flags

The Annual Science Forum 2012

Namibia's Minister of Fisheries and Marine Resources, Bernard Esau, opened the fourth Science Forum of the Benguela Current Commission (BCC) which took place in Windhoek from 15 to 18 October 2012. The Science Forum is an annual event that attracts marine and fisheries scientists from around the world.

The Forum provides an opportunity for scientists from the marine research institutes and universities of Angola, Namibia and South Africa (the three members states of the BCC), to report on their work and, in consultation with their peers, evaluate their progress. It also provides an opportunity for scientists from the region to identify areas of mutual scientific interest and discuss collaboration with their international colleagues.

Professor Hein Rune Skjoldal of the Norwegian Institute of Marine Research (IMR) delivered the keynote address.

ASF 2012 proceedings and presentations

 NAME OF PRESENTER

NAME OF PRESENTATION FILE AVAILABLE FOR DOWNLOAD

MONDAY

Day 1: Session 2

Chair: Antonio da Silva

Hashali Hamukuaya & Nico Willemse Updates on BCC milestones icon Updates on BCC milestones (1.55 MB)
Moses Maurihungirire Science progress report icon Science progress report (4.62 MB)
Ekkehard Klingelhoeffer BCC training and capacity building initiatives in the region -- have its impacts been felt? icon BCC training and capacity building (2.17 MB)
Ben van Zyl An overview of SEAFO and its activities icon An overview of SEAFO (4.39 MB)
Tore Strømme, Marek Lipinkski & Paul Kainge Results of transboundary fish surveys in the BCLME region (2008–2012) icon Results of tranboundary fish surveys (3.6 MB)
Nadine Moroff & Vaino Shigwedha Results of pelagic transboundary surveys between northern Namibia and southern Angola icon Results of transboundary pelagic surveys (1.15 MB)

Day 1: Session 3

Chair: Kim Prochaska

Carola Kirchner Project LMR-SEC-02-12: State of the Stocks in the BCLME region icon State of the Stocks presentation (3.21 MB)
  Project LMR-PEL-09-09: Early life history and stock identity of horse mackerel species icon Early life and stock identity of horse mackerel (927.98 kB)
Stephen Kirkman (on behalf of Dawit Yemane and Janet Coetzee) Project LMR/PEL/09/03-04: Environmental links to pelagic fish lifecycle, abundance and distribution: determining governing factors icon Environmental links to pelagic fish (1.03 MB)
Janet Coetzee et al. Project LMR-PEL-09-07: Acoustic survey of methods and associated errors icon Acoustic survey methods and errors (1.17 MB)

Day 1: Session 4

Chair: Ulitala Hiveluah

Janet Coetzee et al. Project LMR-PEL-09-08: Development of acoustic methodology for zooplankton biomass assessment icon Development of acoustic methodology (3.64 MB)
Sylvia Nsiangango et al. Project LMR-DEM-09-09: Stock definition and interactions between demersal fish off Angola icon Stock definition and interactions of demersal fish (2.78 MB)
Kumbi Kilongo Project LMR-DEM-09-08: Interactions between demersal stocks in Angola Sorry! This file is not available for download. Please contact the authors. 

TUESDAY

Day 2: Session 1

Chair: Tore Strømme

Harald Loeng & Erling Kare Stenevik The NansClim project – experiences from the project icon The NansClim project (2.76 MB)
Pedro Tchipalanga, Quilanda Fidel, Marek Ostowski & Bomba Sangolay Trends in oceanographic regimes at the northern extremity of the Benguela system icon Trends in oceanographic regimes (11.71 MB)
Chris Bartholomae & Anja van der Plas Spatial and temporal visibility of the northern Benguela icon Spatial and temporal visibility of the northern Benguela (5.97 MB)
L. Hutchings, A. Jarre, T. Lamont, C. Illert, E. Hill, M. Crichton & K. Wieland Oxygen depleted water along the west coast of South Africa icon Oxygen depleted water along the west coast of SA (5.86 MB)
Marek Ostrowski, Pedro Tchipalanga, Quilanda Fidel & Bomba Sangolay The seasonal oceanographic and primary productivity regimes in a Kelvin-wave dominated upwelling system at the eastern boundary of the tropical Atlantic icon Seasonal oceanographic and primary productivity regimes (13.07 MB)

Day 2: Session 6

Chair: Fritz Koster

Chris Bartholomae & Anja van der Plas Correlations between hake biomass distribution and in situ temperature, salinity and dissolved oxygen at bottom, mid-water and surface layers over the Namibian shelf icon Correlations between hake distribution (2.34 MB)
Hans Verheye, Jenny Huggett, Anja Kreiner, Rudi Cloete & Todd O'Brien Long-term variability of zooplankton in the Benguela Current system: a comparison between the northern and southern sub-systems icon Long term variability of zooplankton (6.52 MB)
Anja Kreiner, Dawit Yemane & Erling Kåre Stenevik Spawning habits of Cape horse mackerel (Trachurus capensis) in the nothern Benguela upwelling region icon Spawning habits of Cape horse mackerel (1.5 MB)
Astrid Jarre & L.K. Blamey Regime shift detection in the southern Benguela shelf and inshore region icon Regime shift detection (4.4 MB) 
Astrid Jarre Long-term ecosystem scale changes in the southern Benguela marine social-ecological system: combining natural and human drivers icon Long term ecosystem scale changes (6.52 MB) 

Day 2: Session 7

Chair: Moses Maurihungirire

Beau Tjizoo & Bjørn Erik Axelsen Horse mackerel and jellyfish co-occurrence in the northern Benguela environment icon Horse mackerel and jellyfish (3 MB)
Bjørn Erik Axelsen Review of the sampling methodology of the demersal trawl surveys in the Benguela Current in the period 1985 to 2010 – implications of modifications in gear specifications icon Review of the sampling methodology of the demersal trawl surveys (7.51 MB) 
Stephen Kirkman, Dawit Yemane, John Kathena, Samuel K. Mafwila, Sylvia Nsiangango, Toufiek Samaai, Bjørn Erik Axelsen & Larvika Singh Existence, persistence and interference of demersal biodiversity hotspots in the BCLME

icon Existence, persistence and interference of demersal hotspots (3.2 MB) 

(Some of the logos and non-essential illustrations have been removed from this file to facilitate its download.)

Dawit Yemane, Toufiek Samaai, John Kathena, Sylvia Nsiangango, Larvika Singh, Bjørn Erik Axelsen & Stephen Kirkman Identifying and characterising temporal shift in the demersal fish communities of the BCLME icon Identifying and characterizing temporal shift (2.17 MB)

Day 2: Session 8

Chair: Marek Ostrowski 

Johannes Iitembu, Dawit Yemane, Stephen Kirkman, Bjørn Erik Axelsen, Toufiek Samaai, Paulus Kainge, John Kathena & Kumbi Kilongo Investigation of common temporal trends in the major demersal fish communities of the BCLME (1985 to 2010) Sorry! This file is not available for download. Please contact the authors.
Dawit Yemane, John Kathena, Sylvia Nsiangango, Bjørn Erik Axelsen, Toufiek Samaai & Stephen Kirkman Assessing changes in the distribution and range size of demersal fish populations in the BCLME region

icon Assessing changes in distribution and range size of demersal fish (1020.46 kB)

(Some of the logos and non-essential illustrations have been removed from this file to facilitate its download.)

Mafwila, Kathena, Yemane, Samaai, Singh, Axelsen, Nsiangango, Cloete, Kainge & Johnsen Spatio-temporal trends in diversity of the demersal fish community in the BCLME: a comparative approach icon Spatio-temporal trend in diversityof the demersal fish community (937.74 kB) 
Kainge, Yemane, Estevao, Nsiangango, Iitembu, Axelsen, Kathena, Singh, Mafwila & Kilongo Identification of potential indicator (demersal) species of climate related variability in the BCLME region – a new approach icon Identification of potential indicator (demersal) species (7.86 MB) 
Bjordal / Norad NansClim: picking the scientific fruits from the Nansen Programme icon Nansclim: picking the scientific fruits (3.01 MB) 

WEDNESDAY

Day 3: Session 9

Chair: Nkosi Luyeye

Ursula Witbooi Two decades of marine monitoring at NAMDEB – inside a dynamic system icon Two decades of marine monitoring at NAMDEB (2.78 MB)
Phumla Ngesi  Environmental issues and related controls in respect of exploration and production of oil and gas: a South African perspective icon Environmental issues and related controls (5.56 MB)
Aphary Muyongo & Gabi Schneider Deep sea mining and marine environment at the 18th session of the International Seabed Authority  icon UNCLOS environmental endeavours (2.8 MB)
Peter Tarr & Gabi Schneider Strategic Environmental Assessment for the BCLME region icon Strategic Environmental Assessment for the BCLME (9.17 MB)
Jeremy Midgely Marine phosphate mining in a regional context icon Marine phosphate mining (3.73 MB) 

Day 3: Session 10

Chair: Andre Share

Matti Amukwa Fishing industry's view on the need for good ecosystems regarding marine mines icon Fishing industrys view regarding marine mines (4.67 MB) 
Merle Sowman & Serge Raemaekers Integrating the human dimension of an ecosystem approach to fisheries into fisheries management in the BCC region. Baseline report for South Africa icon Human dimensions of EAF SOUTH AFRICA (5.58 MB) 
Dave Russel Integrating the human dimension of an ecosystem approach to fisheries into fisheries management in the BCC region. Baseline report for Namibia icon Human dimensions of EAF NAMIBIA (3.66 MB) 
Nkosi Luyeye Integrating the human dimension of an ecosystem approach to fisheries into fisheries management in the BCC region. Baseline report for Angola icon Human dimensions of EAF ANGOLA (137.15 kB) 
Barbara Patterson Recommendations towards the collection and analysis of information on the human dimensions of fisheries, including the development of a field monitoring programme icon Recommendations on the human dimensions of EAF (724.67 kB) 
Kelsey Draper Ecofish project - work package 3: Namibianisation and EAF: knowledge, ethos and policy in the hake fishery icon Ecofish project WP3 (1.02 MB) 

Day 3: Session 11

Chair: Kumbi Kilongo

Fritz Koster et al. Ecofish project - WP 1: introducing state-space stock assessment (SAM) in the BCC region icon Ecofish project WP1 (2.14 MB) 
Astrid Jarre Ecofish project - WP 2: catchability, trophodynamics, genetics for improved stock assessment models icon Ecofish WP2 (2.12 MB)
Barbara Paterson Ecofish WP 3: integrating stakeholder knowledge into data collection and analysis icon Ecofish project WP3 integrating stakeholder knowledge (4.92 MB)
Hendrik Degel Ecofish project WP1: sharing data icon Ecofish project WP1 sharing data (1 MB)

Day 3: Session 12

Chair: Gabi Schneider

Stephen Kirkman Project BEH-09-01: spatial biodiversity assessment and spatial management including MPAs icon Project BEH-09-01 Spatial biodiversity assessment (5.05 MB) 
Hans Verheye Project OCM-09-07: development of a continuous plankton recorder (CPR) sister survey in the BCLME icon Project OCM-09-07 Development of a CPR recorder (2.66 MB)
John Cotter The BCLME hake surveys data analysis icon The BCLME hake surveys data analysis (4.06 MB)

THURSDAY

Day 4: Session 13

Chair: Filomena vaz Velho

Tshikana Rasehlome Safe lead: safer and innovative alternative to pelagic longline fishery icon Safer and innovative alternative to pelagic longline fishery (2.67 MB) 
Chibo Chikwililwa The first detection of yessotoxin in the Benguela upwelling system from Gonyaulax spinifera icon The first detection of yessotoxin in the Benguela (2.58 MB) 
Bettina Martin Zooplankton investigations in the GENUS project: brief results and future topics Sorry! This file is not available for download. Please contact the author. 
Volker Mohrholz Impact of physical processes on the Benguela ecosystem Sorry! This file is not available for download. Please contact the author. 
Nico Lahajnar Nutrient distribution and flux rates in the northern Benguela upwelling system icon Nutrient distribution and flux rates in the northern Benguela (3.49 MB) 

Day 4: Session 14

Chair: Kwame Koranteng

Richard Horaeb Zooplankton distribution in the Namibian upwelling region: a comparison of net catches with ADCP measures icon Zooplankton distribution in the Namibian upwelling system (2.57 MB)
Simon Nkumbwa The distribution of zooplankton along the transect off Walvis Bay (23°S) in relation to physical parameters icon The distribution of zooplankton off Walvis Bay (2.84 MB)
Erica Mokanya Spatial distribution of ichthyoplankton in the Benguela region icon Spatial distribution of ichthyoplankton in the Benguela (2.85 MB)
Friedrich Buchholz News on krill from the northern Benguela Sorry! This file is not available for download. Please contact the author.
Carola Kirchner A paradigm shift: managing the fisheries icon A paradigm shift: managing the fisheries (1.84 MB)
Anja van der Blas, et al. Project OCM-09-05: coastal monitoring network icon Project OCM-09-05: coastal monitoring network (3.17 MB)

Day 4: Session 15

Chair: Kahijoro Kahuure

Immanuel Mulunga An overview of Namibian oil and gas exploration and production industry Sorry! This file is not available for download. Please contact the authors. 
Anja Kreiner The African Marine Atlas Sorry! This file is not available for download. Please contact the authors. 
J Paterson Mitigation measures in the Namibian hake fishery icon Seabird bycatch mitigation measures in the Namibian hake fishery (2.19 MB) 
Werner Ekau GENUS II: working programme for the next three years and the opportunity for extension to the south to be discussed as a Year of Science activity icon GENUS II working programme (3.71 MB)


  

Managing Dynamic Ecosystems

Marine ecosystems have shown dramatic changes over the past four decades and one of the biggest challenges facing the scientific community is not only to detect change, but also to explain it and determine how much of it is as a result of human activity rather than natural processes. This was one of the key messages delivered at the BCC Annual Science Forum by keynote speaker, Hein Rune Skjoldal, who presented a wide-ranging description of the ecosystem approach, drawing on his own experience with the assessment and management of Norwegian ecosystems.

Professor Skjoldal works for Norway's Institute of Marine Research (IMR), which has supported scientific investigations into the marine and coastal environment of the Benguela region for decades. He is also an associate professor at the University of Bergen's Institute of Fisheries and Marine Biology. Professor Skjoldal acknowledged that after 30 years scientists and resource managers are still struggling to properly define the ecosystem approach. He gave some reasons as to why this is so, including the fact that ecosystems are very variable in size and scale and are not always easy to comprehend. Moreover, it can be difficult to move from an understanding of the general principles of the ecosystem approach, to actually implementing it.

Having outlined the framework of an ecosystem approach and talked about the importance of setting ecological objectives, Professor Skjoldal provided a fascinating insight into some of the changes that have taken place in Norwegian marine ecosystems over the past 30 years. One of the most compelling examples is provided by capelin, Mallotusvillosus,a forage fish that plays a key role in marine ecosystems. Professor Skjoldal described how the biomass of capelin had "roller coastered" over the past 30 years, showing how stocks had collapsed three times, most dramatically in the 1980s when stock collapse caused severe seabird and marine mammal mortalities. He emphasised that the challenge for fisheries managers is to detect changes and not only explain them, but also determine the degree to which fishing drives the change.

An added challenge is to be able to answer these questions in the present, rather than long after the changes have been detected. Professor Skjoldal stated that integrated assessments are important for the implementation of an ecosystem approach; such assessment should take into account the status of species and habitats, climate variability, ecological interactions and human impacts and pressures. He concluded by saying there is no "quick fix" solution for implementing an ecosystem approach and sound science must underpin the method.

Status of the Benguela Current Commission

A number of policies, partnerships and initiatives have been put in place by the Benguela Current Commission (BCC)over the past year and the organisation has taken important strides towards establishing itself as a independent inter-governmental institution.

Some of the BCC's achievements in the fields of institution building, LME management, training and partnership building, were highlighted at the annual Science Forum of the BCC by Nico Willemse, senior project manager of the BCLME SAP Implementation project.

According to Nico, policies on Finance, Procurement and Human Resources have been adopted and a new staff salary grading system has been developed for the BCC Secretariat. A Strategic Plan, Business Plan and Resource Mobilisation and Partnership Strategy are in place, while the finalisation and adoption of a Data and Information Policy represents another important milestone for the BCC.

"The BCC has been registered as a legal entity in Namibia, allowing it to establish a bank account," said Nico, "the countries are paying their annual dues to finance the operations of the Secretariat and the BCC has the administrative and financial management capacity to manage its own financial resources, including donor funds."

Other achievements highlighted by Nico include the completion of an economic evaluation of the ecosystem goods and services in the BCLME; assistance provided to the countries for the implementation of an ecosystem approach to fisheries; and the revision of the State of the Ecosystem Information System, SEIS.
Impressive progress has also been made with forging partnerships and encouraging collaboration with international organisations. The establishment and building of the African LME Caucus, which encourages collaboration with and between African Large Marine Ecosystem project and programmes, has been a highlight of the year. Other valuable partnerships have been forged with theAfrican Union/Nepad, the EAF-Nansen project, a number of European universities and institutions, and NGOs such as WWF.
Nico outlined progress made by the BCC with the management of mining and drilling activities, improvements in the monitoring of environmental variability, the management of pollution and the maintenance of ecosystem health and protection of biodiversity.

On the subject of Training and Capacity Building (TCB), Nico reported that a TCB advisory group is in place and supporting the development of TCB policy, and advanced training has been provided in fish stock assessment, hydro-acoustic surveys, responsible fisheries and fisheries management. Moreover, a number of workshops supported or hosted by the BCC have facilitated the exchange of skills and ideas on the LME approach to ocean governance and ocean policy.

Nico concluded by saying there is strong political support for the work the BCC is doing and impetus to fast-track policy- and management-related matters.