2024-03-29T17:36:25+03:30 http://jair.gonbad.ac.ir/browse.php?mag_id=25&slc_lang=fa&sid=1
25-351 2024-03-29 10.1002
Journal of Applied Ichthyological Research JAIR 2423-6349 10 10.22034/jair 2019 6 3 Morphological diversity of Sillaginid larvae (Perciformes: Sillaginidae) based on Geometric Morphomeyrics Analysis in the northern Persian Gulf, Bushehr Province Rasul Ghorbani rasulghorbani@gmail.com Mohammad Amini mamini57@yahoo.com The aim of this study was to evaluate the efficiency of geometric morphometrics for describing the body shape of fish larvae, and identifying them to speciess. Species of sillaginid fishes (Perciformes: Sillaginidae) were chosen as the model group, as the larval stages in this family are particularly difficult to identify. 47 individuals collected from the central creeks of Bushehr province between June 2013 and April 2014 using bongo net. The individuals were first divided to three developmental stages, preflexion, flexion and postflexion. Then flexion and postflexion larvae were divided into three groups, depending on 34, probably 34 and 38 myomers. The larvae with 34 myomeres were identified as Sillago sihama. After counting myomers, 8 landmarks were digitized on pictures taken from left side of specimens. Data were analyzed using PCA and DFA after procrustes superimposition and data standardization. There are some meaningful shape differences between three groups (P<0.001), especially between 34 myomers group and other two groups. The preanal length in 34 myomers group was shorter than that of 38 and probably 34 myomers groups. The body height in 38 myomers group was higher than probably 34 myomers group. Therefore, geometric morphometrics is a promising tool for identifying fish larvae to species level. Sillaginids Species Identification Geometric Morphometric Bushehr 2019 3 01 1 18 http://jair.gonbad.ac.ir/article-1-351-en.pdf
25-533 2024-03-29 10.1002
Journal of Applied Ichthyological Research JAIR 2423-6349 10 10.22034/jair 2019 6 3 Population dynamic of Mudskipper Periophthalmus waltoni Koumans, 1941 in mongrove forests Khamir port in Hormozgan province Leila Abdoli liliabdoli2000@yahoo.com Ahmad Savari savari53@yahoo.com Mohammad taghi rounagh mt.ronagh@yahoo.com Asghar Abdoli asabdoli@yahoo.com Ehsan Kamrani wza47@yahoo.com This study was conducted on population dynamic of Periophthalmus waltoni by using length frequency data of 1225 specimens of this species that were collected by hand and dip net from mangrove forest khamir port in the hormozgan province during September 2015 to June 2016. Growth of parameters were estimated using ELEFAN programmer of FiSAT II software. The growth parameters of von Bertalanffy equation were estimated as: L∞: 13.75 cm and K: 0.68 year -1 t0: -0.29 for males and 13.75 cm and 0.51 year -1 t0: -0.39 for females. The mean length of P. waltoni specimens caught in the study area 8.92±0.05 cm for males and 9.05±0.06 for females. The weight means for males and females were 7.27±0.13 gr and 7.68±0.17respectively. The b was 2.91 and 3.04 for male and female. The length-weight relationship for males and female were W=0.0114 L2.911(r2=0.957) and W=0.0087L3.041 (r2=0.955) respectively. Maximum age was estimated to be 6+ years. Tow chohorts were distinguished. The maximum recruitment was in April at 22.33% for males and in July at 13.97 for females. The natural mortality coefficient was 1.58 and 1.4 in female and male. Age and growth Periophthalmus waltoni Persian Gulf Hormozgan province. 2019 3 01 19 34 http://jair.gonbad.ac.ir/article-1-533-en.pdf
25-456 2024-03-29 10.1002
Journal of Applied Ichthyological Research JAIR 2423-6349 10 10.22034/jair 2019 6 3 A study on abundance and biodiversity of fishes in Sirvan River in Kurdistan Mehrdad Hasankhani mardin0622@gmail.com Yazdan Keivany keivany@cc.iut.ac.ir Ahmadreza Jabaleh a.jabaleh@gau.ac.ir Mojtaba Pouladi mojtaba_fishery1987@yahoo.com Nasrollah Mahboobi Soofiani soofiani@cc.iut.ac.ir The diversity of fish in Sirvan basin was studied in spring and summer of 2011. Twelve stations were selected on the basis of similarity, the confluence of tributaries and human intervention. Some 1454 fish specimens were collected and analyzed among which a total of 17 species belonging to four families Cyprinidae, Salmonidae, Nemacheilidae and Gobiidae were identified. Species richness was not significantly different in the seasons (P> 0.05), but there were significant differences between the seasons species diversity and species diversity in different stations in any season (P <0.05). About 98% of the specimens were in the family Cyprinidae. The lowest frequencies was in Salmonidae (0.07%). About 97% of the species were native. The Mastacembelidae species, Mastacembelus mastacembelus, was observed in Palangan station. The most frequent species was Alburnus mossulensis and the less frequent ones were Carassius auratus, Lucius pectoralis and Oncorhynchus mykiss. In this study, six exotic species, Ctenopharyngodon idella, Carassius auratus, Rhinogobius cf. similis, Hemiculter leucisculus, Pseudorasbora parva and Oncorhynchus mykiss were captured. The highest diversity index (2.48), species richness (1.72) and dominance (0.79) were observed in summer. Diversity freshwater fish Sirvan Kordestan Iran 2019 3 01 35 50 http://jair.gonbad.ac.ir/article-1-456-en.pdf
25-424 2024-03-29 10.1002
Journal of Applied Ichthyological Research JAIR 2423-6349 10 10.22034/jair 2019 6 3 Effects of lethal and sub lethal concentrations of malation in gold fish (Carassius auratus): haematology, liver histology and liver enzymes z.h.kashani@gmail.com mrimanpoor@yahoo.com zadmajid@gmail.com mazandarani57@gmail.com In the present study the effects of  lethal and sub- lethal levels of malation in male gold fish, Crasius auratus, have been studied. In this regard, first of all, fish were exposed with lethal concentration levels of malation (15-23 mg/l) and 96 h median lethal concentration, LC50, calculated as 12.5 mg/l for this fish. Then fish were exposed to sub-lethal  levels including 0.1 LC50 ( 2.35 mg/l ) and 0.01 LC50 (0.235 mg/l) of  malation for 7 months. Then effects of this toxicant on hematocrit, hemoglobin, the number of  red blood cell and white blood cell, MCH, MCHC, MCV, alanin amino taransferas, alkalin phosphatase, asparat amino transferas, total protein, testestron and glucose of blood were evaluated. hematocrit, hemoglobin, the number of  red blood cell and white blood cell, MCH, MCHC and MCV were significant (p<0.05) between experiment treatments as fish which were exposed to the concentration of  0.1 LC50  of malathion toxicant had lower hematocrit, hemoglobin, the number of  red blood cell and white blood cell, MCH and MCHC compare to control group. The lowest levels of alanin amino taransferas, total protein, testestron and glucose were observed in 0.1 mg/liter and minimum levels of alkalin phosphatase and asparat amino transferas found in control group.  Histopathological study were characterized by hepatocyte degeneration, defuse hepatocyte vacuolization, accumulation of melanomacrophage and focal necrosis in the liver of fish that exposed with concentration of 0.1 LC50. On the other hand this fish that exposed with concentration of  0.01 LC50  showed moderate pathologic signs in the liver. Malathion Histopathology hematological parameters gold fish. 2019 3 01 51 62 http://jair.gonbad.ac.ir/article-1-424-en.pdf
25-411 2024-03-29 10.1002
Journal of Applied Ichthyological Research JAIR 2423-6349 10 10.22034/jair 2019 6 3 Survey on susceptibility of common carp, Cyprinus carpio, to exposure with Yersinia ruckeri mazandarani57@gmail.com vjafari110@yahoo.com kourosh_a_ca@yahoo.com In the present study pathogenicity of Yersinia ruckeri have been studied in common carp, Cyprinus carpio, fingerlings. In this regard, 120 common carp fingerlings with average weight of 13 ± 2 divided into 10 aquariums (12 fish per aquaria) and were reared for 28 for acclimatization. In this study one control and 4 treatment groups (with two replicates for each one) were considered. Fish of treatment groups were challenged with Yersinia ruckeri  via intra peritoneal injections at dosage of 5.4×108, 5.4×107 , 5.4×106, 5.4×105cells/fish. Control fish just received sterile normal saline (0.9% NaCl) via intra peritoneal injection. According to the results mean lethal concentration (LC50) of this bacterium after 7 days and until 21 days post challenge calculated as 2.8 ×108 cell/fish. Congestion in internal organs especially in kidney and accumulation of bloody fluid in the abdominal cavity were the most clinical signs in sick fish. Gill histopathology was characterized by hyperplasia and epithelial lifting in secondary lamella, kidney histopathology was characterized by congestion and bleeding in interstitial tissue, accumulation of fluid in tubular lumens and tubule necrosis and so in the liver congestion and hepatocyte necrosis were recorded as the most histological signs  Yersinia ruckeri pathogenicity histopathology LC50 2019 3 01 75 84 http://jair.gonbad.ac.ir/article-1-411-en.pdf
25-453 2024-03-29 10.1002
Journal of Applied Ichthyological Research JAIR 2423-6349 10 10.22034/jair 2019 6 3 The investigation on variation of ionic and hormone indices in wild and wild cultivated carp brood stocks (Cyprinus carpio Linnaeus,1758) sakineh yeganeh skyeganeh@gmail.com Kamran Aghili k_aghili33@yahoo. com kourosh Amini Kourosh_a_ca@yahoo.com In this trial, changes of metabolically indices such as cortisol, glucose, vitellogenin in blood, testosterone, progesterone, 17-β estradiol in females and 11-ketotestosteron and cortisol in males carp (Cyprinus carpio) in Bandar Turkmen (South of the Caspian Sea) were investigated. The results (independent t-test) indicated that the amount of cortisol and progesterone in wild females were significantly higher than wild cultivated females (P<0.05).  Also, the level of vitellogenin was significantly higher in wild females than wild cultivated females (P<0.05). However, the levels of 17-β estradiol, testosterone, glucose and calcium had no significant difference between wild and wild cultivated females (P>0.05). Also, the results of this study showed that the level of 11-ketotestosteron in wild male was significantly higher than wild cultivated male (P<0.05), and the level of cortisol in wild cultivated male was significantly higher than wild male (P<0.05). wild carp metabolic parameters. Sexual Maturity Hormones. Vitellogenin 2019 3 01 85 98 http://jair.gonbad.ac.ir/article-1-453-en.pdf
25-413 2024-03-29 10.1002
Journal of Applied Ichthyological Research JAIR 2423-6349 10 10.22034/jair 2019 6 3 Effects of different levels of milkweed seed powder (Calotropis procera) in rainbow trout (Oncorhynchus mykiss Walbaum, 1792) diet on growth, feed efficiency ratio and intestinal microbiota hamidreza Ahmadnia Motlagh hamid.ahmadnia@gmail.com Omid Safari omid_safary@yahoo.com This study was conducted to investigate the potential of milkweed seed powder (Calotropis procera) to be included in the diet of rainbow trout (Oncorhynchus mykiss) in five levels 1, 2, 3, 4 and 5 percent plus control (zero percent) in a completely randomized design triplicated. To perform the test, 3,600 rainbow trout fries (11.5±3.64 g) were distributed in 18 raceways. After two weeks of acclimatization, the fish were fed with six experimental diets for 56 days. Growth indices, hepatosomatic index, gastro somatic index, feed efficiency ratio as well as whole body chemical composition, survival and feed conversion ratio were studied. The results showed that an increase in milkweed seed powder up to 4%, resulted in a significant increase in specific growth rate and intestinal Lactic acid bacteria count compared to control (P<0.05). The increase of Protein efficiency ratio by increasing milkweed seed powder at the rate of 3 to 5% showed a significant difference with control, but there was no significant difference between experimental groups. The best results of survival rate, feed conversion ratio, hepatosomatic index and gastro somatic index were achieved in the treatments receiving 2, 3, 4, and 5% milkweed seed powder (P<0.05). The results showed that an inclusion of maximum 3% milkweed seed powder as an herbal feed additive could be an appropriate candidate in the diet of rainbow trout. Rainbow trout milkweed seed powder Growh intestinal microbiota 2019 3 01 99 114 http://jair.gonbad.ac.ir/article-1-413-en.pdf
25-165 2024-03-29 10.1002
Journal of Applied Ichthyological Research JAIR 2423-6349 10 10.22034/jair 2019 6 3 Effect of stocking density and feeding rate on growth, hematological parameters and water quality in rearing of juvenile Bluga (Huso huso) Zeid Ahmadi zeidahmadi1358@yahoo.com Reza Akrami akrami202@yahoo.com Mehdi Kharkan Ghamsari aliabadi2004@yahoo.com Growth, hematological parameters and water quality for great sturgeon (Huso huso), were determined at three different stocking densities and three feeding rates. Stocking density were 1, 1.5 and 2 kg m-2 and feeding rates were 1, 2, and 3% body weight day-1. Sturgeon were offered to 18 tanks and 3×3 experimental design was used with two replicates per treatment. Initial average body weights of the fish were 25 ± 1.5g and were hand-fed a pelleted commercial feed (44 % protein, 20% fat, and 7% ash) twice daily throughout the experiment period. After about 7 weeks of feeding, optimal feeding rate and growth performance was observed in 1 kg m-2 and 3% of body weight day-1 and there were significant difference interaction in stocking density and feeding rate between treatments (P<0.05). The results demonstrated that hematological parameters were not significantly different in all groups (P>0.05). No mortality was abserved during the experiment. Water quality including ammonia (NH3) and dissolved oxygen (DO) showed significant differences (P<0.05) among the treatments affected by different densites and feeding rates, while temperature and pH showed no significant difference (P>0.05). Results show that the optimum feeding rate and stocking density for fishes weighing 25 to 155 would appear at a feeding rate at 3% body weight day-1 with the stocking density 1 kg m-2. stocking density feeding rate growth hematological parameters water quality Bluga (Huso huso) 2019 3 01 115 128 http://jair.gonbad.ac.ir/article-1-165-en.pdf
25-373 2024-03-29 10.1002
Journal of Applied Ichthyological Research JAIR 2423-6349 10 10.22034/jair 2019 6 3 Digestive enzymes activity, body composition and biochemical blood factor of juvenile binni fish fed soybean meal and baker\'s yeast mohammadinafchi1366@gmail.com azarmhamid@gmail.com yavarivahid@yahoo.com salatia@gmail.com n_zanguee@yahoo.com In this study, the effect of replacement of fish meal with soybean meal and baker's yeast on activity of digestive enzymes, body composition and biochemical blood factor of juveniles (Mesopotamichthys sharpeyi) were studied. Five treatments consisted of a control treatment (no Soybean meal and yeast) and treatments containing 25%, 50%, 75% and 100% replacement of fish meal with soybean meal and baker's yeast with ratio of 1:1 in triplicates were examined. Each replicate were stocked with 40 fish with initial average weight of 4.40 ± 0.29 g in 300 liter tank with a volume of 250 liter of water. Experimental fish were fed to satiation triple daily for 56 days. At the end of the period, the activity of digestive enzymes were not significantly different compared with control group (P>0.05).   The carcass biochemical composition of fish in different treatments were not significantly different compared with the control group (P>0.05). Triglycerides value of plasma were significantly decreased and total cholesterol were significantly increased with replacement of fishmeal in diet compared with the control group (P <0.05). So, soybean meal and baker's yeast with same ratio can be used up to 100% instead of fish meal without negative effect in the diet of juveniles Mesopotamichthys sharpeyi. Fish meal Soybean meal Baker's yeast Replacement Mesopotamichthys sharpeyi 2019 3 01 129 142 http://jair.gonbad.ac.ir/article-1-373-en.pdf