scholarly journals Collaborative Research on Dusky Grouper (Epinephelus marginatus): Catches from the Small-Scale Fishery of Copacabana Beach, Rio De Janeiro, Brazil

2016 ◽  
Vol 19 (2) ◽  
Author(s):  
Alpina Begossi ◽  
Svetlana Salivonchyk
Keyword(s):  
Collaborative Research ◽  
Rio De Janeiro ◽  
Small Scale ◽  
Dusky Grouper

scholarly journals Integrating science and citizen science: the dusky grouper (Epinephelus marginatus) sustainable fishery of Copacabana, Rio de Janeiro, Brazil

2019 ◽  
Author(s):  
Alpina Begossi ◽  
Svetlana V. Salivonchyk
Keyword(s):  
Citizen Science ◽  
Rio De Janeiro ◽  
Local Ecological Knowledge ◽  
Management Training ◽  
Small Scale ◽  
Ecological Knowledge ◽  
Small Scale Fisheries ◽  
Significant Difference ◽  
Dusky Grouper ◽  
Sustainable Fishery

AbstractWe followed landings of dusky grouper, Epinephelus marginatus, from 2013 to 2019. We observed 1,896 individuals of dusky grouper, Epinephelus marginatus, in Copacabana, Rio de Janeiro, from September 2013 to February 2019. The total weight of the catches was 6,065.57 kg, with an average of 1,442.50 kg/year and a std of 147.30 kg.We integrated fishers in our study through citizen science (CS): individuals were trained to monitor grouper gonads and supplied information on fishing spots and prices. After comparing catch curves (based on weight) and curve prices (in the Brazilian monetary currency of reals), our results showed that catches in the Copacabana fishery have been stable (the results of the Kruskal-Wallis test showed no significant difference for either the weight of the catches or the average prices of dusky groupers in the years compared). Copacabana has been a sustainable fishery when considering its catches of dusky grouper. This is a very important result for conservation and management, considering the importance of small-scale fisheries in terms of their low fishing efforts and their possible effects on vulnerable species, as well as their ecological and economic importance in developing countries. Citizen science, alomng with local ecological knowledge, helps integrate research and fisheries as well as researchers and fishers and allows for larger sampling efforts and management training for fishers.

scholarly journals Fishers and groupers (Epinephelus marginatus and E. morio) in the coast of Brazil: integrating information for conservation

2019 ◽  
Vol 15 (1) ◽  
Author(s):  
Alpina Begossi ◽  
Svetlana Salyvonchyk ◽  
Branko Glamuzina ◽  
Shirley Pacheco de Souza ◽  
Priscila F. M. Lopes ◽  
...  
Keyword(s):  
Local Knowledge ◽  
Rio De Janeiro ◽  
Local Ecological Knowledge ◽  
Sao Paulo ◽  
Northeastern Brazil ◽  
Small Scale ◽  
Ecological Knowledge ◽  
São Paulo ◽  
Red Grouper ◽  
Dusky Grouper

Abstract Background Groupers are a vulnerable but economically important group of fish, especially for small-scale fisheries. We investigated catches and local ecological knowledge (LEK) of diet, habitat, and past fishing experiences. Methods Landings, prices, interviews, and restaurants demand for two species, Epinephelus marginatus (dusky grouper) and Epinephelus morio (red grouper), were registered. Results We visited 74 markets and 79 sites on the coast of Brazil in 2017–2018, and we interviewed 71 fishers: Bahia (NE), Rio de Janeiro and São Paulo (SE), and Santa Catarina (S). The landings sampled of dusky grouper (2016–2017) in Rio de Janeiro were: n = 222, size 38–109 cm, weight 1–24 kg, average 3.84 kg; in São Paulo, São Sebastião were: n = 47, size 39–106 cm, weight 2–8 kg, average of 2.77 kg; and at Santos: n = 80, 26–120 cm, weight 0.36–15 kg, average 2.72 kg. Red grouper was observed in markets in the northeastern Brazil. We did not observe Epinephelus marginatus from Bahia northward; a maximum size of 200 cm was reported south of the Bahia, besides Rio de Janeiro and São Paulo coasts, 20 years ago (or longer) by 12 fishers. Local knowledge of fishers was important for grouper data of habitat and diet; the reproduction period was identified by fishers as September to March. Conclusions Groupers can be considered as a cultural and ecological keystone species. We suggest protective measures: 1) fishing zoning, 2) islands (MPAs) with the surveillance of fishers, 3) late Spring and early Summer as key periods for management (grouper reproduction), 4) studies on grouper larvae, 5) mapping of fishing spots, 6) studies on local knowledge. Collaboration with small-scale fishers and local knowledge could contribute to low-conflict management measures. In that regard, integrative models of management from Latin America, by using local knowledge and citizen science, could produce successful grouper management for Brazilian data-poor fisheries, a contrasting reality to the Mediterranean areas. Finally, the distribution of E. marginatus in Brazil leave us with questions: a) Have dusky groupers disappeared from Bahia because of a decline in the population? b) Was it uncommon in Northeast Brazil? c) Did changes in water temperatures forced a movement southward?

Enterprise Modelling in Support of the Application of Lean Manufacturing in SMEs

2007 ◽  
Vol 18-19 ◽  
pp. 359-364
Author(s):  
J.O. Ajaefobi ◽  
R.H. Weston
Keyword(s):  
Lean Manufacturing ◽  
Collaborative Research ◽  
Business Performance ◽  
Small Scale ◽  
Manufacturing Enterprises ◽  
Enterprise Models ◽  
Change Projects ◽  
Modelling Techniques ◽  
Support Decision Making ◽  
Organisation Design

Over more than two decades the authors and their research colleagues have investigated different ways of using enterprise, simulation and workflow modelling techniques to structure and support decision making during organisation design and change projects. This has involved collaborative research with large and small scale manufacturing enterprises [1]. The investigations have demonstrated and advanced the potential to use enterprise models that ‘externalise and share knowledge about enterprise processes and systems’. By so doing, enhanced understanding of enterprise structures, processes and resource systems can be obtained and used to improve the interactions between system components so as to realise desired business performance and constrain unwanted behaviours.

scholarly journals The spatial distribution of Aedes aegypti and Aedes albopictus in a transition zone, Rio de Janeiro, Brazil

2009 ◽  
Vol 25 (6) ◽  
pp. 1203-1214 ◽  
Author(s):  
Nildimar Alves Honório ◽  
Márcia Gonçalves Castro ◽  
Fábio Saito Monteiro de Barros ◽  
Mônica de Avelar Figueiredo Mafra Magalhães ◽  
Paulo Chagastelles Sabroza
Keyword(s):  
Aedes Aegypti ◽  
Transition Zone ◽  
Rio De Janeiro ◽  
Urban Forest ◽  
Viral Disease ◽  
Vegetation Coverage ◽  
Small Scale ◽  
Wet Season ◽  
Forested Areas ◽  
Vector Borne

Dengue fever has become the most important vector-borne viral disease in Brazil. Human facilitated transport of desiccation-resistant eggs has led to its two most important vectors, Aedes aegypti and Ae. albopictus, becoming widespread. In this paper, we report seasonal and spatial variation in larval abundances of Ae. aegypti and Ae. albopictus across a small-scale transition zone between an urban area and an urban wooded/forested area within Rio de Janeiro, Brazil. We installed 400 ovitraps across 10 sites with different human population densities and vegetation coverage. Eggs and larvae were collected for three weeks during the wet and dry seasons of 2002 and 2003. Ae. albopictus was predominantly found in the forested areas of the study site whereas in the urbanized area Ae. aegypti was more abundant. Both species peaked during the wet season. This distribution pattern, which may reflect adult flight range, may favor the co-occurrence of larvae of these species in a small-scale urban/urban forest transition zone.

scholarly journals Aspectos etnoecológicos e implicações para a conservação de Tursiops truncatus (Cetartiodactyla: Delphinidae) no Arquipélago das Cagarras, Rio de Janeiro, Brasil

2013 ◽  
Vol 13 ◽  
Author(s):  
Liliane Lodi ◽  
Camilah Antunes Zappes ◽  
Álvaro Samuel Guimarães dos Santos
Keyword(s):  
Tursiops Truncatus ◽  
Rio De Janeiro ◽  
Anthropogenic Impacts ◽  
Participant Observation ◽  
Bottlenose Dolphins ◽  
Morphological Characteristics ◽  
Small Scale ◽  
Common Bottlenose Dolphin ◽  
Significant Difference ◽  
The Common

The objectives of this study were to understand the ecological aspects of the common bottlenose dolphin (Tursiops truncatus) in the Cagarras Archipelago, Rio de Janeiro, Brazil, and possible anthropogenic impacts by comparing the knowledge of local small-scale fishermen (GA) and the regulars in the archipelago (GB). The data obtained were compared with those available in the literature to propose strategies for monitoring and preservation. Between August and December 2010, we applied the methods of participant observation, interviews-questionnaires and use of illustrative posters. Sixty-one interviews were conducted, from which 83.6% were selected by considering correct answers about the identification of the species on posters (morphological characteristics) and description of time of occurrence in the archipelago (July to December) as reported for the species in the literature. Regarding the seven questions analyzed statistically, a significant difference was found between the accounts of the two groups with respect to anthropic threats to T. truncatus. Gill-nets and the decrease of fishing resources were the main causes identified by the GA group whereas the GB group pointed to the disorganized use of space, pollution and predatory fishing as the factors that have threatened the common bottlenose dolphins. The use of ethnobiological data in conservation programs brings opportunities for the collaboration and participation of the community that is directly inserted into the ecosystem as well as a chance for locals to get involved in issues concerning the sustainability of the archipelago.

scholarly journals Using complementary visual approaches to investigate residency, site fidelity and movement patterns of the dusky grouper (Epinephelus marginatus) in a Mediterranean marine protected area

2021 ◽  
Vol 168 (7) ◽  
Author(s):  
Elena Desiderà ◽  
Egidio Trainito ◽  
Augusto Navone ◽  
Rémi Blandin ◽  
Luana Magnani ◽  
...  
Keyword(s):  
Protected Area ◽  
Site Fidelity ◽  
Marine Protected Area ◽  
Small Scale ◽  
Underwater Visual Census ◽  
Entire Area ◽  
Photo Identification ◽  
Dusky Grouper ◽  
Spatio Temporal ◽  
Study Sites

AbstractAssessing individuals’ abundance, residency (presence at a site within a certain period) and site fidelity (tendency to return to the same site in subsequent seasons or years) is crucial for evaluating and improving the effectiveness of spatial conservation/management measures regarding ecologically and socio-economically valuable species. Using underwater visual census (UVC) and photo-identification (photo-ID) techniques, we estimated the abundance, residency and site fidelity of the dusky grouper, Epinephelus marginatus, at two protected sites within the Tavolara-Punta Coda Cavallo Marine Protected Area (Sardinia, Italy) in the summers of 2017–2018. The scope and spatio-temporal resolution of the study was extended by involving volunteer recreational divers in the photo collection. Grouper mean densities varied significantly across sampling dates, with a significant variability between the 2 years and the two investigated sites. At least 94 grouper visited the study sites in the summers of 2017–2018 based on the analysis of 968 high-quality photos using a semi-automated software to photo-identify individuals. Overall, the most frequently sighted grouper was recorded on 32 different days and 21 individuals (22%) identified in 2017 were re-sighted in 2018. The participation of volunteer recreational divers helped detect the inter-site (3.5–4 km apart) movements of a female and a male, supporting previous findings regarding the occurrence of reproduction-related movements. This study provides novel insights into the residency and site-fidelity patterns of the dusky grouper, and its small-scale movements probably related to reproduction. Specifically, we provide indications that effective protection from fishing should encompass the entire area used by grouper for reproductive movements.

scholarly journals Lógica politécnica versus fisiocracia agreste: conflitos em torno da gestão ambiental num ecossistema no litoral fluminense

2006 ◽  
Vol 8 (1) ◽  
pp. 9
Author(s):  
Marco Antonio Da Silva Mello ◽  
Arno Vogel
Keyword(s):  
Rio De Janeiro ◽  
Small Scale ◽  
Regional Environment ◽  
Sand Bars ◽  
The Social ◽  
Urban Engineering ◽  
Xix Century ◽  
Relationship Of ◽  
The Relationship ◽  
The City

Este artigo busca descrever e analisar a atividade da pesca artesanal no município de Maricá (RJ), para chegar, finalmente, à discussão dos impactos socioambientais da expansão da Região Metropolitana do Rio de Janeiro sobre suas lagunas e restingas. O registro da evolução histórica da paisagem de Maricá, a partir da literatura dos viajantes – naturalistas e geógrafos–, desde o século XIX, constitui, juntamente com uma ampla discussão da natureza, dinâmica e perspectivas dos ambientes lacustres fluminenses, o cerne da proposta para uma etnografia de seu manejo, pelas comunidades de pescadores e pela engenharia sanitária e urbana, com suas distintas, conflitantes e concorrentes concepções dos mecanismos de seu funcionamento (estagnação versus circulação); nesse caso, analisa-se a relação do conjunto de lagunas como mar, ou seja, a questão das barras oceânicas permanentes versus barras oceânicas sazonais. Palavras-chave: comunidades pesqueiras; pesca lacustre; manejo de ecossistemas lacustres. Abstract: The article describes and analyzes small-scale non-industrial fishing in the city of Maricá. The final aim of this study is to discuss the social and environmental impact of Greater Metropolitan Rio de Janeiro on the Maricá region’s lagoons and saltmarshes. Registering the historical evolution of Maricá’s landscape, using literature written by traveling naturalists and geographers since the XIX Century, constitutes, together with an ample discussion of the nature, dynamics and perspectives of Fluminense lagoon environments, the core proposal of this ethnographical research is how a regional environment is handled by fishermen as well as sanitary and urban engineering with its distinct, conflicting and competing conceptions of operational mechanics (stagnation versus circulation) in this case, specifically, the relationship of the group of lagoons to the sea is analyzed, i.e., the problem of permanent oceanic bars versus seasonal sand bars. Keywords: fishing communities; lagoon fishery; lacustrine ecosystems handling.

Student teachers’ collaborative research: Small-scale research projects during teacher education

2012 ◽  
Vol 28 (4) ◽  
pp. 609-617 ◽  
Author(s):  
Marjolein Dobber ◽  
Sanne F. Akkerman ◽  
Nico Verloop ◽  
Jan D. Vermunt
Keyword(s):  
Teacher Education ◽  
Student Teachers ◽  
Collaborative Research ◽  
Small Scale ◽  
Research Projects

Small-Scale Submerged Breakwater Testing to Protect a Rio De Janeiro Beach

2021 ◽  
Author(s):  
Guilherme Amado Machado ◽  
Jean Marcel Faria Novo ◽  
Celso Romanel
Keyword(s):  
Rio De Janeiro ◽  
Small Scale ◽  
Submerged Breakwater

scholarly journals Construção colaborativa de uma sequência didática: estratégias facilitadoras para a prática docente de professores de matemática

2021 ◽  
Vol 5 (1) ◽  
pp. 48-71
Author(s):  
Iara Da Silva Sucupira ◽  
Giselle Faur de Castro Catarino
Keyword(s):  
Data Collection ◽  
Collaborative Research ◽  
Rio De Janeiro ◽  
Textual Analysis ◽  
Teaching Practice ◽  
State Institution ◽  
Teaching Mathematics ◽  
Pedagogical Practice ◽  
Collaborative Construction ◽  
Janeiro City

Resumo: Este artigo apresenta uma pesquisa que trata da contribuição da sequência didática como estratégia facilitadora para o ensino de matemática a partir de uma perspectiva colaborativa envolvendo quatro professores de uma instituição estadual do Rio de Janeiro. Nosso referencial teórico se baseou em Tardif, Shulman e Zabala. A busca por possibilidades de colaboração com a prática docente e o beneficiamento da aprendizagem dos alunos foram os principais objetivos que procuramos alcançar. Os instrumentos para coleta de dados foram mediados por entrevistas e questionários. Os dados foram analisados por Análise Textual Discursiva. Neste artigo, apresentamos as análises de um dos participantes. Os resultados e a construção colaborativa de uma sequência didática mostraram-se positivos para contribuir como estratégias facilitadoras à prática pedagógica desenvolvida pelos professores, assim como possibilitaram questionamentos e discussões sobre o tema trabalhado, projetando anseios e desafios que envolvem o fazer docente.Palavras-chave: Prática docente; Sequência didática; Análise textual discursiva. Collaborative construction of a didactic sequence: facilitating strategies for the teaching practice of teachers of mathematicsAbstract: This article presents research that deals with the contribution of the didactic sequence as a facilitating strategy for teaching mathematics, based on a collaborative research involving four teachers from a state institution in Rio de Janeiro city. Our theoretical reference was based on Tardif, Shulman and Zabala. The search for possibilities of collaboration with the teaching practice and the improvement of student learning were the main objectives that we seek to achieve. The instruments for data collection were interviews and questionnaires and the data were analyzed from Discursive Textual Analysis. Let us, in this article, present the analyses of one of the subjects. The results and the collaborative construction of a didactic sequence proved to be positive to contribute as facilitating strategies for the pedagogical practice developed by the teachers, as well as allowing questions and discussions on the theme worked, projecting concerns and challenges that involve teaching.Keywords: Teaching practice; Didactic sequence; Discursive textual analysis. 

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