WESTERN th INDIAN OCEAN MARINE SCIENCE ASSOCIATION SCIENTIFIC 9 SYMPOSIUM 26th October – 31st October 2015 Wild Coast Sun Resort Eastern Cape, South Africa WESTERN INDIAN OCEAN MARINE SCIENCE ASSOCIATION SCIENTIFIC SYMPOSIUM 26th October – 31st October 2015 Wild Coast Sun Resort Eastern Cape, South Africa SPONSORS:: Coastal, Marine and Island Specific Biodiversity Management in ESA-I0 Coastal States Cover photo credits: Oceanographic Research Instittute (ORI) Design by: G. Arara 9th WIOMSA Scientific Symposium ii TABLE OF CONTENTS SPONSORS ....................................................................................................................................ii OUTLINE OF THE SYMPOSIUM PROGRAMME ..................................................................... 2 MEMBERS OF THE SYMPOSIUM SCIENTIFIC COMMITTEE .............................................. 3 INTRODUCTION .......................................................................................................................... 4 SYMPOSIUM ROOM PLAN ........................................................................................................ 7 SESSION CHAIRS AND RAPPOURTEURS ............................................................................... 8 SCIENTIFIC PROGRAMME ........................................................................................................ 9 POSTERS ..................................................................................................................................... 19 PRE-SYMPOSIUM EVENTS ...................................................................................................... 26 SPECIAL SESSIONS ................................................................................................................... 29 KEYNOTE ABSTRACTS ............................................................................................................ 36 ORAL AND POSTER ABSTRACTS .......................................................................................... 39 9th WIOMSA Scientific Symposium 1 OUTLINE OF NINTH WIOMSA SYMPOSIUM PROGRAMME Monday, 26 October 2015 09:00 Opening Ceremony Venue: Amadiba 10:30 COFFEE/TEA BREAK Amadiba Msikaba 1 Msikaba 2 Msikaba 3 Msikaba 4 11:00 Status of coral reefs Primary productivity Mangroves: Provision Livelihood options Marine biodiversity of ecosystem services focus 12:30 LUNCH 14:00 Coral reefs: Deep-sea fisheries: Mangroves: Status Social dynamics of Marine biodiversity Ecological processes Status and their integrity coastal communities focus 15:30 COFFEE/TEA BREAK 16:00 Anthropogenic and Trophic dynamics Mangroves and seagrass Impacts of pollution Advances in turtle natural pertubations meadows: Ecological research to coral reef ecosystems processes and anthropogenic influences 17:30 END 19:30 Opening Reception Tuesday, 27 October 2015 09:00 Two Keynote presentations Venue: Amadiba 10:30 COFFEE/TEA BREAK Amadiba Msikaba 1 Msikaba 2 Msikaba 3 Msikaba 4 11:00 Estuarine processes Impacts of fisheries Influence of physical Sub-regional Elasmobranchs of the phenomena on multi-disciplinary WIO – Sharks biological processes studies 12:30 LUNCH 14:00 Poster Session 15:30 COFFEE/TEA BREAK 16:00 Poster Session 17:30 END Wednesday, 28 October 2015 09:00 Two Keynote presentations Venue: Amadiba 10:30 COFFEE/TEA BREAK Amadiba Msikaba 1 Msikaba 2 Msikaba 3 Msikaba 4 11:00 Development in coral Vulnerability and Fish reproduction Impacts of Elasmobranchs of the reef monitoring and resilience of social- patterns anthropogenic WIO - Sharks & Rays research ecological systems activities 12:30 LUNCH 14:00 Restoration of Coastal Adaptation strategies Small-scale fisheries – Seaweed: Chemical Effectiveness of MPAs ecosystems species composition composition and farming activities 15:30 COFFEE/TEA BREAK 16:00 Coral reef science: Assessing carbon Impacts and Mariculture Planning for Implications for stocks effectiveness of establishment of MPAs management fishing gears 17:30 END Thursday, 29 October 2015 09:00 Two Keynote presentations Venue: Amadiba 10:30 COFFEE/TEA BREAK Amadiba Msikaba 1 Msikaba 2 Msikaba 3 Msikaba 4 11:00 Coral reef fish Small scale fisheries: Ecological Coastal physical Communicating communities Trends and impacts connectivity processes science 12:30 LUNCH 14:00 Uptake of research Small scale fisheries: Fish assemblages in Modeling of Governance results Trends and impacts shallow habitats physical processes challenges 15:30 COFFEE/TEA BREAK 16:00 Climate Impacts and Fishery resources trade Locally managed Shoreline changes Tools for improved barriers to mitigation areas management of coastal of effects and marine environment 17:30 END Friday, 30 October 2015 Amadiba Msikaba 1 Msikaba 2 Msikaba 3 Msikaba 4 09:00 Special Session Special Session Special Session Special Session Special Session 10:30 COFFEE/TEA BREAK 11:00 Special Session Special Session Special Session Special Session Special Session 12:30 LUNCH 14:00 Special Session Special Session Special Session Special Session Special Session 15:30 COFFEE/TEA BREAK 16:00 Special Session Special Session Special Session Special Session Special Session 17:30 END 18:00 Closing Reception 9th WIOMSA Scientific Symposium 2 MEMBERS OF THE SYMPOSIUM SCIENTIFIC COMMITTEE Atanásio Brito Aviti Mmochi IIP Institute of Marine Sciences, Mozambique University of Dar es Salaam, Tanzania Blandina Lugendo Boaz Kaunda-Arara Department of Aquatic Sciences and Fisheries, University of Eldoret University of Dar es Salaam, Tanzania Kenya Brent Newman Chantal Conand Council for Scientific and Industrial Research University of Reunion South Africa Reunion David Glassom Gavin Gouws University of KwaZulu-Natal South Africa Institute of Aquatic Biodiversity (SAIAB) South Africa South Africa Jared Bosire Jerome Bourjea WWF-Kenya IFREMER Kenya Reunion Johan Groeveveld John Machiwa Oceanographic Research Institute (ORI) Department of Aquatic Sciences and Fisheries, South Africa University of Dar es Salaam, Tanzania Jose Paula Josh Cinner University of Lisbon James Cook University Portugal Australia Judy Mann Juliet Hermes Oceanographic Research Institute (ORI) South African Environmental Observation Network South Africa (SAEON) South Africa Louis Celliers Council for Scientific and Industrial Research Maria Manez South Africa CSC Germany Sean Fennessy Oceanographic Research Institute (ORI) Sergio Rosendo South Africa University of East Anglia UK William Froneman Nelson Mandela Metropolitan University Ursula Scharler South Africa University of KwaZulu-Natal South Africa Washington Ochola Africa Lead Kenya MEMBERS OF THE LOCAL ORGANIZING COMMITTEE Angus Macdonald (Chairperson) Louis Celliers (Co-Chair) University of KwaZulu-Natal Council for Scientific and Industrial Research Sean Fennessy Bernadine Everett Oceanographic Research Institute Oceanographic Research Institute Jennifer Olbers Matt Dicken Ezemvelo KwaZulu-Natal Wildlife KwaZulu-Natal Sharks Board Kristina Naidoo Tarryn Newman KwaZulu-Natal Sharks Board Council for Scientific and Industrial Research Gloria Andrews Council for Scientific and Industrial Research MEMBERS OF THE LOCAL ORGANIZING COMMITTEE IN ZANZIBAR Julius Francis Hamad Hassan Tim Andrew Thabit Ame Lilian Omolo Mondi Muhando Innocent Wanyonyi 9th WIOMSA Scientific Symposium 3 INTRODUCTION The Western Indian Ocean Marine Science Association (WIOMSA), University of KwaZulu-Natal, Council for Scien- tific and Industrial Research (CSIR) and KwaZulu-Natal Sharks Board wish a warm welcome to all delegates to the 9th WIOMSA Scientific Symposium. We hope that your stay at the Eastern Cape during the symposium will be fruitful and enjoyable. This book of abstract contains general information as well as guidance for your stay in the Eastern Cape and to enhance your better participation during the symposium. The booklet contains a detailed symposium programme, abstracts of all the presentations and posters, and an index of authors and their addresses. Plenary sessions are scheduled for Monday to Thursday, preceded by key note presentations. Five parallel sessions will be held during these days. On the afternoon of Tuesday 27th a poster session will be held from 14:00 to 17:30h. Delegates should note that the symposium will start at 09:00h each morning of the five days of the symposium, health breaks will be held at 10:30 and at 15:30, while lunch will be served from 12:30 to 13:25, all served at the symposium venue. GENERAL INFORMATION EASTERN CAPE - AN ORIENTATION The Wild Coast is the northernmost stretch of the Eastern Cape and the beginning of the recently proclaimed Pondoland Marine Protected area. It is a warm temperate coast with numerous estuaries, river mouths, rocky shores and sandy beaches. It is the site of the beginning of the yearly Sardine Run on South Africa’s East Coast and harbours a wealth of marine biodiversity. It has protected areas and large portions which serve local communities’ subsistence needs. It has been spared the relentless development that most of South Africa’s coastline has been subjected to and as such serves as a reminder of the beauty that natural environments offer. As the venue for WIOMSA’s 9th Scientific Symposium we hope that you are able to take a moment during your visit to enjoy the natural beauty it has to offer. SYMPOSIUM VENUE WIOMSA’s 9th scientific symposium will be held at Wild Coast Sun Resort. The hotel is located within the borders of the Eastern Cape and only a two hour scenic drive along the South Coast from Durban’s King Shaka International Airport