bluuebunny/crossref_metadata_2025 huggingface dataset:
The manic and hypomanic phases in bipolar disorder and female sexuality in early adulthood
Authors: Kozakiewicz Alicja
Published: May 2022

Background: Despite the fact that a change in sexual behaviour is considered an integral part of bipolar disorder, hardly any literature on sexual problems in women with this disease is available. Aim: The study aimed to determine whether there is an association between manic/hypomanic phases and sexual dysfunction and alcohol use, and to test for differences between the control and study groups. Materials and methods: The study involved 590 women from Poland, aged 19–40 years. The control group consisted of 538 and the bipolar disorder group of 52 subjects. The study used the Female Sexual Function Index and two original questionnaires: the Questionnaire of Sexual Risk Behaviour (Cronbach’s alpha 0.7) and the Questionnaire of Manic/Hypomanic Phases (Cronbach’s alpha 0.89). Data were analysed by Spearman’s rho correlation coefficient and Mann–Whitney U test of differences. Results: The study showed a relationship between the manic/hypomanic phase and a decrease in dysfunction in the area of orgasm, and a relationship between the frequency of alcohol consumption and engaging in homosexual behaviours. Women with bipolar disorder were more likely to engage in risky behaviours than women in the control group, and showed higher ratings of dysfunction of the desire and arousal areas as well as higher overall ratings of sexual dysfunction. Conclusions: There is a need for ongoing research in this topic area to develop the field of sexual symptomatology in bipolar disorder in relation to current sexual, cultural, and gender norms.
Incongruities between perceived control and desire for control: accounting for depressive symptomology in adolescence
Authors:   Department of Psychology, University of Cambridge, Cambridge, UK, Myles Liam , Merlo Emanuele ,   Department of Adult and Childhood Human Pathology, University of Messina, Messina, Italy
Published: May 2022

Adolescence reflects a particularly challenging time for many individuals and is often accompanied by a rise in psychological difficulties. Symptoms of depression represent a particularly common problem experienced by adolescents, with over 21% of the population experiencing such symptoms at some point in their lives. These statistics underline the critical importance of understanding the cognitive mechanisms underpinning the upsurge of depressive symptoms during adolescence. Previous literature has emphasised the importance of both perceived control and desire for control in the manifestation of depressive symptomology. Indeed, contemporary research indicates that both greater perceived control and elevated desire for control are associated with a reduced risk of depression. This paper extends contemporary theories of depression and outlines a novel model to account for the rise in psychological difficulties during adolescence. Re-examination of the literature indicates that the upsurge of psychological difficulties during adolescence stems from a discrepancy between one’s desire for control and one’s perception of control. More specifically, it is argued that elevated desire for control in the absence of correspondingly high perceived control, at least partially, contributes to poor psychological welfare in adolescence. The clinical implications are subsequently discussed, with reference to the importance of considering the extent to which adolescents desire control over their lives when undertaking therapeutic interventions.
Specific eating disorders – selected aspects of pathogenesis and risk factors
Authors:   Doctoral School of the Medical University of Silesia in Katowice, Department of Human Nutrition, Faculty of Health Sciences in Bytom, Bytom, Poland, Górski Michał , Całyniuk Beata ,   Department of Human Nutrition, Faculty of Health Sciences in Bytom, Medical University of Silesia in Katowice, Bytom, Poland, Garbicz Jagoda ,   Doctoral School of the Medical University of Silesia in Katowice, Department of Toxicology and Health Protection in the Occupational Environment, Faculty of Health Sciences in Bytom, Bytom, Poland, Buczkowska Marta ,   Department of Toxicology and Health Protection in the Occupational Environment, Faculty of Health Sciences in Bytom, Medical University of Silesia in Katowice, Bytom, Poland, Siudmak Karolina ,   Complex of Special Schools no. 6, Katowice, Poland, Górska Karolina ,   Pedagogical University of Krakow, Kraków, Poland, Polaniak Renata ,   Department of Human Nutrition, Faculty of Health Sciences in Bytom, Medical University of Silesia in Katowice, Bytom, Poland
Published: May 2022

Although research into the aetiology and pathogenesis of eating disorders has been ongoing for many years, it has not yet been possible to identify all the factors responsible for their development. Current research does not focus on a single risk factor, but looks for correlations between them. This article presents selected aspects of the pathogenesis and risk factors of specific eating disorders. Family and individual factors, social and cultural factors, and biological factors are described. Particular attention has been paid to the aspect of parenting styles and behaviours exhibited, e.g. excessive punishment and emotional coldness. The coexistence of personality disorders with specific and non-specific eating disorders is also described. The social aspect highlights the development of social media and their impact on selfesteem, body dissatisfaction, and promotion of pathological thinness. Cultural factors include progressive “westernisation” and the rapid increase in the prevalence of eating disorders in the areas of the world where they did not previously exist. Among biological factors, publications on appetite neuromodulators, genetic factors, gut microbiota disorders, and the so-called brain-gut axis were analysed. Modern science is not as yet able to answer the question of which of the mentioned factors has the greatest impact on the development of eating disorders, however, ongoing research offers hope for effective treatment of these diseases in the future. Knowing the factors predisposing to their occurrence will allow early identification of risk groups and undertaking preventive and therapeutic actions, including psychotherapy and pharmacotherapy.
#multilingualself: Hashtagging as a Resource for Performing a Multilingual Identity
Authors: Vandergriff Ilona
Published: May 2022

Vandergriff’s discourse-analytic study of a Reddit discussion shows how L2 errors are construed as obstacles to full participation. In reproducing language ideologies and affirming the hegemony of the native speaker, Reddit community norms are shown to promote linguistic gatekeeping but the data also provide compelling evidence of inclusion of L2 users.
Multilingualism in a Box? Identity in non-CMC CALL
Authors: Buendgens-Kosten Judith
Published: May 2022

Design is never neutral. Language learning products reflect assumptions about their users and about which characteristics of these users are relevant for the user experience. At the same time, they encode assumptions about (legitimate and/or desirable) language, language competence and language use. In this chapter, I employ Dörnyei’s L2 Motivational Self System as a lens to look at three non-CMC language learning products with a multilingual theme or a multilingual component: Romanica, Duolingo, and MElang-E. I discuss design decisions made in the creation of these products, and how these interact with and potentially impact (multilingual) learner identity, especially Ideal L2 Selfs and Ought-to L2 Selves.
Cultural Identity and Intercultural Learning: Individual Learners’ Experiences in Telecollaboration
Authors: Izmaylova Anastasia
Published: May 2022

This chapter explores the reciprocal relationship between language learners’ cultural identities and their telecollaboration experience. On the one hand, learners’ identities and positioning affected the degree of their intercultural competence development in the exchange. On the other hand, telecollaboration offered learners a space to explore and reimagine their cultural identities.
Re-establishing Multilingual Identities through Telecollaborative Experience
Authors: Yang Se Jeong
Published: May 2022

This volume focuses on a range of topics and studies that address the notion of plurilingualism and multilingual identity in computer-mediated language learning (CALL) spaces. Interest in digital multilingual identity in the fields of applied linguistics and language education has been growing exponentially in recent years. New theoretical assumptions and recent global challenges have urged researchers to problematize the traditional notion of virtual identity in the face of increased virtual connectedness and the hybridization of transcultural and translingual practices. The chapters in this collection contribute to this fast-growing body of interdisciplinary research, featuring conceptual papers and research studies of identity performance and multilingual communication in highly complexified digitally mediated social platforms. The volume seeks to (a) contextualize digital multilingual communication as it pertains to language learning and teaching via a historical and conceptual overview of the multilingual movement in technologically mediated SLA; (b) offer in-depth explorations of multilingual practices and digital affordances that affect language learner identities beyond the classroom context, (c) fill the research void by exploring empirically the critical aspects of multilingual identity deployment in digital contexts where language learners actively participate in translingual and plurilingual practices, and (d) illustrate new ways of evaluating and adapting teaching practices to accommodate multilingual subjects, and reflect the increasingly hyperlingual nature of digital communication.
On the Literary History of Selling Out: Craft, Identity, and Commercial Recognition
Authors: Afflerbach Ian
Published: May 2022

This essay identifies “selling out” as an enduring yet evolving concern in anglophone literary history, from the late nineteenth century's divided literary field to the “program era” to the increasingly global circuits of contemporary literary commerce. It begins with Henry James, showing how his canonical statements on modern narrative form emerged from commercial negotiations—an economic prehistory of “craft.” Selling out becomes a salient concern as intellectuals come to see commercial success as antithetical to modern art. This cultural anxiety changes, however, once creative writing programs begin systematically reconciling craft and commerce. Turning to Nam Le's celebrated short story collection The Boat, the second section shows how selling out came to entail a fear that minority writers might betray group solidarity through reductive or essentialist portrayals of identity. Finally, the essay's third section closes by situating Le within a global market for postcolonial fiction and its attendant concerns over commodifying exoticism.
A simplified method to predict failure of sands under general cyclic simple shear loading
Authors: Zavala Guillermo J , Pando Miguel A , Park Youngjin , Aguilar Rafael
Published: May 2022

This paper describes a simplified approach based on constant-volume cyclic simple shear (CSS) tests with uniform sinusoidal loading that can predict failure of dry sands under general shear stress–time histories. The simplified method is based on the cumulative energy hypothesis that states that the dissipated energy required by a sand sample to reach failure depends only on its initial state (D r and [Formula: see text]) and is independent of the characteristics of the cyclic loading applied. The proposed method uses a sand-specific multivariable regression developed using a small number of CSS tests involving uniform sinusoidal loading without the need for advanced general cyclic loading tests. Furthermore, the regression requires only a small data set involving one uniform CSS test per sample initial state. The simplified method was evaluated using two comprehensive experimental studies involving two different test sands. The first data set is an experimental programme by the authors involving 20/30 Ottawa sand subjected to different cyclic loading types. The second data set is an independent experimental programme that used 0/30 Monterey sand. In both cases, the simplified approach was found to yield reasonable predictions of failure of the test sands when subjected to complex and irregular shear stress loading.
Condiciones de trabajo decente y buen vivir para el desarrollo pleno de las capacidades de los trabajadores colombianos
Authors: Vargas Prieto Amanda , Cruz Suárez Duvier Felipe , León Acuña Laura Marcela
Published: May 2022

El artículo plantea la posibilidad de implementar el concepto de buen vivir en las condiciones de trabajo decente para el desarrollo pleno de las capacidades de los trabajadores en Colombia. A través de una metodología fenomenológica se encontraron tres resultados principales. Se demuestra que no es posible implementar el buen vivir puesto que no existen condiciones de trabajo decente para el desarrollo pleno de las capacidades de los trabajadores colombianos. La descripción de las condiciones laborales actuales del trabajador evidencia que no es posible implementar el buen vivir para el desarrollo de las capacidades debido a que se dedica mayor tiempo a la producción de ingresos y se obvian otros principios que componen el buen vivir como la afiliación y la armonía con otros. No obstante, se evidencia la necesidad de configurar transformaciones profundas en las condiciones laborales de la sociedad colombiana que incluyan la ejecución real de los planteamientos del trabajo decente y digno en el marco del buen vivir para el desarrollo pleno de las capacidades.
Fishing devices of the river Siang in Arunachal Pradesh, India
Authors: Das Biplab Kumar , Singh Ngasepam Romen , Boruah Prasanna , Kar Devashish
Published: May 2022

Fish is one of the best sources of animal protein of the food. Fishing and hunting are the oldest profession of all mankind since man began his search of food. Traditional fishing catching devices which were operated in River Siang, Arunachal Pradesh have been studied with respect to its operation, structure and productivity. The small depicted work highlight 13 different types fish catching devices, which have been classified into 5 different types viz., (i) Encircling Gear (Khewali Jal, Angtha Jal and Ber Jal or Jeng Jal) (ii) Entangling Gear (Langi or Current Jal and Phansi Jal) (iii) Scooping Gear (Sip Jal and Thela Jal) (iv) Hooks and Line fishing (Nal Barshi and Doogabanshi) (v) Traps (Chepa, Dingora, Polo, and Kholaha). The present study was carried out from June 2012 to July 2013 in a 58km stretch of River Siang in East Siang district of Arunachal Pradesh. Some methods can be considered as traditional as well as non-traditional since they are well known in some other states of North-East as well as also in the country with some different kind of variation. Various fishing techniques depend on various behavioral pattern and microhabitat type of fishes.
Study on freshness quality and post-harvest loss of Hilsa (Tenualosa Ilisha) during marketing in Mymensingh town, Bangladesh
Authors: Ray Dilip Chandra , Zafar Md. Abu , Alam AKM Nowsad , Patwary Zubaida Parveen
Published: May 2022

An investigation was conducted to know the freshness quality and associated post-harvest loss of hilsa, if any, transported to Mymensingh from the major landing centers through Cox’s Bazar-Chittagong (route A) and Barguna-Chandpur (route B) routes for a period of July to October 2012. The average environmental temperature of the wholesale and retail markets was 30.7 °C and 30.6 °C where the body temperature of hilsa was 4.5 °C (route A) and 4.7 °C (route B), respectively. The Freshness quality of hilsa was assessed using sensory defects points (DPs) that eventually gave rise to numerical values ‘1’ being the freshest and ‘5’ being the worst quality. The DPs of hilsa were found 2.0, which reveal that the fishes were in excellent conditions, i.e., there was no significant post-harvest loss even during retail sale. DPs on arrival and at wholesale in July, September and October were significantly different after auction and during retail sale (p<0.05), and in August differed significantly only during retail sale (p<0.05). It was observed that hilsa transported to Mymensingh from Barguna-Chandpur were better in quality than those transported from Cox’s Bazar-Chittagong. The reason behind this finding was not studied and this needs to be elucidated through further research.
Histo-morphology of the alimentary canal in two freshwater snakehead fish Channa punctata and Channa striata
Authors: Borman Mita , Ara Ismot , Kamrujjaman Mohammad , Nabi Md. Rafiqun
Published: May 2022

The histo-morphological study of the alimentary canal of two carnivore freshwater snakehead fish Channa punctata and C. striata was carried out from October 2013 to July 2014. It revealed that three major parts like oesophagus, stomach and intestine composed of short thick-walled body. The oesophagus begins with buccopharynx. Structure and arrangement of both villiform and canine teeth on jaws in C. striata are more extendable and stronger than C. punctata and thereby made the former one more successful predator. The availability and arrangement pattern of mucous pits and taste bud pores in oesophagus are also prominent in C. striata. The TS of stomach of both the species has broad GM devoid of goblet mucous cells,  but surface layer CC and basal layer GG open through gastric pits. The length of intestine (16.0 cm) and intestinal pyloric caeca (5.5 cm) in C. striata are larger than C. punctata (7.0 cm and 1.5 cm, respectively). However, the TS of intestinal Sr. 0.05 mm; MM. 0.8 mm; Mu 0.5 mm suggest in favour of carnivore habit of both the species.
A study on sutijal (purse net) in the Chalan Beel
Authors: Sultana Nahid , Islam M Nazrul
Published: May 2022

The present study on fishing technique using sutijal (purse net) in the Chalan Beel was conducted for a period of 3 years from July 2011 to June 2014. Net description, operation details and catch composition were studied through field survey in different parts of studied wetland. Three different categories of sutijal were recorded. Catch composition revealed that all types of aquatic organisms are being caught by this net. Benefit-cost ratio of studied fishing net was also calculated. Frequent fishing by this net, especially in streams of remote areas of the Chalan Beel resulting in decline of fish species and abundance. Appropriate management steps are recommended to get rid of this destructive fishing gear.
Feed intake, nutrient digestibility and nutrient retention in Atlantic salmon (Salmo salar L.) fed diets with different physical pellet quality
Authors: Aas Turid Synnøve , Sixten Hanne Jorun , Hillestad Marie , Ytrestøyl Trine , Sveier Harald , Åsgård Torbjørn
Published: May 2022

Three feeds with different physical pellet quality but the same formulation were fed to Atlantic salmon for 97 days. Pellet quality was measured as bulk density, durability, fat leakage, hardness, water stability and porosity. The largest difference among the feeds was measured in hardness (201, 236 and 86 Newton for Diet 1, Diet 2 and Diet 3 respectively). The relative feed intake was highest in salmon fed Diet 2 and Diet 3 with no effects of pellet hardness. Growth and feed efficiency ratio were similar among all fish. The apparent digestibility of energy, dry matter, nitrogen and lipid was similar for all feeds, whereas the apparent digestibility of phosphorus and zinc was the lowest in Diet 3. Retention of energy, lipid and nitrogen was also similar for all feeds. Salmon fed Diet 1 and Diet 3 retained more phosphorus than those fed Diet 2. An increased retention of the digested zinc was found in salmon fed Diet 3. This study concludes that physical pellet quality affects feed intake and improve utilisation of feed in salmon if optimised properly. Moreover, pellet hardness can be optimised in commercial scale without compromising feed intake as it has no influence on feed intake.
The stock status of the pelagic fishes in Banyuasin coastal waters, Indonesia
Authors: Fauziyah . , Putri Wike Ayu Eka , Purwiyanto Anna Ida Sunaryo , Agustriani Fitri , Ermatita . , Putra Apriansyah
Published: May 2022

Information on the condition of pelagic fish stocks in Banyuasin coastal waters is currently very limited. This study aimed to estimate the stock status of Auxis spp., Scomberomorus commerson, Selaroides leptolepis and Rastrelliger spp. based on the time series catch and effort data from 2008  to 2016 in the Banyuasin coastal waters, South Sumatra Province, Indonesia. All seven surplus production models, model performance, and fish stocks status were estimated. In order to determine the best-fitted model, several indicators of model performance were required. The Pella and Tomlinson model was the best-fitted model for S. commerson while the best-fitted model for Rastrelliger spp., Auxis spp. and S. leptolepis was the Fox model. The optimum effort (EMSY) value for S. commerson, Rastrelliger spp., Auxis spp. and S. leptolepis were 68677, 18226, 23402 and 22403 trips respectively. The maximum sustainable catch (CMSY) value for S. commerson, Rastrelliger spp., Auxis spp. and S. leptolepis were 1845, 515, 286, 667 tons respectively. In 2016 the stock of S. commerson was in recovery condition whereas it was subjected to overfishing for Auxis spp. and depleted for S. leptolepis and Rastrelliger spp.
Delineation of seven species of genus Channa from upper Assam region, India using sagittal otolith morphology
Authors: Sonowal Jyotirmoy , Singh Moirangthem Kameshwor , Biswas Shyama Prasad
Published: May 2022

Morphology of sagittal otoliths of seven species of genus Channa from upper Assam, India was studied to obtain baseline information for their prospective role in taxonomic studies. In the present study, variations were recorded in morphological characteristics of sagittal otolith among the studied species. Of all the studied parameters, otolith shape, sulcus acusticus, ostium, and cauda, in particular, were found to be taxonomically important features for the identification of the species. The pentagonal shape of sagitta in Channa punctata, pseudo-ostiocaudal sulcus acusticus in C. marulius, bent concave ostium in C. stewartii, straight cauda in C. bleheri were found to be species-specific features. Sagitta size was smallest in C. gachua while the largest was recorded in C. striata. The proposed taxonomic keys enumerated through the combination of different otolith characters from the present investigation will be useful in the identification of these species when standard methodologies fail to deliver satisfactory results.
Age, length-weight relationships and condition factors of endemic Antalya barb Capoeta antalyensis (Battalgil, 1943)
Authors: Çetinkaya Soner , Uysal Rahmi , Yegen Vedat , Ceylan Mustafa , Akçimen Ufuk , Bilgin Fuat
Published: May 2022

The aim of this study was to determine the length-weight, length-length relationships (LWR and LLR) and condition factors of Antalya barb Capoeta antalyensis, an endemic species to Turkey. The specimens (N = 125) were caught using the gill nets in the Sorgun Dam (Aksu, Isparta). The age of the study specimens varied between one and six years. The total length and body weight of the specimens varied from 17.7 – 36.7 cm and 57.03 – 526.91 g respectively. A negative allometric growth (b = 2.7743) was recorded for the species whereas the LWR and total length (TL) – fork length (FL) equations were W = 0.0203 × TL2.7743 (R2 = 0.95) and TL = 0.402 + FL × 1.061 (R2 = 0.99) respectively. The condition factor was determined for every specimen. In light of the results obtained in the study this species may be considered for aquaculture ensuring sustainable population in the wild. This study provides new information that can play an important role in the sustainable management this species.
Effects of dietary glutamate and succinate on growth performance and mitochondrial respiration in heart and liver of Atlantic salmon (Salmo salar) smolts
Authors: Naveenan Manoharan , Olsen Rolf Erik , Egelandsdal Bjørg
Published: May 2022

The smolt stage of salmon has challenges in reaching adequate growth rates due to the changing environmental conditions at sea. Therefore, it is necessary to provide adequate diets to achieve sufficient growth. This study determined the impacts of glutamate and succinate (1% each) supplemented diet on the growth of Atlantic salmon smolts along with characterization of mitochondrial respiration using high-resolution respirometry technique. Results indicated that there was no significant difference in growth response between the treatment and control groups. Maximum oxidative phosphorylation (OXPHOS) was reached after addition of succinate. Analysis of heart homogenates revealed a significant difference in LEAK respiration state (P = 0.005). No significant difference was recorded between the diet groups for liver homogenates. Differences between heart and liver respiration revealed that mitochondrial activity is organ dependent.
Investigation on the effects of Inula viscosa L. on rainbow trout gonad cells induced by lipopolysaccharide
Authors: Küçükgül Azime , Küçükgül Altuğ , Metin Korkmaz Tülay
Published: May 2022

Fish cells have been accepted as an alternative to in vivo assay for inflammatory effects of therapeutic experimental systems. To reveal the anti-inflammatory effects of Inula viscosa (IV) fish cell line RTG-2, derived from the gonadal tissue of rainbow trout, was infected with lipopolysaccharide (LPS). Effective concentrations for different concentrations of LPS (1, 5, 10, 20 µM) and IN (1, 5, 10, 20 µg ml–1) were determined. While the 20 µM concentration of LPS, which was effectively selected from preliminary tests, caused 27% cell loss,  the effective 1 µg ml–1 concentration of IN caused 1.1% proliferation in the cells when compared to the control group. All pro-inflammatory parameters investigated in LPS-induced RTG-2 cells showed up-regulation, with the highest increase in TNF-α gene expression level (11.3 fold changes). Down-regulation was determined in the IN together with LPS administered group and IL-1β had the highest effect with 96%. IL-6 protein level decreased by LPS at a rate of 4% and IN together with LPS increased by 9%. The IN exhibited significant efficacy against inflammation caused by LPS. However, further studies are needed to determine pharmacological activity of I. viscosa in details.
Meristic and morphometric characteristics of the Black Sea salmon, Salmo labrax Pallas, 1814 culture line: an endemic species for Eastern Black Sea
Authors: Kasapoglu Nazli , Çankırılıgil Ekrem Cem , Çakmak Eyüp , Özel Osman Tolga
Published: May 2022

The Black Sea salmon Salmo labrax Pallas, 1814 is an essential species for the Turkish aquaculture sector, given increasing trends of the annual productions. To date, there are few studies on meristic and morphometric characteristics of this species. In this study, the fifth filial generation of the species was specified and studied for meristic and morphometric characteristics. The results obtained in this study were compared with available literature and a similarity was found between the study specimens and wild individuals. The morphological characteristics of any cultured species is valuable especially when a new culture generation is formed and therefore this study outcomes may provide important information to the literature.
Does fish price depend solely on weight? A market survey analysis from four districts of West Bengal, India
Authors: Das Debjit , Mukhopadhyay Soumalya , Sarbajna Adity , Chakraborty Suman Bhusan
Published: May 2022

Fish is an important food item that contains perfect combination of essential nutrients. The main consumable fishes in West Bengal, India are various carps and other small indigenous fishes. The objective of the study was to find out whether fish weight was a crucial factor to decide pricing and what kind of fish was beneficial for consumer from economic perspective. Thirteen markets in four districts (Kolkata, North and South 24 Parganas, Howrah) of West Bengal were surveyed to collect information about price, weight and number of vendors selling a particular fish considering 22 fish species. Subsequent statistical analyses were performed to conclude about the relationship between fish weight and price. The study indicates that pricing of every fish species does not depend solely on their weight. Weight plays important role to determine the price of few fish species such as Liza persia, Lates calcarifer, Wallago attu, Ompok pabo and Mystus tengara. But, the price of small indigenous fishes like Chanda nama, Colisa fasciata, Harpadon nehereus, Monopterus cuchia, Rhingomugil corsula, Sperata aor and Puntius puntio does not depend on the weight of individual fish. Seasonal availability, taste, consumer’s personal preference have important role to determine fish price.
Length–weight relationship and condition factor of ten cyprinid fish species from the Caspian Sea, Urmia Lake and Persian Gulf basins of Iran
Authors: Mouludi-Saleh Atta , Eagderi Soheil , Abbasi Keivan , Salavatian Seyed Mohammad
Published: May 2022

In this study, the length-weight relationships (LWRs) and condition factor (K) were estimated for 1334 specimens belonging to ten species including Acanthobrama marmid, A. microlepis, A. urmianus, Romanogobio persus, Leuciscus aspius, Luciobarbus capito, L. mursa, L. caspius, Alburnus atropatenae and Petroleuciscus ulanus from the Caspian Sea, Urmia Lake and Persian Gulf basins of Iran. The total length and weight of the individuals varied from 3.4 to 84.5 cm and 0.4 to 6600 g respectively. The values of the slope parameter (b) and condition factor ranged from 2.99 – 3.38 and 0.79 – 1.25 respectively. LWRs with high correlation coefficients were calculated for all species (R2 > 0.95). Based on the results, the allometric growth pattern of the studied species were positive except for L. aspius, L. capito, L. mursa and P. ulanus. This study provides useful data regarding the LWRs and condition factor of ten fish species in Iranian inland waters that can be used in fisheries management, stock assessment and future studies.
Growth dependent changes in protein efficiency and amino acid composition in cultured meagre Argyrosomus regius
Authors: Baki Birol , Öztürk Dilara Kaya , Kerim Murat
Published: May 2022

The goal of this research was to determine the growth dependent changes in protein efficiency and amino acid composition of the cultured meagre Argyrosomus regius (Asso, 1801). The research was carried in net cages in a private company (Gokce Off-shore Sist.) in the Aegean Sea. Meagre of an initial weight of 8.22 ± 0.13 g reached to 373.96 ± 15.65 g in 420 days of production period. Average protein efficiency rate, protein store rate and protein consumption values of cultured meagre were 1.05 ± 0.11%, 11.49 ± 2.98% and 56.67 ± 14.52 g respectively. The total amino acid values varied between 14.97 ± 0.14 and 18.87 ± 0.10 g 100g–1, the statistical difference among the study periods was significant (p < 0.05). Most of the total essential (EAA), non-essential (NEAA), and branched‐chain amino acid values of cultured meagre were decreasing with increasing fish size but EAA/NEAA ratios were increasing. The findings of this study showed that the composition of amino acids and the consistency of meagre culture were adequate and appropriate for human consumption and nutrition.
Effect of carp species combination on production and economics of stinging catfish, Heteropneustes fossilis based polyculture in homestead ponds under drought prone area of Bangladesh
Authors: Nabi S. M. Nurun , Hossain Md. Akhtar , Alam M. Manjurul , Harun-Ur-Rashid Md. , Hossain Md. Anwar
Published: May 2022

Aquaculture of homestead ponds under drought prone areas is climatically challenged by increased temperature and decreased water level. These ponds are potentials for farming of a short cycle aquaculture species like Heteropneustes fossilis with carps but lack of appropriate species combination is the major constraint for promotion of this technique. To address this problem, an experiment was carried out during July to December, 2019 to evaluate the production and economics of H. fossilis based polyculture under different carp species combinations in homestead ponds in Tanore of Rajshahi district, Bangladesh. Three different combination of carps were tested under three treatments as T1:  Labeo rohita dominant carps (L. rohita 50%, Gibelion catla 25% and Hypophthalmichthys molitrix 25%); T2: G. catla dominant carps (L. rohita 25%, G. catla 50% and H. molitrix 25%); and T3: H. molitrix dominant carps (L. rohita 25%, G. catla 25% and H. molitrix 50%), each with three replications. Stocking densities were 123500 ha–1 for of H. fossilis was and 988 ha–1 for carps. Water quality was monitored monthly and found within acceptable range. T3 was found significantly (p < 0.05) better than other groups in terms of yield and cost benefit ratio.
Two new records of bivalve (Mollusca) from Sonadia Island, Bangladesh
Authors: Brishti Parsha Shanjana , Sultana Kazi Sonia , Islam Md. Jayedul , Sarkar Shilpi , Billah Md. Baki , Habib Kazi Ahsan
Published: May 2022

The Sonadia Island, located at the south-east coast of Bangladesh, comprises a wide variety of wetland habitats including mudflats, sand dunes and mangroves which made this island a favoured habitat for diversified molluscan fauna. This paper deals with the new distributional record of two species of marine Bivalvia in Bangladesh- Tellinides timorensis Lamarck, 1818 and Vepricardium coronatum (Schröter, 1786) belonging to the family Tellinidae and Cardiidae respectively. Analysis of taxonomy, diagnosis of shell, geographic distribution and habitat, illustrations of each species and identification characteristics were presented in this paper.
A brief review of the geographic ranges and ecological effects of three major invasive cyprinid species in Iran
Authors: Radkhah Ali Reza , Eagderi Soheil
Published: May 2022

The present study aimed to investigate the distribution status and ecological effects of the introduction of three major invasive fish species viz. Hemiculter leucisculus, Carassius auratus and Pseudorasbora parva in Iran. This review provides useful information about non-native species for readers. This research can play an important role to protecting aquatic ecosystems in Iran and other parts of the world.
Length-length, length-weight relationship and condition factor of an ecological invader, Cyprinus carpio (Linneaus, 1758) from Manasbal Lake of Kashmir Himalaya, India
Authors: Andrabi Saima , Parveen Muni , Bakhtiyar Yahya
Published: May 2022

The common carp Cyprinus carpio is a well-known invasive species. A total of 472 specimens of C. carpio (8.6–35 cm, 10.5–1000 g) were collected from Manasbal Lake of Kashmir Himalaya for this study between March 2018 and February 2020. A strong correlation between the respective parameters of length-length and length-weight with r and R2 values approaching to 1 in both. The regression analysis indicated negative allometric growth for both sexes. For female, b value ranged from 2.04 (in spring) to 2.80 (in summer) whereas for male, it varied from 1.99 (in spring) to 2.99 (in summer). The value of Fulton’s (K) and relative (Kn) condition factors were greater than 1 in every season for both sexes which indicated that C. carpio population in the Manasbal Lake is in a good health condition and the water quality parameters along with other respective factors are favourable for successful thriving of this fish in the lake. The present study will be helpful to develop future strategies in terms of sustainable management of invasive C. carpio in the Manasbal Lake and similar water bodies.
New record of white-spotted pufferfish Arothron hispidus (Linnaeus, 1758) (Tetraodontiformes: Tetraodontidae) from West Bengal, India, compared with other Arothron species occurring in India
Authors: Mishra Subhrendu Sekhar , Chakraborty Priyankar , Yardi Kranti
Published: May 2022

Two specimens of Arothron hispidus (Linnaeus, 1758) (111.7 – 112.8 mm in standard length), was collected in May 2019 from the Frasergunj fishing harbour in West Bengal, eastern India. Herein, we report this species for the first time from West Bengal. We have described the diagnostic features of the collected specimens and compared them with other Arothron species found in Indian waters.
Population structure and some growth properties of chub Squalius cephalus (Linnaeus, 1758) in Devres Stream of Kızılırmak River, Turkey
Authors: Benzer Semra , Gül Ali
Published: May 2022

This study describes the population structure, growth and condition factor of chub (Squalius cephalus) in Devres Stream of Kızılırmak River caught between June 2010 and June 2011. S. cephalus individuals ranging between I and VI years old were caught from Devres Stream. Studied individuals were between I and VI years old and their sex was determined as 51.67% male and 48.33% female. The fork length and body weight ranged from 8.79 – 19.64 cm and 9.73 – 126.60 g respectively. The von Bertalanffy growth equations were found: Lt = 27.163 [1 – e–0.159 (t+1.47)] for females and Lt = 27.078[1 – e–0.160 (t+1.46)] for males; Wt = 286.14 [1 – e–0.159 (t+1.47)]3.1049 for females and Wt = 284.43 [1 – e–0.160 (t+1.46)]2.9692 for males. The condition factor was calculated as 1.432 and 1.378 for females and males respectively.
Length-weight relationships and growth pattern of Macrobrachium malcolmsonii (H. Milne-Edwards, 1844) from the river Old Brahmaputra, Bangladesh
Authors: Paul Dipankar , Khatun Mst. Tasnima , Parvez Md. Taskin , Haque Shahroz Mahean , Ahmed Zoarder Faruque
Published: May 2022

Study of biological parameters of a species is important for its sustainable management. The length-weight relationships and growth patterns of Macrobrachium malcolmsonii (H. Milne-Edwards, 1844), collected from the river Old Brahmaputra in Bangladesh, were determined in this study based on 359 specimens (carapace length, CL: 11–90 mm; body weight, BW: 0.2–54.4 g) including 308 male and 351 female individuals. For both sexes, intercepts, slopes, and coefficients of determinations of regression analyses between CL and BW varied monthly. The lowest values of intercept (–11.51 and –11.65 for male and female respectively) was recorded in October whereas the highest values were recorded in January for male (–7.01) and March for female (–8.26 for female). The minimum coefficient of determination was 0.784 (for male) and 0.801 (for female) whereas the maximum coefficient of determination was recorded 0.971 (for male) and 0.970 (for female). For male, the b value at 95% Cl revealed that the growth in March, June, July, September and February were isometric and in April, May, October, November and January were allometric. Whereas for female, the growth in March, April, June, July, November, January and February were isometric and was allometric in May, September and October.
Impact of community-based natural resource management on household consumption: a case study of Tonle Sap Lake, Cambodia
Authors: Vong Rylida
Published: May 2022

Community-based natural resource management (CBNRM) is implemented in Tonle Sap Lake (TSL), Cambodia after abolishment of commercial fishing lots in 2001 and 2012. One objective of CBNRM implementation is to reduce poverty of the local communities in TSL. This study aimed to examine the impact of CBNRM on household consumption of fishermen in TSL through Propensity Score Matching method by comparing 248 non-CBNRM households and 223 CBNRM households This study reveals that CBNRM had a negative impact on adult equivalent consumption in the community including the fishermen who fished only inside the community boundary and those who fished both inside and outside the community boundary. However, this study also shows a positive impact of CBNRM on adult equivalent consumption of the households who fished only inside the community boundary. The local community needs more rights to exclude the migrant fishermen and rights to enforce the laws. This study also highlights that alternate income sources should also be created that could be created by expanding the market of the existing ecotourism-job, i.e. hyacinth-made handicraft making.
Estimates of length-based population parameters of the skipjack tuna, Katsuwonus pelamis (Linnaeus, 1758) in the Andaman waters
Authors: Pradeep H.D. , Shirke Swapnil Shivdas , Kar Annada Bhusan
Published: May 2022

The exploitation of Katsuwonus pelamis in Andaman waters is meagre compared to its total landings in India.  As the population parameters of this species has not been attempted in these waters, an attempt has been made here to estimate the population parameters of K. pelamis based on the length frequency data collected from local fishing boats operating from Junglighat Fishing Harbour, Port Blair, Andaman Islands from January to December 2014. A total of 704 specimens ranging from 16.5 to 71.0 cm fork length were taken for analysis. The parameters L∞, K and t0 were 74.55 cm, 0.59/year and –0.21 respectively. The von Bertalanffy growth equation for K. pelamis is Lt = 74.6[1 – e–0.59(t+0.214255)]. The recruitment pattern was unimodal. The recruitment period was from July – October. The longevity of the species was calculated as 4.9 years. After 1st, 2nd, 3rd and 4th year the length attained by the species is 38.1, 54.4, 63.4 and 68.3 cm respectively. The mortality parameters were Z=2.07, M=0.93, F=1.14 and exploitation ratio was 0.55. The virtual population analysis for K. pelamis indicated that fishing mortality starts at 41–50 cm class interval and it continues henceforth and was maximum at 61–70 cm and decreased thereafter.
First record of the silver-cheeked toad fish Lagocephalus scleratus (Gmelin, 1789) (Actinopterygii: Tetraodontidae) from Chennai coastal waters, Southeast India
Authors: Silambarasan Krishnan , Sujatha Krishnamurthy , Sundaramanickam Arumugam , Rajalakshmi Elumalai , Joice Arokia Doss Anitha
Published: May 2022

The silver-cheeked toad fish, Lagocephalus scleratus, was recorded for the first time on 25 September 2014. Two specimens of this fish species were collected from the by-catch landed by a commercial deep-sea trawler at Kasimedu Fishing Harbour, Chennai coast, Southeast India. The morphometric and meristic characters of the recorded specimens are described and discussed. The specimen was compared with earlier reports.
Enhancement of growth performance and hematological changes in rainbow trout (Onchorhynchus mykiss) alevins fed with Bifidobacterium bacteria
Authors: Sahandi Javad , Jafaryan Hojatollah , Soltani Mehdi , Ebrahimi Pouneh
Published: May 2022

The study of probiotic application as an important rearing strategy was started more than 30 years ago and most of these studies were carried out to increase growth and survival of larvae. Effect of Bifidobacterium animalis PTTC-1631 and B. lactis PTTC-1736 as probiotic supplement has been studied on growth performance and hematological changes on rainbow trout, Oncorhynchus mykiss alevins with initial body weight of 0.583 ± 0.197 g. The commercial diet was supplemented with graded levels of probiotics (1×107, 2×107 and 3×107 CFU g-1 dry feed) to obtain 3 sets of experimental diets (T1, T2, and T3 respectively) and fed four times a day for 60 days. T1 alevin showed the best growth performance in terms of specific growth rate, weight gain, metabolic growth rate, feed conversion ratio and survival rate. The highest red and white blood cell concentrations were noticed in fish fed T2 and T3 diets, respectively, no significant difference was observed in hemoglobin content. T1 showed the significant elevation of serum biochemical parameters and reduction of cortisol level. The results of present study might suggest likely positive effects of probiotic supplements with concentration of 1×107 CFU g-1 dry feed on growth and hematology on rainbow trout alevins.
Food and feeding behaviour of Mozambique tilapia (Oreochromis mossambicus Peters) from Borna Reservoir of Maharashtra, India
Authors: Sakhare Vishwas Balasaheb , Jetithor Shivaji Gyanba
Published: May 2022

The food analysis of 80 specimens of Oreochromis mossambicus collected from Borna Reservoir of Maharashtra, India revealed that the food  of juveniles mainly consisted of rotifers (35%), followed by copepods (30%), Chlorophyceae (20%), Bacillariophyceae (10%)  and aquatic insects (5%). While the food items recorded in the gut of adults were Chlorophyceae (40%), followed by Bacillariophyceae (30%), rotifers (15%), copepods (10%) and aquatic insects (5%). During present study it was found that the juveniles of O. mossamobicus mainly feed on zooplankton, and adults on phytoplankton. Intense feeding was noticed during summer season and juveniles were the active feeders.
Qualitative performance and economic analysis of low cost solar fish driers in Sub-Saharan Africa
Authors: Mustapha Moshood Keke , Salako Abdulbashir Femi , Ademola Sunmola Kayode , Adefila Ifeoluwa Abimbola
Published: May 2022

Qualitative performance and economic analysis of five low cost solar driers were evaluated at the Zoology and Physics Laboratories of the University of Ilorin, Ilorin, Nigeria. The solar driers were constructed from mosquito net, plastic, aluminum and glass with black stone inserted in it. The driers were found to be better than the other driers because they are cheap, reliable, safe to use, easy to repair, well insulated, and cost effective. The solar driers are compact, efficient with drying of fish with lowest moisture content achieved within a few days and the dried products of good quality, with long shelf life, highly acceptable to consumers. The driers save man-hour, money, use renewable energy, with no operational or maintenance costs. The driers have a long life span, with net income to fisher folks very high and the payback time for the driers very low.  The adoption of the driers will contribute to the economy of rural populace in the developing countries where there is no electricity and the challenges of deforestation are becoming prominent. The improved low cost solar driers will ensure food safety and security and assist in combating climate change resulting from burning of wood and fossil fuel.
Performance of orangefin labeo, Labeo calbasu (Hamilton 1822) as a component of polyculture system
Authors: Borah Bibha Chetia , Gogoi Rimzhim , Rahman Abdur
Published: May 2022

This paper deals with the performance of Labeo calbasu (Hamilton, 1822) as a component of conventional composite carp culture system. The species was included as 50% substitution to common carp (Cyprinus carpio) in view of its omnivorous feeding habit and bottom dwelling nature. The total production was 0.55% higher in the experimental culture (with L. calbasu and Cyprinus carpio) than in the control (common carp only). The difference in the production was however not significant statistically. The comparative economics revealed 5.30% higher return from the experimental unit. Comparison of growth pattern and survival rates of other five species of carps indicated that inclusion of L. calbasu did not have any adverse impact on the other carps. Growth rate of other carps was observed to be higher in the experimental set by 0.05% on an average than the control. Calculated profit per hectare was found to be 9.2% higher in experimental plot than in the control. Although the gross production and return in the experimental unit was not significantly higher than the control, the data supported that L. calbasu is compatible to other component species in composite carp culture system and its inclusion will enhance the economic viability of the system.