PROGRAMME 4 - 7 July 2017 • Boardwalk Convention Centre • Port Elizabeth • South Africa
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This Keyword List Contains Indian Ocean Place Names of Coral Reefs, Islands, Bays and Other Geographic Features in a Hierarchical Structure
CoRIS Place Keyword Thesaurus by Ocean - 8/9/2016 Indian Ocean This keyword list contains Indian Ocean place names of coral reefs, islands, bays and other geographic features in a hierarchical structure. For example, the first name on the list - Bird Islet - is part of the Addu Atoll, which is in the Indian Ocean. The leading label - OCEAN BASIN - indicates this list is organized according to ocean, sea, and geographic names rather than country place names. The list is sorted alphabetically. The same names are available from “Place Keywords by Country/Territory - Indian Ocean” but sorted by country and territory name. Each place name is followed by a unique identifier enclosed in parentheses. The identifier is made up of the latitude and longitude in whole degrees of the place location, followed by a four digit number. The number is used to uniquely identify multiple places that are located at the same latitude and longitude. For example, the first place name “Bird Islet” has a unique identifier of “00S073E0013”. From that we see that Bird Islet is located at 00 degrees south (S) and 073 degrees east (E). It is place number 0013 at that latitude and longitude. (Note: some long lines wrapped, placing the unique identifier on the following line.) This is a reformatted version of a list that was obtained from ReefBase. OCEAN BASIN > Indian Ocean OCEAN BASIN > Indian Ocean > Addu Atoll > Bird Islet (00S073E0013) OCEAN BASIN > Indian Ocean > Addu Atoll > Bushy Islet (00S073E0014) OCEAN BASIN > Indian Ocean > Addu Atoll > Fedu Island (00S073E0008) -
Fronts in the World Ocean's Large Marine Ecosystems. ICES CM 2007
- 1 - This paper can be freely cited without prior reference to the authors International Council ICES CM 2007/D:21 for the Exploration Theme Session D: Comparative Marine Ecosystem of the Sea (ICES) Structure and Function: Descriptors and Characteristics Fronts in the World Ocean’s Large Marine Ecosystems Igor M. Belkin and Peter C. Cornillon Abstract. Oceanic fronts shape marine ecosystems; therefore front mapping and characterization is one of the most important aspects of physical oceanography. Here we report on the first effort to map and describe all major fronts in the World Ocean’s Large Marine Ecosystems (LMEs). Apart from a geographical review, these fronts are classified according to their origin and physical mechanisms that maintain them. This first-ever zero-order pattern of the LME fronts is based on a unique global frontal data base assembled at the University of Rhode Island. Thermal fronts were automatically derived from 12 years (1985-1996) of twice-daily satellite 9-km resolution global AVHRR SST fields with the Cayula-Cornillon front detection algorithm. These frontal maps serve as guidance in using hydrographic data to explore subsurface thermohaline fronts, whose surface thermal signatures have been mapped from space. Our most recent study of chlorophyll fronts in the Northwest Atlantic from high-resolution 1-km data (Belkin and O’Reilly, 2007) revealed a close spatial association between chlorophyll fronts and SST fronts, suggesting causative links between these two types of fronts. Keywords: Fronts; Large Marine Ecosystems; World Ocean; sea surface temperature. Igor M. Belkin: Graduate School of Oceanography, University of Rhode Island, 215 South Ferry Road, Narragansett, Rhode Island 02882, USA [tel.: +1 401 874 6533, fax: +1 874 6728, email: [email protected]]. -
Conference on the Canadaian Shrimp Fishery
ideen Size Top and Bottom Wedges 15th 1-3/4" 36th ]IL Headrope: 34'9" Polydacron Rope 3/8" Diameter Footrope: 35'7" Polyduron Rope 3/8" Diameter Chainrope: Same as Footrope Twine: Nylon Floats: Two 8" Diameter, Four 5" Diameter, Four Gill Net Floats Chain: 3/16" Dlameter 13 Links to 8" of Footrope Wood: Hard Pine Oak 1" Thick Chain Brackets 3/16" Diameter Galvanized Chain I2-^.. L- 1/2" Door Weigtt Dry: 70 Pounds 18 Linl^ 25 Links Headrope: 66' 18" Footrope: 74' ^ 16 Llnks 23 Links Floats: Twenty-two to twenty-six 8" diameter floats Rollers: 14" diametér rollers on bosom z-1 2" ^- J2-1/2" Mesh Size: 2" stretched mesh wings and bellies 1-7/8" stretched mesh extension and cod end I I II 2-1/2" 2-1/2•, FIG. 18 Semi-balloon trawl. F I G. 19 Smal I boat trawl. Mr. Bruce 273 BCF GLOUCESTER TRAWL SHRIMP HEADROPE FOOTROPE Wing 27' Wing 30.5' Wing 27' Wing 30.5' Bosom 14' Bosom 12' Total 68' Total 73' Mesh Size Top --4— tvedge Bottom T Selvedge 14' T 14' I 1 2' 21th 2' 21th + 36th 280bd Top and Bottom Twine: Polyethylene throughout except for nylon cod end Wings Floats: Twenty-four 8-inch diameter floats evenly spaced Rollers: 14-inch diameter bosom rollers, 9-inch diameter i wing rouera FIG. 20 4-seam trawl. 274 CONFERENCE ON THE CANADIAN SHRIMP FISHERY FIG. 21 Shrimp pot designed in Maine showing entrance slot on top, cement ballast, bait string and bridles, pounds of shrimp were landed in two months. -
Wqg: Coastal Marine Waters
S O U T H A F R I C A N WATER QUALITY GUIDELINES FOR COASTAL MARINE WATERS VOLUME 4 MARICULTURE Department of Water Affairs and Forestry First Edition 1995 SOUTH AFRICAN WATER QUALITY GUIDELINES FOR COASTAL MARINE WATERS Volume 4: Mariculture First Edition, 1996 I would like to receive future versions of this document (Please supply the information required below in block letters and mail to the given address) Name:................................................................................................................................. Organisation:...................................................................................................................... Address:............................................................................................................................. ................................................................................................................................. ................................................................................................................................. ................................................................................................................................. PostalCode:........................................................................................................................ Telephone No.:................................................................................................................... E-Mail:................................................................................................................................ -
SA Wioresearchcompendium.Pdf
Compiling authors Dr Angus Paterson Prof. Juliet Hermes Dr Tommy Bornman Tracy Klarenbeek Dr Gilbert Siko Rose Palmer Report design: Rose Palmer Contributing authors Prof. Janine Adams Ms Maryke Musson Prof. Isabelle Ansorge Mr Mduduzi Mzimela Dr Björn Backeberg Mr Ashley Naidoo Prof. Paulette Bloomer Dr Larry Oellermann Dr Thomas Bornman Ryan Palmer Dr Hayley Cawthra Dr Angus Paterson Geremy Cliff Dr Brilliant Petja Prof. Rosemary Dorrington Nicole du Plessis Dr Thembinkosi Steven Dlaza Dr Anthony Ribbink Prof. Ken Findlay Prof. Chris Reason Prof. William Froneman Prof. Michael Roberts Dr Enrico Gennari Prof. Mathieu Rouault Dr Issufo Halo Prof. Ursula Scharler Dr. Jean Harris Dr Gilbert Siko Prof. Juliet Hermes Dr Kerry Sink Dr Jenny Huggett Dr Gavin Snow Tracy Klarenbeek Johan Stander Prof. Mandy Lombard Dr Neville Sweijd Neil Malan Prof. Peter Teske Benita Maritz Dr Niall Vine Meaghen McCord Prof. Sophie von der Heydem Tammy Morris SA RESEARCH IN THE WIO ContEnts INDEX of rEsEarCh topiCs ‑ 2 introDuCtion ‑ 3 thE WEstErn inDian oCEan ‑ 4 rEsEarCh ActivitiEs ‑ 6 govErnmEnt DEpartmEnts ‑ 7 Department of Science & Technology (DST) Department of Environmental Affairs (DEA) Department of Agriculture, Forestry & Fisheries (DAFF) sCiEnCE CounCils & rEsEarCh institutions ‑ 13 National Research Foundation (NRF) Council for Geoscience (CGS) Council for Scientific & Industrial Research (CSIR) Institute for Maritime Technology (IMT) KwaZulu-Natal Sharks Board (KZNSB) South African Environmental Observation Network (SAEON) Egagasini node South African -
JMS 70 1 031-041 Eyh003 FINAL
PHYLOGENY AND HISTORICAL BIOGEOGRAPHY OF LIMPETS OF THE ORDER PATELLOGASTROPODA BASED ON MITOCHONDRIAL DNA SEQUENCES TOMOYUKI NAKANO AND TOMOWO OZAWA Department of Earth and Planetary Sciences, Nagoya University, Nagoya 464-8602,Japan (Received 29 March 2003; accepted 6June 2003) ABSTRACT Using new and previously published sequences of two mitochondrial genes (fragments of 12S and 16S ribosomal RNA; total 700 sites), we constructed a molecular phylogeny for 86 extant species, covering a major part of the order Patellogastropoda. There were 35 lottiid, one acmaeid, five nacellid and two patellid species from the western and northern Pacific; and 34 patellid, six nacellid and three lottiid species from the Atlantic, southern Africa, Antarctica and Australia. Emarginula foveolata fujitai (Fissurellidae) was used as the outgroup. In the resulting phylogenetic trees, the species fall into two major clades with high bootstrap support, designated here as (A) a clade of southern Tethyan origin consisting of superfamily Patelloidea and (B) a clade of tropical Tethyan origin consisting of the Acmaeoidea. Clades A and B were further divided into three and six subclades, respectively, which correspond with geographical distributions of species in the following genus or genera: (AÍ) north eastern Atlantic (Patella ); (A2) southern Africa and Australasia ( Scutellastra , Cymbula-and Helcion)', (A3) Antarctic, western Pacific, Australasia ( Nacella and Cellana); (BÍ) western to northwestern Pacific (.Patelloida); (B2) northern Pacific and northeastern Atlantic ( Lottia); (B3) northern Pacific (Lottia and Yayoiacmea); (B4) northwestern Pacific ( Nipponacmea); (B5) northern Pacific (Acmaea-’ânà Niveotectura) and (B6) northeastern Atlantic ( Tectura). Approximate divergence times were estimated using geo logical events and the fossil record to determine a reference date. -
Shark Aggregation and Tourism: Opportunities and Challenges of an Emerging Phenomenon
Shark aggregation and tourism: Opportunities and challenges of an emerging phenomenon NIR NECKER ZIV ZEMAH SHAMIR , SHIRI ZEMAH SHAMIR NIR BECKER, DEPARTMENT OF ECONOMICS AND MANAGEMENT, TEL-HAI ACADEMIC COLLEGE, ISRAEL. E-MAIL: [email protected] ZIV ZEMAH SHAMIR, Marine Biology Department, M. Kahn Marine Research Station, University of Haifa, Haifa, Israel. E-mail: [email protected] SHIRI ZEMAH SHAMIR, School of Sustainability, Interdisciplinary Center Herzliya, P.O. Box 167, Herzliya 46150, Israel. E-mail: [email protected] Abstract In the last few winters, sharks have been aggregating near the Israeli Mediterranean coast, at a specific point, near Hadera power station. This unusual phenomenon has fascinated residents, visitors, kayakers, divers and swimmers. We analyse the effects of this intense human interest on the sharks, using contingent behaviour, in Hadera and in Ashkelon, where sharks are present but not the infrastructure for their observation. We also report on changes in shark behaviour due to change in tourism intensity. We find a change of about ILS 4.1 million annually for both sites but a larger individual consumer surplus in Hadera, where sharks are currently observable. Touristic intensity crosses the threshold level by about 12% and making the socio-equilibrium sustainable for both humans and sharks would have a social cost of ILS 0.157 million. Keywords: Shark aggregation, shark behaviour, human-wildlife conflict, Mediterranean, Travel cost, tourism. 1 1. Introduction Sharks (superorder Selachimorpha) are characterized by K-selected life history traits, including slow growth, late age-at-maturity and low fecundity. Thus, once a population is depleted, recovery to pre-exploitation levels may take several decades or longer (Kabasakal et al. -
Status of the South African and Namibian Horse Mackerel
Oceana Sustainability Report 2019 Status and Management of Horse mackerel in South Africa and Namibia, 2019 Capricorn Marine Environmental (Pty) Ltd David Japp, Daniel Droste and Zonke Gumede South Africa Biology and Stock Dynamics Horse mackerel (Trachurus capensis), better known as ‘maasbanker’ in the Western Cape, are similar to other Trachurus species caught globally in many other parts of the world. They are also classified as carangids which typically are game fish and fast swimmers (such as the kingfish commonly caught in the warmer waters of the South African east coast). Maasbanker, however, differ somewhat in that they are primarily filter feeders, although they do have a fairly broad diet that includes plankton and small swimming crustaceans (such as krill) and small fish and squid. What makes them a good commercial species is their shoaling behaviour, with large aggregations occurring in areas where plankton is abundant. Such is the case with the South African fishery, particularly on the east coast around the Agulhas Bank where adult maasbanker shoal and are targeted by the mid-water trawl fishery. Maasbanker are difficult to catch, as they are strong swimmers and migrate up and down in the water column and occur from the shallowest waters out to the deep waters of the continental shelf. In South Africa, the fisheries for massbanker can be broadly separated between three fishery sectors – a fishery using midwater trawls, a second using bottom trawls (typically for hake) and a third fishery targeting juvenile maasbanker using purse seine gear such as that used for sardine and anchovy. These variations, combined with the behaviour of maasbanker, require specific management interventions to ensure that the fishery remains sustainable into the future. -
FISHERIES RESEARCH REPORT NO. 173, 2008 Evaluation of The
FISHERIES RESEARCH REPORT NO. 173, 2008 Evaluation of the effectiveness of reducing dolphin catches with pingers and exclusion grids in the Pilbara trawl fishery Final FRDC Report – Project 2004/068 P.C. Stephenson and S. Wells Australian Government Fisheries Research and Development Corporation Fisheries Research Division Western Australian Fisheries and Marine Research Laboratories PO Box 20 NORTH BEACH Western Australia 6920 Correct citation: Stephenson, P. C. and Wells, S. (2006). Evaluation of the effectiveness of reducing dolphin catches with pingers and exclusion grids in the Pilbara trawl fishery. Final report to Fisheries Research and Development Corporation on Project No. 2004/068. Fisheries Research Report No. 173, Department of Fisheries, Western Australia, 44p. Published by Department of Fisheries, Western Australia. March 2008. ISSN: 1035 - 4549 ISBN: 1 877098 98 1 Enquiries: WA Fisheries and Marine Research Laboratories, PO Box 20, North Beach, WA 6920 Tel: +61 8 9203 0111 Email: [email protected] Website: http://www.fish.wa.gov.au ABN: 55 689 797 771 Publications may be accessed through this website. © Fisheries Research and Development Corporation and Department of Fisheries, Western Australia 2007. This work is copyright. Except as permitted under the Copyright Act 1968 (Cth), no part of this publication may be reproduced by any process, electronic or otherwise, without the specific written permission of the copyright owners. Neither may information be stored electronically in any form whatsoever without such permission. The Fisheries Research and Development Corporation plans, invests in and manages fisheries research and development throughout Australia. It is a statutory authority within the portfolio of the federal Minister for Agriculture, Fisheries and Forestry, jointly funded by the Australian Government and the fishing industry. -
The Role of Marine Protected Areas in Sustaining Fisheries
The role of marine protected areas in sustaining fisheries Callum Roberts University of York, UK After World War II there was much optimism that fisheries could feed the World. But at the beginning of the 21st century, we are not so sure. Quota management of fisheries in the European Union has failed to deliver sustainability 100 80 60 40 20 Percentage of Quota Fish Stocks of Quota Percentage 0 1970 1975 1980 1985 1990 1995 2000 Year Healthy At risk In danger Data from ICES Cod decline in the Kattegat, North Sea Extinction is the ultimate in unsustainable fishing, whether or not the species of concern are targets of the fishery What is missing from fishery management? • Real provision for habitat protection and recovery • Precautionary targets • Resolute enforcement Objectives of marine reserves Maintaining ecosystem processes and services Conservation Sustaining fisheries Tree cover www.worldwildlife.org/oceans/pdfs/fishery_effects.pdf Spillover Reproduction & Dispersal Colonization & Growth Abundance Diversity What is the evidence that reserves work? Reserves all over the world show dramatic increases in spawning stocks Usually by at least 2-3 times in 5-10 years Long-term studies in New Zealand, Philippines, Florida and many other countries show strong responses to reserve protection Fish in reserves do live longer, grow larger and produce more eggs Egg production from protected fish stocks increases by much more than stock biomass Catches do increase Soufrière Marine Management Area, St. Lucia: Established 1995 35% of reef area closed -
Summer/Autumn | 2019
Summer/Autumn | 2019 Philippines DIVE ADVENTURE What’s Bubbling ALL NEW Island of the Gods BALI Bula from FIJI Dive in SMALL GROUP TRIPS Philippines Dive Adventure Threshers, rays & critters Earlier this year, client Sara Jenner asked us to design a trip to the Philippines combining rest, relaxation and diving. In this article she describes her adventure to Malapascua and Bohol in search of thresher sharks, critters and pelagics. fter much discussion with my Travel five-minute walk to the dive centre. The with small critters and nudibranchs. Consultant (Cath), I decided on a hotel offered everything I needed plus A twin-centre holiday in the plenty of personal touches. And I can Next stop was Bohol. I stayed at Alona Philippines. I was looking for some highly recommend the ‘overnight oats’ Vida Beach Resort, which is relatively quiet much-needed rest and relaxation in the with frozen banana from the breakfast considering its central location, and the sun, with a good mix of diving (so I could buffet to set you up for the day. dive centre is situated in a lovely peaceful play with my new underwater camera) … Malapascua is famous for its pelagic site. There were plenty of great dives just a most importantly, at an affordable price, thresher sharks, and I made the necessary few hundred metres off the main beach, and the Philippines seemed to tick all these early start to see them three times during with beautiful coral-covered walls teeming boxes. my week-long stay! The diversity of macro with macro life. For bigger pelagic species life was astonishing and makes this an it’s worth heading out to Balicasag Island I started my adventure in Malapascua, ideal place for any keen photographer. -
Fishing Gear Types Single Boat Midwater Otter Trawls
Food and Agriculture Organization of the United Nations for a world without hunger Fisheries Division Fishing Gear Types Single Boat Midwater Otter Trawls Midwater Otter Trawls ISSCFG code: 03.21 – standard abbreviation: OTM Characteristics Overview A midwater otter trawl is a cone-shaped net which is towed in mid-water. It consists of a cone- shaped body, normally made of four panels, ending in a codend and the net has lateral wings extending forward from the opening. The horizontal opening is maintained by otter boards. Floats and/or sailkites on the headline and weights on the groundline provide for the vertical opening. Large modern midwater trawls are rigged in such a way that the weights in front of and along the groundline provide for the vertical opening of the trawl. The cable transmitting acoustic signal form the net sonde might also provide a lifting force that maximize the vertical trawl opening. To reduce the resistance of the gear and achieve a large opening, the front part of the trawls are usually made from very large rhombic or hexagonal meshes. The use of nearly parallel ropes instead of meshes in the front part is also a common design. The largest mesh sizes used so far are 128 m and, on modern large midwater trawls, approximately three quarters of the length of the trawl is made with mesh sizes above 400 mm. Accessory Equipment Hydrodynamic designed otter boards are used for midwater trawling. The fishing depth is usually controlled by means of a netsounder (netsonde) or depth recorders. As for other types of Trawls, catch sensors can be installed in the codend to give information about the amount of caught fish.