scholarly journals Small-scale manjuba fishery around Cardoso Island State Park, SP, Brazil

2006 ◽  
Vol 66 (4) ◽  
pp. 963-973 ◽  
Author(s):  
T. A. Cardoso ◽  
N. Nordi
Keyword(s):  
Fishery Management ◽  
Small Scale ◽  
Management Technique ◽  
Fishing Gear ◽  
Economic Aspects ◽  
Fishing Community ◽  
State Legislation ◽  
Knowledge Based ◽  
Social Ecological ◽  
Island State

This work was carried out in the Enseada da Baleia and Vila Rápida communities. Data was provided by the Co-Management Committee of the Cardoso Island State Park (PEIC) on manjuba fishery management, technique and strategies used by the fishermen, as well as locally accumulated knowledge. Based on the results, social, ecological, and economic aspects of this type of fishing were analyzed. The importance of the accumulated knowledge and experience of this community, as well as the limitations imposed by local fishing gear, was concluded to be essential in conserving manjuba fishery conditions in the area. Industrial fishing, relevant state legislation, and market conditions were found to be the main obstacles to local fishery. Various proposals are suggested for manjuba fishery management, with emphasis on the need for fishing community participation in whatever measures are ultimately implemented.

scholarly journals Understanding Social-Ecological Challenges of a Small-Scale Hilsa (Tenualosa ilisha) Fishery in Bangladesh

2019 ◽  
Vol 16 (23) ◽  
pp. 4814 ◽  
Author(s):  
Mozumder ◽  
Pyhälä ◽  
Wahab ◽  
Sarkki ◽  
Schneider ◽  
...  
Keyword(s):  
Fishery Management ◽  
Large Population ◽  
Primary Data ◽  
Small Scale ◽  
Management Approach ◽  
Social Resilience ◽  
Migration Routes ◽  
Small Scale Fisheries ◽  
Social Ecological ◽  
Tenualosa Ilisha

Small-scale fisheries (SSFs) have been playing a crucial role in meeting the basic needs of millions of people around the world. Despite this, the sustainability of global fisheries is a growing concern, and the factors enabling or constraining the sustainable management of small-scale fisheries remain poorly understood. Hilsa shad (Tenualosa ilisha) is the single most valuable species harvested in Bangladesh waters, serves nutrition, income, and employment to the large population. This study analyzed the state and challenges of hilsa fishery in the Gangetic River systems (Padma and Meghna Rivers) by using two frameworks, namely the social-ecological systems (SES) and drivers-pressure-state-impact-responses (DPSIR) frameworks. Primary data for this analysis were collected by in-depth interviews (n = 130) and focus group discussions (n = 8) with various stakeholders in the hilsa fisheries. The perspectives explored here have been both critical and constructive, including the identification of problems and suggestions for improving the management of this particular social-ecological system. Hilsa fisheries, however, have come under severe threat since 2003 because of population growth, overfishing, pollution, climate change, the disruption of migration routes due to siltation, etc. All these have caused reduced catches and less stable incomes for fishers. This, in turn, has led to poverty, malnutrition, social tensions, stakeholder conflicts, and debt cycles amongst more impoverished fishing communities. These problems have been compounded by improved fishing technology amongst larger-scale ventures, the use of illegal fishing gears, and the non-compliance of government fishery management programs. Recommendations include the promotion of community-supported fisheries, the enhancement of stakeholder’s social resilience, the introduction of co-management approach, an increase in incentives and formal financial supports, and possible community-managed sustainable ecotourism including hilsa fishing-based tourism.

Values Underlying Preferences for Adaptive Governance in a Chilean Small-Scale Fishing Community

2020 ◽  
Author(s):  
Sarah A. Ebel ◽  
Christine M. Beitl ◽  
Michael P. Torre
Keyword(s):  
Environmental Change ◽  
Environmental Governance ◽  
Small Scale ◽  
Adaptive Governance ◽  
Fishing Community ◽  
A Value ◽  
Ways Of Life ◽  
Value Frames

Environmental change requires individuals and institutions to facilitate adaptive governance. However, facilitating adaptive governance may be difficult because resource users’ perceptions of desirable ways of life vary. These perceptions influence preferences related to environmental governance and may stem from the ways individuals subjectively value their work and their connections to their environment. This paper uses a value-based approach to examine individual and institutional preferences for adaptive governance in Carelmapu, Chile. We show that two groups had different value frames rooted in divergent ontologies which influenced their actions related to adaptive governance, creating conflict.

scholarly journals Deciphering Substrate-Specific Methane Yields of Perennial Herbaceous Wild Plant Species

Agronomy ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 451
Author(s):  
Moritz von Cossel ◽  
Lorena Agra Pereira ◽  
Iris Lewandowski
Keyword(s):  
Plant Species ◽  
Dry Matter ◽  
Plant Biomass ◽  
Cropping Systems ◽  
Wild Plant ◽  
Small Scale ◽  
Social Ecological ◽  
Wild Plant Species ◽  
Global Demand ◽  
Bioenergy Cropping Systems

The global demand for plant biomass to provide bioenergy and heat is continuously increasing because of a growing interest among many industrialized and developing countries towards climate sound and renewable energy supply. The exacerbation of land-use conflicts proliferates social-ecological demands on future bioenergy cropping systems. Perennial herbaceous wild plant mixtures (WPMs) represent an approach to providing social-ecologically more sustainably produced biogas substrate that has gained increasing public and political interest only in recent years. The focus of this study lies on three perennial wild plant species (WPS) that usually dominate the biomass yield performance of WPM cultivation. These WPS were compared with established biogas crops in terms of their substrate-specific methane yield (SMY) and lignocellulosic composition. The plant samples were investigated in a small-scale mesophilic discontinuous biogas batch test for determining the SMY. All WPS were found to have significantly lower SMY (241.5–248.5 lN kgVS−1) than maize (337.5 lN kgVS−1). This was attributed to higher contents of lignin (9.7–12.8% of dry matter) as well as lower contents of hemicellulose (9.9–11.5% of dry matter) in the WPS. Only minor, non-significant differences to cup plant and Virginia mallow were observed. Thus, when planning WPS as a diversification measure in biogas cropping systems, their lower SMY should be considered.

A Low Cost Knowledge Based System Framework for Design of Bending Die

2013 ◽  
Vol 549 ◽  
pp. 284-291 ◽  
Author(s):  
Deepak Panghal ◽  
Shailendra Kumar
Keyword(s):  
Sheet Metal ◽  
Low Cost ◽  
Visual Basic ◽  
Die Design ◽  
Small Scale ◽  
Production Rules ◽  
System Framework ◽  
Knowledge Based System ◽  
Sheet Metal Parts ◽  
Knowledge Based

This paper presents a low cost knowledge based system (KBS) framework for design of bending die. Considerations for development of KBS are discussed at some length. The proposed framework divides the task of development of expert system into different modules for major activities of bending die design. The procedure of development of KBS modules is also described at length. Production rules for each module are recommended to be coded in the AutoLISP language and designed to be loaded into the prompt area of AutoCAD or through user interface created using Visual Basic. Each module of the proposed framework is user interactive. Development of one module of the proposed framework is also described at length. This module is capable to assess manufacturability of bending sheet metal parts. An illustrative example is also included to demonstrate the usefulness of this module. The proposed system framework is flexible enough to accommodate new acquired knowledge. As the proposed system is implementable on a PC having AutoCAD software, therefore its low cost of implementation makes it affordable even by small scale sheet metal industries.

scholarly journals Effect of infrastructure design on commons dilemmas in social−ecological system dynamics

2015 ◽  
Vol 112 (43) ◽  
pp. 13207-13212 ◽  
Author(s):  
David J. Yu ◽  
Murad R. Qubbaj ◽  
Rachata Muneepeerakul ◽  
John M. Anderies ◽  
Rimjhim M. Aggarwal
Keyword(s):  
Design Feature ◽  
Irrigated Agriculture ◽  
Small Scale ◽  
Qualitative Behavior ◽  
Central Feature ◽  
Social Ecological ◽  
Vital Functions ◽  
The Face ◽  
Design Characteristics ◽  
Shared Infrastructure

The use of shared infrastructure to direct natural processes for the benefit of humans has been a central feature of human social organization for millennia. Today, more than ever, people interact with one another and the environment through shared human-made infrastructure (the Internet, transportation, the energy grid, etc.). However, there has been relatively little work on how the design characteristics of shared infrastructure affect the dynamics of social−ecological systems (SESs) and the capacity of groups to solve social dilemmas associated with its provision. Developing such understanding is especially important in the context of global change where design criteria must consider how specific aspects of infrastructure affect the capacity of SESs to maintain vital functions in the face of shocks. Using small-scale irrigated agriculture (the most ancient and ubiquitous example of public infrastructure systems) as a model system, we show that two design features related to scale and the structure of benefit flows can induce fundamental changes in qualitative behavior, i.e., regime shifts. By relating the required maintenance threshold (a design feature related to infrastructure scale) to the incentives facing users under different regimes, our work also provides some general guidance on determinants of robustness of SESs under globalization-related stresses.

scholarly journals Socio-Economic Conditions of Small-Scale Hilsa Fishers in the Meghna River Estuary of Chandpur, Bangladesh

2021 ◽  
Vol 13 (22) ◽  
pp. 12470
Author(s):  
Maruf Ahmed ◽  
Sabrina Jannat Mitu ◽  
Petra Schneider ◽  
Masud Alam ◽  
Mohammad Mojibul Hoque Mozumder ◽  
...  
Keyword(s):  
River Estuary ◽  
Well Being ◽  
Economic Conditions ◽  
Small Scale ◽  
Fishing Community ◽  
Low Literacy ◽  
Fishing Activity ◽  
Low Incomes ◽  
The Government ◽  
Structured Questionnaire

Hilsa fish (Tenualosa ilisha) have become an essential factor behind the well-being of the fishing community, giving fishers their identity as a source of cultural heritage. A field survey was conducted to understand the socio-economic conditions of hilsa fishers at the Meghna river estuary of Chandpur District using well-structured questionnaire interviews (N = 250) with hilsa fishers. The survey revealed that fishers’ livelihoods and living conditions were still below average due to low literacy levels, lack of professional skills, and low incomes. More than two-thirds of the fishers were entirely dependent on hilsa fishing, while more than one-third had between 11 and 20 years of fishing experience. More than two-thirds of the fishers did not have an alternative occupation during ban periods, and the incentives provided by the government were not adequately received by half of the fishers. Fishers were divided into three groups according to their dependence on hilsa fishing. Significant differences were found between these groups in terms of the age of fishers, annual income from fishing, and annual fishing activity days. Therefore, the government, Fisheries cooperatives, NGOs, and other relevant organizations must unite to support fishers for sustainable management.

scholarly journals Harmonization of laws related to the protection of artisanal fishermen fishing grounds in Aceh Province

2021 ◽  
Vol 869 (1) ◽  
pp. 012054
Author(s):  
S Sulaiman ◽  
M A Abdullah ◽  
T M Mansur ◽  
N Roesa
Keyword(s):  
Coastal Waters ◽  
Important Task ◽  
Fishing Ground ◽  
Small Scale ◽  
Fishing Gear ◽  
Potential Conflict ◽  
Legal Documents ◽  
Aceh Province ◽  
The Government ◽  
Harmonization Of Law

Abstract This paper aims to examine how to protect of artisanal fishermen fishing ground and the policies that protect them. Small-scale fisher fishing grounds has to have a special attention due to their limitation. They are using very simple fishing gear, so they can’t sail far away from the coastal waters. The Fishing law give a specific attention for this matter, by limiting fishermen with 5 gross tonnage (GT) are only able to conduct their activities within the coastal waters. This study combines legal documents and the results of interviews with fishermen on 5 GT vessel. this studi of find, then the Law Number 27/2016 changed this regulation by increasing gross tonnage for small-scale fishermen from 5 became 10 GT, and it attract more serious problems for these small-scale fishermen since they have no exclusive fishing ground anymore. It will also affect to changes of fishing lane; fishing ground and vessels authorization procedure. By increasing GT, the 10 GT vessels also have rights to sail in the same fishing ground with 5 GT vessels and it’s created a potential conflict between the fishermen. So, harmonization of law is important task for the government in avoiding the overlapping rules on vessels criteria, by choosing law that prioritize on small-scale GT vessels.

scholarly journals From Safety Net to Point of No Return—Are Small-Scale Inland Fisheries Reaching Their Limits?

2020 ◽  
Vol 12 (18) ◽  
pp. 7299
Author(s):  
Pina Lena Lammers ◽  
Torsten Richter ◽  
Jasmin Mantilla-Contreras
Keyword(s):  
Sustainable Management ◽  
Fishery Management ◽  
Safety Net ◽  
Small Scale ◽  
Current Function ◽  
Fish Stocks ◽  
Inland Fisheries ◽  
Point Of No Return ◽  
Agricultural Yields ◽  
Near Future

Small-scale inland fisheries (SSIF) are a livelihood opportunity for millions of people in developing countries. Understanding the economic, ecological, political and social impacts fishers are coping with can clarify weaknesses and challenges in the fishery management. Using the SSIF at Lake Alaotra, Madagascar, as an example, we analyzed the development and fishers’ perception of, and adaptation strategies to, change. We surveyed fish catches to assess the state of fish stocks and conducted interviews to understand fishers’ livelihood, problems, behavior and attitudes. Our results show that the fishery sector of Lake Alaotra has grown dramatically although fish catches have fallen sharply. Changes in species composition and low reproduction rates reflect the fishing pressure. A point of no return seems near, as decreasing agricultural yields force farmers to enter the fishery sector as a form of livelihood diversification. Lake Alaotra reflects an alarming trend which can already be seen in many regions of the world and may affect a growing number in the near future. The Alaotran fisheries demonstrate that SSIF’s ability to provide livelihood alternatives under conditions of insecurity will become increasingly important. It further highlights that the identification of ongoing livelihood dynamics in order to disclose possible poverty trap mechanisms and to understand fisheries’ current function is essential for sustainable management.

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