scholarly journals Characterization of small-scale fisheries in the Camamu-Almada basin, southeast state of Bahia, Brazil

2008 ◽  
Vol 68 (4) ◽  
pp. 711-719 ◽  
Author(s):  
TCM. Souza ◽  
M. Petrere-Jr
Keyword(s):  
Low Income ◽  
Small Scale ◽  
Income Generation ◽  
Target Species ◽  
Market Prices ◽  
Marine Fishery ◽  
Small Scale Fisheries ◽  
Main Factor ◽  
Stock Abundance

In the Camamu-Almada basin, marine fishery is exclusively small-scale, with several structural deficiencies such as boats with low or absent navigational technology, lack of credit and low income. Local fishers complain that shrimp and lobster trawling fishing is the main factor responsible for low stock abundance, but they still persist in these activities as these two species command the highest market prices. So they feel that the target species are already over-fished. We suggest that proper management action, alternative ways of income generation and the payment of job insurance would help to mitigate the problem.

scholarly journals Supporting Spatial Management of Data-Poor, Small-Scale Fisheries With a Bayesian Approach

2021 ◽  
Vol 8 ◽  
Author(s):  
Jennifer Rehren ◽  
Maria Grazia Pennino ◽  
Marta Coll ◽  
Narriman Jiddawi ◽  
Christopher Muhando
Keyword(s):  
Spatial Distribution ◽  
Marine Conservation ◽  
Environmental Drivers ◽  
Small Scale ◽  
Target Species ◽  
Short Term ◽  
Conservation Areas ◽  
Bayesian Hierarchical ◽  
Small Scale Fisheries ◽  
Spatial Management

Marine conservation areas are an important tool for the sustainable management of multispecies, small-scale fisheries. Effective spatial management requires a proper understanding of the spatial distribution of target species and the identification of its environmental drivers. Small-scale fisheries, however, often face scarcity and low-quality of data. In these situations, approaches for the prioritization of conservation areas need to deal with scattered, biased, and short-term information and ideally should quantify data- and model-specific uncertainties for a better understanding of the risks related to management interventions. We used a Bayesian hierarchical species distribution modeling approach on annual landing data of the heavily exploited, small-scale, and data-poor fishery of Chwaka Bay (Zanzibar) in the Western Indian Ocean to understand the distribution of the key target species and identify potential areas for conservation. Few commonalities were found in the set of important habitat and environmental drivers among species, but temperature, depth, and seagrass cover affected the spatial distribution of three of the six analyzed species. A comparison of our results with information from ecological studies suggests that our approach predicts the distribution of the analyzed species reasonably well. Furthermore, the two main common areas of high relative abundance identified in our study have been previously suggested by the local fisher as important areas for spatial conservation. By using short-term, catch per unit of effort data in a Bayesian hierarchical framework, we quantify the associated uncertainties while accounting for spatial dependencies. More importantly, the use of accessible and interpretable tools, such as the here created spatial maps, can frame a better understanding of spatio-temporal management for local fishers. Our approach, thus, supports the operability of spatial management in small-scale fisheries suffering from a general lack of long-term fisheries information and fisheries independent data.

Where small can have a large impact: Structure and characterization of small-scale fisheries in Peru

2010 ◽  
Vol 106 (1) ◽  
pp. 8-17 ◽  
Author(s):  
Joanna Alfaro-Shigueto ◽  
Jeffrey C. Mangel ◽  
Mariela Pajuelo ◽  
Peter H. Dutton ◽  
Jeffrey A. Seminoff ◽  
...  
Keyword(s):  
Large Impact ◽  
Small Scale ◽  
Impact Structure ◽  
Small Scale Fisheries

scholarly journals Net Fisheries’ Métiers in the Eastern Mediterranean: Insights for Small-Scale Fishery Management on Kalymnos Island

Water ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 1509 ◽  
Author(s):  
Kyriakoula Roditi ◽  
Dimitris Vafidis
Keyword(s):  
Mediterranean Sea ◽  
Fishery Management ◽  
Eastern Mediterranean ◽  
Market Price ◽  
Aegean Sea ◽  
Small Scale ◽  
Target Species ◽  
Essential Information ◽  
Small Scale Fisheries ◽  
The Difference

Small-scale fisheries constitute an important component of coastal human societies. The present study describes the small-scale net fisheries on Kalymnos Island (south-east Aegean Sea) that harbors the largest small-scale fleet in the eastern Mediterranean Sea. In addition, this study aims to evaluate their characteristics and economics. Relevant métiers were identified through a multivariate analysis by inputting the main resources and fishing gear data that were recorded during landings. Four main practices were observed being used as fishing gears, gillnets and trammel nets, targeting the species Mullus barbatus, Boops boops, Mullus surmuletus, Scorpaena porcus, and Sepia officinalis. Further analysis, which incorporated data concerning the type of the gear used, revealed 11 distinct métiers. Most of these métiers are practiced by other Mediterranean small-scale fisheries as well, in terms of target species, gear and seasonality. However, the métier that had its target species as B.boops is not practiced in other Mediterranean small-scale fisheries. The seasonal rotation of métiers was determined by the availability of different species rather than their market price. The results revealed the difference in fishing practice used by the fishermen in the study area compared to other fishing practices in the Mediterranean Sea. In particular, the fishermen of this study area targeted more species (B.boops) with a very low market price. They also provided essential information for the development and implementation of management plans aiming at the sustainability of small-scale fisheries.

scholarly journals New Approach for Codend Selectivity: a Case Study of Coastal Beach Seine for Big-Scale Sand Smelt (Atherina boyeri) Fishery in İznik Lake

2020 ◽  
Vol 20 (9) ◽  
pp. 681-692
Author(s):  
Mehmet Cilbiz ◽  
Rahmi Uysal ◽  
Zafer Tosunoglu ◽  
Celalettin Aydin ◽  
Ahmet Alp ◽  
...  
Keyword(s):  
Low Income ◽  
Mesh Size ◽  
Field Studies ◽  
Likelihood Method ◽  
Small Scale ◽  
Beach Seine ◽  
Monthly Basis ◽  
Small Scale Fisheries ◽  
Coastal Beach ◽  
First Maturity

Sand smelt (Atherina boyeri Risso, 1810), which is an exotic species with invasive character, is the third most caught species in the small-scale fisheries among the inland fisheries in Turkey. The fact that it has become an important source of income for the fishermen with low income due to its export potential has led to the maintenance of its stock recently. In this study, the selectivity of coastal beach seine used in the fishing of the species was investigated. A specially designed coastal beach seine with 10 m codend consisting of 4 different compartments was used in the study. Among the compartments of the codend, which was surrounded by a 6 mm mesh cover, in the codend panels mesh with 9, 12 and 14 mm were used. Field studies were carried out on a monthly basis in 4 different stations of İznik Lake in 2014. Selectivity data were collected by the covered codend method and analyzed by means of a logistic equation with the maximum likelihood method. A totally 3053 individuals were caught length ranged from 2.6-11.2 cm and weight ranged from 0.11-11.02 g. The mean L50 values of 14, 12- and 9-mm panels were determined as 6.71, 5.62 and 4.51 cm total length, respectively. It is concluded that 12 mm mesh size panel is suitable for sustainable A. boyeri fishery by beach seine net when considered given by length at first maturity size.

scholarly journals Seasonal dynamics of small-scale fisheries in the Adriatic Sea

2018 ◽  
Vol 19 (1) ◽  
pp. 21 ◽  
Author(s):  
FABIO GRATI ◽  
ADMIR ALADZUZ ◽  
ERNESTO AZZURRO ◽  
LUCA BOLOGNINI ◽  
PIERLUIGI CARBONARA ◽  
...  
Keyword(s):  
Seasonal Dynamics ◽  
Adriatic Sea ◽  
Economic Value ◽  
Fishing Effort ◽  
Small Scale ◽  
Target Species ◽  
Frequency Distributions ◽  
Small Scale Fisheries ◽  
Blue Growth ◽  
Physical And Chemical

The main aim of the present study is to increase the knowledge on the seasonal dynamics of the set gears used by Adriatic small-scale fisheries (SSFs) through the collation of data (landings, fishing effort, composition of catches, length-frequency distributions of target species and economic value of landings) on target species,. The study focused on the three set gears mainly used in the basin: gillnets, trammel nets and traps. The results confirmed that SSFs are diverse, complex and dynamic, representing an economic and social engine and providing seafood and employment to local economies. In the Adriatic Sea, SSFs exploit coastal fishing grounds where the seasonal fluctuations of the physical and chemical parameters of the water column strongly influence the occurrence of the different species. Because of this, many different types of set gears are currently used to catch a pool of target species over the year. Fishermen use more than one set gear during the year and tend to increase the fishing effort when the target species concentrate inside the coastal areas during the recruitment or the spawning season. Accordingly, landings reached the highest values during such periods and often include a large portion of juveniles and/or spawners. The study highlighted that the lack of appropriate data and complete statistics is still one of the main constraints for most of the Adriatic coastal countries, as few countries have in place routinely monitoring programs while others are dealing mostly with estimates. These gaps often have the effect of marginalizing and undervaluing the real role of SSFs in a Blue Growth process.

scholarly journals Structure and spatio-temporal dynamics of the artisanal small-scale fisheries at the future MPA of “Taza” (Algerian coast, SW Mediterranean)

2018 ◽  
Vol 19 (3) ◽  
pp. 555 ◽  
Author(s):  
IBRAHIM BOUBEKRI ◽  
ALEX JAMES CAVEEN ◽  
ABDALLAH BORHANE DJEBAR ◽  
RACHID AMARA ◽  
HUBERT MAZUREK
Keyword(s):  
Temporal Dynamics ◽  
Field Work ◽  
Management Plan ◽  
Small Scale ◽  
Target Species ◽  
Small Scale Fisheries ◽  
The Future ◽  
Mullus Surmuletus ◽  
Spatio Temporal ◽  
Management Approaches

Artisanal Small-Scale Fisheries (SSFs) are a primordial and very diverse activity in the Mediterranean, also within Marine Protected Areas (MPAs). This diversity is explained in terms of target species, gears, and fishing strategies. The main objective of this work was to investigate the spatio-temporal dynamics of artisanal SSFs of the future MPA of “Taza” (Algeria, SW Mediterranean). Data were collected through direct assessment of daily landings and using questionnaires. They were the subject of multivariate analyses that allowed us to identify the métiers practiced by artisanal fishers. During the one year (May 2013 to April 2014) field work period, 1330 fishing trips and 1613 fishing operations in 16 fishing grounds were recorded in the Ziama fishing harbor, where 15.2 tons of total catch was assessed. Our results show that, in the study area, the boats are predominantly gillnetters and that among the five métiers characterized by target species, gear type, fishing grounds, and fishing seasons, two métiers (“Mullus surmuletus trammel net” and “Sparids monofilament gillnet”) are practiced throughout the year, while the remaining three (“Sarda sarda driftnet”, “Merluccius merluccius set gillnet”, and “Pagellus set gillnet”) are specific to a determined period of the year. The ‘Mullus surmuletus trammel net’ métier represents 40% of the total fishing operations, of which 57.5% are carried out in the coastal sector at - 25 m. This study could contribute to defining the appropriate management approaches for SSFs in the future MPA of “Taza” by providing baseline information to build a sound management plan. In Algeria, it will certainly serve as a scientific reference in terms of zoning, protection of biodiversity, and specific monitoring at particular locations and periods of the year for the sustainable management of MPAs.

The total economic value of small-scale fisheries with a characterization of post-landing trends: An application in Madagascar with global relevance

2013 ◽  
Vol 147 ◽  
pp. 175-185 ◽  
Author(s):  
Michele Barnes-Mauthe ◽  
Kirsten L.L. Oleson ◽  
Bienvenue Zafindrasilivonona
Keyword(s):  
Economic Value ◽  
Small Scale ◽  
Small Scale Fisheries ◽  
Total Economic Value

RECONCILING ADULT EDUCATION NEEDS FOR SUSTAINABLE DEVELOPMENT: THE CASE OF TRINIDAD AND TOBAGO SMALL SCALE FISHERIES

2013 ◽  
Vol 52 (1) ◽  
pp. 72-83
Author(s):  
Kim I. Mallalieu ◽  
Candice V. Sankarsingh
Keyword(s):  
Sustainable Development ◽  
Trinidad And Tobago ◽  
Critical Role ◽  
Education And Training ◽  
Training Needs ◽  
Small Scale ◽  
Market Prices ◽  
Small Scale Fisheries ◽  
Fierce Competition ◽  
And Training

The critical role of fisheries to food security and coastal livelihoods, as well as its impact on dwindling marine resources, motivate an examination of the degree to which education and training needs in the fisheries sector are met. This paper investigates the specific case of Trinidad and Tobago small scale fishers, a particularly vulnerable population whose livelihoods are bidirectionally linked to sustainable development. The challenges of declining fish stocks, increasing market prices and the fierce competition presented by technology-based fishing techniques, present a persuasive case for context-appropriate education and training for Trinidad and Tobago small scale fisherfolk. Research was conducted to examine the training needs of these fisherfolk, as articulated by key industry stakeholders, including the fishers themselves; and to set these needs off against available training provisions. A reconciliation strategy for education and training was developed to respond to the needs of the industry as well as to the Caribbean priorities of sustainable development and fisheries management. Key words: small scale fisheries, sustainable development, training needs specification.

The Importance of Selected Individual Characteristics in Determining Market Prices for Fishers and Traders in Kenyan Small-Scale Fisheries

2015 ◽  
Vol 28 (9) ◽  
pp. 959-974 ◽  
Author(s):  
A. W. Wamukota ◽  
B. Crona ◽  
K. Osuka ◽  
Tim M. Daw
Keyword(s):  
Individual Characteristics ◽  
Small Scale ◽  
Market Prices ◽  
Small Scale Fisheries
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