scholarly journals FISHING ACTIVITIES AND FISHERMEN INCOME IN RANAU LAKE, SOUTH SUMATRA

2015 ◽  
Vol 21 (1) ◽  
pp. 19
Author(s):  
Dina Muthmainah ◽  
Subagdja Subagdja ◽  
Makri Makri ◽  
Dwi Atminarso ◽  
Safran Makmur
Keyword(s):  
Field Survey ◽  
Small Scale ◽  
Fishing Activity ◽  
Fish Yield ◽  
Field Surveys ◽  
Small Scale Fisheries ◽  
Fish Resources ◽  
Fish Catch ◽  
Catch Composition ◽  
Economical Parameter

Fish resources contribute to the socio-economic development for people who live surrounding the waters. The fishermen of Ranau Lake, South Ogan Komering Ulu Regency, South Sumatra Province and West Lampung Regency, Lampung Province are the prime stakeholder and direct interest in fish resources, because they depend on it for their livelihoods or they are directly involved in its exploitation in some ways. However, to well manage these resources, it needs data and information about fish utilization and fishing activity. The objectives of this work are to assess fishing activities such as the fishing craft and gears, catch composition, fish yield, catch per unit of effort (CPUE) and to estimate the fihermen income with economical parameter such as cost and price. Field surveys were conducted from February to November 2014. Fishing activities data were collected from field survey and interview. The results showed that fish resources utilization in Ranau Lake was categorized as traditional and small scale fisheries using different selective fishing gears such gillnet, harpoon, net trap and basket trap with the fish catch in average of 696.66 g/day; 205.03 g/day; 1.584.06 g/day and 123.67 g/day, respectively. Fisherman income (IDR 2,163,300) means the fishermen in Ranau Lake reach standard Indonesian welfare.

scholarly journals Experimental evaluation of influence of FADs on community structure and fisheries in coastal Kenya

2018 ◽  
Vol 31 ◽  
pp. 6 ◽  
Author(s):  
Emmanuel K. Mbaru ◽  
Dorcas Sigana ◽  
Renison K. Ruwa ◽  
Elizabeth M. Mueni ◽  
Collins K. Ndoro ◽  
...  
Keyword(s):  
Fish Assemblages ◽  
Small Scale ◽  
Catch Per Unit Effort ◽  
Fish Stocks ◽  
Coastal Fisheries ◽  
Small Scale Fisheries ◽  
Open Sea ◽  
Catch Composition ◽  
Structural Indices ◽  
Fish Aggregating Devices

Fish aggregating devices (FADs) have been widely used by commercial fisheries to increase the catchability of pelagic stocks in the open sea. FADs have the potential to enhance nearshore small-scale fisheries where stocks are often overfished. This study examined changes in catch composition, abundance, catch and effort, and aspects of diversity in Kenya's nearshore coastal fisheries after deployment of anchored fish aggregating devices (AFADs). The study combined both fishery independent and dependent methods in assessing changes in fish assemblages post-deployment. Results showed orders of magnitude increase in length, weight, commercial value, and catch per unit effort (CPUE) of landed catch after deployment of FADs suggesting that FADs had a positive effect on the local fishery. Species richness at FAD sites increased post-deployment (n = 281) compared to pre-deployment values (n = 223). Simultaneous use of several complementary structural indices may be required in order to accurately describe and monitor fish assemblages around the FADs. The findings suggest that AFADs are capable of creating both short and long-term impacts on livelihoods, with the potential to deflect pressure on the overfished nearshore fish stocks. However, more research will be needed on redistribution of fish around FADs, design and placement configuration, and site selection amongst others.

scholarly journals Strategies of the small-scale fisheries on the Central Amazon floodplain

2002 ◽  
Vol 32 (1) ◽  
pp. 101-108 ◽  
Author(s):  
Carlos Edwar de Carvalho FREITAS ◽  
Vandick da Silva BATISTA ◽  
Antonio José INHAMUNS
Keyword(s):  
Hydrological Cycle ◽  
Small Scale ◽  
Good Tool ◽  
Central Amazon ◽  
Small Scale Fisheries ◽  
Fisheries Resources ◽  
Patterns Of Use ◽  
Target Fish ◽  
Catch Composition ◽  
High Level

A multivariate approach was applied to data of small-scale fisheries developed in Central Amazon, using information about catch composition, environment, fishing gear and season of the hydrological cycle. The correspondence analysis demonstrated to be a good tool for the analysis related multispecies fisheries. The analysis identified patterns of use of fisheries resources by the riverine communities, showing the correlation between the environmental factors and the fishing strategy for the capture of target fish species, indicating the high level of empiric knowledge about the environment and fisheries.

A spatial multivariate approach to understand what controls species catch composition in small-scale fisheries

2016 ◽  
Vol 175 ◽  
pp. 132-141 ◽  
Author(s):  
M. Grazia Pennino ◽  
Mario J.F. Thomé-Souza ◽  
Adriana R. Carvalho ◽  
Luiz Carlos da Silveira Fontes ◽  
Cristiano Parente ◽  
...  
Keyword(s):  
Small Scale ◽  
Multivariate Approach ◽  
Small Scale Fisheries ◽  
Catch Composition

scholarly journals PeskAAS: A near-real-time, open-source monitoring and analytics system for small-scale fisheries

PLoS ONE ◽  
2020 ◽  
Vol 15 (11) ◽  
pp. e0234760
Author(s):  
Alexander Tilley ◽  
Joctan Dos Reis Lopes ◽  
Shaun P. Wilkinson
Keyword(s):  
Open Source ◽  
Source Monitoring ◽  
R Package ◽  
Small Island ◽  
Small Scale ◽  
Small Scale Fisheries ◽  
Fish Catch ◽  
Catch Rates ◽  
Context Specific ◽  
Species Specific

Small-scale fisheries are responsible for landing half of the world’s fish catch, yet there are very sparse data on these fishing activities and associated fisheries production in time and space. Fisheries-dependent data underpin scientific guidance of management and conservation of fisheries systems, but it is inherently difficult to generate robust and comprehensive data for small-scale fisheries, particularly given their dispersed and diverse nature. In tackling this challenge, we use open source software components including the Shiny R package to build PeskAAS; an adaptable and scalable digital application that enables the collation, classification, analysis and visualisation of small-scale fisheries catch and effort data. We piloted and refined this system in Timor-Leste; a small island developing nation. The features that make PeskAAS fit for purpose are that it is: (i) fully open-source and free to use (ii) component-based, flexible and able to integrate vessel tracking data with catch records; (iii) able to perform spatial and temporal filtering of fishing productivity by fishing method and habitat; (iv) integrated with species-specific length-weight parameters from FishBase; (v) controlled through a click-button dashboard, that was co-designed with fisheries scientists and government managers, that enables easy to read data summaries and interpretation of context-specific fisheries data. With limited training and code adaptation, the PeskAAS workflow has been used as a framework on which to build and adapt systematic, standardised data collection for small-scale fisheries in other contexts. Automated analytics of these data can provide fishers, managers and researchers with insights into a fisher’s experience of fishing efforts, fisheries status, catch rates, economic efficiency and geographic preferences and limits that can potentially guide management and livelihood investments.

scholarly journals SOCIAL-ECOLOGICAL SYSTEM OF SEAGRASS AND SMALL-SCALE FISHERIES CONNECTIVITY IN MALANG RAPAT AND BERAKIT VILLAGES, BINTAN DISTRICT, RIAU ISLANDS

2016 ◽  
Vol 7 (2) ◽  
Author(s):  
Muhammad Nur Arkham ◽  
Luky Adrianto ◽  
Yusli Wardiatno
Keyword(s):  
Social Factors ◽  
Ecological System ◽  
Easy Access ◽  
Small Scale ◽  
Small Scale Fisheries ◽  
Fish Resources ◽  
Ecosystem Connectivity ◽  
Social Ecological ◽  
Seagrass Ecosystem ◽  
The Social

Seagrass ecosystem has important roles in ecological and social factors to support fisherman income. The purpose of this research was to map the social-ecological system connectivity of seagrass with small-scale fisheries with networks perspective, to identify social-ecological connectivity of seagrass with fisheries resource availability approaches in small-scale fisheries, and to estimate the benefits of fish resources relation to seagrass ecosystem in Malang Rapat and Berakit vilages. Social-ecological system connectivity of seagrass was proven by the spatial distribution of fishing areas, networks map markets, and dynamics of small-scale fisheries catches in the study site. Social-ecocoligal connectivity of seagrass was also proven by fish catches dominated by Siganidae, Scaridae, Lethrinidae, and Lutjanidae families. The fishermen income was supported by seagrass ecosystem connectivity which contributed revenue from fish catches totally Rp 202,124,00/day in Malang Rapat village and Rp. 193,151,00/day  in Berakit village. Other benefit of seagrass ecosystem located nearby the beach was that the fishermen can have an easy access or less fuel for fishing operation.Keywords: seagrass ecosystem, network map, connectivity, small-scale fisheries, social-ecological system, Riau islands

scholarly journals ANÁLISE SOCIOECONÔMICA E CARACTERIZAÇÃO DOS SISTEMAS PESQUEIROS DA COMUNIDADE DE IGUAÍBA, MARANHÃO

2019 ◽  
Vol 29 (1) ◽  
Author(s):  
Yago Bruno Silveira Nunes ◽  
Thalline Santos Diniz ◽  
Marina Bezerra Figueiredo
Keyword(s):  
Elementary Education ◽  
Production Systems ◽  
Structured Interview ◽  
Storage Conditions ◽  
The Other ◽  
Small Scale ◽  
Fishing Activity ◽  
Small Scale Fisheries ◽  
Direct Observations ◽  
The People

Este trabalho teve como objetivo identificar e caracterizar os aspectos socioeconômicos dos pescadores artesanais e a atividade pesqueira da comunidade de Iguaíba, localizada no município de Paço do Lumiar, Maranhão. A identificação de campo foi realizada por meio de visitas in loco. A principal técnica de coleta de dados foi a realização de entrevista semiestruturadas, contendo questões abertas e fechadas. Constatou-se que cerca de 95% dos pescadores entrevistados possuem o ensino fundamental incompleto. As pescarias são divididas entre o dono do barco e os pescadores, ou seja, 50% para o dono do barco e os outros 50% é dividido pelos outros pescadores. A comunidade pesqueira da Iguaíba é composta por pessoas que não dependem somente da pesca, mas sim de outras atividades produtivas, como: agricultura e manutenção de embarcações. Foram identificados oito sistemas de produção pesqueira na comunidade, sendo eles pedra, tainheira, malhão, manjuba, tarrafa, corvina, bandeirado e gozeira, em que a falta de investimentos acarreta na pouca autonomia das embarcações, nas condições de armazenamento dos organismos e na manutenção dos petrechos de pesca. A situação financeira das pessoas da região se caracteriza como relativamente baixa, já que dependem exclusivamente da pesca artesanal, da agricultura e de outras atividades lucrativas.SOCIOECONOMIC ANALYSIS AND CHARACTERIZATION OF THE FISHING SYSTEMS OF THE COMMUNITY OF IGUAÍBA, MARANHÃOABSTRACTThis work aimed to identify and characterize the socioeconomic aspects of artisanal fishermen and the fishery in the community of Iguaíba, located in the county of Paço do Lumiar, in the state of Maranhão. Field identification was carried out through on-site visits, as well as direct observations. The maindata collection technique was semi-structured interview, containing open and closed questions. It was found that about 95% of the fishermen interviewed had incomplete elementary education. The fisheries are divided between the owner of the boat and the fishermen, with 50% for the owner of the boat and the other 50% divided by the other fishermen. The fishing community of Iguaíba iscomposed of people who do not depend only on fishing, but on other productive activities, such as agriculture and boat maintenance. Eight fishery production systems were identified in the community, such as stone, tainheira, malhão, manjuba, tarrafa, corvina, bandeirado and gozeira, in which lack of investment implies little vessel autonomy, storage conditions of organisms and maintenance of fishing gear. The financial situation of the people in the region is characterized as relatively low, as they depend exclusively on small-scale fisheries, agriculture and other earning activities.Keywords: Artisanal fisheries; Socioeconomic profile; Fishing activity.

scholarly journals Effect of temporal and spatial resolution on identification of fishing activities in small-scale fisheries using pots and traps

2019 ◽  
Vol 76 (6) ◽  
pp. 1601-1609 ◽  
Author(s):  
Tania Mendo ◽  
Sophie Smout ◽  
Tommaso Russo ◽  
Lorenzo D’Andrea ◽  
Mark James
Keyword(s):  
Spatial Distribution ◽  
Spatial Resolution ◽  
Large Scale ◽  
Low Cost ◽  
Grid Cell ◽  
Analysis Data ◽  
Satellite System ◽  
Small Scale ◽  
Fishing Activity ◽  
Small Scale Fisheries

Abstract Analysis of data from vessel monitoring systems and automated identification systems in large-scale fisheries is used to describe the spatial distribution of effort, impact on habitats, and location of fishing grounds. To identify when and where fishing activities occur, analysis needs to take account of different fishing practices in different fleets. Small-scale fisheries (SSFs) vessels have generally been exempted from positional reporting requirements, but recent developments of compact low-cost systems offer the potential to monitor them effectively. To characterize the spatial distribution of fishing activities in SSFs, positions should be collected with sufficient frequency to allow detection of different fishing behaviours, while minimizing demands for data transmission, storage, and analysis. This study sought to suggest optimal rates of data collection to characterize fishing activities at appropriate spatial resolution. In a SSF case study, on-board observers collected Global Navigation Satellite System (GNSS) position and fishing activity every second during each trip. In analysis, data were re-sampled to lower temporal resolutions to evaluate the effect on the identification of number of hauls and area fished. The effect of estimation at different spatial resolutions was also explored. Consistent results were found for polling intervals <60 s in small vessels and <120 in medium and large vessels. Grid cell size of 100 × 100 m resulted in best estimations of area fished. Remote collection and analysis of GNSS or equivalent data at low cost and sufficient resolution to infer small-scale fisheries activities. This has significant implications globally for sustainable management of these fisheries, many of which are currently unregulated.

scholarly journals SEASONAL AND SPATIAL DYNAMIC OF SMALL SCALE FISHERIES IN CENTRAL AMAZONIA

2021 ◽  
Vol 6 (15) ◽  
pp. 206-223
Author(s):  
Vinícius Verona Carvalho Gonçalves ◽  
Jamerson Aguiar Dos Santos ◽  
Carlos Edwar de Carvalho Freitas
Keyword(s):  
Local Population ◽  
Principal Component ◽  
High Water ◽  
Small Scale ◽  
Catch Per Unit Effort ◽  
Fishing Activity ◽  
Small Scale Fisheries ◽  
Central Amazonia ◽  
Flood Period

Amazonia is considered to host some of the more productive freshwater fisheries of the world, and these are of key importance to the local population. Accordingly, fishing activity needs to be studied to evaluate its dynamics, so that long-term sustainability of the resource can be assured the fishing. The objective of the current study, therefore, was to analyze seasonal and spatial variation in the production of fish landed in the city of Manacapuru, in Central Amazonia. The landing data was collected daily from January to December 2012 at the main port of landing in Manacapuru, Amazonas, Brazil. Results indicate that lakes were most frequently visited by fishermen, but that rivers had higher catch values. In total, 39 species of fish were landed, with jaraqui escama grossa (Semaprochilodus taenirus) and jaraqui escama fina (Semaprochilodus insignis) being the species most exploited by fishermen. Landing had a seasonal character, with higher values in the rising and high water periods. Significant differences were observed between the different seasonal periods, with peak-flood period having the highest catch per unit effort (CPUE) values. Principal Component Analysis (PCA) revealed that fishing gear varied according to the fishing environment and exploited species.

scholarly journals Juveniles and undersized fish in small-scale fisheries: gillnets are not less implied than trawling

2021 ◽  
Vol 35 (2) ◽  
Author(s):  
Paulo De Tarso da Cunha Chaves
Keyword(s):  
Fish Species ◽  
Small Scale ◽  
Commercial Fishing ◽  
Southern Brazil ◽  
Size Selectivity ◽  
Study Region ◽  
Small Scale Fisheries ◽  
Fish Catch ◽  
Fishing Resources ◽  
Lower Size

Of particular concern in commercial fishing catch is 'size bycatch', i.e., the death of early stages of resources that would reach a marketable value when they turn into adults. This event is frequently associated with trawling because of the lower size selectivity of this gear as compared to gillnets. However, this is expected when small-scale fisheries (SSF) employ gillnets simultaneously in setnets + driftnets that mix multiple mesh sizes. This work analyzes fishing captures and compares characteristics of fish catch from gillnets and trawlers with respect to size at first maturation, legal size of capture, and expected discards. Data were obtained from 2007-2021 for SSF in Southern Brazil. A total of 112 fish species were represented in the data. Gillnets exploited fewer species than trawlers; however, most of these constitute fishing resources in the study region. Of the 19 species whose maturation size is known, nine occurred in gillnets as juveniles, and of the 14 species for which the legal size of capture is established, seven occurred in gillnets in prohibited sizes. Gillnets and trawlers presented size bycatch and affected different species between them, with four resources that were present in bycatch from both gillnets and trawlers. The broad range of mesh sizes employed by SSF warns of the discarding of undersized captures, and stresses the importance of policies addressing gillnet management.

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