P <0.05%), which consist of 29 morphometric and 12 meristic characters. The Mann-Whitney U test (with <0.05% standard confidence) confirmed the high differentiation on morphometric and meristic characters among the study sites. The Principal Component Analysis (PCA) plot hinted that albeit populations in Sikai River divided come from different elevations, were still categorized as the same group. On the contrary, Batang Gumanti and Matur River site separated into different groups. This study concluded that differentiation of morphological characters on H. gymnogaster was influenced by current velocity and river size.","PeriodicalId":14599,"journal":{"name":"Iranian Journal of Ichthyology","volume":"8 1","pages":"41-51"},"PeriodicalIF":0.0,"publicationDate":"2021-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48137145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Some biological aspects of Asian stinging catfish, Heteropneustes fossilis (Bloch, 1794) (Teleostei: Siluriformes) in a wetland ecosystem 湿地生态系统中的亚洲刺鲶鱼化石（Bloch，1794）的一些生物学方面

Iranian Journal of Ichthyology Pub Date : 2021-03-23 DOI: 10.22034/IJI.V8I1.336

M. Islam, M. Y. Hossain, M. Rahman, O. Rahman, M. S. Sarmin, D. Khatun, A. Nima, Z. Mawa, Md. Ashekur Rahman, S. Tanjin, Most. Farida Parvin

引用次数: 3

Length-weight relationships of five fish species from the inland waters of Oman 阿曼内陆水域五种鱼类的长度-重量关系

Iranian Journal of Ichthyology Pub Date : 2021-03-23 DOI: 10.22034/IJI.V8I1.607

S. A. Jufaili, G. Sayyadzadeh, L. Jawad, H. Esmaeili

引用次数: 0