scholarly journals Description of a daily fishing activity from a small-scale fisherman in Central Greece (Korinthiakos Gulf)

2014 ◽  
Vol 6 (2) ◽  
Author(s):  
Dimitrios K. Moutopoulos ◽  
Alexis Ramfos ◽  
Catherine Moukas ◽  
George Katselis
Keyword(s):  
Small Scale ◽  
Fishing Activity ◽  
Central Greece

scholarly journals Impact of mechanized clam dredging on the discarded megabenthic fauna on the Catalan coast (NW Mediterranean)

2021 ◽  
pp. 1-9
Author(s):  
Marc Baeta ◽  
Claudia Rubio ◽  
Françoise Breton
Keyword(s):  
Small Scale ◽  
Fishing Activity ◽  
Lethal Damage ◽  
Catalan Coast ◽  
Nw Mediterranean ◽  
Chamelea Gallina ◽  
Level Scale ◽  
Nw Mediterranean Sea ◽  
The Impact ◽  
Partial Damage

Abstract There is an important small-scale fishery using mechanized dredges and targeting clams (mainly wedge clam Donax trunculus and striped venus clam Chamelea gallina) along the Catalan coast (NW Mediterranean Sea). This study evaluated for the first time the discards and impact of mechanized clam dredging on the Catalan coast. To this end, three surveys were performed on board standard clam vessels (September and November 2016 and January 2017). Surveys were conducted in the three main clam fishing areas (Rosas Bay, South Barcelona and Ebro Delta). The composition of discards and the impact caused to discarded species was assessed using a three-level scale (undamaged; minor or partial damage; and lethal damage). Our study revealed that a large proportion of the catch (between 67–82% weight) is discarded. Even though about 63% of the discarded species were undamaged, 11% showed minor or partial damage and 26% lethal damage. Infaunal and epifaunal species with soft-body or fragile shells were the most impacted by the fishing activity (e.g. the sea urchin Echinocardium mediterraneum (~89%) and the bivalve Ensis minor (~74%)). Our results showed different levels of impact by target species and fishing area.

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 A new approach to assess marine opportunity costs and monetary values for spatial planning and conservation; the case study of Gulf of Naples, Mediterranean Sea, Italy

2018 ◽  
Author(s):  
Luca Appolloni
Keyword(s):  
Local Population ◽  
Small Scale ◽  
Conservation Priorities ◽  
Opportunity Costs ◽  
Tyrrhenian Sea ◽  
Economic Activities ◽  
Fishing Activity ◽  
Flexible Approach ◽  
Gulf Of Naples ◽  
Total Turnover

Conservation actions (as Marine Protected Areas) are key tools to maintain coastal ecosystems. However, many reserves are characterized by several problems related to inadequate zonings that preclude important areas from economic activities, determining a strong hostility by local populations. Thus, estimations of marine economic values-in-use are needed for protection of marine ecosystem in order to find the best compromise between conservation priorities and local population needs. Algorithms to estimate monetary values of the main human activities in marine territories (large scale and small scale fishings, aquaculture, beach resorts, yachting, diving and commercial shipping) are here implemented using Gulf of Naples (centre Tyrrhenian sea, Italy) as study area example. These algorithms are based on different sources data (questionnaires, monitoring activities, official local authority reports, web and scientific literature). They can also be compared with each other being their outputs all expressed in the same measure unit. During the models development process a new flexible approach, called “Systematic Costs Assessment” (SCA), to assess opportunity costs in systematic conservation planning process was developed and applied. Results show that the total turnover in the Gulf of Naples is 3,950,753,487 € per year and 747,647,887 € per year excluding small scale fishing estimation, and one hectare of marine territory is worth 40,672 € and 7,696 € per year excluding small scale fishing activity. In particular, excluding small scale fishing activity, beach resort and yachting show the highest values referred to one hectare of marine territories. In conclusion, SCA is a flexible approach where no long and costly sampling campaigns are always needed, provided that two assumptions have to be taken into account, in order to estimate credible values-in-use costs: i) do not use economic activities data and ecosystem services data in the same assessment layer, since it could lead to costs overestimation and ii) SCA method are efficient when used by operators with strong knowledge of the study area, since they are able to recognize parameters affecting economic activities of local population.

scholarly journals Impact of COVID-19 Lockdown on the Fisheries Sector: A Case Study from Three Harbors in Western India

2021 ◽  
Vol 13 (2) ◽  
pp. 183
Author(s):  
Ram Avtar ◽  
Deepak Singh ◽  
Deha Agus Umarhadi ◽  
Ali P. Yunus ◽  
Prakhar Misra ◽  
...  
Keyword(s):  
Global Economy ◽  
Emergency Situation ◽  
Support Vector ◽  
Small Scale ◽  
Western India ◽  
Western Coast ◽  
Land Area ◽  
Fishing Activity ◽  
South West Monsoon ◽  
The Impact

The COVID-19 related lockdowns have brought the planet to a standstill. It has severely shrunk the global economy in the year 2020, including India. The blue economy and especially the small-scale fisheries sector in India have dwindled due to disruptions in the fish catch, market, and supply chain. This research presents the applicability of satellite data to monitor the impact of COVID-19 related lockdown on the Indian fisheries sector. Three harbors namely Mangrol, Veraval, and Vankbara situated on the north-western coast of India were selected in this study based on characteristics like harbor’s age, administrative control, and availability of cloud-free satellite images. To analyze the impact of COVID in the fisheries sector, we utilized high-resolution PlanetScope data for monitoring and comparison of “area under fishing boats” during the pre-lockdown, lockdown, and post-lockdown phases. A support vector machine (SVM) classification algorithm was used to identify the area under the boats. The classification results were complemented with socio-economic data and ground-level information for understanding the impact of the pandemic on the three sites. During the peak of the lockdown, it was found that the “area under fishing boats” near the docks and those parked on the land area increased by 483%, 189%, and 826% at Mangrol, Veraval, and Vanakbara harbor, respectively. After phase-I of lockdown, the number of parked vessels decreased, yet those already moved out to the land area were not returned until the south-west monsoon was over. A quarter of the annual production is estimated to be lost at the three harbors due to lockdown. Our last observation (September 2020) result shows that regular fishing activity has already been re-established in all three locations. PlanetScope data with daily revisit time has a higher potential to be used in the future and can help policymakers in making informed decisions vis-à-vis the fishing industry during an emergency situation like COVID-19.

MARBLE SCULPTURES FROM PHTHIOTIS IN THE LAMIA ARCHAEOLOGICAL MUSEUM

2013 ◽  
Vol 108 ◽  
pp. 275-321
Author(s):  
Iphigeneia Leventi
Keyword(s):  
Formal Language ◽  
Eastern Mediterranean ◽  
Asia Minor ◽  
Small Scale ◽  
Hellenistic Period ◽  
Central Greece ◽  
Aegean Islands ◽  
Marble Sculptures ◽  
Eros And Psyche ◽  
Greek East

Marble statuettes, now in the Lamia Archaeological Museum, that date to the Classical and above all the Hellenistic periods, and a Hellenistic votive relief depicting Herakles are presented here. This study investigates the relations between the local workshop in central Greece which produced them and the major Classical and Hellenistic sculptural centres of Athens and of the Aegean islands, Asia Minor and the kingdoms of the Greek East generally. A marble statuette of a goddess which may represent Artemis from Melitaia, and a marble statuette of a seated girl of unknown provenance are dated to the Classical period. The subjects portrayed in the Late Hellenistic material show a typical repertory, marble statuettes of Aphrodite or Aphrodite-like figures, and a statuary group of Eros and Psyche in marble, unusual for this period. The ways in which the local sculptors of the Late Hellenistic period in the area of modern Phthiotis adopted the typological and stylistic trends current in the great cosmopolitan centres are a major concern here. In the Hellenistic period, the production of marble statuettes for making offerings at public and domestic sanctuaries and for decorating opulent villas was in vogue, and a common formal language was created especially for small-scale sculpture in the eastern Mediterranean and the new art markets of Italy. The vehicles by which these artistic influences were transmitted to the sculptural production of central Greece will also be investigated.

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 A bioeconomic multispecies analysis of an estuarine small-scale fishery: spatial structure of biovalue

2003 ◽  
Vol 60 (4) ◽  
pp. 721-732 ◽  
Author(s):  
Mario Rueda ◽  
Omar Defeo
Keyword(s):  
Risk Analysis ◽  
Monte Carlo Analysis ◽  
Fishing Effort ◽  
Indicator Kriging ◽  
Fish Abundance ◽  
Economic Losses ◽  
Small Scale ◽  
Fishing Activity ◽  
Spatial Allocation ◽  
Spatial Risk

Abstract We estimated the spatial population structure by size and the economical potential (biovalue) of a multispecies fish resource in an estuarine lagoon in Colombia, based on fishery-dependent (catch and effort) and independent (seasonal fishing surveys) data. Model-based (geostatistics, kriging) estimations of such performance variables were used to quantify the uncertainty in abundance, individual price by size and variable costs per haul. Monte Carlo analysis was used to assess the status of the fishery. The spatial dimension of risk analysis was explored by indicator kriging, whereas effects of biovalue on the spatial allocation of fishing effort were evaluated using contingency tables. Fish abundance, individual sizes and biovalue were spatially structured, but the spatial patterns varied between seasons and species. Analysis of biovalue showed a moderate risk that fishers had economic losses derived from the fishing activity. Spatial risk analysis showed that no more than 30% of the total area from the lagoon registered profitable levels of fish abundance, which affected the spatial allocation of fishing effort. Management implications supported by our study suggest seasonal and spatial fishing closures to protect juveniles and spawning stock of fish species.

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