ARC Centre of Excellence for Coral Reef Studies
James Cook University Townsville
Queensland 4811 Australia
Phone: 61 7 4781 4000
Email: info@coralcoe.org.au
João Paulo Krajewski is originally from Brazil, where he gained his BSc and MSc degrees at Universidade Estadual de Campinas (Unicamp). João has been studying reef fish behavior and ecology since 2002 and his main research interests are reef fish foraging and feeding associations. Currently he is a PhD candidate at Unicamp and is interested on the feeding of benthic carnivorous reef fishes. The aim of this study is to verify if there is a relationship between the feeding activity and distribution of benthic carnivorous fishes with the substratum composition. This research has been primarily conducted in Fernando de Noronha, a volcanic archipelago off Northeastern Brazil. Recently João has received a scholarship to spend one year at James Cook University, under the supervision of Prof. Geoffrey Jones, to analyze his data and write scientific articles related to his PhD.
Benthic carnivorous fishes are ubiquitous inhabitants of coral and rocky reefs. These fishes are well known for their critical influence on the structure and composition of habitat and fauna associated to reefs and soft sediments nearby reefs. As the activity (e.g. foraging, resting) of most benthic carnivorous reef fish species is highly related to the reef bottom, substratum composition may strongly influence several aspects of reef fish’s ecology and behavior. In my PhD research I explore the hypothesis that the activity and distribution of carnivorous fishes may be correlated to reef substratum composition. More specifically, I address the hypothesis that benthic carnivorous fishes will be more abundant on reefs where there is a higher relative abundance of their preferred foraging substratum. The study has been conducted at the Fernando de Noronha, a volcanic archipelago 350km off Northeastern Brazil. I have studied the foraging substratum selection, abundance and behavior of five abundant benthic carnivorous species at the study site as well as the substratum composition of several reefs on the archipelago. During this talk, I will present the results of my research to date, especially those related to reef fish foraging substratum selection. Further, I will discuss my expected outcomes for this research and present future research plans to the present study.
James Cook University researchers have found brightly coloured fish are becoming increasingly rare as coral declines, with the phenomenon likely to get worse in the future. Christopher Hemingson, a
Researchers working with stakeholders in the Great Barrier Reef region have come up with ideas on how groups responsible for looking after the reef can operate more effectively when the next bleaching
A new study has delivered a stark warning about the impacts of urban growth on the world’s coral reefs. As coastal developments expand at pace around the world, a year-long study of coral on a reef
Alarming new research shows global warming of 1.5°C relative to pre-industrial levels will be catastrophic for almost all coral reefs – including those once thought of as refuges. Associate Profes
Abstract: Molecular approaches have revolutionised our understanding of the systematics and evolution of most branches on the tree of life, including corals. Over the last twenty-five years molecula
Abstract: Outbreaks of crown-of-thorns starfish (COTS) are a major driver of coral decline across the Great Barrier Reef (GBR) and compound upon the impacts of increasingly frequent and severe coral
Abstract: Being a new staff member at JCU, I will start with a short overview of my research. Next I will zoom in on a specific topic that I have been interested in for a long time: the impact of e
Abstract: The harsh truth is that, despite exciting innovations and increases in activity, ocean conservation is not succeeding, at least not fast enough. This is my conclusion from the last decad
This talk is the last of the parachute science seminar series organized by the ARC CoE Justice, Equity, Diversity and Inclusion (JEDI) committee. Abstract Universities and institutions across th
This talk is the second of three on parachute science being organized by the ARC CoE Justice, Equity, Diversity and Inclusion (JEDI) committee. Abstract For millenia, Traditional Owners have hel
This talk is the first of three on parachute science being organized by the ARC CoE Justice, Equity, Diversity and Inclusion (JEDI) committee. Abstract Parachute science is the practice whereby
ABSTRACT Climate change loss and damage is known as the “third pillar” of international climate governance in addition to mitigation and adaptation. Although there is no agreed upon definition,
Partner Research Institutions
ARC Centre of Excellence for Coral Reef Studies
James Cook University Townsville
Queensland 4811 Australia
Phone: 61 7 4781 4000
Email: info@coralcoe.org.au
