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KEY LARGO Diver Dies Inside the ‘Grove’ Keynoter Staff Was a District Chief with Lake Dangerous
WWW.KEYSNET.COM SATURDAY, OCTOBER 19, 2013 VOLUME 60, NO. 84 G 25 CENTS KEY LARGO Diver dies inside the ‘Grove’ Keynoter Staff was a district chief with Lake dangerous. Three New Jersey Kissimmee, intended to do a County Emergency Medical Fire official, friend did penetration divers died penetration diving penetration dive on their own, A Central Florida fire- Services, near Orlando, and dive, considered most dangerous the Grove in 2007. without a guide. department commander was was with the department for The two men were on a Dorminy told Sheriff’s found dead Friday at the 15 years. Largo Fire Rescue found 2002, with his dive buddy, commercial dive vessel oper- Office Deputy Tony Code Spiegel Grove dive wreck off Dragojevich’s supervisor, Dragojevich’s body just after James Dorminy, 51, Thursday. ated by Scuba Do Dive Co. and Dive Team Leader Sgt. Key Largo after a so-called Deputy Chief Ralph 1:30 p.m. and were making The men were doing a pene- with six other divers Thursday Mark Coleman they attached penetration dive in which a Habermehl, said Dragojevich efforts to remove it. That was tration dive, meaning they afternoon. Although the dive a reel line when they entered diver actually enters the was an experienced diver and expected to take several were inside the 510-foot for- operators and other divers so they would be able to find wreck — considered that he knew Dragojevich hours to complete. mer Navy ship. Penetration reportedly did not intend to their way out. They explored extremely dangerous. was on a dive trip in the Keys. -
Electric Marine Vessels and Aquanaut Crafts
ELECTRIC MARINE VESSELS AND AQUANAUT CRAFTS. [3044] The invention is related to Electro motive and electric generating clean and green, Zero Emission and sustainable marine vessels, ships, boats and the like. Applicable for Submersible and semisubmersible vessels as well as Hydrofoils and air-cushioned craft, speeding on the body of water and submerged in the body of water. The Inventions provides a Steam Ship propelled by the kinetic force of steam or by the generated electric current provided by the steam turbine generator to a magnet motor and generator. Wind turbine provided on the above deck generating electric current by wind and hydroelectric turbines made below the hull mounted under the hull. Mounted in the duct of the hull or in the hull made partial longitudinal holes. Magnet motor driven the rotor in the omnidirectional nacelle while electricity is generating in the machine stator while the turbine rotor or screw propeller is operating. The turbine rotor for propulsion is a capturing device in contrary to a wind, steam turbine or hydro turbine rotor blades. [3045] The steam electric ship generates electricity and desalinates sea water when applicable. [3046] Existing propulsion engines for ships are driven by diesel and gas engines and hybrid engines, with at least one angle adjustable screw propeller mounted on the propeller shaft with a surrounding tubular shroud mounted around the screw propeller with a fluid gap or mounted without a shroud mounted below the hull at the aft. The duct comprises: a first portion of which horizontal width is varied from one side to the other side; and a second portion connected to one side of the first portion and having the uniform horizontal width. -
The Effect of Water Temperature on Aquatic Organisms: a Review of Knowledge and Methods for Assessing Biotic Responses to Temperature
The effect of water temperature on aquatic organisms: a review of knowledge and methods for assessing biotic responses to temperature Report to the Water Research Commission by Helen Dallas The Freshwater Consulting Group Freshwater Research Unit Department of Zoology University of Cape Town WRC Report No. KV 213/09 30 28 26 24 22 C) o 20 18 16 14 Temperature ( 12 10 8 6 4 Jul '92 Jul Oct '91 Apr '92 Jun '92 Jan '93 Mar '92 Feb '92 Feb '93 Aug '91 Nov '91 Nov '91 Dec Aug '92 Sep '92 '92 Nov '92 Dec May '92 Sept '91 Month and Year i Obtainable from Water Research Commission Private Bag X03 GEZINA, 0031 [email protected] The publication of this report emanates from a project entitled: The effect of water temperature on aquatic organisms: A review of knowledge and methods for assessing biotic responses to temperature (WRC project no K8/690). DISCLAIMER This report has been reviewed by the Water Research Commission (WRC) and approved for publication. Approval does not signify that the contents necessarily reflect the views and policies of the WRC, nor does mention of trade names or commercial products constitute endorsement or recommendation for use ISBN978-1-77005-731-9 Printed in the Republic of South Africa ii Preface This report comprises five deliverables for the one-year consultancy project to the Water Research Commission, entitled “The effect of water temperature on aquatic organisms – a review of knowledge and methods for assessing biotic responses to temperature” (K8-690). Deliverable 1 (Chapter 1) is a literature review aimed at consolidating available information pertaining to water temperature in aquatic ecosystems. -
The Global Status of Freshwater Fish Age Validation Studies and a Prioritization Framework for Further Research Jonathan J
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Nebraska Cooperative Fish & Wildlife Research Nebraska Cooperative Fish & Wildlife Research Unit -- Staff ubP lications Unit 2015 The Global Status of Freshwater Fish Age Validation Studies and a Prioritization Framework for Further Research Jonathan J. Spurgeon University of Nebraska–Lincoln, [email protected] Martin J. Hamel University of Nebraska-Lincoln, [email protected] Kevin L. Pope U.S. Geological Survey—Nebraska Cooperative Fish and Wildlife Research Unit,, [email protected] Mark A. Pegg University of Nebraska-Lincoln, [email protected] Follow this and additional works at: http://digitalcommons.unl.edu/ncfwrustaff Part of the Aquaculture and Fisheries Commons, Environmental Indicators and Impact Assessment Commons, Environmental Monitoring Commons, Natural Resource Economics Commons, Natural Resources and Conservation Commons, and the Water Resource Management Commons Spurgeon, Jonathan J.; Hamel, Martin J.; Pope, Kevin L.; and Pegg, Mark A., "The Global Status of Freshwater Fish Age Validation Studies and a Prioritization Framework for Further Research" (2015). Nebraska Cooperative Fish & Wildlife Research Unit -- Staff Publications. 203. http://digitalcommons.unl.edu/ncfwrustaff/203 This Article is brought to you for free and open access by the Nebraska Cooperative Fish & Wildlife Research Unit at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Nebraska Cooperative Fish & Wildlife Research Unit -- Staff ubP lications by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. Reviews in Fisheries Science & Aquaculture, 23:329–345, 2015 CopyrightO c Taylor & Francis Group, LLC ISSN: 2330-8249 print / 2330-8257 online DOI: 10.1080/23308249.2015.1068737 The Global Status of Freshwater Fish Age Validation Studies and a Prioritization Framework for Further Research JONATHAN J. -
Malta Fisheries
PROJECT: FAO COPEMED ARTISANAL FISHERIES IN THE WESTERN MEDITERRANEAN Malta Fisheries The Department of Fisheries and Aquaculture of Malta By: Ignacio de Leiva, Charles Busuttil, Michael Darmanin, Matthew Camilleri. 1. Introduction The Maltese fishing industry may be categorised mainly in the artisanal sector since only a small number of fishing vessels, the larger ones, operate on the high seas. The number of registered gainfully employed full-time fishermen is 374 and the number of vessels owned by them is 302. Fish landings recorded at the official fish market in 1997 amounted to a total of 887 metric tonnes, with a value of approx. Lm 1.5 million (US$4,000,000). Fishing methods adopted in Malta are demersal trawling, "lampara" purse seining, deep-sea long-lining, inshore long-lining, trammel nets, drift nets and traps. The most important commercial species captured by the Maltese fleet are included as annex 1. 2. Fishing fleet The main difference between the full-time and artisanal category is that the smaller craft are mostly engaged in coastal or small scale fisheries. The boundary between industrial and artisanal fisheries is not always well defined and with the purpose of regional standardisation the General Fisheries Council for the Mediterranean (GFCM), at its Twenty-first Session held in Alicante, Spain, from 22 to 26 May 1995, agreed to set a minimum length limit of 15 metres for the application of the "Agreement to Promote Compliance with International Conservation and Management Measures by Fishing Vessels on the High Seas" and therefore Maltese vessels over 15 m length should be considered as industrial in line with this agreement. -
Jlb Smith Institute of Ichthyology
ISSN 0075-2088 J.L.B. SMITH INSTITUTE OF ICHTHYOLOGY GRAHAMSTOWN, SOUTH AFRICA SPECIAL PUBLICATION No. 56 SCIENTIFIC AND COMMON NAMES OF SOUTHERN AFRICAN FRESHWATER FISHES by Paul H. Skelton November 1993 SERIAL PUBLICATIONS o f THE J.L.B. SMITH INSTITUTE OF ICHTHYOLOGY The Institute publishes original research on the systematics, zoogeography, ecology, biology and conservation of fishes. Manuscripts on ancillary subjects (aquaculture, fishery biology, historical ichthyology and archaeology pertaining to fishes) will be considered subject to the availability of publication funds. Two series are produced at irregular intervals: the Special Publication series and the Ichthyological Bulletin series. Acceptance of manuscripts for publication is subject to the approval of reviewers from outside the Institute. Priority is given to papers by staff of the Institute, but manuscripts from outside the Institute will be considered if they are pertinent to the work of the Institute. Colour illustrations can be printed at the expense of the author. Publications of the Institute are available by subscription or in exchange for publi cations of other institutions. Lists of the Institute’s publications are available from the Publications Secretary at the address below. INSTRUCTIONS TO AUTHORS Manuscripts shorter than 30 pages will generally be published in the Special Publications series; longer papers will be considered for the Ichthyological Bulletin series. Please follow the layout and format of a recent Bulletin or Special Publication. Manuscripts must be submitted in duplicate to the Editor, J.L.B. Smith Institute of Ichthyology, Private Bag 1015, Grahamstown 6140, South Africa. The typescript must be double-spaced throughout with 25 mm margins all round. -
NATURA 2000 SECTORIAL WORKSHOPS (Malta, 26/09/2014 - 03/10/2014)
NATURA 2000 SECTORIAL WORKSHOPS (Malta, 26/09/2014 - 03/10/2014) Workshop Report LIFE+ MIGRATE Conservation Status and potential Sites of Community Interest for Tursiops truncatus and Caretta caretta in Malta (LIFE 11 NAT/MT/1070) Sectorial Workshop Report 1_ _2 LIFE+ Project MIGRATE INDEX 5 0. EXECUTIVE SUMMARY 7 1. OPENING OF THE WORKSHOPS 7 1.1 Official opening and introduction 8 1.2 Presentation of the project results 9 1.3 Panel I: Introducing Natura 2000 11 1.4 Panel II: Natura 2000 in the Mediterranean Context. 15 2. SECTORIAL WORKSHOP – TRANSPORT AND ENERGY 15 2.1 Official opening and introduction 15 2.2 Framework and Case-studies 22 2.2 Discussion of the Natura 2000 Guidelines 29 3. SECTORIAL WORKSHOP – SECURITY AND SAFETY 29 3.1 Official opening and introduction 35 Discussion on the Natura 2000 Guidelines 41 4. SECTORIAL WORKSHOP – FISHERIES 41 4.1 Official opening and introduction 46 4.2 Discussion of the NATURA 2000 Guidelines 49 5. SECTORIAL WORKSHOP – TOURISM 49 5.1 Official opening and introduction 53 5.2 Presentation on the Natura 2000 Guidelines 57 6. SECTORIAL WORKSHOP – RESEARCH, EDUCATION AND CONSERVATION 57 6.1 Official opening and introduction 64 6.2 Presentation on the Natura 2000 Guidelines 66 ANNEX I - SPEAKERS Sectorial Workshop Report 3_ _4 LIFE+ Project MIGRATE 0. EXECUTIVE SUMMARY On September 26th and from September 29th to October 3rd of 2014, six workshops were held in Buggiba (Malta), under the venue of the Malta National Aquarium, and, in the last day, on the Nature Trust Headquarters at Marsaxlokk. -
Fosaf Proceedings of the 13Th Yellowfish Working
1 FOSAF THE FEDERATION OF SOUTHERN AFRICAN FLYFISHERS PROCEEDINGS OF THE 13TH YELLOWFISH WORKING GROUP CONFERENCE STERKFONTEIN DAM, HARRISMITH 06 – 08 MARCH 2009 Edited by Peter Arderne PRINTING SPONSORED BY: 13th Yellowfish Working Group Conference 2 CONTENTS Page Participants 3 Chairman’s Opening Address – Peter Mills 4 Water volumes of SA dams: A global perspective – Louis De Wet 6 The Strontium Isotope distribution in Water & Fish – Wikus Jordaan 13 Overview of the Mine Drainage Impacts in the West Rand Goldfield – Mariette 16 Liefferink Adopt-a-River Programme: Development of an implementation plan – Ramogale 25 Sekwele Report on the Genetic Study of small scaled yellowfishes – Paulette Bloomer 26 The Biology of Smallmouth & Largemouth yellowfish in Lake Gariep – Bruce Ellender 29 & Olaf Weyl Likely response of Smallmouth yellowfish populations to fisheries development – Olaf 33 Weyl Early Development of Vaal River Smallmouth Yellowfish - Daksha Naran 36 Body shape changes & accompanying habitat shifts: observations in life cycle of 48 Labeobarbus marequensis in the Luvuvhu River – Paul Fouche Alien Fish Eradication in the Cape rivers: Progress with the EIA – Dean Impson 65 Yellowfish Telemetry: Update on the existing study – Gordon O’Brien 67 Bushveld Smallscale yellowfish (Labeobarbus polylepis): Aspects of the Ecology & 68 Population Mananagement– Gordon O’Brien Protected River Ecosystems Study: Bloubankspruit, Skeerpoort & Magalies River & 71 Elands River (Mpumalanga) – Hylton Lewis & Gordon O’Brien Legislative review: Critical -
YWG Conference Proceedings 2014
FOSAF PROCEEDINGS OF THE 18 TH YELLOWFISH WORKING GROUP CONFERENCE BLACK MOUNTAIN HOTEL, THABA ´NCHU, FREE STATE PROVINCE Image courtesy of Carl Nicholson EDITED BY PETER ARDERNE 1 18 th Yellowfish Working Group Conference CONTENTS Page Participants 3 Opening address – Peter Mills 4 State of the rivers of the Kruger National Park – Robin Petersen 6 A fish kill protocol for South Africa – Byron Grant 10 Phylogeographic structure in the KwaZulu-Natal yellowfish – Connor Stobie 11 Restoration of native fishes in the lower Rondegat River after alien fish eradication: 15 an overview of a successful conservation intervention.- Darragh Woodford Yellowfish behavioural work in South Africa: past, present and future research – 19 Gordon O’Brien The occurrence and distribution of yellowfish in state dams in the Free State. – Leon 23 Barkhuizen; J.G van As 2 & O.L.F Weyl 3 Yellowfish and Chiselmouths: Biodiversity Research and its conservation 24 implications - Emmanuel Vreven Should people be eating fish from the Olifants River, Limpopo Province? 25 – Sean Marr A review of the research findings on the Xikundu Fishway & the implications for 36 fishways in the future – Paul Fouche´ Report on the Vanderkloof Dam- Francois Fouche´ 48 Karoo Seekoei River Nature Reserve – P C Ferreira 50 Departmental report: Biomonitoring in the lower Orange River within the borders 54 of the Northern Cape Province – Peter Ramollo Free State Report – Leon Barkhuizen 65 Limpopo Report – Paul Fouche´ 68 Conference summary – Peter Mills 70 Discussion & Comment following -
Chapter Two: Study Areas with General Materials and Methods
Chapter Two: Study Areas with General Materials and Methods 40 2 Study areas with general materials and methods 2.1 Introduction to study areas To reach the aims and objectives for this study, one lentic and one lotic system within the Vaal catchment had to be selected. The lentic component of the study involved a manmade lake or reservoir, suitable for this radio telemetry study. Boskop Dam, with GPS coordinates 26o33’31.17” (S), 27 o07’09.29” (E), was selected as the most representative (various habitats, size, location, fish species, accessibility) site for this radio telemetry study. For the lotic component of the study a representative reach of the Vaal River flowing adjacent to Wag ‘n Bietjie Eco Farm, with GPS coordinates 26°09’06.69” (S), 27°25’41.54” (E), was selected (Figure 3). Figure 3: Map of the two study areas within the Vaal River catchment, South Africa Boskop Dam Boskop manmade lake also known as Boskop Dam is situated 15 km north of Potchefstroom (Figure 4) in the Dr. Kenneth Kaunda District Municipality in the North West Province (Van Aardt and Erdmann, 2004). The dam is part of the Mooi River water scheme and is currently the largest reservoir built on the Mooi River (Koch, 41 1975). Apart from Boskop Dam, two other manmade lakes can be found on the Mooi River including Kerkskraal and Lakeside Dam (also known as Potchefstroom Dam). The Mooi River rises in the north near Koster and then flows south into Kerkskraal Dam which feeds Boskop Dam. Boskop Dam stabilises the flow of the Mooi River and two concrete canals convey water from the Boskop Dam to a large irrigation area. -
Spatio-Temporal Variation in Length-Frequency and Salinity Tolerance of Dominant Fishes Utilizing the Orange River-Estuary Continuum
WIJAS 2: 19–32 (2020) Spatio-temporal variation in length-frequency and salinity tolerance of dominant fishes utilizing the Orange River-Estuary Continuum FP Nashima Department of Fisheries and Aquatic Sciences, University of Namibia, P.O Box 462, Henties Bay, Namibia Abstract The length-frequency distribution of the dominant species of euryhaline marine Chelon richardsonii, estuarine Gilchristella aestuaria and freshwater species Labeobarbus aeneus, Mesobola brevianalis and Pseudocrenilabrus philander were investigated seasonally along the Orange River Estuary Continuum (OREC) during high-flow and low-flow periods, conducted in eight years, within 15 years (2004-2018). We sampled fish using a seine net at 18 sites spanning from the mouth of the estuary up to 35 km upstream. The length-frequency distributions of all species did not differ between the high-flow and low-flow season. Spatial differentiation in size-frequency distribution of all freshwater taxon was recorded along the river- estuarine continuum but not for C. richardsonii and G. aestuaria. Total catch-per-unit-effort (CPUE) was low for both M. brevianalis and P. philander, and their abundance declined downstream into the estuarine region as expected for these two freshwater species. A positive correlation between salinity and fish length of all five species was found, demonstrating that juvenile fishes, in particular, freshwater species are less salt-tolerant than the adults. It is concluded that the lower OREC provides a vital fish nursery habitat suitable for growth and development, particularly for marine C. richardsonii and estuarine G. aestuaria. Keywords: Catch-per-unit-effort, distribution, euryhaline, salinity, stenohaline.1 1. Introduction Length-frequency distribution measurements are fundamental to many aspects of fisheries science as they aid in understanding the state of the fish population (Pope et al., 2010). -
THESIS Submitted in Fulfilment of the Requirements for the Degree of MASTER of SCIENCE of Rhodes University
THE KARYOLOGY AND TAXONOMY OF THE SOUTHERN AFRICAN YELLOWFISH (PISCES: CYPRINIDAE) THESIS Submitted in Fulfilment of the Requirements for the Degree of MASTER OF SCIENCE of Rhodes University by LAWRENCE KEITH OELLERMANN December, 1988 ABSTRACT The southern African yellowfish (Barbus aeneus, ~ capensls, .!L. kimberleyensis, .!L. natalensis and ~ polylepis) are very similar, which limits the utility of traditional taxonomic methods. For this reason yellowfish similarities were explored using multivariate analysis and karyology. Meristic, morphometric and Truss (body shape) data were examined using multiple discriminant, principal component and cluster analyses. The morphological study disclosed that although the species were very similar two distinct groups occurred; .!L. aeneus-~ kimberleyensis and ~ capensis-~ polylepis-~ natalensis. Karyology showed that the yellowfish were hexaploid, ~ aeneus and IL... kimberleyensis having 148 chromosomes while the other three species had 150 chromosomes. Because the karyotypes of the species were variable the fundamental number for each species was taken as the median value for ten spreads. Median fundamental numbers were ~ aeneus ; 196, .!L. natalensis ; 200, ~ kimberleyensis ; 204, ~ polylepis ; 206 and ~ capensis ; 208. The lower chromosome number and higher fundamental number was considered the more apomorphic state for these species. Silver-staining of nucleoli showed that the yellowfish are probably undergoing the process of diploidization. Southern African Barbus and closely related species used for outgroup comparisons showed three levels of ploidy. The diploid species karyotyped were ~ anoplus (2N;48), IL... argenteus (2N;52), ~ trimaculatus (2N;42- 48), Labeo capensis (2N;48) and k umbratus (2N;48); the tetraploid species were B . serra (2N;102), ~ trevelyani (2N;±96), Pseudobarbus ~ (2N;96) and ~ burgi (2N;96); and the hexaploid species were ~ marequensis (2N;130-150) and Varicorhinus nelspruitensis (2N;130-148).