458
12 Species Case Studies
For better management information is needed on a number of issues.
Biological and ecological studies of leopard coralgrouper from across its range,
•
particularly from the Indian Ocean, Philippines, Fiji, Japan and Indonesia to
evaluate the parameters already determined from eastern Australia (Table 12.2 ).
Verifi cation of whether leopard coralgrouper aggregations are targeted for the
•
live fi sh trade in Philippines, Indonesia and Fiji.
Data on species-specifi c abundance, catch and effort in the artisanal fi sheries of
•
the Pacifi c Islands to properly assess the population status of this species.
Knowledge of reproductive parameters and spawning behaviour of populations
•
outside Queensland, particularly where fi shing pressure is light, to properly
assess the impacts of fi shing leopard coralgrouper on the GBR.
As the most heavily fi shed reef predator on the GBR, further studies on the
•
impacts of lowered population densities of leopard coralgrouper on reef communities could provide important information for understanding ecosystem
effects of fi shing. Studies should include Western Australia to examine the high
population densities reported there.
A thorough understanding of the spawning dynamics of leopard coralgrouper on
•
the GBR such as: what factors control whether females use aggregations or not;
does size and age of females affect aggregation behaviour; what is the impact of
fi shing pressure on these factors and are there regional differences?
Monitoring of aggregations and of the impacts of spawning closures as part of
•
fi sheries management.
12.10 Lutjanus fulvus – Blacktail Snapper with Notes
on Other Species of Atlantic and Indo-Pacifi c
Snappers (Lutjanidae)
Yvonne Sadovy de Mitcheson, Patrick L. Colin, and Jiro Sakaue
School of Biological Sciences, The University of Hong Kong , Hong Kong , China
e-mail: yjsadovy@hku.hk
Coral Reef Research Foundation , PO Box 1765, Koror, Palau 96940
e-mail: crrf@palaunet.com
Southern Marine Laboratory , P.O. Box 1598 , Koror , Republic of Palau 96940
e-mail: bigrun2006@hotmail.co.jp
12.10.1 General
The blacktail snapper, Lutjanus fulvus (Forsskal), is a common Indo-west Pacifi c
reef fi sh occurring from the Red Sea to southeastern Oceania and ranges north to
south from Japan to New South Wales in Australia. It was successfully introduced
12 Species Case Studies
For better management information is needed on a number of issues.
Biological and ecological studies of leopard coralgrouper from across its range,
•
particularly from the Indian Ocean, Philippines, Fiji, Japan and Indonesia to
evaluate the parameters already determined from eastern Australia (Table 12.2 ).
Verifi cation of whether leopard coralgrouper aggregations are targeted for the
•
live fi sh trade in Philippines, Indonesia and Fiji.
Data on species-specifi c abundance, catch and effort in the artisanal fi sheries of
•
the Pacifi c Islands to properly assess the population status of this species.
Knowledge of reproductive parameters and spawning behaviour of populations
•
outside Queensland, particularly where fi shing pressure is light, to properly
assess the impacts of fi shing leopard coralgrouper on the GBR.
As the most heavily fi shed reef predator on the GBR, further studies on the
•
impacts of lowered population densities of leopard coralgrouper on reef communities could provide important information for understanding ecosystem
effects of fi shing. Studies should include Western Australia to examine the high
population densities reported there.
A thorough understanding of the spawning dynamics of leopard coralgrouper on
•
the GBR such as: what factors control whether females use aggregations or not;
does size and age of females affect aggregation behaviour; what is the impact of
fi shing pressure on these factors and are there regional differences?
Monitoring of aggregations and of the impacts of spawning closures as part of
•
fi sheries management.
12.10 Lutjanus fulvus – Blacktail Snapper with Notes
on Other Species of Atlantic and Indo-Pacifi c
Snappers (Lutjanidae)
Yvonne Sadovy de Mitcheson, Patrick L. Colin, and Jiro Sakaue
School of Biological Sciences, The University of Hong Kong , Hong Kong , China
e-mail: yjsadovy@hku.hk
Coral Reef Research Foundation , PO Box 1765, Koror, Palau 96940
e-mail: crrf@palaunet.com
Southern Marine Laboratory , P.O. Box 1598 , Koror , Republic of Palau 96940
e-mail: bigrun2006@hotmail.co.jp
12.10.1 General
The blacktail snapper, Lutjanus fulvus (Forsskal), is a common Indo-west Pacifi c
reef fi sh occurring from the Red Sea to southeastern Oceania and ranges north to
south from Japan to New South Wales in Australia. It was successfully introduced