Corals light the way to a healthy partnership
Corals know how to attract good company. New research finds that corals emit an enticing fluorescent green light that attracts the mobile microalgae, known as Symbiodinium, that are critical to the e
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
The widespread occurrence of hermaphroditism in teleosts has interested not only fish biologists, but also evolutionary ecologists and resource managers. Two hermaphroditic grouper species, the chocolate hind (Cephalopholis boenak) and the orange-spotted grouper (Epinephelus coioides) were studied in relation to their early gonad development. The former is the last remaining grouper of any abundance in Hong Kong waters; the later is the most common mariculture grouper in southern China. Both species are confirmed as diandric, where some individuals mature directly as male (primary males) and others first mature as female and then change sex to male at a later stage (secondary males). Unlike some other diandric, protogynous hermaphrodites where primary males have distinct male gonads prior to maturation, all juveniles passed through an ovarian phase then a bisexual phase prior to sexual differentiation and first sexual maturation. These findings improve our understanding of sexual ontogeny in groupers and demonstrate the importance of including early gonad examination in the diagnosis of hermaphroditism. Using a clearly defined set of diagnostic criteria, a re-examination of all primary literature was conducted to document the incidence of hermaphroditism among all teleost families. We are now using our improved understanding of the ecology, life history and social behaviour of groupers to assist with their conservation and management.
Corals know how to attract good company. New research finds that corals emit an enticing fluorescent green light that attracts the mobile microalgae, known as Symbiodinium, that are critical to the e
A study led by researchers at the ARC Centre of Excellence for Coral Reef Studies at James Cook University found fish become anxious and more cautious when water quality is degraded by sediment, an e
Queensland’s coastal shark numbers are continuing a 50-year decline, in sharp contradiction of suggestions of ‘exploding’ shark populations, according to an analysis of Queensland Shark Control
The future of the world’s coral reefs is uncertain, as the impact of global heating continues to escalate. However, according to a study published today in Nature Climate Change, the response of the
Who: Julian Cribb Where: JCU HY002, UQ CMS Meeting Room When: Monday 20 March 2006, 11.00am-12.00pm
The Lizard Island Doctoral Fellowships Program provides financial support for field-intensive coral reef research at Lizard Island Research Station on the Great Barrier Reef by outstanding PhD student
Who: Go Suzuki, Kyoto University Where: ARC Centre of Excellence Conference Room, James Cook University, Townsville with video link to Centre for Marine Studies, UQ, Brisbane When: 1.00pm Monday 23
Who: Lead by Meir Sussman Where: ARC Centre of Excellence Conference Room, JCU, Townsville with video link to Centre for Marine Studies, UQ, Brisbane When: 4.00pm, Thursday 26 April 2007
Dr. Frank Thomalla is a Research Fellow at the Stockholm Environment Institute (SEI) where he leads the Stockholm-based group of the “Risk, Livelihoods and Vulnerability Programme” and at the re
Dr Troy Day is a theoretical evolutionary ecologist at Queen’s University, Kingston, Canada (http://www.mast.queensu.ca/~tday/index.html). His primary research interests are in the evolution of in
Who: Lead by Dr Sophie Dove Where: Video link ARC Centre of Excellence Conference Room, JCU, Townsville and Centre for Marine Studies, UQ, Brisbane When: 4.00pm, Thursday 10 May 2007
Who: Lead by Professor Terry Hughes Where: Video link ARC Centre of Excellence Conference Room, JCU, Townsville and JCU Cairns, Room B1.108 When: 12.00pm, Monday 14 May 2007
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