Challenges in Estuarine and Coastal Science

Estuarine and coastal waters are acknowledged centres for anthropogenic impacts. Superimposed on the complex natural interactions between land, rivers and sea are the myriad consequences of human activity – a spectrum ranging from locally polluting effluents to some of the severest consequences of global climate change. For practitioners, academics and students in the field of coastal science and policy, this book examines and exemplifies current and future challenges: from upper estuaries to open coasts and adjacent seas; from tropical to temperate latitudes; from Europe to Australia. This authoritative volume marks the 50th anniversary of the Estuarine and Coastal Sciences Association, and contains a prologue by founding member Professor Richard Barnes and a short history of the Association. Individual chapters then address coastal erosion and deposition; open shores to estuaries and deltas; marine plastics; coastal squeeze and habitat loss; tidal freshwaters – saline incursion and estuarine squeeze; restoration management using remote data collection; carbon storage; species distribution and non-natives; shorebirds; Modelling environmental change; physical processes such as sediments and modelling; sea level rise and estuarine tidal dynamics; estuaries as fish nurseries; policy versus reality in coastal conservation; developments in Estuarine, coastal and marine management.

Integrated Marine Management in the United Kingdom Overseas Territories

Like many small island communities, the United Kingdom Overseas Territories (UKOTs) are directly dependent on their marine resources for a range of ecosystem services, such as income generation, subsistence, leisure, recreation and wellbeing. Healthy marine ecosystems also play a broader role in climate regulation, coastal resilience and habitat provision. With Blue Belt Programme assistance, the UKOTs are developing enhanced protection and sustainable management strategies for their marine environments, using an Integrated Marine Management (IMM) approach. This coordinates cross-sectoral planning and management to carefully balance marine conservation and sustainable use of resources in order to minimize socio-cultural and economic impacts to the local community. We describe the IMM approach taken in two UKOT case studies. In Ascension Island, a conservation planning and resource management process was initiated with an objective to protect at least 50% of Ascension’s waters from commercial fishing, resulting in the designation of one of the largest Marine Protected Areas (MPAs) in the Southern Atlantic. In St Helena, a new licensing framework for marine developments was developed within an existing sustainable use MPA. From these two approaches, we highlight aspects of the process, lessons learned and recommendations that may be useful for other small islands planning to implement IMM, particularly regarding the importance of effective stakeholder engagement, coordination across different governance scales, and long-term financial resources.

Onset and Decline Rates of Marine Heatwaves: Global Trends, Seasonal Forecasts and Marine Management

Changing ocean conditions due to anthropogenic climate change, particularly the increasing severity and frequency of extreme events, are a growing concern for a range of marine sectors. Here we explore the global trends in marine heatwaves (MHWs), specifically onset and decline rates, two metrics which describe how quickly a MHW will emerge or disappear from a location. These rates determine the reaction window—the start of a MHW event to peak MHW temperatures—and the coping window—time from peak temperatures to the end of an event—two important time periods relevant to a marine decision-maker. We show that MHW onset and decline rates are fastest in dynamic ocean regions and that overall, the global trend in onset rate is greater than the global trend in decline rate. We map ocean regions where these rates are changing together with forecast skill from a seasonal dynamical model (ACCESS-S). This analysis highlights areas where the length of the preparation window for impending MHWs is increased by using forecasts, and areas where marine decision-makers should be prepared for rapid responses based on realtime observations as MHWs evolve. In regions such as south Africa and Kerguelen, northwest Atlantic, northwest Pacific, southwest South Atlantic and off Australian east coast where rapid median onset and decline rates are observed, there is also a positive trend in onset and decline rates i.e., MHWs are developing and declining more rapidly. This will be a concern for many decision-makers operating in these regions.

Indo-Fijian Fishing Communities: Relationships with Taukei in Coastal Fisheries

<p>In the Pacific, customary marine tenure-ship and management has been practised for centuries. Community based marine resource management (CBMRM) initiatives have seen governments, local communities and non-government organisations adopt various management tools to improve coastal fisheries. Despite these efforts, there are growing concerns over the decline of fisheries resources and the subsequent social-ecological problems that affect coastal communities. In the last three decades, Fiji, has implemented various forms of CBMRM initiatives with varying social-ecological successes. Marine management and conservation efforts across the 410 qoliqoli areas (fishing grounds) are predominantly driven by Indigenous Taukei communities and non-government conservation organisations (NGOs). Over the past two years local communities, NGOs, and government have led and supported new management efforts to improve fisheries sustainability in the country. Non-Indigenous resource users are limited by social and political policies to access and participate in coastal resource management. Fijians of Indian descent (Indo-Fijians) represent the second-largest ethnic group in Fiji and are engaged in both subsistence and artisanal fisheries. Their involvement and participation within the broader socio- economic and socio-political aspects of coastal fisheries is considerable, however, remains hidden. Using a qualitative approach, this study explores the issues, challenges, and opportunities that Indo-Fijian communities experience in the coastal fisheries sector in Ba Province, Fiji. Findings from the research illustrate the informal yet complex nature of socio-economic and socio-cultural community relationships between customary Taukei qoliqoli owners and Indo-Fijian people. The role of Indo-Fijian women within the coastal fisheries sector is notable. The success of contemporary CBRMN in Fiji is dependent upon a re- imagined, re-adapted, diverse approach. Most importantly, this research provides an opportunity to foster discussion within contemporary community based marine management and conservation efforts currently in place by customary Taukei qoliqoli owners, conservation organisations and the government.</p>

Indo-Fijian Fishing Communities: Relationships with Taukei in Coastal Fisheries

<p>In the Pacific, customary marine tenure-ship and management has been practised for centuries. Community based marine resource management (CBMRM) initiatives have seen governments, local communities and non-government organisations adopt various management tools to improve coastal fisheries. Despite these efforts, there are growing concerns over the decline of fisheries resources and the subsequent social-ecological problems that affect coastal communities. In the last three decades, Fiji, has implemented various forms of CBMRM initiatives with varying social-ecological successes. Marine management and conservation efforts across the 410 qoliqoli areas (fishing grounds) are predominantly driven by Indigenous Taukei communities and non-government conservation organisations (NGOs). Over the past two years local communities, NGOs, and government have led and supported new management efforts to improve fisheries sustainability in the country. Non-Indigenous resource users are limited by social and political policies to access and participate in coastal resource management. Fijians of Indian descent (Indo-Fijians) represent the second-largest ethnic group in Fiji and are engaged in both subsistence and artisanal fisheries. Their involvement and participation within the broader socio- economic and socio-political aspects of coastal fisheries is considerable, however, remains hidden. Using a qualitative approach, this study explores the issues, challenges, and opportunities that Indo-Fijian communities experience in the coastal fisheries sector in Ba Province, Fiji. Findings from the research illustrate the informal yet complex nature of socio-economic and socio-cultural community relationships between customary Taukei qoliqoli owners and Indo-Fijian people. The role of Indo-Fijian women within the coastal fisheries sector is notable. The success of contemporary CBRMN in Fiji is dependent upon a re- imagined, re-adapted, diverse approach. Most importantly, this research provides an opportunity to foster discussion within contemporary community based marine management and conservation efforts currently in place by customary Taukei qoliqoli owners, conservation organisations and the government.</p>

Discerning the Management-Relevant Ecology and Distribution of Sea Pens (Cnidaria: Pennatulacea) in Norway and Beyond

Sea pens are considered to be of conservation relevance according to multiple international legislations and agreements. Consequently, any information about their ecology and distribution should be of use to management decision makers. This study aims to provide such information about six taxa of sea pen in Norwegian waters [Funiculina quadrangularis (Pallas, 1766), Halipteris spp., Kophobelemnon stelliferum (Müller, 1776), Pennatulidae spp., Umbellula spp., and Virgulariidae spp.]. Data exploration techniques and ensembled species distribution modelling (SDM) are applied to video observations obtained by the MAREANO project between 2006 and 2020. Norway-based ecological profiles and predicted distributions are provided and discussed. External validations and uncertainty metrics highlight model weaknesses (overfitting, limited training/external observations) and consistencies relevant to marine management. Comparison to international literature further identifies globally relevant findings: (a) disparities in the environmental profile of F. quadrangularis suggest differing “realised niches” in different locations, potentially highlighting this taxon as particularly vulnerable to impact, (b) none of the six sea pen taxa were found to consistently co-occur, instead partially overlapping environmental profiles suggests that grouping taxa as “sea pens and burrowing megafauna” should be done with caution post-analyses only, (c) higher taxonomic level groupings, while sometimes necessary due to identification issues, result in poorer quality predictive models and may mask the occurrence of rarer species. Community-based groupings are therefore preferable due to confirmed shared ecological niches while greater value should be placed on accurate species ID to support management efforts.

Sailing for Sustainability: The Potential of Sail Technology as an Adaptation Tool for Oceania. A Voyage of Inquiry and Interrogation through the Lens of a Fijian Case Study

<p>This thesis records an action research-based inquiry into the potential of sail technology as an adaptation intervention for sea-transport that would assist Oceanic communities (at local and national levels) (re)claim resilience in the face of growing threats from climate change and extreme fossil-fuel dependency. The issue is explored at micro, meso, and macro geographic levels and temporally across past heritage, the current situation and looking to a future horizon. A case study approach is employed, where possible focussed through a Fijian lens. The thesis finds that while there are grounds for expanded research into and priority of sustainable sea-transport, this central issue facing most Oceania communities remains invisible within the policy space at all levels and has been hitherto ignored by regional and development agencies. Barriers are identified as being as much perceptual as actual, and lack of technology is not the primary issue but rather more deep-seated factors including ownership, operation, and management spread across multiple ‘well-beings’ including culture and socio-economic concerns. There are multiple lessons to learn from interrogation of the past. The process of inquiry was initiated within existing talanoa of key partner communities in Fiji and has, in turn, proved catalytic in initiating both fresh research into Fijian seafaring heritage – particularly that concerning the Waqa Tabu or Drua and its related culture in Fiji and central Oceania - and a growing network of interest in an agenda of sustainable sea-transport for this region. The former proved elemental to a programme of art and performance undertaken by the Oceania Centre for Arts, Culture and Pacific Studies leading up to the Festival of Pacific Arts in the Solomons 2012 and both strands were brought together in the region’s first international ‘Sustainable Sea-Transport Talanoa’ hosted by the University of the South Pacific in November 2012. It now appears there is sufficient critical mass generated to ensure a sustained programme of both action and research will ensue and it is suggested critical learning of collaboration and partnership as well as measures for assessing the sustainability of such a programme can be gleaned from other Oceanic Participatory Learning and Action experiences, in particular the Fiji Local Marine Management Area programme.</p>

Sailing for Sustainability: The Potential of Sail Technology as an Adaptation Tool for Oceania. A Voyage of Inquiry and Interrogation through the Lens of a Fijian Case Study

<p>This thesis records an action research-based inquiry into the potential of sail technology as an adaptation intervention for sea-transport that would assist Oceanic communities (at local and national levels) (re)claim resilience in the face of growing threats from climate change and extreme fossil-fuel dependency. The issue is explored at micro, meso, and macro geographic levels and temporally across past heritage, the current situation and looking to a future horizon. A case study approach is employed, where possible focussed through a Fijian lens. The thesis finds that while there are grounds for expanded research into and priority of sustainable sea-transport, this central issue facing most Oceania communities remains invisible within the policy space at all levels and has been hitherto ignored by regional and development agencies. Barriers are identified as being as much perceptual as actual, and lack of technology is not the primary issue but rather more deep-seated factors including ownership, operation, and management spread across multiple ‘well-beings’ including culture and socio-economic concerns. There are multiple lessons to learn from interrogation of the past. The process of inquiry was initiated within existing talanoa of key partner communities in Fiji and has, in turn, proved catalytic in initiating both fresh research into Fijian seafaring heritage – particularly that concerning the Waqa Tabu or Drua and its related culture in Fiji and central Oceania - and a growing network of interest in an agenda of sustainable sea-transport for this region. The former proved elemental to a programme of art and performance undertaken by the Oceania Centre for Arts, Culture and Pacific Studies leading up to the Festival of Pacific Arts in the Solomons 2012 and both strands were brought together in the region’s first international ‘Sustainable Sea-Transport Talanoa’ hosted by the University of the South Pacific in November 2012. It now appears there is sufficient critical mass generated to ensure a sustained programme of both action and research will ensue and it is suggested critical learning of collaboration and partnership as well as measures for assessing the sustainability of such a programme can be gleaned from other Oceanic Participatory Learning and Action experiences, in particular the Fiji Local Marine Management Area programme.</p>

Stakeholder Engagement Strategies for Designating New Zealand Marine Reserves: a Case Study of the Designation of the Auckland Islands (Motu Maha) Marine Reserve and Marine Reserves Designated Under the Fiordland (Te Moana o Atawhenua) Marine Management Act 2005

<p>In recent years, marine reserves (areas of the sea where no fishing is allowed) have enjoyed increased popularity with scientists and agencies charged with management of ocean and coastal resources. Much scientific literature documents the ecological and biological rationale for marine reserves, but scholars note the most important consideration for successful establishment reserves is adequate involvement of the relevant stakeholders in their designation. Current guidance for proponents of marine reserves suggests that to be successful, reserves should be designated using "bottom-up" processes favouring cooperative management by resource-dependent stakeholders, as opposed to "top-down" approaches led by management agencies and international conservation organizations. However, there is a dearth of guidance as to how to identify relevant stakeholders, and what constitutes adequate engagement. New Zealand provides a unique opportunity for study of the two different approaches, with examples on both ends of the spectrum. The recent establishment of the Auckland Islands (Motu Maha) Marine Reserve under the designation framework provided by the Marine Reserves Act 1971 demonstrates a "top-down" approach; the designation of eight marine reserves as a component of the Fiordland (Te Moana o Atawhenua) Marine Management Act 2005, legislation that marks the culmination of a lengthy community stakeholder negotiation process, demonstrates a corresponding "bottom-up" design. A comparison of the two approaches elicits issues relevant to managers in considering designation approaches to follow in comparable situations elsewhere. In this thesis, the author identifies and categorizes potential stakeholders by applying a framework modified from World Conservation Union ("IUCN") stakeholder assessment processes adopted for terrestrial reserves and guidance for establishing marine protected areas. The researcher describes the two designation processes using a case study methodology, relying on secondary research materials and primary data from targeted interviews. The analysis considers relative relevance of the groups using a stakeholder model developed in the corporate social responsibility movement of the management field. In closing, the author proposes a heuristic model for managers to use when analysing stakeholder dynamics in future marine reserve designations when considering whether to use a "top-down" or "bottom-up" approach.</p>