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  • 1
    Online Resource
    Online Resource
    Table_9.docx
    Frontiers Media SA ; 2022
    In:  Frontiers in Marine Science Vol. 9 ( 2022-12-23)
    Details
    In: Frontiers in Marine Science, Frontiers Media SA, Vol. 9 ( 2022-12-23)
    Abstract: The need to move toward marine ecosystem-based management is globally recognized. Few countries effectively account for multiple interacting pressures in their marine assessments, planning and management. Many socio-economic sectors currently operate in South African waters and in most cases, their associated pressures are managed on a sector-by-sector basis and interacting pressures are seldom accounted for in assessments or decision-making. For ecosystem-based management to be effective, a science-based approach to prioritize sectors and pressures needing most urgent action, and to identify affected ecological components is needed. Integrated Ecosystem Assessment (IEA) has hence been put forward as a tool that can organize relevant information and provide context for cross-sectoral management decisions. Consisting of five main stages that form an iterative cycle, the first IEA stage involves scoping of top management priorities in a given area and can be done by way of risk assessment. Through the ODEMM (Options for Delivering Ecosystem-based Marine Management) approach, linkage chains (interactions) among sectors, pressures and affected ecological components for the entirety of the South African marine territory were identified. Subsequently, impact risk scores of each linkage chain were calculated based on the exposure and severity of impacts faced by ecological components from pressures that are associated with each sector. Fishing was the sector with the greatest connectivity (11.65% proportional connectance) in the framework and ranked highest in terms of impact risk (summed), followed by Shipping and Coastal infrastructure . Pressures with the most serious impacts on ecological components, as identified through summed impact risk scores, included Bycatch, Species extraction , and Incidental loss and the ecological components most affected were those primarily associated with Fishing and its associated pressures. These findings align with those of the recent South African National Biodiversity Assessment and corroborate views of local stakeholders. This study also identified key local knowledge gaps, including impacts of underwater noise, invasive species, and climate change, that must be better understood to improve assessment accuracy and guide management prioritization of pressures exerted by most impactful sectors.
    Type of Medium: Online Resource
    ISSN: 2296-7745
    URL: Article
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    DOI: 10.3389/fmars.2022.975328
    DOI: 10.3389/fmars.2022.975328.s001
    DOI: 10.3389/fmars.2022.975328.s002
    DOI: 10.3389/fmars.2022.975328.s003
    DOI: 10.3389/fmars.2022.975328.s004
    DOI: 10.3389/fmars.2022.975328.s005
    DOI: 10.3389/fmars.2022.975328.s006
    DOI: 10.3389/fmars.2022.975328.s007
    DOI: 10.3389/fmars.2022.975328.s008
    DOI: 10.3389/fmars.2022.975328.s009
    DOI: 10.3389/fmars.2022.975328.s010
    Language: Unknown
    Publisher: Frontiers Media SA
    Publication Date: 2022
    detail.hit.zdb_id: 2757748-X
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    Online Resource
  • 2
    Online Resource
    Online Resource
    DataSheet_1.docx
    Frontiers Media SA ; 2022
    In:  Frontiers in Marine Science Vol. 9 ( 2022-6-30)
    Details
    In: Frontiers in Marine Science, Frontiers Media SA, Vol. 9 ( 2022-6-30)
    Abstract: Despite the increasing number of tools and indicators to measure biodiversity status and trends, many developing countries struggle to initiate and advance coastal and marine assessments needed to monitor and track national and international progress in biodiversity targets. We identified five key challenges that hinder progress in this context, based on a national marine assessment workshop held in South Africa, and developed recommendations and tangible actions to address these challenges drawing from multiple national assessments, regional initiatives, and global collaborations over the last 15 years. Challenges include a poor understanding of methods, limited capacity and funding for assessments, a lack of systematic approaches to biodiversity assessment and indicator development, and scattered efforts that often fail to link science to policy. Key actions could enable the development of a coordinated framework to feed into policy and decision-making at multiple scales. We provide South African examples to highlight a developing country’s progress toward marine biodiversity assessment and provide a roadmap to integrated monitoring, assessment, and reporting based on positive outcomes. Recommendations to address challenges include building collective understanding of assessment tools and methods, prioritizing pressures urgently needing mitigation measures, using relevant indicators to support reporting at multiple scales, applying coordinated approaches to identify gaps and opportunities, codeveloping coordinated approaches with direct policy links, and leveraging resources and technical capacity for iterative improvement. This roadmap can guide developing and developed countries and support global best practices to collaboratively advance marine and coastal ecosystem monitoring and assessment at multiple scales for meeting many objectives.
    Type of Medium: Online Resource
    ISSN: 2296-7745
    URL: Article
    URL: Article
    DOI: 10.3389/fmars.2022.886373
    DOI: 10.3389/fmars.2022.886373.s001
    Language: Unknown
    Publisher: Frontiers Media SA
    Publication Date: 2022
    detail.hit.zdb_id: 2757748-X
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    Online Resource
  • 3
    Online Resource
    Online Resource
    Data_Sheet_1.pdf
    Frontiers Media SA ; 2020
    In:  Frontiers in Marine Science Vol. 7 ( 2020-7-31)
    Details
    In: Frontiers in Marine Science, Frontiers Media SA, Vol. 7 ( 2020-7-31)
    Type of Medium: Online Resource
    ISSN: 2296-7745
    URL: Article
    URL: Article
    DOI: 10.3389/fmars.2020.00540
    DOI: 10.3389/fmars.2020.00540.s001
    Language: Unknown
    Publisher: Frontiers Media SA
    Publication Date: 2020
    detail.hit.zdb_id: 2757748-X
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  • 4
    Online Resource
    Online Resource
    DataSheet_1.pdf
    Frontiers Media SA ; 2022
    In:  Frontiers in Marine Science Vol. 9 ( 2022-11-2)
    Details
    In: Frontiers in Marine Science, Frontiers Media SA, Vol. 9 ( 2022-11-2)
    Abstract: Climate and fisheries interact, often synergistically, and may challenge marine ecosystem functioning and, ultimately, seafood provision and human wellbeing that depend on them. Holistic and integrative approaches aiming at evaluating the spatial overlap between these major stressors are crucial for identifying marine regions and key fish species that require conservation priority to prevent possible future collapses. Based on highly resolved information on environmental conditions and fishing pressure from the Southern Benguela and the Agulhas Bank ecosystems off South Africa, we identified the main areas where small pelagic fish species (European anchovy Engraulis encrasicolus , Pacific sardine Sardinops sagax , and West Coast round herring Etrumeus whiteheadi ) have been highly impacted in terms of unfavourable environmental conditions and fishing pressure over the period 1993-2018. We termed these areas cumulative “hotspots” of climate change and fishing impact. We also identified fishing grounds where environmental conditions are now more favourable for these pelagic fish species, terming these “bright spots” of climate change. Environmental conditions and fishing intensity show contrasting patterns between the Southern Benguela and the Agulhas Bank ecosystems, with the Southern Benguela region accumulating most of the cumulative hotspots and showing the most negative trends in CPUE (a proxy for local fish abundance). Contrastingly, bright spots, identified on the south coast but also south of Cape Town, showed more positive trends in CPUE, suggesting that they may support sustainable growth of the small pelagic fishery in the medium term. Focussing future fishing effort on these bright spots may serve to alleviate pressure on the doubly and highly impacted cumulative hotspots from the western side of the southernmost tip of Africa.
    Type of Medium: Online Resource
    ISSN: 2296-7745
    URL: Article
    URL: Article
    DOI: 10.3389/fmars.2022.1031784
    DOI: 10.3389/fmars.2022.1031784.s001
    Language: Unknown
    Publisher: Frontiers Media SA
    Publication Date: 2022
    detail.hit.zdb_id: 2757748-X
    Location Call Number Limitation Availability
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  • 5
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    Global Perspectives on Observing Ocean Boundary Current Systems
    Frontiers Media SA ; 2019
    In:  Frontiers in Marine Science Vol. 6 ( 2019-8-8)
    Details
    In: Frontiers in Marine Science, Frontiers Media SA, Vol. 6 ( 2019-8-8)
    Type of Medium: Online Resource
    ISSN: 2296-7745
    URL: Article
    DOI: 10.3389/fmars.2019.00423
    Language: Unknown
    Publisher: Frontiers Media SA
    Publication Date: 2019
    detail.hit.zdb_id: 2757748-X
    Location Call Number Limitation Availability
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