Mohammad Ali Nematollahi

University of Tehran | UT · Department of Fisheries and Environmental Sciences

Microalgae can treat waste streams containing elevated levels of organic carbon and nitrogen. This process can be economically attractive if high value products are created simultaneously from the relatively low-cost waste stream. Co-production of two high value microalgal products, phycocyanin and polyhydroxybutyrate (PHB), was investigated using...

Assessing the water quality of rivers and their pollutants levels is needed for efficient planning to maintain these water systems and sustainable use of them. The present study was conducted to assess the water quality of the Balighli-Chai and Ghare-Sou Rivers, the main Rivers of Ardabil Province. The levels of dissolved oxygen (DO), biochemical o...

Balighli-chai and Ghare-Sou Dare Roud rivers are the main rivers of Ardabil province in Iran, which have had considerable alterations due to climatic changes and high water withdrawals. The present study was planned to assess the water quality condition of these rivers based on the presence and abundance indices of aquatic invertebrates macrofauna...

Many studies have shown enhanced production of single high value products from microalgal cultivation can be achieved by employing nutrient limitation and/or organic carbon supplementation. The possibility of exploiting multiple high value microalgal biosynthetic products has rarely been examined, even though it is widely acknowledged that such sys...

Aims: Antiviral activity and cytotoxicity effect of methanol and diethyl ether extracts from different parts of sea cucumber (Holothuria leucospilota) against HIV-1 were assessed on human oral epidermoid carcinoma cells (KB) and Human embryonic kidney 293T cells (HEK293T).Materials & Methods: Sea cucumber was collected at a depth of 10-30 m of Lara...

The present research was aimed to study the effects of different levels of synthetic astaxanthin on the reproductive performance of the Giant Freshwater Prawn (Macrobrachium rosenbergii). The study was carried out in three treatment and duplicate for 45days and 24 prawn was divided into treatment with 1:3 sex ratio. Experimental diet containing 50,...

Numerical abilities have been found to be adaptive in different contexts, including mating, foraging, fighting assessment and antipredator strategies. In species with parental care, another potential advantage is the possibility to adjust parental behavior in relation to the numerosity of the progeny. The finding that many fish vary their parental...

The effects of pharmacological waste on aquatic ecosystems are increasingly highlighted in ecotoxicology research. Many of these products are designed for human physiology but owing to the conservative nature of vertebrate evolution they also tend to have effects on aquatic organisms and fishes in particular when they find their way into aquatic sy...

Optimizing aquaculture production requires better knowledge of growth regulation and improvement in diet formulation. A great effort has been made to replace fish meal for plant protein sources in aquafeeds, making necessary the supplementation of such diets with crystalline amino acids (AA) to cover the nutritional requirements of each species. Ly...

In this data article we describe the coding sequence of two IGF-IR paralogues (IGF-IRa and IGF-IRb) obtained from gilthead sea bream embryos. The putative protein architecture (domains and other important motifs) was determined and, amino acid sequences alignment and phylogenetic analysis of both receptors together with IGF-IR orthologues from diff...

Background and Objective: Sea cucumber (Holothuria leucospilota) is used for food purposes and traditional medicine in the South East and East Asia. This study was done to determine the antiviral effect of methanolic extract, of Holothuria leucospilota species against HIV-1 virus. Methods: In this laboratory study, sea cucumbers were collected from...

This study was conducted to evaluate a temperature regime ranged from 15 to 30°C on survival, growth, life span and reproductive traits (reproductive period, clutch number, offspring number) of Phallocryptus spinosa from Iran. Newly hatched nauplii (N= 200 and 3 replicates per each treatment) were allocated into containers and maintained at various...

Activities of the main enzymes involved in digestion (pepsin, trypsin, amylase, lipase and alkaline phosphatase) in Sobaity sea bream were studied from hatching up to the juvenile stages (40 days after hatch, DAH). All enzyme activities except for pepsin were detected upon hatching, and their activity subsequently increased with age. Early presence...

در این مطالعه امکان جایگزینی زودهنگام غذای زنده با خشک از روز 25 (تیمار شاهد) به روز 18 (تیمار زودهنگام) پس از تفریخ و تأثیر آن در شاخص‌های رشد، نرخ بقا و کیفیت لارو ماهی صبیتی (Sparidentex hasta) بررسی شده است. برای اندازه‌گیری نرخ رشد تا پیش از آغاز آزمایش، نمونه‌برداری از لاروها در روزهای 0، 2، 4، 10، 14، 16 و 18 و بعد از آن در روزهای 25، 32 و 3...

A preference for the left-eye use during aggressive interactions has been widely reported in the literature, even though in some cases the direction of lateralization varies among individuals within populations. Laterality of aggression in male Siamese fighting fish has been described in a number of studies, yet very little is known about lateraliz...

Genetic diversity is vital for the maintenance of genetic pool in cultured shrimps. In order to estimate the current status of genetic diversity in Litopenaeus vannamei shrimp in Iran, as an exotic species, a total of 45 individuals from Amiri and Gorgeaj farms in Jask port of Hormozgan province and one hatchery in Gomishan city of Golestan provinc...

Widespread prescription of fluoxetine has led to enter into the aquatic environments which act as an endocrine disruptor for fish. This study examined the effect of fluoxetine on the reproductive consequence of convict cichlid (Amatitlania nigrofasciata), during three successive cycles of spawning. Following pair-bond formation, pairs were divided...

Green terror fish were fed for two months with three types of feed including: control diet (C), diet containing 2% fish oil (O) and diet containing fish oil supplemented with 0.1% P.acidilactici bacteria (PA). At the end of the feeding period, 50 fish of different groups (n=3) with an average weight of 4.28 g were transferred to 9 tank. Hypoxia tes...

Beluga sturgeon (Huso huso Linnaeus, 1758) fingerlings are released into the Caspian Sea for recruiting and enhancing commercial and recreational fishing purposes. These fingerlings are reared in fresh water, but released to the estuaries that may be caused mortalities due to acute osmotic stress. In this study, the fingerlings in whole (in vivo) o...

Serotonin is one of the monoamines that play an important role in food intake in mammalian species. The increase in serotonergic activity may reduce appetite. Fluoxetine as an active ingredient of Prozac is increased in serotonin content by blocking reuptake of it. Due to the release of these substances into the ecosystem, the role of fluoxetine...

To identify Kraft liquor effects on spermatogenesis and sperm motility of Caspian kutums by using in vitro culture, the fish testis was incubated with 5, 10 and 15% (V/V) of liquor for 3 and 6 days. The percentage of motile spermatozoa and its total duration were also measured. Adverse effects on testicular cells were more apparent with the increas...

Sea cucumber is presented as potential marine source of antimicrobial compounds. The purpose of this study is to evaluate antifungal effects of sea cucumber, Holothuria leucospilota, extracts on Aspergillus niger and Candida albicans. Methanol and chloroform extracts of the body wall, gonad and intestine of sea cucumber, H. leucospilota, collected...

The increasing presence of aquatic contami-nants, such as the pharmaceutical fluoxetine, has raised concerns over potentially disrupting effects on several aspects of fish reproduction. However, the effects of flu-oxetine on reproductive and paternal behavior in fish remain understudied, particularly at environmentally rele-vant concentrations. In...

Background: Fluoxetine (ProzacTM) is one of the most popular antidepressant that released to aquatic systems via sewage-treatment effluents. It is suspected to provoke substantial effects in the aquatic environment. Methods: In spawning tanks, specimens were exposed to concentrations of 0 and 0.54 µgl-1 fluoxetine from male introduction until the l...

This study was carried out to investigate the interaction of simultaneous use of fluoxetine (Flx), a selective serotonin reuptake inhibitor, and diclofenac (Dcf), a non-steroidal anti-inflammatory drug, on food intake in goldfish, Carassius auratus. Treatments with different dosage of Flx including control, 0, 1, and 10 µg/g body weight (BW) were i...

The aim of this study was to investigate the inheritance of adrenal hyperplasia, caused by 17α-hydroxylase deficiency, and its association with female to male sex reversal in common carp. Inbred strains used in this experiment were E4 (XX, female, normal), E5 (XX, male, adrenal hyperplasia) and E7 (XX, male, adrenal hyperplasia). F1 females (E4E5:...

In recent years efforts to find bioactive compounds from live organisms especially marine animals have been increased. In the present study, the anticancer and cytotoxic effects of sea cucumber body walls (Holothuria leucospilota) were investigated. For this purpose, sea cucumbers were collected from Larak Island at depths of 10 to 30 m and extract...

ABSTRACT: Success in aquaculture is based on various criteria and the selection of a suitable feed and its potential use is important. The possibility of using fairy shrimps as diet in aquaculture has not been explored widely. Among the live diets used in the aquaculture, fairy shrimps have the potential to be used as a feed item for fishes such as...

Success in aquaculture is based on various criteria and the selection of a suitable feed and its potential use is important. The possibility of using fairy shrimps as diet in aquaculture has not been explored widely. Among the live diets used in the aquaculture, fairy shrimps have the potential to be used as a feed item for fishes such as ornamenta...

This study was conducted to investigate the effect of serotonin (5-HT) injection as a neurotransmitter on ovarian maturation in female Macrobrachium nipponense. The neurotransmitter was dissolved in saline and injected at concentrations of 1, 4, 8 and 12 µg g -1 body weight (BW) in 1st, 4th and 8th day of experiment. Control group was injected only...

Farhadi, A., Farhamand, H., Nematollahi, M. A., Jeffs, A., and Lavery, S. D. 2013. Mitochondrial DNA population structure of the scalloped lobster Panulirus homarus (Linnaeus 1758) from the West Indian Ocean. – ICES Journal of Marine Science, 70: . The scalloped spiny lobster Panulirus homarus (Linnaeus, 1758) is a highly valuable species with a wi...

Success in aquaculture is based on various criteria and the selection of a suitable feed and its potential use is important. The possibility of using fairy shrimps as diet in aquaculture has not been explored widely. Among the live diets used in the aquaculture, fairy shrimps have the potential to be used as a feed item for fishes such as ornamenta...

To study anomaly among body components in the Mahisefid population situated in one of the spawning rivers, the abnormal fishes were sampled (n=10). Twenty six morphological properties were measured to be statistically (P<0.05) compared with normally caught fishes. The mentioned characters were standardized based on the total length. Eight ratios in...

The survival, growth, reproductive and life span characteristics of Phallocryptus spinosa were studied at different temperatures in the laboratory. Three replicates of 200 newly hatched nauplii were transferred to culture containers at 15, 20, 25 and 30˚C. The larvae were fed with unicellular algae Dunaliella tertiolecta and chemically treated yeas...

Success in aquaculture is based on various criteria and the selection of a suitable feed and its potential use is important. The possibility of using fairy shrimps as diet in aquaculture has not been explored widely. Among the live diets used in the aquaculture, fairy shrimps have the potential to be used as a feed item for fishes such as ornamenta...

Bream (Abramis brama, Berg, 1949; Family: Cyprinidae) is commercially valuable fish in the Caspian Sea fishing industry. Iranian Fisheries Organization annually produces and release up to 19 million Bream fries size for recruiting of this species. Its fries are mostly released into the Anzali wetland with 4 ppt salinity. Meanwhile, they sometimes a...

The aim of this study was to analyze the stress response during 3 hours net confinement stress and recovery period of 22 hours in normal (STD) and in 17α-hydroxylase deficient common carp (E5). Fish were raised for 6 months and sampled at T0 (control, unstressed), 5 minutes, 20 minutes, 1 hour and 3 hours of exposure to net confinement, and after 1...

In our previous study, for the first time in any fish species, the mRNA expression of L-Gulono-γ-lactone oxidase (GULO) was investigated during early development of Persian sturgeon, Acipenser persicus, and it was demonstrated that GULO mRNA was expressed throughout the development of Persian sturgeon. Accordingly, it was suggested that the initial...

ABSTRACT: Backgrounds: Pacu, Piaractus brachypomus is an orname ntal imported fish that is reared as an edible fish in some countries. There have been very f ew studies as food fish in Iran. Objectives: This study aimed to evaluate the relationships between water quality parameters and stress response indices in different densities in a relatively...

Effects of oral administration of testosterone and fluoxetine exposure on aggressive behavior of the fighting fish, Betta splendens, were investigated. Testosterone diluted in ethanol and sprayed on pre-weighted pellet to achieve concentrations of 0, 1, 2 and 4 mg/kg of hormone in food. Two main behaviors were recorded: the time in front of mirr...

The zebra cichlid Cichlasoma nigrofasciatum is a species famous for its behaviors of biparental care. This study was conducted to examine the effect of parental care and their size on the reproductive success of this fish. Hatching rate (HRs) has significant difference in four parental care treatment, 1. bi-parental, 2. female-only, 3. male-only an...

This review is presenting the biography of Artemia in Islamic Republic of Iran. There are many documents that show the history of studying Artemia in iran goes back to 1899 when Gunter reported Artemia in Urmia Lake. Iran has many natural saline lakes. One of the biggest and most important of them that unfortunately is facing the danger of drying i...

The functions of ghrelin, a novel weight-regulatory peptide, have not been intensively investigated in primitive fish. This experiment was conducted to determine whether ghrelin has a specific effect on growth hormone (GH), prolactin and cortisol levels in Persian sturgeon (Acipenser persicus). Juvenile Persian sturgeons with a mean body weight of...

Watercress (Nasturtium nasturtium) is a medical plant containing diverse chemically-active substances with biological properties. The present study was conducted to investigate the immunomodulatory effects of watercress extract on immunological and hematological parameters of rainbow trout (Oncorhynchus mykiss). Fish were fed for 21 days with diet...

Rainbow trout, Oncorhynchus mykiss, is one of the cultured fishes in the cold and fresh waters of the world. In this project, the main objective is the evaluation of samples of all male brood stock populations of rainbow trout in Iran. Phenotype of male brood stocks was identified in three categories, namely unclear, clear and clear with orange ban...

The effects of acute or sustained administration of mammalian and salmon GnRH agonists (mGnRHa and sGnRHa) were examined on the reproduction performance of wild-caught female carp from the Caspian Sea. Ripe broodfish were caught in the beginning of spawning season (early May) by seine from the southeast coastal waters of the Caspian Sea, Golestan p...

l-Gulono-gamma-lactone oxidase (GULO) is a key enzyme for the biosynthesis of ascorbate, which is essential for several cellular functions. In the present study, mRNA expression of GULO gene was evaluated during the early development of Persian sturgeon. First, because there are no comparative studies that have established suitable quantitative rea...

rocessing of hatchable Artemia cysts and their proper storage has a key role in sustainable supplying of Artemia nauplii for aquaculture applications. Processing of Artemia cysts is essential to reach the best hatching quality. In order to minimize metabolic activities of embryos and maximize cyst survival, the cysts must be dehydrated, packed in v...

In this study the expression of five genes involved in cortisol synthesis and regulation in the head kidneys of common carp (Cyprinus carpio L.) has been investigated in response to 3h net confinement stress, followed by 22h recovery. Cortisol, glucose, lactate and free fatty acid levels were measured in blood plasma. StAR, P450c17a2, 3betaHSD, P45...