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Variations Spatio-Temporelles De La Structure Taxonomique Et La Compétition Alimentaire Des Poissons Du Lac Tonlé Sap, Cambodge Heng Kong
Variations spatio-temporelles de la structure taxonomique et la compétition alimentaire des poissons du lac Tonlé Sap, Cambodge Heng Kong To cite this version: Heng Kong. Variations spatio-temporelles de la structure taxonomique et la compétition alimentaire des poissons du lac Tonlé Sap, Cambodge. Ecologie, Environnement. Université Paul Sabatier - Toulouse III, 2018. Français. NNT : 2018TOU30122. tel-02277574 HAL Id: tel-02277574 https://tel.archives-ouvertes.fr/tel-02277574 Submitted on 3 Sep 2019 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. THÈSE En vue de l’obtention du DOCTORAT DE L’UNIVERSITE DE TOULOUSE Délivré par : Université Toulouse 3 Paul Sabatier (UT3 Paul Sabatier) Présentée et soutenue par : Heng KONG Le 03 Juilet 2018 Titre : Variations spatio-temporelles de la structure taxonomique et la compétition alimentaire des poissons du lac Tonlé Sap, Cambodge Ecole doctorale et discipline ou spécialité : ED SDU2E : Ecologie fonctionnelle Unité de recherche : Laboratoire Ecologie Fonctionnelle et Environnement (EcoLab) UMR 5245, CNRS – -
Model of Profit Maximization of the Giant Gourami (Osphronemus Goramy) Culture
Omni-Akuatika, 13 (1): 54–59, 2017 ISSN: 1858-3873 print / 2476-9347 online Research Article Model of Profit Maximization of the Giant Gourami (Osphronemus goramy) Culture Dian Wijayanto1*), Faik Kurohman1, Ristiawan Agung Nugroho1 1Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro *Corresponding author: [email protected] Received 7 November 2016; Accepted 16 April 2017; Available online 31 May 2017 ABSTRACT This research’ objective is to develop a model of profit maximization that can be applied to the giant gourami culture. The development of fish growth model uses polynomial growth function. Profit maximization process uses the first derivative of profit equation to culture time equal to zero. This research develop the equations to estimate the culture time to reach the size target of cultured fish. This research model can be applied in the giant gouramy culture. The giant gouramy culture can produce the maximum profit at 324 days with profit of IDR. 7.847.700 per culture cycle. To achieve size target of 500 g per fish, it needs 135 days of culture time. Keywords: bioeconomy, profit maximization, the giant gouramy 1. Introduction (1992), Springborn et al. (1992), Heap (1993), Strand and Mistiaen (1999), and Wijayanto The giant gouramy (Osphronemus (2014). Bjorndal (1988) estimated the optimal goramy) is one of major fisheries commodities harvest in fish culture used fish growth base on in Indonesia. It is also one of favorite food for Beverton-Holt model. Then, Arnason (1992), Indonesian cuisine. The giant gouramy culture Heap (1993), and Strand and Mistiaen (1999) has grown in Indonesia, including the Central also developed optimization profit model base Java province. -
Reviews in Fisheries Science & Aquaculture Status of Recreational
This article was downloaded by: [134.117.10.200] On: 30 August 2015, At: 10:37 Publisher: Taylor & Francis Informa Ltd Registered in England and Wales Registered Number: 1072954 Registered office: 5 Howick Place, London, SW1P 1WG Reviews in Fisheries Science & Aquaculture Publication details, including instructions for authors and subscription information: http://www.tandfonline.com/loi/brfs21 Status of Recreational Fisheries in India: Development, Issues, and Opportunities Nishikant Guptaa, Shannon D. Bowerb, Rajeev Raghavancde, Andy J. Danylchukf & Steven J. Cookeb a Department of Geography, King's College London, Strand, London, UK b Fish Ecology and Conservation Physiology Laboratory, Department of Biology and Institute of Environmental Science, Carleton University, Ottawa, Canada c Conservation Research Group, Department of Fisheries and Aquaculture, St. Albert's College, Kochi, Kerala, India d Laboratory of Systematics, Ecology and Conservation, Zoo Outreach Organization, Click for updates Coimbatore, India e Mahseer Trust, The Freshwater Biological Association, East Stoke River Laboratory, Wareham, Dorset, UK f Department of Environmental Conservation, University of Massachusetts Amherst, Amherst, MA, USA Published online: 14 Jul 2015. To cite this article: Nishikant Gupta, Shannon D. Bower, Rajeev Raghavan, Andy J. Danylchuk & Steven J. Cooke (2015) Status of Recreational Fisheries in India: Development, Issues, and Opportunities, Reviews in Fisheries Science & Aquaculture, 23:3, 291-301, DOI: 10.1080/23308249.2015.1052366 To link to this article: http://dx.doi.org/10.1080/23308249.2015.1052366 PLEASE SCROLL DOWN FOR ARTICLE Taylor & Francis makes every effort to ensure the accuracy of all the information (the “Content”) contained in the publications on our platform. However, Taylor & Francis, our agents, and our licensors make no representations or warranties whatsoever as to the accuracy, completeness, or suitability for any purpose of the Content. -
Aliens; a Catastrophe for Native Fresh Water Fish Diversity in Pakistan
The Journal of Animal and Plant Sciences, 21(2 Suppl.): 2011, Page: 435-440 ISSN: 1018-7081 ALIENS; A CATASTROPHE FOR NATIVE FRESH WATER FISH DIVERSITY IN PAKISTAN A. M. Khan, Z. Ali, S. Y. Shelly* Z. Ahmad** and M. R. Mirza** Department of Zoology, University of the Punjab, Lahore *Department of Fisheries, Government of Punjab, Munawan, Lahore. Department of Zoology, Government College University, Lahore Corresponding author e-mail: [email protected] ABSTRACT Pakistan has introduced several alien exotic fish species e.g. grass carp (Ctenopharyngodon idella), bighead carp, (Hypophthalmichthys nobilis), silver carp, (Hypophthalmichthys molitrix), common carp (Cyprinus carpio), gold fish (Carassius auratus), and three species of tilapia (Oreochromis aureus, Oreochromis mossambicus, Oreochromis niloticus) in warm waters along with two trout species: the rainbow trout (Onchorynchus mykiss) and the brown trout (Salmo trutta fario) in colder regions for specific purposes like sport fishing, yield enhancement and biological control of aquatic weeds and mosquitoes. The exotic species are becoming invasive in the freshwater biomes of the Punjab and other provinces of Pakistan by reason of their potent reproductive potential and feeding competitions with the native freshwater fish fauna. Resultantly the native fish species viz; Channa marulius, Wallago attu, Rita rita, Sperata sarwari, Gibelion catla, Cirrhinus mrigala and Labeo rohita, which are of economic value are under threat. Key words: Exotic, invasions, freshwater, fish fauna, Pakistan. wild, 421 (35 %) are reported as not established and 177 INTRODUCTION (15 %) with unknown establishment (Fish base, 2003). In Asia, there have been 406 introduction There are more than 186 freshwater fish species records, 176 (43.3 %) are reported as having been described from freshwater bodies of Pakistan. -
Recent Trends in Breeding and Trade of Ornamental Gourami in India
See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/331717622 Recent Trends in Breeding and Trade of Ornamental Gourami in India Article in World Aquaculture · March 2019 CITATIONS READS 3 3,032 2 authors: Alok Kumar Jena Pradyut Biswas Central Institute of Fisheries Education Central Agricultural University 29 PUBLICATIONS 37 CITATIONS 62 PUBLICATIONS 132 CITATIONS SEE PROFILE SEE PROFILE Some of the authors of this publication are also working on these related projects: Effects of temperature on the Caudal fin regeneration of Flying Barb Esomus danricus (Hamilton, 1822) (Cyprinidae) View project Grow-out rearing of Indian butter catfish, Ompok bimaculatus (Bloch), at different stocking densities in outdoor concrete tanks View project All content following this page was uploaded by Alok Kumar Jena on 13 March 2019. The user has requested enhancement of the downloaded file. Recent Trends in Breeding and Trade of Ornamental Gourami in India Alok Kumar Jena, Pradyut Biswas and Sandeep Shankar Pattanaik FIGURE 2. Blue gourami Trichogaster trichopterus (Left) and pearl gourami Trichogaster leeri (Right). FIGURE 1. Banded gourami Colisa fasciatus juvenile. TABLE 1. List of gouramis indigenous to India. Common Name Scientific Name Rainbow gourami/banded gourami Colisa fasciatus Dwarf gourami/lily gourami Colisa lalia Honey gourami Colisa chuna FIGURE 3. Preparation of bubble nest by a male gourami. The ornamental fish TABLE 2. List of gouramis exotic to India. farms located in the country -
Sample Text Template
FLOODPLAIN RIVER FOOD WEBS IN THE LOWER MEKONG BASIN A Dissertation by CHOULY OU Submitted to the Office of Graduate and Professional Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Chair of Committee, Kirk O. Winemiller Committee Members, Masami Fujiwara Thomas D. Olszewski Daniel L. Roelke Head of Department, Michael Masser December 2013 Major Subject: Wildlife and Fisheries Sciences Copyright 2013 Chouly Ou ABSTRACT The Mekong River is one of the world’s most important rivers in terms of its size, economic importance, cultural significance, productivity, and biodiversity. The Mekong River’s fisheries and biodiversity are threatened by major hydropower development and over-exploitation. Knowledge of river food web ecology is essential for management of the impacts created by anthropogenic activities on plant and animal populations and ecosystems. In the present study, I surveyed four tropical rivers in Cambodia within the Mekong River Basin. I examined the basal production sources supporting fish biomass in the four rivers during the dry and wet seasons and explored the relationship between trophic position and body size of fish at various taxonomic levels, among local species assemblages, and across trophic guilds. I used stable isotopes of carbon and nitrogen to estimate fish trophic levels and the principal primary production sources supporting fishes. My study provides evidence that food web dynamics in tropical rivers undergo significant seasonal shifts and emphasizes that river food webs are altered by dams and flow regulation. Seston and benthic algae were the most important production sources supporting fish biomass during the dry season, and riparian macrophytes appeared to be the most important production source supporting fishes during the wet season. -
Growth Performance and Survival Rate of Giant Gourami Fingerlings (Osphronemus Goramy Lacepede, 1801) with Potassium Diformate Addition
Available online at www.worldscientificnews.com WSN 143 (2020) 103-114 EISSN 2392-2192 Growth performance and survival rate of giant gourami fingerlings (Osphronemus goramy Lacepede, 1801) with potassium diformate addition Algi Azmi Nugraha*, Ayi Yustiati, Ibnu Bangkit, Yuli Andriani Faculty of Fisheries and Marine Sciences, Universitas Padjadjaran, Bandung – Sumedang KM.21 Jatinangor 45363, Indonesia *E-mail address: [email protected] ABSTRACT This research aims to determine the method of adding potassium diformate to commercial feed to increase survival and growth in gourami juvenile. The method used in this research is an experimental method using a Completely Randomized Design (CRD), consists of four treatments and four replications. The treatments used are (A) Without giving Potassium diformate (control), (B) giving potassium diformate by 0.3%, (C) giving potassium diformate by 0.5% and (D) giving potassium diformate by 0.8%. The test fish used was 300 giant gourami with a length of 4-6 cm. The containers used in this research were aquariums with a size of 40 × 30 × 40 cm3 that reared in 16 aquariums. The density of giant gourami fingerlings during the research was 10 fish per aquarium. The rearing period was 40 days. The feed given was 3% of body mass. Water quality parameters (temperature, pH and dissolved oxygen) were observed every 10 days. Other parameters are the daily growth rate, feed efficiency, the survival rate and the acidity of intestinal and stomach which were observed every 10 days. The results showed that the addition of potassium diformate by 0.3% gives the best results of daily growth rate of 1.31%, feeding efficiency of 37.18%, survival rate of 100% and decreased acidity in the intestine and stomach which helps in the process of protein absorption. -
Linnaeus at Home
NATURE-BASED ACTIVITIES FOR PARENTS LINNAEUS 1 AT HOME A GuiDE TO EXPLORING NATURE WITH CHILDREN Acknowledgements Written by Joe Burton Inspired by Carl Linnaeus With thanks to editors and reviewers: LINNAEUS Lyn Baber, Melissa Balzano, Jane Banham, Sarah Black, Isabelle Charmantier, Mark Chase, Maarten Christenhusz, Alex Davey, Gareth Dauley, AT HOME Zia Forrai, Jon Hale, Simon Hiscock, Alice ter Meulen, Lynn Parker, Elizabeth Rollinson, James Rosindell, Daryl Stenvoll-Wells, Ross Ziegelmeier Share your explorations @LinneanLearning #LinnaeusAtHome Facing page: Carl Linnaeus paper doll, illustrated in 1953. © Linnean Society of London 2019 All rights reserved. No part of this publication may be reproduced, stored in a retrival system or trasmitted in any form or by any means without the prior consent of the copyright owner. www.linnean.org/learning “If you do not know Introduction the names of things, the knowledge of them is Who was Carl Linnaeus? Contents Pitfall traps 5 lost too” Carl Linnaeus was one of the most influential scientists in the world, - Carl Linnaeus A bust of ‘The Young Linnaeus’ by but you might not know a lot about him. Thanks to Linnaeus, we Bug hunting 9 Anthony Smith (2007). have a naming system for all species so that we can understand how different species are related and can start to learn about the origins Plant hunting 13 of life on Earth. Pond dipping 17 As a young man, Linnaeus would study the animals, plants, Bird feeders 21 minerals and habitats around him. By watching the natural world, he began to understand that all living things are adapted to their Squirrel feeders 25 environments and that they can be grouped together by their characteristics (like animals with backbones, or plants that produce Friendly spaces 29 spores). -
Diversity and Distribution of External Parasites from Potentially Cultured Freshwater Fishes in Nakhonsithammarat, Southern Thailand
%JTFBTFTJO"TJBO"RVBDVMUVSF7* Diversity and Distribution of External Parasites from Potentially Cultured Freshwater Fishes in Nakhonsithammarat, Southern Thailand LERSSUTTHICHAWAL THEERAWOOT Department of Fisheries, Rajamangala University of Technology Srivijaya Nakhonsithammarat Campus, Nakornsithammarat 80110, Thailand ABSTRACT Twenty-one species from 16 genera of potentially cultured freshwater fishes were examined for external parasites. Ten individuals of each fish species (mainly local species) were examined from various places in Nakhonsithammarat, southern Thailand. Five parasitic groups containing a total of 51 species were identified. They were a single ciliated protozoan, myxozoans (2 spp.), monogeneans (44 spp.), digeneans (2 spp.) and crustaceans (2 spp.). Monogenea was regarded as a major parasitic group of the fish. Dactylogyrus (Monogenea) had the highest number of species (12 spp.), whereas Trichodina sp. (Ciliophora) was the most widely distributed species, being observed on seven fish species from seven families. Most of the parasites (43 taxa or 86 %) found in this study were specific to their host species. All except red pacu (Piaractus brachypomus) and swamp eel (Monopterus albus) were infected with parasites (91 %). Lerssutthichawal, T. 2008. Diversity and distribution of external parasites from potentially cultured freshwater fishes in Nakhonsithammarat, southern Thailand, pp. 235-244. In Bondad- Reantaso, M.G., Mohan, C.V., Crumlish, M. and Subasinghe, R.P. (eds.). Diseases in Asian Aquaculture VI. Fish Health -
Information Sheet on Ramsar Wetlands (RIS) – 2009-2012 Version
Designation date: 23/06/99 Ramsar Site no. 999 Information Sheet on Ramsar Wetlands (RIS) – 2009-2012 version Available for download from http://www.ramsar.org/ris/key_ris_index.htm. Categories approved by Recommendation 4.7 (1990), as amended by Resolution VIII.13 of the 8th Conference of the Contracting Parties (2002) and Resolutions IX.1 Annex B, IX.6, IX.21 and IX. 22 of the 9th Conference of the Contracting Parties (2005). Notes for compilers: 1. The RIS should be completed in accordance with the attached Explanatory Notes and Guidelines for completing the Information Sheet on Ramsar Wetlands. Compilers are strongly advised to read this guidance before filling in the RIS. 2. Further information and guidance in support of Ramsar site designations are provided in the Strategic Framework and guidelines for the future development of the List of Wetlands of International Importance (Ramsar Wise Use Handbook 14, 3rd edition). A 4th edition of the Handbook is in preparation and will be available in 2009. 3. Once completed, the RIS (and accompanying map(s)) should be submitted to the Ramsar Secretariat. Compilers should provide an electronic (MS Word) copy of the RIS and, where possible, digital copies of all maps. 1. Name and address of the compiler of this form: FOR OFFICE USE ONLY. Dr. Srey Sunleang, DD MM YY Director, Department of Wetlands and Coastal Zones, Ministry of Environment, #48 Preah Sihanouk Blvd., Tonle Bassac, Designation date Site Reference Number Chamkar Morn, Phnom Penh, Cambodia Tel: (855) 77-333-456 Fax: (855)-23-721-073 E-mail: [email protected] 2. -
Identify Critical Fish Habitats in the Mekong River, Chiang Rai Province, Thailand
1 Final Report Identify Critical Fish Habitats in the Mekong River, Chiang Rai Province, Thailand Prepared by Mr. Boonsong Sricharoendham Ms. Suthida Soebeen Ms. Parichat Musikatham Ms. Siriwan Suksri Department of Fisheries, Thailand, December 2015 2 Executive summary The study on identify critical fish habitats in the Mekong River, Chiang Rai Province, Thailand (activity 2.2.1) is an activity under the project of Transboundary Fisheries Management in the Bordering Provinces of Bokeo, Lao PDR, and Chiang Rai, Thailand. The objectives are; 1) to identify critical habitats for spawning, nursing and refuge during dry season, 2) to discuss the relevance of these habitats for recruitment capacity of fish stocks and 3) to explore ideas for conservation of these habitats and implications for local and transboundary fisheries management. All data collection and field surveys were conducted at the four target villages and their monitoring sites nearby during June 2014 to October 2015. The 4 target villages composted of; 1) Ban Don Tee, Ban Muang Kan, 3) Ban Pak Ing Tai and 4) Ban Huai Luek where covered the distance of Mekong mainstream about 80-90 km long. PRA study and LEK expert interview were applied in the village with local communities and fisher expert. Also dominant fish gonad development and fish larvae sampling were also investigated in those area. The result found that the Mekong mainstream in Chiang Rai province located at the middle part of the total Mekong river length where about 400 m above mean sea level and 2,200 to 2,300 km far from the river headwater. -
Overview of the Key Fish Species and Their Biology in Himalayan Rivers in Nepal Tek Bahadur Gurung, Arun Baidya, Gopal Lamsal, Nita Pradhan
Overview of the key fish species and their biology in Himalayan Rivers in Nepal Tek Bahadur Gurung, Arun Baidya, Gopal Lamsal, Nita Pradhan Regional Meeting of Fish Experts 29-30 April, 2018, Hotel Yak and Yeti Organized by Kathmandu, Nepal 1 Nepal is endowed with 232 fish species, 217 indigenous in 6000 rivers, the river basins extending to China, Nepal & India in 3 river basins & 1 river system 2 Species Richness Low High mount Moderate Mid hills Flood plains Rich Cool water fish (not permanently in cold or warm waters), most life history strategies (12 to 29oC), Cold water species (7-20oC) Warm water (15 to 32oC) 3 The Key Fish Species of Himalayan Rivers Key fish species are those : • Rare, endangered, threatened RET Species in Nepal Himalaya species as per IUCN criteria • Endemic species Endemic species reported • Exhibiting Habitat Diversity Number of species at altitudinal and migratory Pathways basis and migratory pathways • Spawning Biology Ex-situ conservation • Conservation Biology In-situ co-managing conservation Most important biotic and abiotic factors of a river • Water flow • Substrate 210 cross dam projects in different rivers • Light (NEA 2013): • Temperature • 84 in operation, • Water chemistry • 34 under construction, • Bacteria • 92 proposed • Underwater plants • Invertebrates • Fish • Birds ….. and the communities Location of Cross Dams Source: ADB 2014 Flows, Fish Species & Livelihood : Generalised Scenario et al 2016al et Gurung Source : Source 6 General features of the Himalayan Rivers • Himalayan rivers have