DOCSLIB.ORG

Effects of Dietary Feeds on the Growth Performance and Survivability of Stinging Catfish, Heteropneustesfossilis (Bloch, 1794) Fingerlings”

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Effects of Dietary Feeds on the Growth Performance and Survivability of Stinging Catfish, Heteropneustesfossilis (Bloch, 1794) Fingerlings” “Effects of Dietary Feeds on the Growth Performance and Survivability of Stinging Catfish, Heteropneustesfossilis (Bloch, 1794) Fingerlings” BY Examinations roll no. 605 Session: 2008-2009 Registration no. HA-912 A thesis submitted in the partial fulfillment of the requirements for the degree of Master of Science (MS) in Fisheries Previous degree: Bachelor of Science (Hon’s) in Fisheries Department of Fisheries University of Dhaka Department of Fisheries University of Dhaka Dhaka-1000, Bangladesh Dhaka University Institutional Repository CERTIFICATE This is to certify that this thesis entitled, “Effects of Dietary Feeds on the Growth Performance and Survivability of Stinging Catfish, Heteropneustesfossilis (Bloch, 1794) Fingerlings” submitted by Md. JonayedHossain, Exam. Roll: Curzon- 605, Session: 2012-2013, Registration No.: HA-912, Session: 2008-2009 has been carried out under our supervision. This is further to certify that this is an original work and suitable in partial fulfillment for the degree of MS in Fisheries, University of Dhaka. Anwar Hossain Shankar Chandra Mandal Assistant Professor Assistant Professor Department of Fisheries Department of Fisheries University of Dhaka University of Dhaka Dhaka-1000, Bangladesh Dhaka-1000, Bangladesh Md. AlamgirKabir Lecturer Department of Fisheries University of Dhaka Dhaka-1000, Bangladesh Dhaka University Institutional Repository Acknowledgements All praises belong to the Almighty Allah, who is the most gracious and the most merciful, for successful completion of the work. I express heartfelt gratitude and appreciation to my reverent teacher and research supervisor Anwar Hossain and Shankar Chandra Mandal, Assistant Professor, Department of Fisheries, University of Dhaka; for his incessant supervision, designing the study, guidance and constructive criticism throughout the work. I am also beholden to him for his boundless patience for careful reading and reviewing the write-up. I also express my heartfelt feelings for my co-supervisor Md. AlamgirKabir, Lecturer, Department of Fisheries, University of Dhaka for his kind assistance to complete my thesis. I am also indebted to Mrs. WahidaHaque, Chairperson, Department of Fisheries, University of Dhaka for giving me the opportunity to use departmental laboratory, and also to Dr. Md. GhulumMostafa and Dr. Mahmud Hasan, Professor, Department of Fisheries, University of Dhaka for their encouragement and assistance to complete the work. Special thanks to Mr. Mohammad MamunChowdhury, Associate Professor, also to Dr. Mohammad ShamsurRahman, Assistant Professor, and all other teachers of Department of Fisheries, University of Dhaka. Special thanks must go to my beloved friend, Mahmud for his outmost help during laboratory works and continuous encouragement. I am also delighted to express my wholehearted feelings of thankfulness and gratefulness to Lab attendances of the Department of Fisheries. March, 2014 The Author i Dhaka University Institutional Repository ABSTRACT Stinging catfish (Heteropneustesfossilis) is a highly nutritious food and contribute to the fulfillment of animal protein. Now a day, this fish are commercially cultured through the country. Fish feeds play important roles in growth, survival and development of stinging catfish. But due to inadequate knowledge on effects of feeds on growth, survival and development of stinging catfish, mass and quality production of this fish is not possible. Thus the present study was conducted to evaluate the effects of three different feeds on growth, survival and development of stinging catfish. There were three types of feeds used including Live Tubifex, Tubifexpowder (58% protein) and Pellet feed (20% protein) in the experiment. Feeding rates were evaluated (5%), as a percentage of fish body weight, with three replicates per treatment. All fingerlings were of the same age at stocking; with a mean weight of 8.04 ± 0.01 g. The fishes were fed twice per day at 9.30 to10.30 a.m. and 3.30 to 4.30 p.m. respectively. At the beginning of the experiment and at 7 day intervals all the fish from each aquarium were collected, counted, individually weighed (nearest mg) for 45 days. Final weights were significantly greater (p< 0.05) than initial weights in the entire feeding rate. After 45 day rearing, the mean harvesting weights of stinging catfish, Shingi were 48.53 ± 1.13g, 28.97 ± 0.24g and 25.67 ± 0.49g respectively in T1, T2, and T3. Significantly higher mean weight of fish (g) was found in stinging catfish at 45 day fed with live tubificid worm than that of others (P<0.05). The mean weights of stinging catfish, Shingi in three treatments such as T1, T2 and T3 were significantly different (p<0.05) from each other. The best survival was found in T1 (90%) among the treatments fed with live tubificid worm. The best feed conversion ratio (1.5167 ± 0.02028) was observed in T1. Significantly the highest specific growth rate (4.5833 ±0.04631) was obtained in T1.Significantly higher value (17.48 ± 0.28) of protein content was measured in stinging catfish at 45 day fed with live tubificid worm (P<0.05). The objective of the present study was to assess the possibility of improving growth performance of stinging catfish fingerlings with supplemented feeds. As stinging catfish was being grown with several options of feed including three types of feeds, Live Tubifex, Tubifexpowder and Pellet feed were tested. ii Dhaka University Institutional Repository Table of Content Chapter Title Page Acknowledgements i Abstract ii Contents iii List of tables vi List of figures vii 1 INTRODUCTION 1.1 General Background 1 1.2 Rationale 2 1.3 Problem statement 3 1.4 Research needs 3 1.5 Objectives 4 2 MATERIALS AND METHODS 5 2.1 Experimental fish 5 2.2 Scientific classification of Heteropneustes fossilis, 5 (Bloch, 1794) 2.3 Collection of Samples 6 2.4 Study Place 6 2.5 Study period 6 2.6 Experimental Design 6 2.7 Feeding trial of fish 7 2.8 Apparatus and Materials 7 2.9 Experimental feed 7 2.10 Shingifingerling growth trial 8 iii Dhaka University Institutional Repository 2.10.1 Fish sampling Procedure 8 2.10.2 Analysis of experimental data 8 2.10.2.1 Average Daily Gain (ADG, g/day) 8 2.10.2.2 Specific Growth Rate (SGR ,%) 9 2.10.2.3 Feed Conversion Ratio (FCR) 9 2.10.2.4 Determination of growth performance 9 2.11 Water Quality Monitoring 10 2.11.1 Water temperature(ºC) 10 2.11.2 Dissolved oxygen (DO) 10 2.11.3 Hydrogen ion concentration (PH) 10 2.11.4 Conductivity 10 2.11.5 Turbidity in water 10 2.12 Analytical methods for determination of biochemical 10 composition 2.12.1 Sample preparation 11 2.12.2 Determination of Moisture Content 11 2.12.3 Determination of the protein content 12 2.13 Statistical analysis 13 3 RESULTS 3.1 Effects on the growth performance of stinging catfish 18 fingerlings fed with different feed. 3.1.1 Growth Performance 18 3.1.2 Survival rate(%) of stinging catfish fingerlings 19 3.1.3 Average Daily Gain (ADG, g/day) 20 iv Dhaka University Institutional Repository 3.1.4 Specific Growth Rate (SGR) 21 3.1.5 Feed Conversion Ratio (FCR) 22 3.2 Water quality parameters 23 3.2.1 Water temperature(ºC) 23 3.2.2 Hydrogen ion concentration (PH) 24 3.2.3 Turbidity in water 25 3.2.4 Water Conductivity 26 3.3 Proximate Analysis of Fish Samples 27 3.3.1 Moisture Content in Fish 27 3.3.2 Protein Content in Fish 27 4 DISCUSSION 29 5 CONCLUSION AND RECOMMENDATIONS 34 5.1 Conclusion 34 5.2 Recommendations 35 REFERENCES 36 APPENDICES 42 v Dhaka University Institutional Repository LIST OF TABLES Table Title Page No. NO. 1 Weight of fish (g) (Mean ± SEM) of stinging catfish fingerlings at 45 days 18 rearing period. 2 Survival rate (%) (Mean ± SEM)of Stinging catfish fingerlings at 45 days 19 rearing period 3 Average Daily Gain, ADG (Mean ± SEM) of Stinging catfish fingerlings 20 at 45 days rearing period. 4 Specific Growth Rate, SGR (Mean ± SEM) of Stinging catfish fingerlings 21 at 45 days rearing period. 5 Feed Conversion Ratio, FCR (Mean ± SEM) of Stinging catfish 22 fingerlings at 45days rearing period. 6 Water temperature (Mean ± SEM)of Stinging catfish fingerlings at 23 45days rearing period. 7 Hydrogen ion concentration (PH) (Mean ± SEM) of Stinging catfish 24 fingerlings at 45days rearing period. 8 Turbidity in water (Mean ± SEM) of Stinging catfish fingerlings at 45days 25 rearing period. 9 Water Conductivity (Mean ± SEM) of Stinging catfish fingerlings at 26 45days rearing period. 10 Proximate composition (Mean ± SEM) at 45 days rearing period 27 vi Dhaka University Institutional Repository LIST OF FIGURS Title Page Figure No No 1 DO Meter(A), Conductivity Meter(B) And Live Tubificid Worm(C). 15 2 Powder Tubificid worm (D and F) and Pellet Feed (E). 16 3 Fish Sample ( G), Electric Balance (H), Way of taking Measurement( I & J) 17 vii Dhaka University Institutional Repository Chapter 1 Introduction 1.1 General background The first efforts at raising catfish were made in the early 1900's at several federal and state fish hatcheries. In the 1950's commercial catfish farming first started in Kansas and Arkansas. By 1965, there were over 7,000 acres of commercial catfish ponds in Arkansas, along with acreage in Louisiana, Texas, Alabama, Georgia, Oklahoma, and Kansas. From this inauspicious beginning, commercial catfish farming in Mississippi grew rapidly (Giachelli, J. W. and J. E. Waldrop. 1983). Among the air-breathing catfishes, stinging catfish (Heteropneustes fossilis) is very popular and high valued fish in Bangladesh. It is considered to be highly nourishing, palatable and tasty and well preferred because of its less spine, less fat and high digestibility in many parts of Indian subcontinent (Khan et al. 2003). Due to high nutritive value the fish is recommended in the diet of sick and convalescents.
Load more

Recommended publications
  • A REVIEW on INDUCED BREEDING of STINGING CAT FISH, HETEROPNEUSTES FOSSILIS in INDIA Dr
    International Journal of Multidisciplinary Research and Modern Education (IJMRME) ISSN (Online): 2454 - 6119 (www.rdmodernresearch.org) Volume II, Issue I, 2016 A REVIEW ON INDUCED BREEDING OF STINGING CAT FISH, HETEROPNEUSTES FOSSILIS IN INDIA Dr. D. S. Somashekar *, Dr. B. R. Kiran** & M. Venkateshwarlu*** * Department of Zoology, IDSG Government College, Chikkamagaluru, Karnataka ** Research & Teaching Assistant in Environmental Science, DDE, Kuvempu University, Shankaraghatta, Karnataka *** Department of Applied Zoology, Kuvempu University, Shankaraghatta, Karnataka Abstract: Induced breeding of Asian stinging cat fish Heteropneustes fossilis of India by various hormonal analogues is reviewed based on published information. The breeding period of cat fishes in India is variable. Environmental factors play an important role in regulating reproduction in fishes. HCG, Wova-FH and synthetic hormones viz., ovaprim and ovatide are successfully being tested for the induced breeding of fishes by various researchers in India, under different agro-climatic conditions, with varying degree of success. Even though natural spawning is the favorite method for breeding of cultivated fresh water fishes, induced breeding is necessary to control timing and synchrony of egg production. Key Words: Stinging Cat Fish, Heteropneustes Fossilis, Induced Breeding, HCG & Synthetic Hormones. Introduction: Heteropneustes fossilis is found mainly in ponds, ditches, swamps, and marshes, but sometimes occurs in muddy rivers. It can tolerate slightly brackish water. It is omnivorous. This species breeds in confined waters during the monsoon months, but can breed in ponds, derelict ponds, and ditches when sufficient rain water accumulates. It is in great demand due to its medicinal value (Froese, Rainer and Pauly, Daniel, 2011; https://en.wikipedia.org/wiki/Heteropneustes_fossilis).
    [Show full text]
  • Heteropneustes Fossilis Bloch )
    Bangladesh}. Fish. Res., 2 (2), 1998 : 139-144 Studies on the induced breeding and post-larval rearing of shing (Heteropneustes fossilis Bloch ) J.K. Saha, M.A. Islam*, M Das, S.M. Rahamatullah and M.S. Islam Department of Aquaculture Bangladesh Agricultural University Mymensingh-2202, Bangladesh * Corresponding author Abstract An experiment was conducted on induced breeding and fry rearing of shing ,Heteropneustes fossilis (Bloch) in the Department of Aquaculture, Bangladesh Agricultural University for a period of four months from April to July 1994. Hatching rate was calculated at 21.50 hrs and was found to be 45 to 55 % and the survival rate of larvae was 30 to 40 % at 26 to 29°C. Survival rate and growth rate of post larvae were found to be 50 to 60 % and 96.6 to 117.2 % respectively. Feed-3 (F 3) showed the highest survival rate and growth rate of post larvae. Key words : H. fossilis, Induced breeding, Larvae rearing Introduction The technique of induced fish breeding found its application in fish culture where it turned out to be very promising. Induced breeding is currently gaining importance in composite fish culture (Saha 1995). Heteropneustes fossilis (Bloch) locally known as "shing" is an important air breathing catfish in Bangladesh._ The nutritive and medicinal value of this fish has been recognized from time immemorial. Shing is a popular fish in Bangladesh and generally grows in pond, lake, baor, beels, and floodplains with natural care. It has been drawing the attention of more and more fish farmers in Bangladesh day by day due to its high market values, profitable culture and hardy nature.
    [Show full text]
  • Morphometric and Meristic Characteristics of the Asian Stinging Catfish Heteropneustes Fossilis (Bloch, 1794): a Key for Identification
    Volume 12, Number 4,September 2019 ISSN 1995-6673 JJBS Pages 467 - 470 Jordan Journal of Biological Sciences Morphometric and Meristic Characteristics of the Asian Stinging Catfish Heteropneustes fossilis (Bloch, 1794): A Key for Identification Md. Ataur Rahman, Md. Rabiul Hasan, Md. Yeamin Hossain*, Md. Akhtarul Islam, Dalia Khatun, Obaidur Rahman, Zannatul Mawa, Md. Sahinoor Islam, Asma Afroz Chowdhury, Most. Farida Parvin and Halima Khatun Department of Fisheries, Faculty of Agriculture, University of Rajshahi, Rajshahi 6205, Bangladesh Received November 18, 2018; Revised January 9, 2019; Accepted January 14, 2019 Abstract The present study revealed the first complete information on meristic counts covering various fin rays and morphometric characteristics using multi-linear dimensions of Heteropneustes fossilis, including length-weight relationships (LWRs) and length-length relationships (LLRs) of H. fossilis from the Gajner Beel, a wetland ecosystem in northwestern (NW) Bangladesh. A total of 333 individuals of H. fossilis were captured by different traditional fishing gears such as cast net, square lift net, gill net, and conical trap between July 2017 and June 2018. For each individual, the total numbers of fin rays were counted using a magnifying glass. The body weight (BW) was measured by a digital balance and various lengths (TL, SL, PrDL etc.) were taken using digital slide calipers to the nearest 0.01 g and 0.01 cm, accuracy, respectively. BW ranged from 3.50 to 105.23 g, and TL varied from 6.70 to 26.80 cm. The fin formula of H. fossilis is: dorsal, D. 6; pectoral, Pc.1/6-7; pelvic, Pv. 6; anal, A.
    [Show full text]
  • Use of Algae and Aquatic Macrophytes As Feed in Small-Scale Aquaculture a Review Use of Algae and Aquatic Macrophytes As Feed in Small-Scale Aquaculture – a Review
    FAO ISSN 2070-7010 FISHERIES AND 531 AQUACULTURE TECHNICAL PAPER 531 Use of algae and aquatic macrophytes as feed in small-scale aquaculture A review Use of algae and aquatic macrophytes as feed in small-scale aquaculture – A review While the contribution of small-scale aquaculture (SSA) to rural development is generally recognized, until now there has been no systematic assessment to clearly measures its contribution. The FAO Expert Workshop on Methods and Indicators for Evaluating the Contribution of Small-scale Aquaculture to Sustainable Rural Development held in Nha Trang, Viet Nam, from 24 to 28 November 2009, attempted to develop an indicator system to measure the contribution of SSA. The workshop used a number of processes and steps in the developping the indicator system, including: (i) understanding the subject of measurements; (ii) identifying an analytical framework and ratting criteria (iii) developing a list of SSA contributions; (iv) categorizing the contributions; (v) devising and organizing the indicators of contribution; and (vi) measuring the indicators. The major outcome was the development, through an iterative process, of an indicator system which can provide a good measure of the contribution of SSA based on agreed criteria (accuracy, measurability and efficiency) and the sustainable livelihood approach analytical framework which consists of five capital assets (human, financial, physical, social and natural) and can be used for various livelihoods options. F AO Cover photographs: Left: Woman collecting water chestnut fruits from a floodplain, Rangpur, Bangladesh (courtesy of Mohammad R. Hasan). Right top to bottom: Sale of water spinach leaves, Ho Chi Minh City, Viet Nam (courtesy of William Leschen).
    [Show full text]
  • Web-ICE Aquatic Database Documentation
    OP-GED/BPRB/MB/2016-03-001 February 24, 2016 ICE Aquatic Toxicity Database Version 3.3 Documentation Prepared by: Sandy Raimondo, Crystal R. Lilavois, Morgan M. Willming and Mace G. Barron U.S. Environmental Protection Agency Office of Research and Development National Health and Environmental Effects Research Laboratory Gulf Ecology Division Gulf Breeze, Fl 32561 1 OP-GED/BPRB/MB/2016-03-001 February 24, 2016 Table of Contents 1 Introduction ............................................................................................................................ 3 2 Data Sources ........................................................................................................................... 3 2.1 ECOTOX ............................................................................................................................ 4 2.2 Ambient Water Quality Criteria (AWQC) ......................................................................... 4 2.3 Office of Pesticide Program (OPP) Ecotoxicity Database ................................................. 4 2.4 OPPT Premanufacture Notification (PMN) ...................................................................... 5 2.5 High Production Volume (HPV) ........................................................................................ 5 2.6 Mayer and Ellersieck 1986 ............................................................................................... 5 2.7 ORD ..................................................................................................................................
    [Show full text]
  • Threatened Freshwater Fishes of India
    Threatened Freshwater Fishes of India Hkkd`vuqi ICAR National Bureau of Fish Genetic Resources, Lucknow (Indian Council of Agricultural Research) Threatened Freshwater Fishes of India Hkkd`vuqi ICAR National Bureau of Fish Genetic Resources, Lucknow (Indian Council of Agricultural Research) Threatened Freshwater Fishes of India, NBFGR Threatened Freshwater Fishes of India This publication is based on the outcome of several workshops on conservation categorization and management of freshwater fishes of India and inputs from fisheries experts of the country. 2010 ISBN: 978-81-905540-5-3 NBFGR Publ. Prepared by Dr. W.S. Lakra Dr. U.K. Sarkar Dr. A.Gopalakrishnan Sh. A.Kathirvelpandian No part of this publication may be produced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written permission of the publisher. Published by Dr. W.S. Lakra Director, NBFGR Canal Ring Road Lucknow-226002, U.P., India Cover design Sh. Ravi Kumar Cover photo Freshwater catfish -Bagarius bagarius Printed at Army Printing Press, 33 Nehru Road, Sadar Cantt.Lucknow-226 002 Tel : 0522-22481164 Threatened Freshwater Fishes of India, NBFGR Contents Preface i 1. Introduction 1 2. IUCN Red List System 1 3. Status of Fish Genetic Resources- Global Scenario 2 4. Conservation Assessment Efforts at NBFGR, Lucknow 3 5. Methodology of Assessing Conservation Status 4 6. Conclusion 5 7. References 6 8. Conservation Assessment Criteria's 8 9. List of Freshwater Fish Species of India under Threatened Category 11 10. List of Fish Species under Indian Wildlife (Protection) Act, 1972 19 11.
    [Show full text]
  • (Heteropneustes Fossilis) in Different Stock- Ing Densities with GIFT (Oreochromis Niloticus) and Thai Sharpunti (Bar- Bonymus Gonionotus) in Ponds
    9 JFL S | 2018 | V ol 3(1) | Pp 9-15 Research Article Production of Stinging Catfish (Heteropneustes fossilis) in different stock- ing densities with GIFT (Oreochromis niloticus) and Thai Sharpunti (Bar- bonymus gonionotus) in ponds Azhar Ali1, M. Rafiqur Rahman2*, M. Jahangir Alam3, A. Ahmed Nishat2, M. Fazla Rabbi2, M. Anamul Haque4, Rafiul Islam2, M. Rafiqul Azam3 and M. Ashik Ullah2 1Bangladesh Fisheries Research Institute, Mymensingh-2201, Bangladesh 2Department of Fisheries Biology and Genetics, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh 3Department of Fisheries, Ministry of Fisheries and Livestock, Bangladesh 4Spectra Hexa Feeds Limited, Bangladesh ABSTRACT ISSN: 2456- 6268 Stinging Catfish (Heteropneustes fossilis) was cultured with Genetically Improved Farmed Tilapia-GIFT (Oreochromis niloticus) and Thai Shrpunti (Barbonymus goniono- ARTICLE INFO tus) in ponds over a period of 6 months from 15 March to 15 September 2017 to estimate Received: 17 January 2018 the production of stinging catfish at different stocking densities. Six earthen ponds (0.06 Accepted: 19 Aril 2018 Available online: 12 June 2018 ha) were divided into three treatments. Three treatments differing in stocking densities of H. fossilis such as 148, 200 (T1), 172,900 (T2) and 197,600 (T3) per hectare were tested with two replicates each. However, O. niloticus (4940 individuals/ha) and B. gonionotus KEYWORDS (2470 individuals/ha) were stocked @ of 4940 and 2470 individuals/ha with H. fossilis. Densities Mega commercial floating fish feed was used in ponds which containing 32 to 36% (pre- GIFT Tilapia starter 36%, starter and grower 32%) crude protein. The water quality parameters were Catfish recorded within the acceptable range for fish culture.
    [Show full text]
  • Agata KORZELECKA-ORKISZ 1, Izabella SMARUJ 1, Dorota PAWLOS 3, Piotr ROBAKOWSKI 2, Adam TAŃSKI 1, Joanna SZULC 1, Krzysztof FORMICKI 1*
    ACTA ICHTHYOLOGICA ET PISCATORIA (2010) 40 (2): 187–197 DOI: 10.3750/AIP2010.40.2.12 EMBRYOGENESIS OF THE STINGING CATFISH, HETEROPNEUSTES FOSSILIS (ACTINOPTERYGII: SILURIFORMES: HETEROPNEUSTIDAE ) Agata KORZELECKA-ORKISZ 1, Izabella SMARUJ 1, Dorota PAWLOS 3, Piotr ROBAKOWSKI 2, Adam TAŃSKI 1, Joanna SZULC 1, Krzysztof FORMICKI 1* 1 Division of Fish Anatomy, Hydrobiology, and Biotechnology of Reproduction, 2 Division of Fisheries Management of Inland Waters, West Pomeranian University of Technology in Szczecin, Poland 3 West Pomeranian Research Centre in Szczecin IMUZ, Szczecin, Poland Korzelecka-Orkisz A., Smaruj I., Pawlos D., Robakowski P., Tański A., Szulc J., Formicki K. 2010. Embryogenesis of the stinging catfish, Heteropneustes fossilis (Actinopterygii: Siluriformes: Heteropneustidae). Acta Ichthyol. Piscat. 40 (2): 187–197. Background. The stinging catfish, Heteropneustes fossilis (Bloch, 1794), has recently raised interest among fish farmers, ornamental fish keepers, and pathologists. Its natural populations are threatened due to habitat loss and high fishing pressure. A number of factors may influence the reproductive success of this. The aim of this study was to assess the effect of one of such factors—the water hardness—on the course of the embryogenesis, the structure of the egg shell, the general morphology, and the behaviour of the hatched larvae. Materials and Methods. The fertilised eggs were incubated at a constant temperature of 23 ± 0.2°C in water of different hardness: 0ºGH (soft), 9ºGH (moderately soft), 18ºGH (moderately hard). Egg membranes of activated eggs were viewed under a scanning electron microscope. Also egg membranes strength and egg deformations were determined 1.5 h after fertilisation. Images of eggs and newly hatched larvae, recorded with the observa - tion sets described above, were measured and analysed.
    [Show full text]
  • THREATENED FISHES of the WORLD: Heteropneustes Fossilis (Bloch, 1794) (Siluriformes: Heteropneustidae)
    Croatian Journal of Fisheries, 2015, 73, 77 – 79 M. Y. Hossain et al.: !reatened "shes of the world: Heteropneustes fossilis http://dx.doi.org/10.14798/73.2.796 CODEN RIBAEG ISSN 1330-061X (print), 1848-0586 (online) THREATENED FISHES OF THE WORLD: Heteropneustes fossilis (Bloch, 1794) (Siluriformes: Heteropneustidae) Md. Yeamin Hossain 1*, Rafiqul Islam1, Zoarder Faruque Ahmed 2, Md. Mosaddequr Rah- man3, Md. Alomgir Hossen1, S. M. Abu Naser 1, Raisul Islam Rasel4 1Department of Fisheries, Faculty of Agriculture, University of Rajshahi, Rajshahi 6205, Bangladesh 2Department of Fisheries Management, Faculty of Fisheries, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh 3Faculty of Fisheries, Kagoshima University, 4-50-20 Shimoarata, Kagoshima 890-0056, Japan 4Department of Zoology, Anando Mohan College, National University, Gazipur 1704, Bangladesh *Corresponding Author, E-mail: yeamin.fi[email protected] ARTICLE INFO ABSTRACT Received: 30 October 2014 The threatened stinging catfish Heteropneustes fossilis is a nutritionally Received in revised form: 7 February 2015 valuable food in Asian countries but its natural populations have declined Accepted: 10 February 2015 due to over-exploitation, habitat loss and pollution, thus deserving high Available online: 11 February 2015 conservation importance for the remaining isolated, wild populations of H. fossilis in Asian countries. The results would be useful for the protection of the presence of endemic Keywords: species and sustainable fisheries in the lake. Heteropneustes fossilis Stinging catfish Vulnerable Asia How to Cite Hossain, M. Y., Islam, R., Ahmed, Z. F., Rahman, M. M., Hossen, M. A., Naser S. M. A., Rasel, R. I. (2015): Threatened fishes of the world: Hetero- pneustes fossilis (Bloch, 1794) (Siluriformes: Heteropneustidae).
    [Show full text]
  • CASE REPORTS AAEM Ann Agric Environ Med 2008, 15, 163–166
    CASE REPORTS AAEM Ann Agric Environ Med 2008, 15, 163–166 CATFISH STINGS AND THE VENOM APPARATUS OF THE AFRICAN CATFISH CLARIAS GARIEPINUS (BURCHELL, 1822), AND STINGING CATFISH HETEROPNEUSTES FOSSILIS (BLOCH, 1794) Leszek Satora1, Michał Kuciel1, Tomasz Gawlikowski2 1Poison Information Centre, Collegium Medicum, Jagiellonian University Kraków, Poland 2Clinic of Toxicology Collegium Medicum, Jagiellonian University Kraków, Poland Satora L, Kuciel M, Gawlikowski T: Catfi sh stings and the venom apparatus of the Af- rican catfi sh Clarias gariepinus (Burchell, 1822), and stinging catfi sh Heteropneustes fossilis (Bloch, 1794). Ann Agric Environ Med 2008, 15, 163–166. Abstract: The ability of catfi sh to infl ict extremely painful wounds with their pectoral and dorsal stings has been well known for many decades. The venom apparatus of the African catfi sh Clarias gariepinus (Burchell, 1822), and stinging catfi sh Heteropneustes fossilis (Bloch, 1794) is constituted by a single, sharp and stout sting immediately in front of the soft-rayed portion of the pectoral fi ns. The sting has well developed articula- tions, making it possible for it to become erect and locked. The toxicological centres in Poland have recorded 17 cases of envenomations caused by stinging catfi sh and African catfi sh; the injury was accompanied by intense pain, numbness of the site, dizziness, lo- cal oedema and erythema. In addition, systemic symptoms such as tachycardia, weakness and arterial hypotension were observed. The treatment of these injuries should include cleansing of the wound and surrounding area. Immersion of the wounded extremity in hot water (45°C) was used for the pain control. An attempt to remove any spinal sheath or remnant must be undertaken.
    [Show full text]
  • New Record of Stinging Catfish, Heteropneustes Microps (Gunther, 1864) from Vellayani Fresh Water Lake, Kerala, Southwest Coast of India
    International Journal of Science and Research (IJSR) ISSN (Online): 2319-7064 Index Copernicus Value (2013): 6.14 | Impact Factor (2014): 5.611 New Record of Stinging Catfish, Heteropneustes microps (Gunther, 1864) from Vellayani Fresh Water Lake, Kerala, Southwest Coast of India 1 2 Reenamole, G. R. , Ambili, T. Department of Zoology, Zoology Research Centre, F. M. N. C., University of Kerala Abstract: This paper documents the first record of the occurrence of stinging catfishes in Vellayani Freshwater Lake at Thiruvananthapuram district, Kerala, the southern part of Western Ghats region, which are native to Asia and endemic to Sri Lanka. Vellayani Lake, an important wetland in south India, is a natural habitat of waterfowls and the livelihood of about 100 traditional fishermen depends on the fish resources of this lake. The one year fish diversity study from June 2013 to May 2014, revealed the occurrence of the stinging catfish in the lake. The morphological taxonomy proved that the specimen is Heteropneustes microps, Gunther, 1864 (Nelson, J.S, 1994; Allaby, M, 1991; Arunachalam et al., 1999; U Fowler 1937; Devi and Raghunathan, 1999; Easa & Shaji, 2003; Hubbs & Lagler, 2004) of the family Heteropneustidae. About 42 species of freshwater fishes have been documented from the lake by various authors, primarily from the Department of Aquatic Biology and Fisheries, University of Kerala (Biju Kumar et. al, 2013). From Heteropneustidae family, Heteropneustes fossilis (Bloch, 1794) had already been identified as the native of this lake. Another species, Heteropneustes microps (Gunther, 1864) is reported for the first time from this second largest fresh water lake in Kerala.
    [Show full text]
  • SYNOPSIS of BIOLOGICAL DATA on SINGHI Heteropneustes Fossilis (Bloch, 1795)
    ICAR SYNOPSIS OF BIOLOGICAL DATA ON SINGHI Heteropneustes fossilis (Bloch, 1795) PREPARED BY N. K. Thokur & p. Dos BULLETIN NO. 39 APRIL 1986 SYNOPSIS OF BIOLOGICAL DATA ON SINGHEE ~ero£Deust~ fossili~ (8loch, 1794) N.K. THAKUR AND P. DAS Bulletin No. 39 October, 1985 CENTRAL INLAND FISHERIES RESEARCH INSTITUTE Barrackpore 743 101 India Pub lished by 0.0. Halder on behalf of Director, Central Inland Fisheries Research Institute, Barrackpore - 743 1Q1J \Jest Bengal, India. CONTENTS Page no. 1. IDENTITY 1 • 1 Definition 1 1 • 1 • 1 Descripti on 1 1 .2 Nomenclature 3 1 .2.1 Valid Scientific name 3 1 .2.2 Synonyms 3 1 .2.3 Standard Common name and verna- cular name 5 1.3 General Variability 5 1 .3.1 Genetic data 6 2. DISTRIBUTION 2.1 Natural range of distributi on 6 2.2 Ecological characterization of its habiiAt 6 3. BIONOMICS AYD LIFE l=ISTORY 6 3.1 Reproduction 6 3.1 .1 Sexuality 6 3.1 .2 Haturity 7 3.1 .3 Mating 8 3.1 .4 Fertilization 9 3.1 .5 Fecundity 9 3.1 .6 Spawning 10 3.1 .7 Induction of spawning 11 3.1 .8 Spawn 12 (ii) Page No 3.2 Larval history 12 3.2.1 Embryonic phase 12 3.2.2 Larval phase .14 3.3 Juvenile Stage 17 3.4 Adult history 17 3.4.1 Longivity 17 3.4.2 Hardiness 18 3.4.3 Competi tors 18 3.4.4 Predators 18 3.4.5 Parasites & dis.eases 18 3.4.t Injuries and abnormalities 18 3.4.7 Maximum size 19 3.5 Nutrition and .growth 19 3.5.1 Food and feeding habits 19 3.5.2 Age and growth 21 3.6 Behaviour 3.6.1 Resting and locomot"'ry behaviour 22' 3.6.2 Respiratory behaviour 22 3.6.3 Feeding behavi our 22 3.6.4 Mating behaviour 23 4.
    [Show full text]