Culture-based Fisheries Research Articles

The trophic state of the reservoir influences the allometric coefficient and condition factor of Giant Freshwater Prawn (Macrobrachium rosenbergii) cultured in perennial reservoirs of Sri Lanka

Giant Freshwater Prawn (Macrobrachium rosenbergii) is an essential crustacean species in culture-based fisheries of Sri Lanka. Studying the morphometric characteristics and empirical models in fishing and aquaculture is highly beneficial; thus, it is the most accurate way of analyzing growth patterns. The present study aimed to establish the length-weight relationship and compute the relative condition factor for the M. rosenbergii cultured in trophically different perennial reservoirs in Sri Lanka, considering the trophic status of the reservoirs. The allometric coefficient and condition factor of M. rosenbergii concerning the trophic state of the reservoir were empirically ascertained from the samples collected from twenty-five dry-zone perennial reservoirs of Sri Lanka. Carlson's Trophic State Index (TSI) was calculated based on the chlorophyll-a content. The allometric coefficient and relative condition factor were computed using the total length and weight of the M. rosenbergii. The TSI ranging between 44.09±0.47 and 65.15±0.24 differed significantly (p<0.05). Sexual dimorphism in the growth of males over the female M. rosenbergii was ascertained with the aid of allometric coefficient (b value) 3.2306 (positive allometric growth) and 2.9534 (negative allometric growth), respectively. In eutrophic perennial reservoirs, Giant Freshwater Prawns showed the highest allometric coefficient in both sexes. There was a positive correlation between the allometric coefficient and TSI among males, r(23)=0.7210, p<0.001, and combined sexes, r(23)=0.7900, p<0.001, respectively. The results of the present study revealed that the trophic state of the reservoir influences the allometric coefficient and condition factor of M. rosenbergii cultured in perennial reservoirs of Sri Lanka.

Ecological assessment of a subtropical floodplain wetland of the Ganga basin in the context of changing climate using GIS tools

Abstract Climate change associated with anthropogenic stressors are considered the main threat to the tropical wetlands, resulting in reduced water connection followed by a decline in ecological functions. This article presents a systemic approach to assess the present ecological status of a tropical floodplain wetland concerning the fisheries and associated ecosystem services. The analysis of historic climatic data indicated significant change (increasing average annual air temperature, R2 = 0.098; decreasing total annual rainfall, R2 = 0.042). In addition, a significant reduction in the wetland area was also observed. Altogether, 45 fish species were reported in the studied wetland, of which 2 are listed as endangered and 7 are near threatened. The present study demonstrated the variation of the important fisheries-related environment and nutrient parameters of the wetland through the geographic information system (GIS)-based spatial distribution map for the reader's digest. It has been found that the provisioning ecosystem services are higher in number (n=9) followed by supporting (n=6), regulating (n=4), and cultural (n=2) ecosystem services. Finally, we have discussed some important case-specific sustainable climate-smart adaptation and mitigation approaches to strengthen the resilience and adaptive capacity of fishers.

An Ecopath perspective on the maximum sustainable yield of a macrophyte infested wetland in Eastern India

Wetlands are recognized as one of the most productive aquatic ecosystems. This high productivity supports its enormous biodiversity, aiding a scope for the small scale fisheries within it. Basically, these wetlands act as platforms for culture-based fisheries (CBF) i.e practice of stocking fish seeds and harvesting the grow out fishes at later. Often in tropical wetlands, the high nutrient load and high temperature enable the luxurious growth of macrophytes. Moreover, this macrophyte infestation is considered as a bottleneck for wetland managers. Facing a similar situation our studied Beledanga wetland is a macrophyte-infested wetland and the invasive Eichhornia crassipes is the most dominant macrophyte species. Owing to the macrophyte problem, Grass carp have been stocked in it as a biocontrol agent, as grass carp is a known biocontrol agent for the macrophyte infestation situation and simultaneously it will raise the fish production. To ensure maximum sustainable production from the wetland by harnessing with the available resources, it is necessary to acquire knowledge about the system’s ecological status and its ecological networks. Thus, the Ecopath based mass-balanced model is one of the best suitable tools to know about the ecological organization of this Beledanga wetland. Considering the available data (observational and literature data), this study has constructed a mass-balanced Ecopath model with 14 functional groups including all fish groups, birds, plankton, benthos and detritus. It has been found that the zooplankton and benthos are the most utilized group and the birds are the keystone group in this wetland system. This wetland possesses a lower transfer efficiency as well as a low Finn’s cycling index (0.224%). The system is found as an immature system with moderate ascendancy and system reserve (overhead). Moreover, concerning the ecologically sustainable production from this wetland more virtual mass-balanced models were developed (i) to evaluate the optimum grass carp stocking to manage the macrophyte population and (ii) to assess the impact of the Eichhornia on the system functioning. The results show that the system can harbour 1.5 times more grass carp biomass than the present without hampering sustainability. Concerning the impact of Eichhornia, it has been noticed that this macrophyte affects the maturity and transfer process of the system. Moreover, its huge biomass only accumulates more detritus in the ecosystem.

Inland Fisheries: Challenging Issues & Management Strategies in Indian Context

Inland capture and culture fisheries is an important sector of Indian agriculture, providing employment, food and nutritional security, particularly to the rural poor and better access to protein-rich food for all. The country has shown continuous and sustained increments in fish production, since independence. The inland fisheries are composed of mainly three components i.e. fisheries resources, fish & fishers. The sector has vast production potential, particularly for inland aquaculture and culture-based fisheries resources. But nowadays, the sector is facing various challenging issues like environmental pressures, overexploitation, inadequate database & catch information, unequal gender participation, lack of sufficient infrastructure and inadequate governance systems. In order to overcome these issues, a holistic approach is required to manage the inland fisheries by involving its major components which are fisheries resources, fish & fishers. This is the need of the hour to take action in a collaborative manner by government, scientists, fishery managers, fishers and multiple resource users for sustainable management of inland fisheries resources by encompassing the concept of Ecosystem-based fisheries management. We all need to be responsible for our duties towards the conservation and management of aquatic resources, not only for conserving the wealth of inland fisheries for the present but for future generations also.

Екологічні проблеми Хаджибейського лиману та перспективи його рибогосподарського використання

Purpose.To study the peculiarities of the formation of the hydrological-hydrochemical regime and the ichthyocomplex of the Khadzhibey Estuary, to analyze the state of the ecosystem components of the water body in connection with the prospect of its further fishery exploitation. Methodology.Generalized results of studies conducted during 2000–2021 were used in the course of work. An analysis of the available data on the formation of the current hydrological and hydrochemical regime of the estuary, the peculiarities of the formation of the ichthyocenosis, the current composition of ichthyofauna, and the results of fishery activities was carried out. Hydrological, hydrochemical, hydrobiological and ichthyological studies were carried out according to standard methods [1, 2]. The materials obtained during field studies were processed at the laboratory of the Department of Aquatic Bioresources and Aquaculture of ODEKU. Findings. A retrospective analysis of the peculiarities of the formation of the aquatic ecosystem of the Khadzhibey estuary as a water body for the storage of purified household effluents was carried out. The causes and results of anthropogenic transformation of the water body, the stages and peculiarities of the formation of the ichthyological complex, the organization and current state of culture-based fisheries were revealed. Ways to improve the hydrological and hydrochemical state of the water body are being examined. Artificial reefs are one of the most important directions that should be developed in the water area of the Khadzhibey Estuary. The formation of the biota of these engineering structures will allow not only increasing the abundance and production of some fish species, e.g., gobies (Gobiidae), but also significant improving the ecological condition of the water body. Prospective directions for the development of aquaculture through the targeted formation of polyculture with the introduction of flatfishes (Pleuronectidae), turbots (Scophthalmidae), gobies (Gobiidae), sturgeons (Acipenseridae) and salmonids (Salmonidae) are proposed. It is shown that one of the promising forms of fish farming that can be successfully developed in the Khadzhibey Estuary is cage aquaculture aimed at growing valuable brackish and freshwater fish species. Originality. For the first time, an analysis of the peculiarities of the formation of the ecosystem and the ichthyological complex of the Khadzhibey Estuary as a water body is presented, the prospects for its further functioning are examined, and the promising directions of aquaculture development are determined. Practical value. The obtained results can be used to develop measures to stabilize and improve the state of the Khadzhibey E stuary ecosystem and introduce new, promising directions for the development of aquaculture. Key words: Khadzhibey estuary, storage water body, hydrological and hydrochemical regime, ichthyofauna, fish farming, aquaculture prospects.

Preferences of inland fishers for different management attributes in village tank cascade systems in Sri Lanka

CONTEXTA greater potential exists for developing culture-based fisheries (CBF) in village tank cascade systems (VTCS). A well-defined sustainable fishery management approach that is accepted and supported by the community is vital to enhance financial gains from an underutilized resource without compromising the social and environmental sustainability of the system. OBJECTIVESThe objectives of the study were to assess the fishers' preferences for different management attributes and their willingness to pay (WTP) for a sustainable management approach. The effects of socio-demographic characteristics and trust in the institution in determining the WTP were also explored. The study also computed the transaction cost and net gains from fisheries in tanks in selected VTCS in the Dry and Intermediate zones in Sri Lanka. METHODSFisheries management approaches differ in terms of their management structure, frequency of stocking, and restrictions on fishing. Fishers' preferences for these attributes and their WTP were assessed using the choice-based conjoint analysis (CBCA) method. A conditional logit model was used for the estimation of data obtained from 150 fishers in five tanks in VTCS. Transaction cost and net gains from fishing were estimated using standard measures. RESULTS AND CONCLUSIONSThe results suggest that fishers are most concerned about the institution that governs fishing. They have a strong preference for aquaculture management committee (AMC). They also would be willing to pay more to a management approach that places time restrictions than an approach with quantity restrictions. Fishers would be willing to pay an additional 275 LKR annually for a sustainable fishery management approach. The heterogeneity of fishers' preferences is explained by their trust in the community organization under which the fishing is managed and the level of income they derive from fishing. The estimates of the net gains from fishing explain the fishers' preferences for AMC over the other management approaches. The individual gains from fishing far exceed the sum of transaction and production costs under an AMC approach. SIGNIFICANCEThe results of this study contribute to a better understanding of fishers' preferences for different management attributes and their WTP for a sustainable fisheries management approach. To enhance community participation in fisheries management in VTCS, management approach needs to be aligned with the fishers' preferences. Since a preference for fishing regulated by the community exists, authorities can initiate the promotion of CBF in small tanks in VTCS.

Appraisal of culture‐based fisheries of giant freshwater prawn (Macrobrachium rosenbergii, De Man, 1879) in reservoirs of Sri Lanka

AbstractThe introduction of high economic value species like giant freshwater prawn (GFWP) makes culture‐based fisheries (CBF) a substantial source of income and simultaneously supports the livelihood development of rural fishers in Sri Lanka. However, this CBF strategy has been implemented without any scientific basis, and therefore, this paper evaluated the stocking and production data of GFWP in Sri Lankan reservoirs from 2011 to 2017 to identify interventions for achieving future sustainability. We used two distinct approaches to appraise the CBF strategies practised so far and decrypt the identified shortcomings in the initiatives. The first approach was a straight‐head univariate generalized additive model (GAM) analysis of stocking density (SD), production (PRD), recapture efficiency (RCE) and reservoir surface area (A). The latter approach was a hybrid PCoA‐GAM for detained data mining for a better management perspective. The relationships among SD, PRD RCE and A were significant and, stochastic PRD and RCE were reasoned by the biased stocking practices identified in the GAM analysis. The hybrid PCoA‐GAM is seemingly robust in predicting and explaining the deviances of PRD and RCE of GFWP CBF. Results indicated that the present practices of CBF of GFWP in Sri Lankan reservoirs suffer several weaknesses, overstocking in minor and understocking in both medium and major reservoirs are primarily under consideration, which includes inter alia, the need for effective tools for identification of suitable reservoirs, the inefficient harvesting practices, non‐optimal SDs coupled with the possible vulnerability of stocked postlarvae to high mortalities. According to the study, we prefer to set the optimum SD as 1500 PLs ha−1 to all reservoirs. A comprehensive study has been launched for the enhancement of CBF of GFWP in Sri Lankan reservoirs.

A remote sensing approach to explore the available water spread for fisheries development in the reservoirs of Godavari River Basin, Telangana, India

Reservoirs have tremendous fisheries potential amongst the inland water resources and aptly referred as ‘sleeping giants’, as the fish yield potential of these resources are yet to be tapped. Existing gaps in the availability of absolute information and data on the inland water resources hinder the applicability and implementation of various fisheries development programmes, which in turn impact inland fisheries production. The present study was carried out in the reservoirs viz., Sri Ram Sagar, Kaddam and Swarna from the Godavari Basin, covering the period 2016-2021, as a case study to demonstrate the use of remote sensed data in fisheries stock enhancement planning. The perennial and seasonal water spread area of the reservoirs under study, estimated through composite water maps prepared using Sentinel 2A data ranged between 8 to 19 and 4 to 29%, respectively. Further, the potential area for enclosure fish culture (both cage and pen culture) in these reservoirs were found to range between 14.89% (Sir Ram Sagar) to 48.54% (Kaddam). The field validated results revealed less than 0.1% of the perennial water spread area mapped in these reservoirs is under use for cage culture. This highlights under-utilisation of these reservoirs and demonstrates scope for developing enclosure fish culture or other culture-based fisheries for enhancing the fish production. The study also demonstrates the use of geospatial tools in development planning for expanding enclosure fish culture in the reservoirs and in turn enhancing fisheries production from the reservoirs in India. Keywords: Composite water maps, Enclosure fish culture, Geospatial tools, Godavari River, NDWI, Reservoir, Sentinel 2A data, Water spread area

Managing floodplain wetlands through culture-based fisheries (CBF) for livelihood security and sustainable development: a study from a biodiversity hotspot region of India

Managing floodplain wetlands through culture-based fisheries (CBF) for livelihood security and sustainable development: a study from a biodiversity hotspot region of India

Sustainable development of climate-resilient aquaculture and culture-based fisheries through adaptation of abiotic stresses: a review

Abstract Climate change is an inevitable event that obstructs the output of aquaculture farms and culture-based fisheries in open waters. It poses a serious threat to global food security, altering biodiversity, ecosystems, and global fish output by displacing fish stocks from their natural habitats. When compared to freshwater aquaculture, marine/coastal aquaculture is more affected. To combat the effects of climate change, several mitigation methods and adaptations are being implemented, emphasizing future demands of affordable protein. Selective breeding, species diversification, and aquaculture systems like integrated multi-trophic aquaculture, aquaponics, and recirculating aquaculture system are some of the most widely accepted and adapted solutions. Further research on intervention in seed and feed in terms of quality improvement, bioresource utilization, and technological and genetic improvement is required. Climate change policies from the government are also essential. The present study differs from previous reviews by portraying the various abiotic stress factors contributing to the drastic climate change, encompassing adaptation strategies followed in distinct aquaculture sources such as freshwater, inland saline water, brackish water, coastal waters, and culture-based capture fisheries with its future implications.

Integration of pen aquaculture into ecosystem-based enhancement of small-scale fisheries in a macrophyte dominated floodplain wetland of India.

The rapid degradation, overexploitation, and encroachment of floodplain wetlands have led to considerable decline in fish diversity and production from these invaluable aquatic resources threatening livelihood of the dependent fishers. The climate change evident in the fast few decades has further aggravated the problem of eutrophication causing water stress and sedimentation leading to rampant macrophyte proliferation affecting ecological and economic functioning of these ecosystems. Macrophyte control and management needs serious attention for sustaining ecosystem services provided by these resources. In this direction, pen culture of grass carp Ctenopharyngodon idella as a biocontrol for macrophytes along with Indian major carps was implemented in a co-management mode in Beledanga, a typical floodplain wetland, a gradually shrinking, macrophyte dominated floodplain wetland in lower Ganga basin. Indian major carps Labeo catla (6.28±0.23g), Labeo rohita (5.1±0.12g), Cirrhinus mrigala (3.5±0.08g) were stocked in the ratio 4:3:3 at the rate of 20 Nos.m-2 in pens (0.1ha each) in triplicate. Grass carp (7.1±0.42g) was stocked in pen at the rate of 20Nos.m-2 in duplicate. The fishes were fed with pelleted feed twice a day at the rate of 2-3% of body weight. The seed was overwintered in pens for a period of 90 days from November 2019 to January 2020. Average weight recorded at the end of culture period was 25.13±1.70g, 18.11±0.63g, 14.53±0.87g, and 39.20±1.90g in L. catla, L. rohita, C. mrigala, and C. idella, respectively. The survival of fish ranged from 70 to 81%. Growth performance and feed utilization efficiency of grass carp were significantly higher (p<0.05) compared to other carp species. The pen culture was found to be economically viable with a benefit cost ratio of 1.53. The fishes produced were released back into the open wetland as an additional input for culture-based fisheries. The intervention along with niche-based enhanced stocking led to 24% increase in the fish production from the wetland with grass carp contributing 20-22% of the total catch with 32% increase in revenue generated by the sale of fish within a short span of 1 year. The study successfully demonstrated technological suitability and economic feasibility of pen culture in this wetland and role of grass carp as a potential biocontrol species for macrophyte management. Grass carp stocked in open wetland grew to 0.8 to 1kg within 6 months and 2-2.3kg within a year and could utilize 40-45% of the submerged and emergent macrophytes. Integration and optimization of grass carp will not only aid in habitat management of macrophyte-choked wetlands but will also boost their small-scale fisheries by converting standing macrophyte biomass into protein-rich fish biomass. The enhanced production will also cater to nutritional and livelihood security of the dependent fishers.

Culture-based fisheries - oxbow lakes

This datasheet on Culture-based fisheries - oxbow lakes covers Identity, Overview, Case Study, Environmental Requirements, Growout Systems, Related Content, Further Information.

Reservoirs Fisheries Development and its Trade-offs with Conservation of Natural Fish Genetic Resources

The reservoirs spread across India are ideal water resources for fish production at very low input costs through environmentally safer and socially equitable manner. Nevertheless, the present fish production from the reservoirs is about one-third of its estimated potential. Enhanced capture fisheries, culture-based fisheries and recently cage culture systems are being implemented to bridge this gap, where stocking or artificial recruitment is the essential management tool. The stocked fishes can, at some stage or other, interfere with the natural ecosystem processes and have trade-offs with conservation of natural fish genetic resources, mainly of the rivers on which the reservoirs are built. Though it is difficult to prescribe a totally safe stocking protocol from a genetic point of view, scientifically sound strategies need to be put in place to minimize the adverse impacts of stocking. This paper focuses on the potential adverse impacts of stocking and suggests means that can help minimize its adverse impacts on the fish genetic resources.

Constraints in culture-based fisheries of Sri Lanka and strategies for future development

In the fisheries sector, fisheries enhancement through culture-based fisheries (CBF) has been recognized as an environmentally friendly approach, which is bound to contribute to increasing food fish production, especially in developing countries. Through concerted efforts, Sri Lanka achieved considerable success in CBF development in small village reservoirs in the country. However, there are some constraints to achieve the full potential in the development of CBF in Sri Lankan inland waters, which require certain interventions. Despite the availability of a magnitude of small village reservoirs in the country, the full potential of utilization of these water bodies is not achieved mainly due to the inadequacy of stocking material at the correct time under the present strategy of fish fingerling production for stocking reservoirs. It is therefore imperative that effective intervention be in place for the establishment of backyard hatcheries using simple technologies to the self-help community groups in the rural areas. The CBF strategies in non-perennial reservoirs of the country are essentially dependent on the water availability in reservoirs following monsoonal rainfall patterns. Due to anomalies in monsoonal rainfall patterns under climate change scenarios, water availability in non-perennial reservoirs in the dry zone of Sri Lanka for CBF development is rather unpredictable. As such, there is a potential risk that the rural groups engaged in fry-to-fingerling production face the difficulty of selling fish fingerlings to CBF farming groups when the non-perennial reservoirs are not filled due to insufficient monsoonal rains. An alternative strategy to link fingerling-producing community groups with the agricultural farming communities in minor perennial reservoirs should be in place to prevent such potential financial losses of fingerling producers.

Role of giant freshwater prawn (Macrobrachium rosenbergii) in livelihoods of the rural fishers of Northern Province of Sri Lanka

The overall objective of this study was to assess to what extent Macrobrachium rosenbergii culture in reservoir is sustainable and whether it has the potential to provide a livelihood option for reservoir fishers. Fisheries and socio-economic data collection were conducted from 2016 January to 2018 December in five perennial reservoirs in the Northern Province of Sri Lanka. Results revealed that culture-based fisheries and the introduction of M. rosenbergii in the five selected reservoirs have achieved considerable success and resulted in significant increases in fish production, income of fishers, availability of fresh fish for the rural communities and livelihood opportunities for fishing families. Socio-economic factors such as, age, fisheries experience, fish catch of the previous day, market value, household status and livelihood diversification influenced reservoir fishing. Low rainfall, strong wind, high temperature, over-growth of aquatic plants and algal blooms wildlife attacks and theft of fishing gear were identified as key stressors.

Gillnetting for small indigenous cyprinids in a Sri Lankan reservoir where culture-based fisheries are practiced

In Sri Lankan reservoirs, small, indigenous fish species (SIS) are abundant and can be differentially exploited using small mesh (15-38 mm stretched mesh sizes) gillnets without any detrimental effects on the cichlid fisheries. However, in the recent past a paradigm shift in the reservoir fisheries of Sri Lanka is observed from total dependence on exotic cichlids to exploitation of exotic carps, stocked in reservoirs for the development of culture-based fisheries (CBF). As fingerlings of Chinese and Indian major carps and common carp are regularly stocked in reservoirs for the development of CBF, it is essential to investigate the potential impact of the use of small mesh gillnets to catch SIS on stocked fish fingerlings on CBF. In the present study, small mesh gillnets were used to exploit SIS during September 2011 to March 2013 when carp fingerlings were stocked in Chandrika wewa, Sri Lanka. The results revealed that no carp fingerlings (except 2 specimens of Indian carp species) were caught in any of the fishing trials with small mesh gillnets. As juvenile fish and stocked fish fingerlings occur in shallow littoral areas of reservoir, and as small mesh gillnets are laid at the depths ≥ 1.5 m, there is a habitat segregation of these two categories of fish. It is therefore possible to introduce a subsidiary fishery with small mesh gillnets to exploit SIS, which can co-exist with CBF in reservoirs of Sri Lanka.

Institutional Robustness of Culture-based Fisheries in Perennial Reservoirs of Sri Lanka

Institutional Robustness of Culture-based Fisheries in Perennial Reservoirs of Sri Lanka

Fisheries technology innovation supports the Citarum Harum program

Indonesian waters cover about 75% of Indonesian areas and have an abundance of fish resources that must be used carefully and responsibly to maintain its sustainability. Indonesian waters must be considered by authorities and communities to increase fisheries production and habitat quality. One way is by using technological innovation. The Government launched the Citarum Harum Program, as the Government’s attention to the Citarum River. Citarum River has about 11,323 km2 large. The length of the river is about 300 km, starts from Mount Wayang until Java sea. Citarum River dammed into three reservoirs developed for fish culture (Saguling Cirata and Juanda) and industries, domestic, agriculture also animal husbandry along the river. The impact of the river is experiencing pollution. The World Bank responded to this condition and has the intention to improve the water quality of the Citarum river. The Research Institute for Fisheries Resources Enhancement under The Ministry of Marine and Fisheries made efforts to control industrial waste pollution through technologies. The technologies are phytoremediation, culture-based fisheries models (blooming Cyanophyceae, and Eichhornia crassipes with herbivorous/planktivorous fish stock), and KJA Smart. Innovation in fisheries technology is one of the bases for the management of water bodies in support of the Citarum Harum program.

Climate change and adaptation to social-ecological change: the case of indigenous people and culture-based fisheries in Sri Lanka

Rural coastal fishery systems in tropical island nations are undergoing rapid change. Using a case study from eastern Sri Lanka, this paper examines the ways in which indigenous Coastal-Vedda fishers experience and respond to such change. We conducted semi-structured interviews (n = 74), focus group discussions (n = 17, 98 participants), and key informant interviews (n = 38) over a 2-year period (2016–2019). The changes that most Coastal-Vedda fishers experience are disturbance from Sri Lankan ethnic war, changes in climate and the frequency and severity of natural disasters, increased frequency of human-elephant conflicts, increasingly unpredictable weather patterns, and transformation of the Coastal-Vedda due to social modernisation. We used a resilience-based conceptual framework focusing on place, human agency, collective action and collaboration, institutions, indigenous and local knowledge systems, and learning to examine fishers’ responses to rapid changes. We identified three community-level adaptive strategies used by the Coastal-Vedda: adaptive institutions with a multi-level institutional structure that facilitates collective action and collaboration, the use of culture-based fisheries (CBF), and diversification of livelihoods. We also recognized four place-specific attributes that shaped community adaptations: cultural identity and worldviews, co-management of CBF, flexibility in choosing adaptive options, and indigenous and local knowledge systems and learning. These adaptive strategies and place-specific attributes provide new insights for scientists, policymakers, and communities in the region, enabling them to more effectively work together to support community adaptation.

Culture-Based Fisheries in Rawa lebak lebung, South Sumatera, is it Applicable?

Rawa lebak lebung is a part of inland waters in South Sumatera which mostly used as the auction object, by granting a monopoly on fishing to Pengemin (auction winners). As an open-access resource, allowing a monopoly is considered to prevent conflicts of resource struggle and overuse. But in practice, the auction is precisely the cause of overexploitation, and the local community loses access to fishing. This study is intended to describe the suitability of Culture-Based Fisheries (CBF) implementation in the rawa lebak lebung in Ogan Komering Ilir (OKI) Regency based on practices under the auction regime, water quality, and aquatic biota communities. Increasing fish stocks and community involvement with CBF possible to develop with some adapted. This concept is carried out by spreading fish seeds to grow and harvest following fishing seasons, where local communities play an essential role. The analysis shows that the stock enhancement can be carried out in a limited way of the seed stocked. Poor swamp water quality requires the process of adaptation of seeds to be stocked. Community involvement is carried out by managing hatcheries, whose production is purchased by pengemin as an obligation to restore the environment.