Spatial and temporal trends in freshwater fish research: the case of three neotropical river basins from Goiás State, Central Brazil

Abstract Aim In this paper, we conducted a scientometric analysis on published studies related to freshwater fish species at Goiás State to evaluate: i) their spatial and temporal trends; ii) areas of knowledge; iii) scientific journals where these papers were published and their comprehensiveness; iv) the role of institutions and financial support on fish research. Methods Using Google Scholar and Lattes platform, we searched for scientific papers related to freshwater fish, and we extracted the following information of each paper: title, author and co-authors’ name, number of authors, year, authors and co-authors’ affiliation, journal, field/area of the research, and financial support. Results We found 322 scientific papers related to Goiás State with a slightly growth in the number of publications over time. Most of these papers are related to Ecology, Systematic/Taxonomy and Fish Biology, and the participation of local institutions in these studies was mainly concentrated in Paraná River basin. Although most of funding were granted by agencies or institutions located outside Goiás State, the results showed that fish papers achieved a broad audience with publications in national and international journals with impact factor. Conclusions Our study revealed that: 1) freshwater fish research at Goiás State has a slow increase trend; 2) there are gaps in Education, Conservation and Fisheries knowledge areas; 3) local institutions’ contribution is spatially concentrated; 4) studies achieved a broad audience with many scientific papers published in journals with impact factor; 5) financial support was granted in most part by agencies or institutions located outside Goiás State. These findings suggest that despite achievements in freshwater fish research in this region, local investments in infrastructure, materials and human resources are still necessary to improve the production of studies.摘要 研究目标 本文针对戈亚斯州（Goiás State）相关淡水鱼类物种的已发表研究开展科学计量分析，旨在评估四个方面：其一，相关研究的时空分布趋势；其二，现有研究领域；其三，刊载相关论文的学术期刊及其刊载覆盖面；其四，机构与经费支持在鱼类研究中的作用。 研究方法 本研究依托谷歌学术（Google Scholar）与Lattes平台（Lattes Platform），检索与淡水鱼类相关的学术论文，并提取每篇论文的如下信息：标题、作者及合著者姓名、作者总数量、发表年份、作者及合著者所属机构、刊载期刊、研究领域/方向以及经费支持情况。 研究结果 本研究共检索得到与戈亚斯州相关的淡水鱼类研究论文322篇，文献发表数量随时间呈现小幅增长趋势。其中绝大多数研究聚焦于生态学、系统分类学/分类学以及鱼类生物学领域；本地机构在这类研究中的参与主要集中在巴拉那河流域（Paraná River basin）。尽管多数研究经费由戈亚斯州以外的机构或资助机构提供，但研究结果显示，相关鱼类研究论文已获得广泛受众，发表于具备影响因子的国内外学术期刊。 研究结论 本研究揭示以下结论：1）戈亚斯州的淡水鱼类研究呈现缓慢增长态势；2）该领域在教育、保护以及渔业研究方向存在研究空白；3）本地机构的研究贡献存在空间集聚特征；4）相关研究已获得广泛影响力，多篇论文发表于具备影响因子的学术期刊；5）绝大多数研究经费由戈亚斯州以外的机构或资助机构提供。上述研究结果表明，尽管该区域的淡水鱼类研究已取得一定进展，但仍需加大本地在基础设施、研究材料以及人力资源方面的投入，以提升区域内相关研究的产出水平。