Management Of Marine Areas Research Articles

Small-scale managed marine areas over time: Developments and challenges in a local Fijian reef fishery

This paper investigates the Locally Managed Marine Area (LMMA) approach through looking at developments and challenges of community-based marine resource management over time, with a particular focus on Fiji in the South Pacific region. A diachronic perspective, based on two multi-method empirical studies, is used to exemplify the social complexities of the implementation of this LMMA approach in a specific island setting. This perspective connects local stakeholders' establishment and management of a LMMA covering their entire customary fishing rights area (iqoliqoli) with the national context articulated around the Fiji Locally Managed Marine Area (FLMMA) network, as well as with regional networking and international conservation dynamics. It especially explores the impacts of a small-scale marine closure (so-called tabu area) on the harvesting patterns in a portion of this LMMA, related aspects of formal and informal enforcement, and villagers' views of the health of their reef fishery. This case study reveals a lack of consensus on the current management of this closure as a conditionally-opened no-take area, whose temporary openings (re)produce social tensions, as well as a lack of consensus on the effects of this closure on the reef fishery, which is subject to poaching. The paper highlights that the articulation between conservation and extraction of marine resources, as well as between short-term and longer-term objectives of the community-based marine resource management in place, is a complex sociopolitical process even at the most local level. The discussion also points out that local observations and interpretations of coastal resource dynamics, and of the interplay between fishery and community changes, might be instrumental in addressing the limits of the area-based system of management inherent in the LMMA approach. These insights into both the development process of the LMMA approach and the challenges of its local implementation and maintenance efforts can be useful to consider the adjustments necessary for Fiji's achievement of its national coastal fisheries management strategy and its international ocean governance commitments.

Implementing strategies to overcome social-ecological traps: the role of community brokers and institutional bricolage in a locally managed marine area

Steenbergen, D. J., and C. Warren. 2018. Implementing strategies to overcome social-ecological traps: the role of community brokers and institutional bricolage in a locally managed marine area. Ecology and Society 23(3):10. https://doi.org/10.5751/ES-10256-230310

On the advantages of working together: Social Learning and knowledge integration in the management of marine areas

The interconnectedness of ecosystems and the integration of policy and society are relevant aspects of integrated management grounded in knowledge exchange practices. Such processes may also promote social learning, the joint and collaborative knowledge to tackle environmental problems. Thus, understanding knowledge exchange is an additional strategy to promote and understand social learning. This article analyzed a knowledge exchange process related to the elaboration of a proposal for the spatial delimitation of a marine protected area in Brazil, a developing country. By combining process observation and geographical information system tools, proposed areas and criteria for delimitation elaborated by different groups of stakeholders (non-scientists and scientists), separately and in an integrated discussion, were compared and used to test the hypotheses that integration under a knowledge exchange process can bring substantive changes in the outcomes of a management process, and that knowledge exchange processes can promote social learning. Results showed that the integration of different knowledge led to results that none of the groups reached in separate discussions, such as the identification of new areas, delimitation of an area of influence and new criteria for delimitation. Changes in knowledge, the framing and reframing of the processes, understating system complexity and social context were observed, which indicates that knowledge exchange promoted social learning. Additionally, the criteria used to support the delimitation proposals in the studied area can be applied to other marine protected areas in other contexts, and the methods used to guide the discussion can be adapted to other issues.

The Recovery of a Tropical Marine Mollusk Fishery: A Transdisciplinary Community-Based Approach in Navakavu, Fiji

This paper presents findings from a species-by-species assessment of the collapse and recovery of a tropical mollusk fishery in Navakavu, Fiji. The results are based on field surveys, photo documentation, collection of voucher specimens, participant observation, and testimonies of past and current generations of female and male fishers. The results show the degradation of fisheries resources at almost all trophic levels over the past 40 years due to overfishing, destructive fishing techniques, and environmental degradation, as well as the positive impacts of the establishment of a locally managed marine area (LMMA) and associated marine protected area (MPA), known locally as “Vueti Navakavu.” Since its establishment in 2002, nearly 300 mollusk species, including gastropods, bivalves, and cephalopods, are either being seen for the first time in over 40 years or are clearly increasing in abundance and/or size class. There has been a particularly dramatic increase in the abundance of a wide range of cone shells (Conus spp.), cowries (Cypraea spp.), conches (Strombidae), murexes (Muricidae), auger shells (Terebridae), and turban snails (Turbanidae), as well as octopus, squid, and seahare, all of which are of economic, cultural, and ecological importance. The results show that sustained effective marine conservation can, in general, lead to the recovery of seriously degraded fisheries and, in particular, of tropical mollusk fauna. This assessment highlights the value of synthesizing up-to-date taxonomic and scientific knowledge with the knowledge of older fishers, who have long-term multi-species knowledge of changing fisheries.

Goldspotted spinefoot Siganus punctatus (Siganidae) age-based reproductive life history and fisheries vulnerability.

Between February 2015 and 2016, samples of the Indo-Pacific goldspotted spinefoot Siganus punctatus were taken from local fish markets, feeding sites and nursery grounds on the main island of Pohnpei, Micronesia, to ascertain sexual pattern, reproductive seasonality, age, growth and mortality. Microscopic examinations of gonads identified two seasonal peaks in reproduction: February to May and September to December, with evidence of some spawning activity in most months. Ripe females were observed 4 days on either side of the new moon. Females first matured at c. 180 mm fork length (LF ) and 1 year of age, which coincides with their entry into the fishery. Ninety five per cent of individuals were less than 3 years and the oldest fish were 8 years. To examine the species vulnerability to fishing, a tag-and-recapture study was conducted over 4 months in 2015 in a locally managed marine area and at an unprotected site. Findings suggest high residency and high vulnerability to fishing at shallow-water feeding sites and restricted migration overall. The placement of marine protected areas within critical habitat appears to be an effective conservation strategy for this species, particularly when combined with gear and seasonal market restrictions during vulnerable life-history phases.

Mainstreaming marine biodiversity into the SDGs: The role of other effective area-based conservation measures (SDG 14.5)

This article explores the concept of “other effective area-based conservation measures” (OECMs) in the context of the UN Convention on Biological Diversity (CBD) Aichi Biodiversity Target 11 on marine protected areas and OECMs and its linkages to the Sustainable Development Goals (SDGs). It argues that mainstreaming biodiversity through CBD Aichi Biodiversity Targets’ implementation into the SDGs can contribute to a more systemic and comprehensive implementation of SDG 14.5 on conservation of at least 10% of marine and coastal areas. It argues that OECMs can complement MPAs and contribute to ecologically representative and effectively managed marine protected areas systems integrated into broader governance systems such as marine spatial planning. Selected global and local sectoral conservation measures are therefore highlighted in this analysis as potential forms of OECMs. At the local level, a case study of ecologically or biologically significant marine areas managed as locally managed marine areas (LMMAs) in Mozambique is discussed. This case study explores how multiple-use LMMAs, which respond to short-term fisher's needs and targeted biodiversity conservation, could contribute to the achievement of specific SDGs on food security, poverty elimination and resilient ecosystems if properly supported by long-term investments, strong institutions and integrated oceans management.

Myanmar endorses its first Locally Managed Marine Areas

Myanmar endorses its first Locally Managed Marine Areas

Short-term impacts and value of a periodic no take zone (NTZ) in a community-managed small-scale lobster fishery, Madagascar.

The small-scale lobster fisheries of Madagascar’s impoverished southeast coast account for the majority of national catch and export, making a significant contribution to the regional economy. Data suggests catches have declined, likely due to over-exploitation. In response, the community of Sainte Luce has established a locally managed marine area (LMMA) to manage their lobster fishery, including a 13 km2 periodic no take zone (NTZ). Participatory monitoring data were used to assess compliance, identify changes in catch per unit effort (CPUE) associated with the NTZ and consider the short-term value of the NTZ. Compliance is low for measures dictated by national legislation (minimum landing size (MLS), national closed season, prohibition on landing berried females), but may be higher for those designed by the community (NTZ). Upon NTZ opening in July 2015, an estimated 435% increase in catch was observed compared with the mean for the preceding five months, a product of increased effort and significantly higher CPUE. Zero Altered Negative Binomial modelling showed CPUE was significantly higher during the NTZ opening in 2015 and in 2016 when the opening period had been moved. Whilst it is unlikely that tangible ecological benefits have accrued from NTZ operation, there have been important socio-economic effects. Specifically, there was a 33% increase in the price fishers received, a significant effect at the bottom of the value chain. Temporary increases in catch and income acted as a catalyst, engaging neighbouring communities in fishery management, resulting in two additional NTZs. Attention is drawn to the fact that current national legislation may be sub-optimal and should be reviewed. Successful management of the regional fishery will require the state and industry to support communities in adopting community-based management. The NTZ measure considered here may be an effective tool to achieve this.

A Social–Ecological Systems Approach to Assessing Conservation and Fisheries Outcomes in Fijian Locally Managed Marine Areas

ABSTRACTLocally managed marine areas (LMMAs) are often recommended as a strategy to achieve conservation and fisheries management, though few studies have evaluated their performance against these objectives. We assessed the effectiveness of eight periodically harvested closures (PHCs), the most common form of management within Fijian LMMAs, focusing on two outcomes: protection of resource units and biodiversity conservation. Of the eight PHCs, only one provided biodiversity benefits, whereas three were moderately successful in protecting resource units (targeted fish biomass). Protection of resource units was more likely when PHCs were harvested less frequently, less recently, and when total fish biomass in open areas was lower. Our findings further suggest that monitoring, enforcement, and clearly defined boundaries are critical, less frequent harvesting regimes are advised, and culturally appropriate management incentives are needed. Although PHCs have some potential to protect resource units, they are not recommended as a single strategy for broad-scale biodiversity conservation.

One size does not fit all: Critical insights for effective community-based resource management in Melanesia

In recent years, Fiji's approach of combining traditional systems of community-based coastal management and modern management systems has become a successful blueprint for marine conservation, particularly the Locally Managed Marine Area (LMMA) network model. As a result of this success, conservation practitioners have imported the Fiji LMMA model to the Solomon Islands and in Vanuatu in hope of replicating the purported success attained in Fiji. This paper argues that because tenure systems and associated political systems in Fiji, the Solomon Islands, and Vanuatu are substantially different, one cannot simply extrapolate the more centralized tenurial and political Fiji model to the decentralized tenurial and politically eclectic Solomons and Vanuatu. This paper provides an analysis of some of the various approaches used in these countries to make a case for why socio-political diversity and historical particulars matter to resource management and conservation-in-practice (and for any development interventions). By examining examples of various nested and polycentric governance approaches—family, community, tribal, confederations, local community-based organizations (CBOs), and Church—it elucidate not only some of the differences between Fiji and Solomon Islands/Vanuatu, but also between Vanuatu and the Solomon Islands. This provides critical insights into some of the myriad of factors impinging on conservation aspirations in these countries and may offer some alternative ways forward not currently considered by conservation practitioners. Finally, the paper provides some guidelines to how to increase the long-term success of marine conservation programs for fisheries management and community-based management initiatives in the region.

“Living with our backs to the sea”: A critical analysis of marine and coastal governance in Guatemala

Guatemala's rich coastal and marine biodiversity provides essential ecosystem goods and services to local residents and the national economy through artisanal and commercial fisheries, aquaculture, port exports and, to a lesser extent, tourism. As in many other countries, national policies emphasise the significance of marine conservation and marine resources, primarily through implementing marine protected areas (MPAs). However, this assumes that governance, as reflected in legal, institutional and organizational frameworks, political capacity and human resources is sufficiently developed to ensure MPAs meet these goals. These issues are explored through presenting the first detailed analysis of coastal and marine governance in Guatemala. The research highlights a range of barriers to good governance which restrict the extent to which MPAs can function effectively. Recommendations are made which can capitalise upon the potential for locally managed marine areas as a means to facilitate the improved governance of coastal and marine resources in Guatemala.

Trophic cascades of bottom-up and top-down forcing on nutrients and plankton in the Kattegat, evaluated by modelling

The aim of the study was to investigate the relative importance of bottom-up and top-down forcing on trophic cascades in the pelagic food-web and the implications for water quality indicators (summer phytoplankton biomass and winter nutrients) in relation to management. The 3D ecological model ERGOM was validated and applied in a local set-up of the Kattegat, Denmark, using the off-line Flexsem framework. The model scenarios were conducted by changing the forcing by ±20% of nutrient inputs (bottom-up) and mesozooplankton mortality (top-down), and both types of forcing combined. The model results showed that cascading effects operated differently depending on the forcing type. In the single-forcing bottom-up scenarios, the cascade directions were in the same direction as the forcing. For scenarios involving top-down, there was a skipped-level-transmission in the trophic responses that was either attenuated or amplified at different trophic levels. On a seasonal scale, bottom-up forcing showed strongest response during winter-spring for DIN and Chl a concentrations, whereas top-down forcing had the highest cascade strength during summer for Chl a concentrations and microzooplankton biomass. On annual basis, the system was more bottom-up than top-down controlled. Microzooplankton was found to play an important role in the pelagic food web as mediator of nutrient and energy fluxes. This study demonstrated that the best scenario for improved water quality was a combined reduction in nutrient input and mesozooplankton mortality calling for the need of an integrated management of marine areas exploited by human activities.

A REVIEW: APPLICATIONS OF GEOGRAPHIC INFORMATION SYSTEMS (GIS) IN MARINE AREAS

In this review, the focus is the research of scientists which studied different GIS applications in marine areas. Based on literature review, the scientists stressed the use of GIS to assess and predict effects on marine environment. Marine spatial data are fundamental for a sustainable environmental management of marine areas, largely surrounded by countries with borders to the sea. In modern age, known as ‘’information age’’, data acquisition, analysis and management are essential for rapid, precise and economical resolutions. GIS applications were recommended to supply a principle from combining past and present circumstances in order to predict future for marine areas. This review provides an example to how GIS applications can be used in the monitoring, conservation, management, sustainable development and environmental protection stages of marine areas.

Developing locally managed marine areas: Lessons learnt from Kenya

Coastal communities in Kenya are increasingly adopting Locally Managed Marine Areas (LMMAs) and by 2015, 24 had been established. Coastal communities perceive the objectives of these LMMAs are to primarily conserve fisheries and marine resources and secure alternative sources of income. In this study we examined if there are generic approaches in how these LMMAs were established, that can be used for developing national guidelines as well as have application to other locations in the western Indian Ocean region. The study involved a literature review of all documents available on the LMMAs and key informant interviews.We found LMMAs in Kenya go through five phases to become fully established and operational: i) Conceptualisation, ii) Inception, iii) Implementation, iv) Monitoring and management; and v) Ongoing Adaptive Management. We defined each stage by the activities that are taking place which determine how far a LMMA has reached in its development. The final phase is when a LMMA exists sustainably in a continuous learning process. Out of 19 LMMAs assessed, four had reached the fifth stage of ‘Ongoing Adaptive Management’ though not all elements of this stage were fully operational.The Kenyan model differs from the widely known Pacific model of four phases due to an additional initial ‘Conceptualisation’ phase. Our results illustrate the need for full acceptance of the LMMA concept by stakeholders before progressing to the ‘Inception phase.’ When this step was missed many LMMAs stalled due to unaddressed training needs, incomplete involvement of stakeholders and lack of financial resources, management and operational structures. These five phases provide a useful guide for communities and other stakeholders to follow when developing LMMAs, or for those that are established and need guidance on their operations.Common factors that we found associated with the development of LMMAs were informed and committed community members, past training in community based marine resource management, a supportive legal framework, external funding and opportunities for sharing LMMA information. The occurrence of an exchange visit to an existing LMMA was invariably the trigger for a community to establish their own LMMA. Weaknesses were seen in poor enforcement on the water and inadequate ongoing education and training. Further there was very little understanding of the costs of establishing and running a LMMA, therefore long term financial sustainability was problematic. Thus, although the rapid increase in the number of LMMAs in Kenya is a conservation success, their effectiveness will be thwarted if enforcement and financial management are not addressed.

Analysis of Perceptions and Knowledge in Managing Coastal Resources: A Case Study in Fiji

Sustainable management of coastal resources depends on human knowledge and perceptions of natural resources and coastal environments. However, empirical evidence has been limited in order to understand linkages between knowledge, perceptions and collective actions to achieve sustainable resource management. This case study analyzed perceptions and knowledge among diverse stakeholders: villagers, government officials, scientists and staff of a non-governmental organization who are collaboratively working in a Fijian coastal community to manage the local coastal resources. Analyses were made using the integrated local environmental knowledge (ILEK) concept and frameworks of discourse analysis to clarify interlinkages between perceptions, knowledge and collective actions for a variety of examples. Research was conducted in Kumi village on the island of Viti Levu in Fiji, and the investigated projects included the management of a locally managed marine area, seaweed aquaculture, sea cucumber restoration and ginger plantations. These initiatives have shown that diverse knowledge on coastal resources and environments influence perceptions among people in a complex way, and transformation of perceptions produced new sets of knowledge through the generation of hypotheses regarding the management of coastal resources. Collective actions were promoted by the transformation of perceptions, and social learning processes were mobilized by these collective actions. Traditional institutions, cultures and leadership roles deeply embedded in the local communities had strong influences on shared perceptions among community members to provide foundations for collective actions. Dynamic transformations of perceptions promoted by integrated knowledge among community members were critical enablers of collective actions to achieve sustainable resource management.

Spatial prediction of demersal fish diversity in the Baltic Sea: comparison of machine learning and regression-based techniques

Marine spatial planning (MSP) is considered a valuable tool in the ecosystem-based management of marine areas. Predictive modelling may be applied in the MSP framework to obtain spatially explicit information about biodiversity patterns. The growing number of statistical approaches used for this purpose implies the urgent need for comparisons between different predictive techniques. In this study, we evaluated the performance of selected machine learning and regression-based methods that were applied for modelling fish community indices. We hypothesized that habitat features can influence fish assemblage and investigated the effect of environmental gradients on demersal fish diversity (species richness and Shannon–Weaver Index). We used fish data from the Baltic International Trawl Surveys (2001–2014) and maps of six potential predictors: bottom salinity, depth, seabed slope, growth season bottom temperature, seabed sediments and annual mean bottom current velocity. We compared the performance of six alternative modelling approaches: generalized linear models, generalized additive models, multivariate adaptive regression splines, support vector machines, boosted regression trees and random forests. We applied repeated 10-fold cross-validation, using accuracy as the measure of model quality. Finally, we selected random forest as the best performing algorithm and implemented it for the spatial prediction of fish diversity from the Baltic Proper to the Kattegat. To obtain information on the data reliability and confidence of the developed models, which are essential for MSP, we estimated the uncertainty of predictions with standard deviation of predictions obtained from all the trees in the ensemble random forest method. We showed how state-of-the-art predictive techniques, based on easily available data and simple Geographic Information System tools, can be used to obtain reliable spatial information about fish diversity. Our comparative work highlighted the potential of machine learning method to reduce prediction error in modelling of demersal fish diversity in the framework of MSP.

Economic impact of climate change and climate change adaptation strategies for fisheries sector in Fiji

Capture fisheries and aquaculture sectors have played major roles in the national economy and food security of Fiji. But climate change may place substantial stress on these sectors within this archipelago. This paper assesses the potential economic impact of two important climate change adaptation strategies in Fiji, natural resource management (NRM) and aquaculture, using a market fish supply–demand model. The model undertakes a comparative analysis of alternative fisheries development scenarios for 2035 and 2050, while taking account of the impact of climate change on the fisheries sector. The modeling and scenario analyses show that promoting aquaculture can help raise aggregate fish production, consumption, and trade. However, the required increases in aquaculture could be massive. While aquaculture development alone is unlikely to meet the growing excess demand for fish in Fiji, it will be an important component in adapting to the negative effects of climate change on capture fisheries. Various NRM strategies, such as marine protected areas (MPAs) and locally managed marine areas (LMMAs), are projected to have positive impacts in Fiji, expanding the stock and catch of fish. But current efforts on various NRM strategies are too small to have any meaningful impact to reverse the declining trends of coastal fisheries catch. Efforts would need to be greatly scaled-up to achieve significant production gains.

Indicators of herbivorous fish biomass in community-based marine management areas in Fiji

There has been a resurgence in community-based management of coral reef resources in the developing world over the last two decades. However, many of the threats to reef ecosystems are increasing at a rate beyond local knowledge acquisition. Consequently, there is a continuing need for management tools and monitoring to support community-based approaches. Using algal, fish and reef indicators we provide a rapid assessment method of herbivorous fishes in Locally Managed Marine Areas in Fiji. The algal indicator technique provided a time-integrated assessment of the process of herbivory within Locally Managed Marine Areas and could be used by untrained community members to quantify management responses. Generally, reefs with higher herbivore biomass had a diverse low biomass of algae typical of healthy reefs. Reefs with fewer herbivores had a higher biomass of turf or leathery algae typical of degraded reefs. These results show that simple ecological indicators can be a useful addition to the existing local knowledge that underpins community-based management.

Legal and Institutional Framework for Effective Management of Marine Managed Areas in Tanzania, Zanzibar Report

The Swahili people in Zanzibar have traditionally depended heavily on sailing and fishing in the waters of the Indian Ocean for livelihood. Zanzibar’s marine and coastal environments are comprised of an interconnected variety of complex ecosystems. These ecosystems have supported and shaped the local culture, economy and social well-being of coastal Zanzibaris. The healthy functioning and continuous provision of goods and services by Zanzibar’s marine ecosystems rely on the wise management and protection of its essential habitats and resources. A few key actions are required to ensure that the direct and indirect benefits provided by the ocean are maintained into the future. Perhaps one of the most critical needs is to strengthen the legal and institutional framework for sustainable management and protection of marine and coastal resources and to ensure effective implementation of the laws and regulations.

Understanding socio-ecological drivers of spatial allocation choice in a multi-species artisanal fishery: A Bayesian network modeling approach

Effective management of artisanal fisheries requires understanding fishers, their behaviors, and the drivers that underpin their choices. Behavioral drivers are critical links in understanding the interactions between social and ecological systems and can help inform effective management approaches. A Bayesian Belief Network modeling approach was used to investigate a diverse range of qualitative and quantitative social and ecological drivers of spatial location choice in a multi-species artisanal dive fishery in Costa Rica. Empirical and observer data used to populate the BBN showed the influence of economic factors, environmental conditions as well as social interactions on the decision-making process of spatial location choice. Good governance scenarios represented by Responsible Fisheries Marine Areas Management were analyzed for both hookah and free diving methods to assess the effects of responsible fishing on the fishers and the fishery. Model based-scenario analysis suggests that management interventions should consider the fisher's potential behavioral responses in the context of environmental variability, dependence on cultural assets, and food security. The results show that there is a need to understand fisher's decisions based on broad socio-ecological system understanding and consider the environmental outcomes alongside food security and the cultural significance of different marine species to fishing communities.