International Journal of
Fisheries and Aquaculture

  • Abbreviation: Int. J. Fish. Aquac.
  • Language: English
  • ISSN: 2006-9839
  • DOI: 10.5897/IJFA
  • Start Year: 2010
  • Published Articles: 212

IJFA Articles

August 2012

Socio-economic characteristics of fish workers in Western Kenya

  This paper analyzes and discusses the socio-economic characteristics of fish workers, with a focus on those based on the Kenyan shores of Lake Victoria. In particular, the paper considers the characteristics of fish workers in general and by type of fish work, beach location and income diversification strategy. Although, many characteristics of the fish workers were identified, six characteristics stood out:...

Author(s): Edward Olale and Spencer Henson

July 2012

Effect of repeated partial cropping on population dynamics and yield of Oreochromis niloticus (L.) during polyculture with Heterobranchus longifilis (Val.)

The effect of repeated cropping of half the number of young and large adults on productivity and dynamics of Oreochromis niloticus was investigated during polyculture with Heterobranchus longifilis. Mixed-sex, large-sized and young adult tilapia of 841±0.3 g and 841±0.23 g were cultured with 40 catfish fingerlings in triplicate 36 m2 earthen ponds in 1 and 2 treatments respectively. At...

Author(s): Chukwuma O. Ofor, Udo I. Udo and Michael O. Udoidiong

  • Article Number: 3D9AB834061

July 2012

Aspects of the biology of trap caught Chrysichthys nigrodigitatus (Lacepede: 1803) from the New Calabar River, Nigeria

  Length and weight measurements of a population of 513 specimens of trap-caughtChrysichthys nigrodigitatus  harvested between January and July (excluding May), 2010 were analyzed using the following softwares; FiSAT (Fish Stock Assessment Tool) and Popdyn JFB.xls. Results of the sampled population gave a total length range of 18 to 95 cm,  Lmax (113.8 cm), L∞ (116.8 cm), Lm (60 cm), Lopt...

Author(s): A. Francis and U. Elewuo

July 2012

Microplanktic assemblages (sarcodines and alveolates) in the central and southeastern Aegean Sea (NE Mediterranean)

  Spatial changes in the structure of microplanktic assemblages (sarcodines and alveolates) in the surface waters of coastal regions in the central and southeastern Aegean Sea were estimated during late summer to early autumn. Tintinnidae (Ciliophora), as well, Acanthometridae (Radiolaria) and Globiderinidae (Foraminifera) exhibited a higher abundance in the central Aegean Sea, compared to that in the more...

Author(s): H. Miliou, K. Kapiris and I. Castritsi-Catharios

April 2012

Evaluation of experimental infection with Aeromonas hydrophila in pacu (Piaractus mesopotamicus) (Holmberg, 1887)*

  The aim of this work is to determine the concentration of Aeromonas hydrophila to be inoculated in pacu (Piaractus mesopotamicus), so as to induce bacterial infection but not death during a period of at least ten days and, therefore, enable the development of treatment protocols. The tested concentrations were established through the Mac Farland scale and fish were subjected to three A....

Author(s):   Silvia Patrícia Carraschi, Claudinei da Cruz, Joaquim Gonçalves Machado Neto, Flávio Ruas de Moraes,  Oswaldo Durival Rossi Júnior, Antonio Nader Neto and Neida Lucas Bortoluzzi

April 2012

The effects of replacement of soybean meal by shrimp shell meal on the growth of hybrid tilapia (Oreochromis niloticus x Oreochromis aureus) reared under brackish water

  To evaluate the effects of complete replacement of soybean meal (SBM) protein by shrimp shell meal (SSM) on the growth performance of hybrid tilapia (O. niloticus x O. aureus), five approximately isoenergetic and isonitrogenous (30% crude protein) diets containing 0, 33, 50, 67 and 100% SSM were fed to triplicate groups of ten fry with an initial mean weight 1.54 ± 0.03 g/fish under brackish water (15...

Author(s): Jean Fall, Yi-Theng Tseng, Diegane Ndong and Shin-Shyn Sheen

March 2012

Economic analysis of fish hatchery operations in Ogun State, Nigeria

  This paper examines the cost and returns, and the determinants of fish hatchery operations in agricultural extension zones of Ogun state. The simple random sampling method was used in selecting 120 fish hatchery operators out of 388 registered ones using multi-stage sampling techniques. The primary data were collected in 2010 production season with the aid of well-structured, validated and pre-tested...

Author(s): Olaoye Olalekan Jacob and Oke Abdulfatai Olubukola

March 2012

Bioactivity of venom extracted from the sea anemone Anthopleura asiatica (Cnidaria: Anthozoa): Toxicity and Histopathological studies

  The bioactivity of the venom from a locally available sea anemone, Anthopleura asiaticacollected from the Mumbai coast was studied. The crude venom from sixty sea anemones (Sixty numbers) was extracted in aqueous medium. The protein content of the crude venom was 4.3459±0.027 mg/ml. The crude venom was found to be lethal at 1ml when injected intra-peritoneal to kasuali strain male albino...

Author(s): Ramkumar S., Arun Sudhagar S. and Venkateshvaran K.

March 2012

Nitrite intoxication of Clarias gariepinus at different water temperatures

  Clarias gariepinus (Burchell, 1822) of mean weight 320±11.2 g and total length 60.0±1.0 cm were exposed to nitrite (0.2 mg/l NO2) for 48 h at 27 and 35°C in order to investigate the effects of nitrite poisoning at these water temperatures. The effects of nitrite exposure on fish was assessed on selected haematological and biochemical indicators of the blood. The test was performed in a...

Author(s): Ajani Funmilola and Adeyemo Olanike Kudirat

February 2012

Effect of dietary protein, lipid and carbohydrate contents on the growth, feed efficiency and carcass composition of Cyprinus carpio communis fingerlings

  This study aimed to determine a feed formulation with best protein to energy ratio which would result in better growth, feed efficiency and carcass composition of Cyprinus carpiocommunis. Fingerlings having average weight 1.64 ± 0.13 g and length 5.26 ± 0.10 cm were fed on four different formulated feeds and a control feed (each in a triplicate set), 6% of their body weight, three times a...

Author(s): Muzaffar Ahmad, Qureshi T.A., Singh A.B., Susan Manohar, Kamlesh Borana and Salman Rouf Chalko

February 2012

Diversity of the edible fishes of the Lagos Lagoon, Nigeria and the public health concerns based on their Lead (Pb) content

  In this study, a total of eighteen fish species were recorded in the Lagos Lagoon, Nigeria during a one year survey. Among the animals species recorded, the following, Galeoidesdecadactylus, Dentex gibbosus, Elops lacerta, Scomber japonicus, Ethmalosa fimbriata, Lutjanus agennes, Caranx senegallus, Callinectes amnicola, Paeneus notialis and Mytilus edulis were considered to be abundant in...

Author(s): F. E. Ajagbe, A. O. Osibona and A. A. Otitoloju

February 2012

Selectivity and fish catches of gillnets in stratum VII (Yeji sector) of Lake Volta for sustainable management

  The study was conducted in Stratum VII (Yeji sector) of Lake Volta where commercial fishermen arbitrarily use gillnets, from June, 2009 to March, 2010. The catches of monofilament gillnets, the most dominant gear used in Stratum VII were investigated for dominant fish species composition and selectivity parameters. The study revealed the dominance of two fish species (Synodontis...

Author(s): Daniel N. Akongyuure, Patrick K. Ofori-Danson and Francis K. E. Nunoo

January 2012

Growth response and ionic regulation in common carp (Cyprinus carpio L.) after chronic dietary copper exposure and recovery

  Effects of exposure of common carp juveniles (Cyprinus carpio L.) to dietary copper and its recovery rate were investigated with the aim of determining the growth and physiological impact. The fish were fed elevated copper diets (1000 and 2000 mgCukg-1 as diet 2 and diet 3 respectively) and control diet (5 mgCukg-,  as diet 1) for 42days and were then fed the control diet for a further...

Author(s): Ajani, E. K and Akpoilih, B. U

January 2012

Effect of dietary protein, lipid and carbohydrate contents on the liver composition and enzyme activity of Cyprinus carpio communis fingerlings

  This study aimed to determine a feed formulation with best protein to energy ratio which would result in better liver composition and enzyme activity of Cyprinus carpio communis. Fingerlings having average weight 1.64 g ± 0.13 and length 5.26 ± 0.10 cm were fed on four different formulated feeds and a control feed (each in a triplicate set), 6% of their body weight, three times a day,...

Author(s): Muzaffar Ahmad., Qureshi T. A. and Singh A. B.

January 2012

Effect of dietary carbohydrate to lipid ratios on growth, feed conversion, protein utilisation and body composition in climbing perch, Anabas testudineus

  An 8-week feeding trial was conducted in a static indoor rearing system with 15 cylindrical fibre glass tanks (80 cm diameter, 75 cm deep, 70-L each) to investigate the optimum carbohydrate to lipid ratio (CHO:L ratio) in climbing perch, Anabas testudineus (2.15 ± 0.07 g). Five isonitrogenous (40% crude protein) and isoenergetic (17.71 kJ g-1 gross energy (GE)) fishmeal based...

Author(s):     M. Z. Ali, M. Zaher, M. J. Alam and M. G. Hussain

January 2012

The sediment characteristic and benthic macro-invertebrate fauna of some fish ponds in Ife north local government area (LGA), Nigeria

  This study investigated the sediment characteristics as well as the taxonomic composition of macrobenthic invertebrate faunae of some ponds in Ife north local government area,(LGA) Nigeria. The sediments were generally sandy, moderately acidic (pH range of 3.8 to 5.8) and well drained. The organic carbon of the sediment were within the usual range of 0.5 to 5% organic carbon while the nutrients...

Author(s): A. A. Adedeji, I. F. Adeniyi and O. R. Adetokunbo

December 2011

Histopathology of Nile Tilapia (Oreochromis niloticus) juveniles exposed to aqueous and ethanolic extracts of Ipomoea aquatica leaf

  The effect of aqueous and ethanolic extracts of Ipomoea aquatica leaf on the histopathology of selected organs of the fresh water Oreochromis niloticus was investigated. The differential acute toxicity of aqueous and ethanolic extracts of I. aquatica leaf on Nile Tilapia,O. niloticus were carried out under laboratory conditions.  The LC50 after 96 h of...

Author(s): Ayoola Simeon Oluwatoyin

December 2011

Rheological changes of sea cucumber Stichipus japonicus during different heated times

  Changes in tissue structure, weight, volume and rheological properties of sea cucumber meat were studied. Sea cucumber Stichopus japonicus was heated at 70°C for 1, 2, 6, 10 and 24 h, respectively. Microscopic photograph revealed that the structure has significant changed. When heated from 1 to 24 h. The weight, volume, rupture strength, and elastic moduli of sea cucumber meat decreased...

Author(s): Xin Gao, Zhaohui Zhang, Lianfeng Liu and Qian Liu

December 2011

Profitability analysis of small scale aquaculture enterprises in Central Uganda

  The study had three overriding objectives. Firstly, to assess the profitability of small-scale aquaculture production enterprises in central Uganda; secondly, to ascertain the factors affecting profitability; and thirdly, to identify the constraints to fish farming in the region.The data were collected through a survey questionnaire administered to a random sample of 200 small scale fish farmers in the three...

Author(s): Theodora S. Hyuha, James O. Bukenya, Julius Twinamasiko and Joseph Molnar

December 2011

Morphometric measurements and growth patterns of four species of the genus Synodontis (cuvier,1816) from Lower Benue River, Makurdi, Nigeria

  Relationship between basic morphometric measurements and growth pattern of four species of Synodontis from Lower Benue River was investigated bi-monthly from February toOctober, 2009 to determine variations and differences in the growth pattern of the different populations. Morphometric parameters of a total number of 195 specimens of Synodontisclarias, Synodontis...

Author(s): Akombo P. M., Atile J. I., Adikwu I. A. and Araoye P. A.

November 2011

Effect of stocking density on nutritive value of natural food and growth performance of Oreochromis niloticus (Linnaeus, 1758) reared in extensive aquaculture ponds

  The effects of stocking density (0.1, 0.5, 1 and 1.5 fish.m-2) on the nutritional value of the natural food source (total suspended solid (TSS) and sediment), diet quality and growth performance of fingerlings of Oreochromis niloticus were studied in ponds. The nutritional value of TSS expressed in terms of hydrolysable organic matter (HOM) and total amino...

Author(s): Célestin M. Blé, Laurent Y. Alla, Antoinette A. Adingra, Sébastien Niamké and Jacques K. Diopoh

November 2011

Parasites of landed fish from Great Kwa River, Calabar, Cross River State, Nigeria

  Parasites of landed fish from the Great Kwa River, Calabar, Cross River State, Nigeria were studied. Parasitological examination of 180 fish samples belonging to 9 taxa from the River showed 50% incidence for Chrysicthys nigrodigitatus, 16.67% for Heterotis noloticus, Clarias gariepinus and Tilapia galileaus respectively and 0% for Hepsetus odoe, Arius gigas, Momyrus rume,...

Author(s): Ekanem A. P., Eyo V. O. and Sampson A. F.

November 2011

Food and feeding habits of Ophiocephalus obscura (African snakehead) in the Cross River estuary, Cross River State, Nigeria

Studies conducted on the food and feeding habits of Ophiocephalus obscura in the Cross River estuary, Cross River State, Nigeria, between February and April, 2009 revealed that the species feed mostly on food from animal origin, although diatoms and other plant materials were also identified. A total of 149 plant materials (15.95%) and 77 diatoms (8.24%) were consumed by the species. Food from animal origin...

Author(s): George Ubong Uwem, Ekanem Albert P. and George Eni

November 2011

Comparative effects of crude oil on juveniles Clarias gariepinus and Clarias anguillaris

  This study was based on biochemical assessment of the effect of crude oil spillage on marine life. Hence, life sustaining indices such as pH, dissolved oxygen (DO), and free CO2 were analyzed in aquaria. However, a 96 h static acute toxicity test was also investigated on the juveniles Clarias gariepinus (African catfish) and Clarias anguillaris(mudfish) on exposure to different...

Author(s): Awoyinka O. A., Atulomah E. and  Atulomah N. O. S.

October 2011

Reverse transcriptase polymerase chain reaction is a sensitive diagnostic tool for detection of nodavirus infection in Macrobrachium rosenbergii

  Macrobrachium rosenbergii is the most important cultured Palaemonid in the world. It is farmed on a large scale in many countries including India, once upon a time this species was considered as disease free animal but towards the later part of 2001, the hatchery and nursery pond of these animals suffered a massive loss due to a new viral disease named white tail disease. Till date different diagnosis...

Author(s): D. P. Behera, K. Devdas and L. Nayak

  • Article Number: 9511AE140389

October 2011

Growth and nutrient efficiency of meagre (Argyrosomus regius, Asso1801) fed extruded diets with different protein and lipid levels

  Four commercial diets containing different levels of crude protein and crude lipid (44/25, 43/21, 46/20 and 47/20%) were assayed in duplicated groups in juvenile meagre (Argyrosomus regius) (initial individual weights were 94 g) in an experiment lasting 173 days. The essential amino acid contents (expressed in g/kg of diet basis) in diets 46/20 and 47/20 were higher than in diets 44/25 and...

Author(s): Silvia Martínez-Llorens, Javier Espert, Javier Moya, Miguel Jover Cerdá and Ana Tomás-Vidal

  • Article Number: 90FEDFC40391

October 2011

Fish colonization of artificial reefs in the Persian Gulf (Bandar Lengeh-Iran): Reef designs and seasonal changes of fish abundance

  Artificial reefs are used as a management tool to compensate for overfishing and anthropogenic degradation. In the present study, to find the best artificial structure for enhancing of fish yields, the values of total fish catch and its seasonal changes were investigated in different forms of artificial structures placed in costal waters of Persian Gulf (Bandar-e-Lengeh-Iran). For this purpose, eight...

Author(s): Daniel Ajdari, Saeed Hajirezaee and Zahra Ajdari

  • Article Number: 6D0121940393

October 2011

A karyological analysis of Puntius conchonius (Hamilton, 1822) (Pisces, Cyprinidae), a new cytotype from Dal Lake Srinagar Kashmir, J&K, India

  The karyotypic and cytological characteristics of Rosy barb, Puntius conchonius (Hamilton, 1822) (cyprinidae) were investigated by examining metaphase chromosomes spreads from the anterior kidney following Thorgaard and Disney (1990). The fishes were obtained from the local fishermen and transported live to the Limnology and Fisheries Laboratory of Centre of Research for Development, University of...

Author(s): Farooq A. Ganai and A. R. Yousuf

  • Article Number: 8A449C040394

September 2011

Effect of beach seine height and mesh size on catch characteristics in the southern part of the Caspian Sea

  In this study, the influence of height and mesh size of beach seine net on the amount of fishing, length frequency and species composition of caught fish was examined. Two beach seine nets with 20 and 24 m heights and each net with 30 and 33 mm center part mesh size were used by two fishing cooperatives during 2008 and 2009. Rutilus frisii kutum and Mugil auratus were selected as...

Author(s): Seyed Aminollah Taghavi Motlagh, Saeed Gorgin, Hasan Fazli and Shahram Abdolmaleki

  • Article Number: 73E73CE40385

September 2011

A karyological analysis of Puntius conchonius (Hamilton, 1822) (Pisces, Cyprinidae), a new cytotype from Dal Lake Srinagar Kashmir, Jammu and Kashmir (J&K), India

  The karyotypic and cytological characteristics of Rosy barb, Puntius conchonius (Hamilton, 1822) (cyprinidae) were investigated by examining metaphase chromosomes spreads from the anterior kidney following Thorgaard and Disney (1990). The fishes were obtained from the local fishermen and transported live to the Limnology and Fisheries Laboratory of Centre of Research for Development, University of...

Author(s): Farooq A. Ganai and A. R. Yousuf

  • Article Number: 898048440383

September 2011

Socio-economic evaluation of rural women and the estimation of profitability of fish marketing in four markets in Nigeria

  The level of unemployment, poverty, hunger and disease is growing at an alarming rate in developing countries despite global technological and entrepreneurship development. Fish is known to be the most important food commodity handled by rural women in Katcha Local Government area of Niger State because of abundant water from River Niger and streams. This study examined the socio-economic characteristics of...

Author(s): Yisa T. A., Tsadu S. M. and Mohammed I.

  • Article Number: EC7B19040383

August 2011

Reproductive biology, length–weight relationship and condition factor of the African snake head, Parachanna obscura, from River Oshun, South-west Nigeria

  Aspects of the biology of the African snake head, Parachanna obscura, obtained from River Oshun, South-west Nigeria, from August 2006 to February 2007, were studied. Fish were captured with gill nets. The species attained a maximum total length of 36.4 cm and body weight of 389.36 g. The length/weight relationship indicated allometric growth for males and isometric growth for females. Gonado-somatic...

Author(s): Olurin K. B. and Savage O. D.

  • Article Number: BC2CF675454

August 2011

Aquaculture in Europe: Media representations as a proxy for public opinion

  Fish is traditionally considered a healthy and pure food. However, with the development of modern aquaculture, a range of potentially controversial issues are emerging. These could significantly impact the future success of the industry. In the absence of in-depth data on lay perceptions on farmed fish and fish farming, this paper utilises media representations as a proxy for public opinion. Media...

Author(s): Anne Katrin Schlag

  • Article Number: B2A9BEC40383

August 2011

Evaluation of some heavy metals in Pangasius hypothalmus and Tilapia nilotica and the role of acetic acid in lowering their levels

  Concentrations of cadmium, mercury, manganese, phosphorus, lead and zinc in samples of Basa fish (Pangasius hypothalmus) and some fresh water fish (Tilapia nilotica, named Bolti and Karmout) collected from Kafer-El-Zayat were determined. Karmout fish contained the highest level of metals where phosphorus level was 3.45 μg/g, lead (1.51μg/g), zinc (1.03 μg/g), cadmium (0.17 μg/g),...

Author(s): Tarek Elnimr

  • Article Number: F7E90A040382

August 2011

Pork production system and its development in mainland China

  Livestock production and marketing have been driven by the growing consumer demand for high quality and low cost animal protein. As a result, intensive livestock industries have been rapidly developing globally. International trade, especially with China, creates new opportunities and challenges for the emerging international agriculture market. China provides an enormous market for international trade by...

Author(s): Heng-wei Cheng, You-ming Wang, Qing-ping Meng, Jia Guo and Yi-zheng Wang

  • Article Number: BA0E92D40384

July 2011

Economic performance of crab fishery in Lagos lagoon, Nigeria

The study evaluates the economic performance of small-scale crab fishery operations in terms of economic indicators and success performance during 2009 and 2010 fishing season in five lagoon systems in Lagos state. The objectives of the study were to state economic viability of the crab fishing activity and to identify factors influencing the cost structure. Initial analysis reveals that a large variation in cost...

Author(s): O. A. Adeogun, B. B. Solarin, H. K. Ogunbadejo, E. E. Ambrose, O. R. Akinnigbagbe, A. A. Ajulo, Bolaji D. A., O. A. Olusola and M. O. Adeogun 

  • Article Number: DCA997D4056

July 2011

Bioremediation of ammonia and nitrite in polluted water

High ammonia nitrogen is a key limiting factor in polluted waters or intensive aquaculture system. Removal of unionized ammonia (NH3) and nitrite (NO2) through biological activity is thus an important tool for changing such ecosystem. Nitrifying bacterial inoculants are the biologically active materials which may be used in intensive aquaculture for bioremediation. In all, 12 treatments were used with two replications...

Author(s): P. Barik, H. K. Vardia and S. B. Gupta

  • Article Number: 27010514072

July 2011

Fatty oil composition of Osteobrama belangeri (Val.) from Manipur

The fatty oil content of Osteobrama belangeri and its chemical compositions were determined by the analysis of fatty acid methyl esters using gas chromatography (GC) and gas chromatography/mass spectrometry (GC-MS). A total of eighteen compounds were identified constituting about 96.1% and 96.7% of the crude head and body oils. Ten compounds were identified as major fatty acids in the oil and the main acids...

Author(s): Virendra Singh Rana, Basudha Devi and Maria AmparoBlazquez

  • Article Number: FC66A954094

June 2011

Fatty acids content and profile of common commercial Nile fishes in Sudan

The muscle tissues of the Nilefishes: Lates niloticus, Bagrus bayad, Oreochromis niloticus, Synodontis schall and Tetraodon lineatus were analyzed for fatty acids compositions and profiles by gas liquid chromatography. Of the thirty-three fatty acids of different saturation levels detected, the predominant fatty acids were palmitic acid (C16:0), stearic acid (C18:0), oleic acid (C18:1ω9),...

Author(s): Elagba Haj Ali Mohamed and Gamal Nasser Al-Sabahi

  • Article Number: AD493F94027

June 2011

Research on in vitro culture and inducing nacre crystal formation of freshwater pearl mussel mantle epithelial cell Sinohyriopsis cumingii

The foundation of natural pearl formation by mussels is calcium carbonate in the form of aragonite crystals, secreted essentially by the epithelial cells of mantle tissue as nacre. The in vitro explant culture of nacre secreting pallial mantle explants of freshwater pearl mussel was a vital step in the approach to the establishment of quality of pearl mussel species, by screening pearl mussel species that are...

Author(s): Pham Van Phuc, Pham Quoc Viet, Nguyen Minh Hoang, Nguyen Thanh Tam and Phan Kim Ngoc

  • Article Number: 7F8D69D4034

June 2011

Growth, survival and proximate body composition of Labeo rohita larvae fed artificial food and natural food organisms under laboratory condition

This investigation was carried out to study the effect of different live feed and dry feed on growth and  survival of Labeo rohita at a stocking density of 20 larvae per trough having 10 L of water. The increase  in weights and lengths were used as measures of growth. The duration of the experiment was 30 days.  Seven dietary treatments were tested viz. Artificial diet with 45% protein (LFr1),...

Author(s): Yahya Bakhtiyar , Seema Langer, S.K. Karlopia and Imtiaz Ahmed

  • Article Number: BCD9A694043

May 2011

Proximate composition of catfish (Clarias gariepinus) smoked in Nigerian stored products research institute (NSPRI): Developed kiln

The effect of drying on proximate compositions of catfish (Clarias gariepinus) using Nigerian Stored Products Research Institute (NSPRI) developed kiln was determined. The purchased quantities of catfish were shared into two parts; one part was used to determine the proximate compositions of the raw fish and the other part was dried using smoking kiln at a temperature range of 60 to 70°C for 15 h. The proximate...

Author(s): Olayemi Folorunsho Foline, Adedayo Majekodunmi Rachael, Bamishaiye Eunice Iyabo and Awagu Emenike Fidelis

  • Article Number: 58931C64008

May 2011

Differences in fatty acid composition of egg capsules from broodstock spotted babylon, Babylonia areolata, fed a local trash fish and formulated diet under hatchery conditions

This study was the first attempt to condition broodstock Babylonia areolata using the formulated diets under hatchery conditions. Samples of spotted babylon egg capsules from broodstock, which had been fed either a formulated diet or a local trash fish, carangid fish (Seleroides leptolepis) for 120 days were analyzed for proximate composition and fatty acid composition. The formulated diet contained...

Author(s): N. Chaitanawisuti, S. Sangsawangchote and S. Piyatiratitivorakul

  • Article Number: 0D96A623998

April 2011

Monosex production of African catfish, Heterobranchus longifilis, through gynogenesis and androgenesis

This study examined the economic viability of the use of microfinance bank loan on aquaculture development in Ogun state, Nigeria. The simple random sampling technique was used in selecting eighty aquaculturists that provided the primary data used in this study. The primary data were collected with the aid of well-structured, validated and pre-tested sets of interview schedules, administered through personal interviews...

Author(s): Olufeagba S. O. and Yisa Moses

  • Article Number: 7BD92A53915

April 2011

Economic viability for the use of microfinance bank loan on aquaculture development in Ogun State, Nigeria

This study examined the economic viability of the use of microfinance bank loan on aquaculture development in Ogun state, Nigeria. The simple random sampling technique was used in selecting eighty aquaculturists that provided the primary data used in this study. The primary data were collected with the aid of well-structured, validated and pre-tested sets of interview schedules, administered through personal interviews...

Author(s): Olaoye, Olalekan Jacob and Odebiyi, Oluwaseun Christianah

  • Article Number: BD8B56D3936

April 2011

Comparisons between two production–scale methods for the intensive culture of juveniles spotted babylon, Babylonia areolata, to marketable sizes

This study is the first attempt to compare the aquaculture potential on growth, production and economic analysis for growth of spotted babylon juveniles (Babylonia areolata) to marketable sizes using the large-scale operation of flow-through canvas ponds and earthen ponds. This study shows that the average growth rates in body weight were 0.91-1.07 g/month and 0.82 - 0.98 g/month for the canvass pond and earthen...

Author(s): N. Chaitanawisuti, S. Kritsanapuntu and W. Santaweesuk

  • Article Number: 061A3A63956

March 2011

Successful artificial reproduction of the African carp: Labeo parvus Boulenger, 1902 (Pisces: Cyprinidae)

The effectiveness of hormonal treatments to induce gamete emission in Labeo parvuswas investigated in two spawning seasons (2007 and 2008). Brood fishes measuring 15 to 30 cm were gill netted in the Ouémé River (Benin) during their migration to their spawning habitat and then held in captivity (ponds). Captive fish (N = 30 males and N= 37 females) were treated with GnRHa combined with a dopamine...

Author(s): Elie Montchowui,  Clément A. Bonou,  Philippe Lalèyè, Jean-Claude  Philippart and Pascal Poncin

  • Article Number: 7BC75483833

March 2011

Multidisciplinary identification of clupeiform fishes from the Southwestern Atlantic Ocean

In the Southwestern Atlantic Ocean, several described species of Clupeiformes overlap their geographical distribution in the coastal areas from Rio Grande do Sul (Southern Brazil) to Bahía Blanca (Argentina) and the Río de la Plata estuary. Larvae and juveniles of the SW Atlantic menhaden Brevoortia aurea are very difficult to discriminate from those of other clupeids belonging to the...

Author(s): Graciela García, Gustavo Martínez, Susana Retta, Verónica Gutiérrez, Julia Vergara, and  María de las Mercedes Azpelicueta

  • Article Number: 68A53113855

March 2011

Bioindicators for siting the carpet clam Tapes decussatus L. farming in Mediterranean lagoons

With a worldwide increase in shellfish aquaculture and awareness towards sustainable practices, this paper provides a method based on bioindicators for identifying a suitable site for rearing the carpet clam Tapes decussatus in a lagoon of the South Adriatic coast of Italy (Varano lagoon). Although the species is naturally widespread in Italian coastal lagoons, it was in fact absent from Varano lagoon. However, we...

Author(s): Cilenti Lucrezia, Scirocco Tommaso, Specchiulli Antonietta, Florio Marisa and  Breber Paolo

  • Article Number: E823B043879

February 2011

Reproductive biology and some observation on the age, growth, and management of Tilapia zilli (Gerv, 1848) from Lake Timsah, Egypt

In the present investigation, some biological aspects of Tilapia zillii from Lake Timsah were studied. This was carried out on 700 fish samples collected during the period from October, 2002 to September, 2003. Total length of females ranged from 7 to 16 cm and males from 8 to 21 cm. Age determination based on length frequency distributions showed that the life span are two and four years for females and...

Author(s): Waheed Farg-Alla Mahomoud, Amal Mohamed Mahmoud Amin, Kamal Fathey Elboray Amal Mohamed Ramadan and Magdy Mostafa Kamal Osman EL-Halfawy  

  • Article Number: 994DD363785

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