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Fish By-Products Consumption And Discard Pattern In Nigeria, Brakemi Egbedi, Dr. A.O. Osibona Apr 2025

Fish By-Products Consumption And Discard Pattern In Nigeria, Brakemi Egbedi, Dr. A.O. Osibona

Journal of Agricultural and Marine Sciences

Significant portions of by-products are generated and discarded throughout the fish supply chain. To reduce the discard of these by-products and ensure their proper utilization, there is a need to ascertain its discard and consumption pattern among fish consumers. The main aim of this study was to investigate the by-products fish consumers in Lagos State, Nigeria regard as waste; discard and consume. Factors which influence the discard and consumption of these by-products were also investigated. Using a Multistage sampling procedure, a structured questionnaire was used to obtain information from 300 respondents in three Local Government Areas (LGAs) in Lagos State, …

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Cooked Sesame Meal In The Diet Of African Catfish Clarias Gariepinus (Burchell 1822): Effects On Haematology, Liver And Kidney Histology, Wasiu Adeyemi Jimoh, Oyewale Adedapo Fagbenro, Eunice Oluwayemisi Adeparusi Apr 2025

Cooked Sesame Meal In The Diet Of African Catfish Clarias Gariepinus (Burchell 1822): Effects On Haematology, Liver And Kidney Histology, Wasiu Adeyemi Jimoh, Oyewale Adedapo Fagbenro, Eunice Oluwayemisi Adeparusi

Journal of Agricultural and Marine Sciences

Haematological and histological alterations are strong pointers to the health status of farmed fish, farm animals and even humans. These provide dependable information on metabolic disorders and deficiency. The haematological and histological changes in African catfish Clarias gariepinus (Burchell 1822) fingerlings fed cooked sesame (Sesamum indicum) seed meal was examined in a 56-day feeding trial. Three batches of sesame seeds were cooked for 10, 20 or 30 min, dried, milled, and mechanically defatted using a screw press. Cooked seed meals (CSM) were substituted for defatted soybean meal in the diets of African catfish at 15, 30, and 45 per cent. …

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Evaluation Of Physical And Chemical Properties And Total Phenolic Content In Baker’S Yeast Obtained From Grape Juice, Sawsan Mahmood, Ali Ali, Ayhem Darwesh, Wissam Zam Apr 2025

Evaluation Of Physical And Chemical Properties And Total Phenolic Content In Baker’S Yeast Obtained From Grape Juice, Sawsan Mahmood, Ali Ali, Ayhem Darwesh, Wissam Zam

Journal of Agricultural and Marine Sciences

Baker`s yeast is mainly produced from molasses in various parts of the world, and other sources, including grape juice. In this study, the grape juice was chosen. This study aimed to produce a biomass from dry baker`s yeast. Its physical and chemical properties was evaluated. The biomass from baker’s yeast S. cerevisiae was equal to 41.50±0.01 g/L. The following fermentation conditions, i.e. temperature (30.1oC), pH (4.75), sugar concentration (158.36 g/L), ratio of carbon to nitrogen (11.9), and initial concentration of yeasts (2.5 g/L) were used. The fermentation was carried out for a period 12 h. Grape juice was subjected to …

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Wheat Production In Oman: Experiences, Challenges And Opportunities, Muhammad Farooq Apr 2025

Wheat Production In Oman: Experiences, Challenges And Opportunities, Muhammad Farooq

Journal of Agricultural and Marine Sciences

Bread wheat (Triticum aestivum L.) is the leading staple and strategic food crop in the Sultanate of Oman; however, the national wheat production can meet less than 1% of the domestic requirements. The balance is met through imports from Australia, Canada, Russia, and Argentina. However, reliance on imported wheat alone may put Oman at risk in the event of wheat export bans. Therefore, wheat production needs to be enhanced to ensure national food security. Nonetheless, water deficits, salinity, prolonged droughts, unavailability of stress resilient genotypes, and heatwaves challenge this notion. In this review manuscript, the current status, constraints, and opportunities …

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Risks In The Sri Lankan Banana Supply Chain: Analysis Through An Interpretive Structural Modeling, Shanaka Rajakaruna, Alawathuge Wijeratne Apr 2025

Risks In The Sri Lankan Banana Supply Chain: Analysis Through An Interpretive Structural Modeling, Shanaka Rajakaruna, Alawathuge Wijeratne

Journal of Agricultural and Marine Sciences

Although banana is an important fruit in Sri Lanka that gives a good income to farmers. Researchers have indicated that the majority of the crop is damaged from the farm gate to the consumer table. Accordingly, this research was addressed ‘to find the risks of the banana supply chain in Sri Lanka. The Interpretive Structural Modeling (ISM) approach was used in this research to find the risks in the banana supply chain of Sri Lanka. According to the literature survey and data analysis, several risks such as human and personal, production, financial, land prices, biological and environmental, information, political, weather-related, …

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Rehydration Ability Of Native Dried Date (Phoenix Dactylifera L.) Fruits Soaked In Orange Juice, Habiba Messaid, Lamia Ait-Ameur, Salem Benamara Apr 2025

Rehydration Ability Of Native Dried Date (Phoenix Dactylifera L.) Fruits Soaked In Orange Juice, Habiba Messaid, Lamia Ait-Ameur, Salem Benamara

Journal of Agricultural and Marine Sciences

Algerian date (Phoenix dactylifera L., dried variety Mech-Degla) fruits (DFs) are of low commercial value. To our knowledge, research on the rehydration of DFs by soaking in citrus or other fruit juices is limited. The present paper reports on the soaking process of naturally dried DFs in orange juice (OJ). The DF rehydration ability was analyzed by applying two levels factorial design with three responses (DF weight gain, OJ °Brix and DF breaking strength) and three factors (soaking temperature “X1”, soaking time “X2” and OJ volumetric fraction “X3”). The optimal experimental conditions (X1 = 5 °C, X2 = 24 h …

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A Review On Solar Drying Of Fish, Abdulrahim Al-Ismaili Apr 2025

A Review On Solar Drying Of Fish, Abdulrahim Al-Ismaili

Journal of Agricultural and Marine Sciences

Oman is one of the larger fish producers in the region. Due to high perishable rate of fish products, many preservation techniques were used such as smoking, drying, chilling, brining and freezing. Solar drying is the most popular technique due to its simplicity and low cost compared to other techniques. Objective. This study aims to review the different types of solar drying techniques and highlight the quality measures of solar dried fish. Review findings. Solar drying techniques can be divided into three types; open-sun drying, direct and indirect solar drying. The open-sun drying is the most adoptable method because it …

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Anti-Diabetic Potential Properties Of Two Edible Omani Wild Plants (Pteropyrum Scoparium And Oxalis Corniculata), Iman R. S. Al-Qalhati, Mostafa Ibrahim Waly, Lyutha Al-Subhi, Zahir Al-Attabi Apr 2025

Anti-Diabetic Potential Properties Of Two Edible Omani Wild Plants (Pteropyrum Scoparium And Oxalis Corniculata), Iman R. S. Al-Qalhati, Mostafa Ibrahim Waly, Lyutha Al-Subhi, Zahir Al-Attabi

Journal of Agricultural and Marine Sciences

Background:The use of plant for medicinal purposes has a long history worldwide. There is a lack of research that identifies the antidiabetic effect of edible Omani wild plants. Oxidative stress mediates the pathogenesis of diabetes and it has been suggested that natural antioxidants might be considered as an effective intervention for combating diabetes. Objective: This study aimed to assess the anti-diabetic and antioxidant potential properties of two edible Omani wild plants (Pteropyrum scoparium and Oxalis corniculata) or their mixture in streptozotocin (STZ)-induced diabetic rats. Methods: Thirty-seven male Sprague Dawley rats, weighting 250-300 grams, were allocated into 5 groups: non-diabetic (9 …

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Effect Of Storage Conditions On Postharvest Quality Of Tomatoes: A Case Study At Market-Level, Pankaj B. Pathare, Mai Al Dairi, Adil Al-Mahdouri Apr 2025

Effect Of Storage Conditions On Postharvest Quality Of Tomatoes: A Case Study At Market-Level, Pankaj B. Pathare, Mai Al Dairi, Adil Al-Mahdouri

Journal of Agricultural and Marine Sciences

Postharvest loss is one of the main obstacles facing food security in Oman as it leads to reduce fresh produce quality and market value. The aim of this study is to determine the postharvest losses due to quality reduction of fresh produce like tomato during storage at market level in Oman. This paper consists of two stages. First, a semi-structure survey was conducted to collect the data from the market vendors. Second, fresh tomatoes were also purchased from the market and stored in the laboratory at 10oC and 22oC for 12 days. All data were analyzed using SPSS statistical software. …

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Subclinical Mastitis In Camels In Oman: A Pilot Study, Muhammad Nadeem Asi, Waleed Al-Marzooqi, Yasmin Eltahir, Al Ghalya, Al Toobi, Sara Al Raisi, Haytham Ali Apr 2025

Subclinical Mastitis In Camels In Oman: A Pilot Study, Muhammad Nadeem Asi, Waleed Al-Marzooqi, Yasmin Eltahir, Al Ghalya, Al Toobi, Sara Al Raisi, Haytham Ali

Journal of Agricultural and Marine Sciences

Camels are important and multipurpose animals in many parts of the world including Middle East. Camel milk may harbor different bacteria. Centuries old tradition of consumption of raw camel milk is still a common practice in Oman. This study was carried out to conduct a microbiological analysis of camel milk samples with subclinical mastitis in the region of Muscat, Sultanate of Oman. A total of 61 camel (Camelus dromedarius) milk samples were collected from various animal holdings in and around Muscat. Onsite California Mastitis Test (CMT) revealed 18 (29%) camels positive for subclinical mastitis. Positive milk samples were subjected to …

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Microbiological Assessment Of Locally Dried Fish In Oman: Technical Note, Aaisha K. Al-Saadia, Abdulrahim M. Al-Ismaili, Mohammed Al-Ruzeikib, Ismail M. Al-Bulushib Apr 2025

Microbiological Assessment Of Locally Dried Fish In Oman: Technical Note, Aaisha K. Al-Saadia, Abdulrahim M. Al-Ismaili, Mohammed Al-Ruzeikib, Ismail M. Al-Bulushib

Journal of Agricultural and Marine Sciences

During fish drying process, elements and processes that affect the quality of dried fish might take place. The traditional sun-drying approach incurs major losses of the dried fish in terms of quantity and quality. Dried fish also suffer from insects and sand contamination as well as high concentration of ash especially when fish is dried on sand. The presence of microorganisms is another major factor affecting the quality of dried fish. In this project, a number of analytical tests were used to verify the presence of biochemical contamination in dried fish, as well as to propose an engineering solution to …

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Protective Effect Of Oxalis Corniculate And Pteropyrum Scoparium Leaves Extracts Against Azoxymethane-Induced Oxidative Stress And Colon Carcinogenesis, Mostafa Ibrahim Waly Apr 2025

Protective Effect Of Oxalis Corniculate And Pteropyrum Scoparium Leaves Extracts Against Azoxymethane-Induced Oxidative Stress And Colon Carcinogenesis, Mostafa Ibrahim Waly

Journal of Agricultural and Marine Sciences

Oxalis corniculate and Pteropyrum scoparium are two edible wild Omani plants with known preventive effects on various human diseases, yet their therapeutic role in colon cancer was not studied. Azoxymethane (AOM) is a common oxidizing agent that induces colon cancer in experimental animal models. In the current study, we examined the protective effect of Oxalis corniculate and Pteropyrum scoparium leaves extracts against AOM-induced cancer and oxidative stress in rat colon. Sixty Sprague-Dawley rats were randomly divided into 6 groups (10 rats/group). The Control group was fed a standard diet; the AOM-treated group was fed a standard diet and received an …

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Correlation Between Sensory And Instrumental Textural Attributes Of Date Palm (Phoenix Dactylifera L.) Fruits: Technical Note, Vandita Singh, Mohammad Shafiur Rahman, Nejib Guizani, Hakikulla Shah Apr 2025

Correlation Between Sensory And Instrumental Textural Attributes Of Date Palm (Phoenix Dactylifera L.) Fruits: Technical Note, Vandita Singh, Mohammad Shafiur Rahman, Nejib Guizani, Hakikulla Shah

Journal of Agricultural and Marine Sciences

Food industries are looking for the suitable instrumental methods that estimate consistently sensory textural qualities of food products. Monitoring texture using instrumental methods is cheaper over time than maintaining a sensory quality panel. Therefore, a good relation between sensory and instrumental textural attributes could be highly beneficial. Earlier the sensory and instrumental texture profile analysis (TPA) of date fruits were published. In the present research, we aimed to report the relation between instrumental and sensory textural attributes of date fruit varieties. Instrumental TPA and sensory textural attributes were correlated. We found significant correlations between sensory and instrumental TPA attributes of …

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Role Of Grapevine Rootstocks In Mitigating Environmental Stresses: A Review, M. Mumtaz Khan, Muhammad Tahir Akram, Rashad Waseem Khan Qadri, Rashid Al-Yahyai Apr 2025

Role Of Grapevine Rootstocks In Mitigating Environmental Stresses: A Review, M. Mumtaz Khan, Muhammad Tahir Akram, Rashad Waseem Khan Qadri, Rashid Al-Yahyai

Journal of Agricultural and Marine Sciences

Viticulture is one of the most important crop industry in the world and its cultivation is on the upward trend globally. Global water and soil resources continue to decline sharply and rampant extreme weather conditions are making serious threat to sustainable agriculture and food security. Further, the changes in climatic conditions are increasingly becoming favorable for rearing certain harmful biotic organisms which are hostile to sustained grapes and other crop cultivation. The environmental changes have shown a projected impact on viticulture through increased biotic and abiotic stresses. Range of strategies can be employed to mitigate such scenarios, however integration of …

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In Vitro Antagonistic Potential, Plant Growth-Promoting Activity And Indole-3-Acetic Acid Producing Trait Of Bacterial Isolates From Spent Mushroom Substrate Of Agaricus Bisporus, Rethinasamy Velazhahan, Shima Nasser Hamed Al-Mamari, Abdullah Mohammed Al-Sadi, Issa Hashil Al-Mahmooli, S. P. Sathish Babu Apr 2025

In Vitro Antagonistic Potential, Plant Growth-Promoting Activity And Indole-3-Acetic Acid Producing Trait Of Bacterial Isolates From Spent Mushroom Substrate Of Agaricus Bisporus, Rethinasamy Velazhahan, Shima Nasser Hamed Al-Mamari, Abdullah Mohammed Al-Sadi, Issa Hashil Al-Mahmooli, S. P. Sathish Babu

Journal of Agricultural and Marine Sciences

Spent mushroom substrate (SMS) is widely used as fertilizer and to control plant diseases. The microorganisms surviving in SMS play a crucial role in plant growth promotion and biocontrol properties of SMS. In this study, an effort was made to isolate and characterize the bacterial species present in the SMS of Agaricus bisporus and to study their antagonistic potential, plant growth-promoting ability and indole-3-acetic acid (IAA) producing trait. Six different bacterial isolates exhibiting morphological variabilities were obtained from the SMS by serial dilution technique. On the basis of 16S rRNA gene sequences, these isolates were identified as Staphylococcus epidermidis (Sh1 …

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Effect Of Storage Time On The Quality Of Smoked Heteroclarias, Ayodeji Ahmed Ayeloja, W. A. Jimoh, T. O. Uthman, M. O. Shittu Apr 2025

Effect Of Storage Time On The Quality Of Smoked Heteroclarias, Ayodeji Ahmed Ayeloja, W. A. Jimoh, T. O. Uthman, M. O. Shittu

Journal of Agricultural and Marine Sciences

Effect of storage time on the quality of smoked heteroclarias was studied. 108 samples of heteroclarias (average weight 210 + 15g) was used. Analysis carried out include: proximate, mineral composition (Ca, Na, Fe and Mg), biochemical, amino acid and sensory evaluation. Data obtained was subjected to Analysis of Variance (ANOVA) while the sensory data was subjected to nonparametric test (Kruskal Wallis test). Smoked heteroclarias have good nutritional quality in terms of proximate, mineral and amino acids all of which decrease with increase in duration of storage at ambient temperatures. Glutamic acid was the most predominant amino acid and the highest …

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Sideroxylon Mascatense: A New Crop For High Elevation Arid Climates?, Eric Hopkins, Rashid Al Yahyai Apr 2025

Sideroxylon Mascatense: A New Crop For High Elevation Arid Climates?, Eric Hopkins, Rashid Al Yahyai

Journal of Agricultural and Marine Sciences

This paper reviews the existing research on Sideroxylon mascatense, and provides an argument for being considered a fruit crop in cultivated production systems in the Sultanate of Oman and elsewhere. Climate change due to global warming has adverse effects on the agro-ecosystems of mountain regions in marginal climate zones. For example, in the Western Hajar Mountains of Oman, yields of the temperate fruit crops have decreased in recent years as temperature and other climate anomalies have increased. Other fruit-bearing wild plants have also been impacted by extreme weather fluctuations, particularly those that occupy a narrow altitudinal range. One such plant …

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Editorial, Shafiur Rahman Apr 2025

Editorial, Shafiur Rahman

Journal of Agricultural and Marine Sciences

Editorial

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Feed Intake In Atlantic Salmon Fed With Or Without Surface Spreading Of Feed, Turid Synnøve Aas, Trine Ytrestøyl, Torbjørn Åsgård, Kristoffer Rist Skøien, Morten Omholt Alver, Jo Arve Alfredsen Apr 2025

Feed Intake In Atlantic Salmon Fed With Or Without Surface Spreading Of Feed, Turid Synnøve Aas, Trine Ytrestøyl, Torbjørn Åsgård, Kristoffer Rist Skøien, Morten Omholt Alver, Jo Arve Alfredsen

Journal of Agricultural and Marine Sciences

In intensive salmon farming, it is common practice to spread the feed over a large surface area, assuming that spreading of the feed increases feed intake in the fish. However, the impact on the feed pellets during spreading results in feed loss due to pellet breakage. In this study, feed intake, growth and signs of aggressive behavior was compared in salmon fed without or with spreading of the feed on the surface area of the tanks. Atlantic salmon (Salmo salar) with initial body weight 0.6 kg were kept in 3.3 m 3 tanks supplied with sea water (salinity 32 %, …

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Use Of Soil-Structured Capillary Barrier Can Mitigate The Impact Of Saline-Irrigation Water On Marigold Grown Under Field Condition, Mohammed Said Al-Mazroui, Rashid Al-Yahyai, Said Al-Ismaily, Anvar Kacimov, Hamed Al-Busaidi Apr 2025

Use Of Soil-Structured Capillary Barrier Can Mitigate The Impact Of Saline-Irrigation Water On Marigold Grown Under Field Condition, Mohammed Said Al-Mazroui, Rashid Al-Yahyai, Said Al-Ismaily, Anvar Kacimov, Hamed Al-Busaidi

Journal of Agricultural and Marine Sciences

Capillary barriers (CBs) as engineered porous composites is novel and promising technology for mitigating salinity and drought stress of plants. This study aimed to imitate a naturally formed CB structure recently discovered in the reservoir bed of Al-Khoud dam at the Governorate of Muscat in northern Oman and to test the impact of this unique CB on mitigating the salinity stress of marigold plants grown under an open field condition. A plot was constructed and divided into “structured” (engineered cascade CB design) and “unstructured” soils and planted with marigold (Tagetes erecta) plants that were subjected to four salinity treatments (control …

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Consumers’ Preference And Behaviour Pattern Towards Fresh And Smoked Catfish In Ilorin Metropolis, Nigeria, Wasiu Adeyemi Jimoh Apr 2025

Consumers’ Preference And Behaviour Pattern Towards Fresh And Smoked Catfish In Ilorin Metropolis, Nigeria, Wasiu Adeyemi Jimoh

Journal of Agricultural and Marine Sciences

Consumers’ preference study allows industries to tailor the supply towards the preference of consumers so that market could be optimized for their turn-over and profits. This study investigated consumers’ preference of fresh and smoked catfish in Ilorin Metropolis. A total of 225 questionnaires were administered adopting multi-stage techniques to elicit information from the respondents. The obtained data were subjected to descriptive and inferential statistics. The results showed that majority of the respondents in this study preferred smoked catfish irrespective of their socio-economic profile. The majority of the respondents agreed with the factors used in this study for the preference of …

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Book Review, Nejib Guizani Apr 2025

Book Review, Nejib Guizani

Journal of Agricultural and Marine Sciences

Book Review

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Fish Consumption And Knowledge Of Chemical Pollutants Among A Sample Of New Mothers In Tripoli, Libya, Thuraya A. Abuhlega, Huria M. Maamar Apr 2025

Fish Consumption And Knowledge Of Chemical Pollutants Among A Sample Of New Mothers In Tripoli, Libya, Thuraya A. Abuhlega, Huria M. Maamar

Journal of Agricultural and Marine Sciences

Fish and fish products are important sources of nutritional elements, especially iodine and unsaturated fatty acids (omega-3). These are essential for pregnant women and their embryos during a pregnancy period. However, women and their embryos may be exposed to chemical pollutants when they consume fish. Therefore, this study aimed to assess the consumption pattern of fish during pre-pregnancy, pregnancy and post-pregnancy periods, and explore the awareness on the chemical pollutants in fish among the women who recently gave birth in Tripoli city, Libya. This study targeted 370 women randomly in Tripoli city and collected data through a face to face …

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Evaluation Of Greenhouse Cucumber Production Sustainability In Terms Of Energy Use Efficiency, Nawal Khamis Al-Mezeini, Abdulrahim M. Al-Ismaili, Said M. Tabook Apr 2025

Evaluation Of Greenhouse Cucumber Production Sustainability In Terms Of Energy Use Efficiency, Nawal Khamis Al-Mezeini, Abdulrahim M. Al-Ismaili, Said M. Tabook

Journal of Agricultural and Marine Sciences

Sustainable agricultural production could be assessed through energy-use efficiency (EUE). Thus, this paper aims to evaluate the EUE for cucumber greenhouse production in Oman. Data were obtained by interviewing farmers (face-to-face). Result indicated that total energy inputs (e.g. electricity, water, fertilizers and agrochemicals) and total energy output (cucumber yield) were 1159726.0 MJ ha-1 and 89942.9 MJ ha-1, respectively. The highest energy consuming input in the greenhouse production was electricity, consuming 88% of total energy input. This indicates that electricity had again the highest impact in cucumber greenhouse production and 99% of electricity goes for cooling the greenhouse. When all energy …

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Effect Of Processing Methods On Consumer's Acceptability And Proximate Composition Of Yellow Croaker (Larimichthys Polyactis), Ayodeji Ahmed Ayeloja, F. O.A. George, W. A. Jimoh, S. A. Abdulsalami Apr 2025

Effect Of Processing Methods On Consumer's Acceptability And Proximate Composition Of Yellow Croaker (Larimichthys Polyactis), Ayodeji Ahmed Ayeloja, F. O.A. George, W. A. Jimoh, S. A. Abdulsalami

Journal of Agricultural and Marine Sciences

Effect of processing methods on consumer’s acceptability and proximate composition of yellow croaker was investigated. The experiment was completely randomized design where the treatments were the various processing methods employed. 12kg frozen yellow croaker fish were purchased, cut into chunks, divided into 4 groups of 3kg each, each group was salted and then subjected to different processing methods including: sun drying, deep- frying, solar drying and smoking. After processing, the products were subjected to organoleptic assessment using hedonic scale while the proximate composition was determined using standard experimental procedures. The result of this study indicates that the odour and flavour …

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Improving Solanine Production In In Vitro Cultures Of Solanum Nigrum L. Using Different Chemical And Physical Factors, Mu,Ad A. Al-Kiyyam, Rida A. Shibli, Reham W. Tahtamouni, Tamara S. Alqudah, Bashaer B. Abu-Iramaileh Apr 2025

Improving Solanine Production In In Vitro Cultures Of Solanum Nigrum L. Using Different Chemical And Physical Factors, Mu,Ad A. Al-Kiyyam, Rida A. Shibli, Reham W. Tahtamouni, Tamara S. Alqudah, Bashaer B. Abu-Iramaileh

Journal of Agricultural and Marine Sciences

Solanum nigrum L. is a medicinal plant of solanaceae family with distinguished therapeutic properties. Traditionally, S. nigrum. had been used as an anti-tumorgenic, antioxidant, hepatoprotective, diuretic, and antipyretic agent. The most important alkaloid member in this plant is solanine. Therefore, this study was conducted to utilize tissue culture techniques for the enhancement of solanine production in the in vitro grown cultures of this promising neglected plant. For callus growth and development experimental part, the highest callus growth parameters (callus diameter (21.4 mm) and callus fresh weight (2202.4 mg) were obtained in callus grown on Murashige & Skoog MS media supplemented …

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Effect Of Grafting On Resistance To Vine Decline Disease, Yield And Fruit Quality In Muskmelon Cv. Sawadi, Qais Al-Mawaali, Abdullah M. Al-Sadi, Fahad A. Al-Said, Mohammed Shafiur Rahman, Intisar Al-Zakwani, Amanat Ali, M. Al-Yahyai Apr 2025

Effect Of Grafting On Resistance To Vine Decline Disease, Yield And Fruit Quality In Muskmelon Cv. Sawadi, Qais Al-Mawaali, Abdullah M. Al-Sadi, Fahad A. Al-Said, Mohammed Shafiur Rahman, Intisar Al-Zakwani, Amanat Ali, M. Al-Yahyai

Journal of Agricultural and Marine Sciences

A study was conducted to evaluate graft success, resistance to vine decline disease and effect of grafting on quality and yield of muskmelon. Two field experiments, conducted in Oman, showed that muskmelon cv. Sawadi grafted on six cucurbit rootstocks gave high grafting success: 97.6-99.1% (avg. 98.6%) and 92.4-96.9% (avg. 95.3%) under field conditions in fall 2012 and spring 2013 respectively. No significant differences were observed between seasons among the six treatments and a non-grafted control in consumer preference for odor and firmness, fruit shape, flesh vitamin C, micronutrient content and TSS (sucrose %) or pH in spring 2013 (P > 0.05). …

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Overview Of Decadal Ecosystem Changes In The Western Arabian Sea And The Occurrence Of Algal Blooms, Paul Harrison, Sergey Piontkovski, Khalid Al-Hashmi Apr 2025

Overview Of Decadal Ecosystem Changes In The Western Arabian Sea And The Occurrence Of Algal Blooms, Paul Harrison, Sergey Piontkovski, Khalid Al-Hashmi

Journal of Agricultural and Marine Sciences

Gradual decadal changes have taken place in the Western Arabian Sea over the last 50 years. These changes have affected wind speeds, atmospheric and sea surface temperature, thermohaline stratification, shoaling of the oxycline, and dust/iron inputs. A decrease in nitrate supply of the photic layer have caused an increase in annual frequency of harmful algal blooms and fish kills. Along with that, a decrease in diatom biomass and a shift from red Noctiluca to green Noctiluca during the northeast monsoon was observed during the last two decades, Even though these are the same species they have very different nutritional modes. …

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2nd Gcc Marine Biotechnology Conference: Emerging Opportunities And Future Perspectives, Sergey Dobretsov Apr 2025

2nd Gcc Marine Biotechnology Conference: Emerging Opportunities And Future Perspectives, Sergey Dobretsov

Journal of Agricultural and Marine Sciences

2nd GCC Marine biotechnology conference was held at Sultan Qaboos University, 31 October - 1 November 2017. The conference was organized by the Center of Excellence in Marine Biotechnology, SQU. The conference focused on four major themes, including Genetics and biodiversity, Marine biofouling and its prevention, Marine natural products, and Aquaculture and fisheries. In total, 160 delegates from 23 different countries were registered for this conference and 106 delegates attended the conference. One plenary lecture and three keynote addresses were given, 39 oral and 30 poster presentations were made. The final session reviewed national and regional issues and identified some …

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Integrated Aquaculture In Arid Environments, Stephen Goddard, Fatma Saif Al-Abri Apr 2025

Integrated Aquaculture In Arid Environments, Stephen Goddard, Fatma Saif Al-Abri

Journal of Agricultural and Marine Sciences

Around one third of the globe is classified as desert or arid (<200mm rain annually) and most such regions lack food security. Traditional freshwater aquaculture is often a marginal activity and competes with agriculture for limited water resources. Developing technologies offer new opportunities to increase productivity of aquaculture through integration with vegetable production in aquaponic systems and to reduce water requirements through the application of biofloc technology. Aquaponic systems combine aquaculture and hydroponic plant production and are integrated within a re-cycled water system. Fish waste metabolites provide the nutrients for plants grown in soil-less, hydroponic systems. Biofloc farming systems operate with minimum or zero water exchange. Suspended biofloc particles develop in fish tanks under conditions of full aeration and controlled carbon to nitrogen ratios. They comprise algae, bacteria, protozoa and particulate organic matter held in a loose matrix. They provide in-situ treatment of harmful fish metabolites, are protein rich, contain essential fatty acids, vitamins and minerals and supplement the diets of filter-feeding farmed species. The integration of fish culture with vegetable production provides new opportunities for small and medium enterprises. Integrated farms occupy a small footprint, optimise the use of resources and can be built close to population centres. This paper reviews current developments in aquaponics and biofloc technology against the background of food security needs in arid regions.

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