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Agonistic behaviour in juvenile southern rock lobster, Jasusedwardsii (Decapoda, Palinuridae): implications for developing aquaculture.

Carter CG, Westbury H, Crear B, Simon C, Thomas C - Zookeys (2014)

Bottom Line: The occurrence of behavioural groups was not different between the morning and evening.The frequency of aggressive behaviours was not affected by changes made to stocking density or access to food.The implications of agonistic behaviours are discussed further in relation to developing aquaculture.

View Article: PubMed Central - HTML - PubMed

Affiliation: Institute for Marine and Antarctic Studies, University of Tasmania, Australia.

ABSTRACT
The Southern rock lobster, Jasusedwardsii, is a temperate species of spiny lobster with established well managed fisheries in Australia and New Zealand. It has also been under consideration as a species with aquaculture potential. Agonistic behaviour has important consequences under aquaculture conditions that encompass direct effects, such as damage or death of protagonists, and indirect effects on growth that relate to resource access, principally food and refuge. This study aimed to identify and characterize behaviours and to make a preliminary investigation of their occurrence under tank culture. Juvenile Jasusedwardsii were examined in a flow-through seawater system using a remote video camera system. Twenty-nine behaviours were divided into three sub-groups: aggressive (11), avoidance (6) and others (12). Aggressive behaviours included attacks, pushing, lifting, clasping and carrying an opponent. Avoidance behaviours included moving away in a backwards-, forwards- or side-stepping motion as well as with more vigorous tail flips. These behaviours were components of twelve behavioural groups that described contact, attack and displacement between individuals. Activity was crepuscular with two clear peaks, one in the morning and the other in the evening. The occurrence of behavioural groups was not different between the morning and evening. The frequency of aggressive behaviours was not affected by changes made to stocking density or access to food. The implications of agonistic behaviours are discussed further in relation to developing aquaculture.

No MeSH data available.


Related in: MedlinePlus

Selected aggressive behaviours of Jasusedwardsii: 1 attack 1 (low intensity) 2 clasp 3 rise 1 (low intensity) 4 rise 3 (high intensity).
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Figure 1: Selected aggressive behaviours of Jasusedwardsii: 1 attack 1 (low intensity) 2 clasp 3 rise 1 (low intensity) 4 rise 3 (high intensity).

Mentions: Twenty-nine component behaviours were identified and described; 11 aggressive and 6 avoidance (Table 1) as well as 12 others (Table 2). A selection of line drawings to represent aggressive (Figs 1–4), avoidance (Figs 5–8) and other (Figs 9–12) behaviours are presented.


Agonistic behaviour in juvenile southern rock lobster, Jasusedwardsii (Decapoda, Palinuridae): implications for developing aquaculture.

Carter CG, Westbury H, Crear B, Simon C, Thomas C - Zookeys (2014)

Selected aggressive behaviours of Jasusedwardsii: 1 attack 1 (low intensity) 2 clasp 3 rise 1 (low intensity) 4 rise 3 (high intensity).
© Copyright Policy - creative-commons-attribution
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4283379&req=5

Figure 1: Selected aggressive behaviours of Jasusedwardsii: 1 attack 1 (low intensity) 2 clasp 3 rise 1 (low intensity) 4 rise 3 (high intensity).
Mentions: Twenty-nine component behaviours were identified and described; 11 aggressive and 6 avoidance (Table 1) as well as 12 others (Table 2). A selection of line drawings to represent aggressive (Figs 1–4), avoidance (Figs 5–8) and other (Figs 9–12) behaviours are presented.

Bottom Line: The occurrence of behavioural groups was not different between the morning and evening.The frequency of aggressive behaviours was not affected by changes made to stocking density or access to food.The implications of agonistic behaviours are discussed further in relation to developing aquaculture.

View Article: PubMed Central - HTML - PubMed

Affiliation: Institute for Marine and Antarctic Studies, University of Tasmania, Australia.

ABSTRACT
The Southern rock lobster, Jasusedwardsii, is a temperate species of spiny lobster with established well managed fisheries in Australia and New Zealand. It has also been under consideration as a species with aquaculture potential. Agonistic behaviour has important consequences under aquaculture conditions that encompass direct effects, such as damage or death of protagonists, and indirect effects on growth that relate to resource access, principally food and refuge. This study aimed to identify and characterize behaviours and to make a preliminary investigation of their occurrence under tank culture. Juvenile Jasusedwardsii were examined in a flow-through seawater system using a remote video camera system. Twenty-nine behaviours were divided into three sub-groups: aggressive (11), avoidance (6) and others (12). Aggressive behaviours included attacks, pushing, lifting, clasping and carrying an opponent. Avoidance behaviours included moving away in a backwards-, forwards- or side-stepping motion as well as with more vigorous tail flips. These behaviours were components of twelve behavioural groups that described contact, attack and displacement between individuals. Activity was crepuscular with two clear peaks, one in the morning and the other in the evening. The occurrence of behavioural groups was not different between the morning and evening. The frequency of aggressive behaviours was not affected by changes made to stocking density or access to food. The implications of agonistic behaviours are discussed further in relation to developing aquaculture.

No MeSH data available.


Related in: MedlinePlus