Fig. 4.

Collaboration networks between major contributors of catfish research from 1975 until 2022 based on Web of Science Core Collection, Science Citation Index Expanded through the Google Earth 3D software with (A) America Continent, (B) Europe and African Continent, (C) Asia Continent and (D) Oceania Continent. The white line showing the connection and collaboration research between countries and institutions, where thickness level indicates higher number of collaborative networks between continent.