Queenfish Research Articles

Evaluation of salt content and effectiveness of excessive salt reduction methods in selected commercially available dried fish types in Sri Lanka

High salt intake elevates the risk of non-communicable diseases such as high blood pressure, cardiovascular diseases and stroke worldwide. Sri Lanka has recorded in 2010 as the country with highest average fish & fish products consumption in South Asia. In the current study, salt in ten types of commonly available dried fish namely; sprats, prawns, smoothbelly sardinella, queen fish, cat fish, sail fish, shark, skipjack tuna, Bombay duck and trenched sardinella was analyzed and determined salt reduction methods with minimal protein loss. Four salt reduction methods were tested; Method 1: washed with water at Room Temperature (RT) for five times; Method 2: washed with water for five times at RT and kept in hot water for 5min; Method 3: washed with water for five times at RT and boiled for 5min; Method 4: washed with water for five times at RT and kept in coconut water for 5min. Using Volhard method, sodium chloride was analyzed while protein was determined using Kjeldahl method. All four methods showed significant reduction of salt level in tested dried fish (p < 0.05). Among the tested salt reduction methods, Method 3 showed the highest salt reduction for all types of dried fish except smoothbelly sardinella and cat fish.The highest salt mean value of 28.8% was recorded in queen fish and the lowest mean value of 12.8% was recorded in smoothbelly sardinella. The highest protein loss was recorded in Method 3. To reduce considerable amount of salt, the easiest and fairly effective method is method 1 except for prawns and Shark. Although higher salt reduction showed in method 2 and 3, they are not recommended due to high protein loss, high energy expenditure and reduction of freshness of dried fish. Method 4 can be applied for all dried fish types because it is economical and reduces considerable amount of salt, removes less amount of protein comparatively. The results revealed that all tested dried fish except smoothbelly sardinella contain significantly high amount of salt (p < 0.05) than the standard value specified (12%) by the Sri Lanka Standards Institution (SLSI).Keywords: Dried fish, protein loss, salt-intake, salt reduction, non-communicable diseases

CATCH ANALYSIS AT THE TIME OF FISHING OPERATIONS AND IMMERSING SURFACE GILL NETS IN SEMARANG WATERS, CENTRAL JAVA, INDONESIA

The purpose of this study was to catch analysis at the time of fishing operations and immersing surface gill nets in Semarang Waters, Central Java, Indonesia. The research was carried out in March 2021. The research method was experimental fishing. The treatment variables included the morning operating time with 30 minutes and 60 minutes of immersion time, and the evening operating time with 30 minutes and 60 minutes of soaking. All treatments were repeated 7 times each. Data analysis using the Two Way Anova test. The composition of the catch obtained was Milkfish (Chanos Chanos), Long Jawed Mackerel (Rastrelliger sp.), Anchovy Fish (Mystacoleucus padangesis), Threadfin (Eleutheronema tetradactylum), Queen Fish (Scomberoides lysan), Grouper Fish (Epinephelus sp.), Pony Fish (Leiognatus tauvina), Emperors (Lethrinus sp.), Silver Pennah Croaker (Aspericovina jubata), Black Pomfret (Formio niger), Torpedo Scad (Megalaspis cordyla), Spanish Mackerel Fish (Scomberomorus sp.), John’s Snapper (Lutjanidae sp.), Streaked Spinefoot (Sinagus sp.), Tholi Shad (Tenualosa macrura), and Tongue fish (Cynoglossus lingua). The most catches (biomass) were treated in the morning operating time with 60 minutes of immersion. Data analysis showed that there was a significant effect on the best catch with fishing operation time in the morning (sign 0.05) and immersing time for 60 minutes (sign 0.05). There is no significance between the fishing operation time and the immersing time. The most catches (biomass) were treated in the morning operating time with 60 minutes of immersion. Data analysis showed that there was a significant effect on the best catch with fishing operation time in the morning (sign 0.05) and immersing time for 60 minutes (sign 0.05). There is no significance between the fishing operation time and the immersing time.

Художественно-интенциальные признаки исповеди и проповеди в рассказе В.П. Астафьева «Капля» из книги «Царь-рыба»

Статья посвящена исследованию особенностей авторской интенции в рассказе В.П. Астафьева «Капля» из книги «Царь-рыба». Содержание произведения рассматривалось исследователями в аспекте социально-нравственных проблем современности, важнейшей из которых в 1970-е годы становится экологическая. В традиционное реалистическое повествование Астафьев включает лирико-философский компонент, имеющий черты религиозных жанров – проповеди, исповеди. При всей неоднозначности научных суждений о религиозном поиске писателя очевидна возможность выявления в рассказе «Капля» жанрово-художественных признаков, свидетельствующих о вполне определенных психологических, религиозно-философских установках автора, что составляет актуальность и новизну предлагаемого исследования. Мотив благодарности и радостного приятия жизни является одним из доминирующих в христианском мироощущении, а в данном тексте является доказательством философско-религиозной авторской идеи. Элементы исповедально-проповеднического нарратива проявляются как «память жанра», как направленность творческого сознания Астафьева на постижение законов существования жизни.

Quality evaluation of surimi and fish nuggets from Queen fish (Scomberoides commersonnianus).

The purpose of this study was formulation and evaluation of physicochemical properties of fish and surimi nuggets prepared from Queen fish (Scomberiodes commersonnianus) during 90 days of storage. Chemical analysis showed that surimi nuggets contained less protein, fat, and ash due to washing steps during surimi preparation. The titratable acidity, peroxide, and TBA values for fish nuggets were significantly higher than surimi nuggets during frozen storage (p < .05). Moreover, the textural properties of the products exhibited more firmness of surimi nuggets before cooking compared with fish nuggets (p < .05) and more firmness of fish nuggets after cooking compared with surimi one (p < .05). Furthermore, surimi nuggets were lighter and had lower total bacterial counts rather than fish nuggets during frozen storage (p < .05). SDS‐PAGE of the samples during storage exhibited more intensity of the bands related to α‐actinin, actin, and β‐tropomyosin in surimi nuggets compared with that for fish nuggets. Moreover, the sensory evaluation showed that acceptability of surimi nuggets was more than that for fish nuggets after frozen storage. These results showed that surimi nuggets had higher quality indicators rather than fish nuggets.

한국산 전갱이과 어류 1 미기록종, Scomberoides lysan

한국산 전갱이과 어류 1 미기록종, Scomberoides lysan

First Reliable Record of the Needle-scaled Queenfish, Scomberoides tol (Perciformes: Carangidae), from Korea

First Reliable Record of the Needle-scaled Queenfish, Scomberoides tol (Perciformes: Carangidae), from Korea

Microbiological Quality Assessment of Frozen Fish and Fish Processing Materials from Bangladesh.

The present study aims at the microbiological analysis of export oriented frozen fishes, namely, Jew fish, Tongue Sole fish, Cuttle fish, Ribbon fish, Queen fish, and fish processing water and ice from a view of public health safety and international trade. Microbiological analysis includes the determination of total viable aerobic count by standard plate count method and enumeration of total coliforms and fecal coliforms by most probable number method. The presence of specific fish pathogens such as Salmonella spp. and Vibrio cholerae were also investigated. The TVAC of all the samples was estimated below 5 × 105 cfu/g whereas the total coliforms and fecal coliforms count were found below 100 MPN/g and 10 MPN/g, respectively, which meet the acceptable limit specified by International Commission of Microbiological Specification for Food. The microbiological analysis of water and ice also complies with the specifications having TVAC < 20 cfu/mL, and total coliforms and fecal coliforms count were below the limit detection of the MPN method. Specific fish pathogens such as Salmonella sp. and V. cholerae were found absent in all the samples under the investigation. From this study, it can be concluded that the investigated frozen fishes were eligible for export purpose and also safe for human consumption.

Reproductive Characteristics of Doublespotted Queenfish, &lt;I&gt;Scomberoides Lysan&lt;/I&gt; (Actinopterygii: Perciformes: Carangidae), from Sri Lankan Waters: Implications for Fisheries Management

Spawning season and area, age at maturity, age at first reproduction, and fecundity are important parameters in reproductive biological studies (Jakobsen et al. 2009, Salcedo-Bojorquez and Arreguin-Sanchez 2011) and can be determined through the examination and classification of gonads into developmental stages (Mackie and Lewis 2001). Karolu-Riga and Economidis (1997) also state that observing the seasonal developmental changes in the gonads is the most suitable method for determining the reproductive cycle of fish. Reproductive seasonality was determined by monthly inspection of macroscopic and microscopic developmental stages and by gonadosomatic index (GSI) (Maartens and Booth 2005). An understanding of the reproductive biology of a species is a central aspect of providing sound scientific advice for fisheries management (Morgan 2008). Sivashanthini (2008) also stated that the knowledge on length at maturity and spawning season helps to determine when and at which length the fish should be protected; it is therefore important for the proper management and conservation of fish stocks. The reproductive strategy of a species is a characteristic feature that is usually firmly associated within that species (Morgan 2008). Queen fish are a group of tropical pelagic fishes that are widely distributed throughout the Indo-West Pacific, often in schools (Honebrink 2000) inhabiting inshoreand offshore reefs and estuaries (Durville et al. 2003, Griffiths et al. 2005, Froese and Pauly 2012). Scomberoides lysan (Forsskal, 1775), commonly known as doublespotted queenfish, leather jackets, or leather backs, inhabit pelagic neritic waters over sandstone with coral, mud, and sand in the coastal seas off Sri Lanka (De Bruin et al. 1994). These are economically important food fishes that are especially ACTA ICHTHYOLOGICA ET PISCATORIA (2013) 43 (1): 7–13 DOI: 10.3750/AIP2013.43.1.02

Comparative Study on Organoleptic, Microbiological and Biochemical Qualities of Commercially and Experimentally Prepared Salted and Sun Dried Talang Queen Fish, Scomberoides commersonianus

Comparative Study on Organoleptic, Microbiological and Biochemical Qualities of Commercially and Experimentally Prepared Salted and Sun Dried Talang Queen Fish, Scomberoides commersonianus

Consumer-Based Development and Optimization of Fish Strudel Using D-optimal Mixture Design

In this study, seven filling materials based on 60–80% fish mince from seven local fish species were formulated for developing fish strudels based on consumer liking. A 9-point hedonic scale ranging from 1 (extremely dislike) to 9 (extremely like) was used for screening the acceptance of the prototypes. A three-component D-optimal Mixture Design was also applied to optimize the formulation of fish strudel filling materials. Pretrials were done to identify the high-impact ingredients, which had a high effect on the sensory quality when their levels (%) were changed. The results indicated that fish strudel containing 70% Talang Queen fish (Scomberoides commersonnianus) mince in the filling materials liked significantly higher than the other prototypes. The results revealed that the quality of fish strudel packed in a polyethylene sealed bag was stable during the storage period. No significant differences were found among fish strudel and control prototypes. Practical Applications This study deals with the development and optimization of a strudel filled with fish mince. Fish presents rich sources of components of the diet for many people and often provides the much needed nutrient that is not provided in cereal-based diets. Therefore, the results provide important information for companies that can plan to develop a food, which also increases fish availability to the consumers and mix with cereal and other substances.

Influence of Ice Storage on the Gel Forming Ability, Myofibrillar Protein Solubility and Ca2+-ATPase Activity of Queen Fish (Chorinemus lysan)

Influence of Ice Storage on the Gel Forming Ability, Myofibrillar Protein Solubility and Ca2+-ATPase Activity of Queen Fish (Chorinemus lysan)

Effect of Salt Concentration and Cryoprotectants on Gel-forming Ability of Surimi Prepared from Queen Fish (Chorinemus lysan) During Frozen Storage

Effect of Salt Concentration and Cryoprotectants on Gel-forming Ability of Surimi Prepared from Queen Fish (Chorinemus lysan) During Frozen Storage

Fin rot and other diseases in marine fishes

A survey was conducted on the incidence of diseases, by superficial appearance, in common fish species of Portonovo coast. Approximately 46,484 marine and 22,150 estuarine fishes were examined. Marine fishes alone were observed with fin rot and neoplasm while estuarine fishes were free from such abnormalities. Fin rot was recorded among seventeen species of marine fish and tumour in cat fish. Fin necrosis accompanied with haemorrhage, ulceration and loss of scales was consistent external sign of the disease. Species of cat fish, grunter, queen fish and pikes were mostly affected by fin rot at high level and the maximum peak was recorded in April. Cat fishes alone had tumour. More than 80% of the tumour bearing specimen had fin necrosis.