The Effect of Feed Frequency on Growth, Survival and Behaviour of Juvenile Spiny Lobster (<i>Panulirus ornatus</i>)
Spiny lobsters have a range of complex chemical communication pathways that contribute to feeding behaviour. Feed intake is modulated by feed availability and feed characteristics, such as attractiveness and palatability, with behavioural factors, such as social competition and circadian rhythm, pro...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-08-01
|
| Series: | Animals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-2615/12/17/2241 |
| _version_ | 1797496699237695488 |
|---|---|
| author | Katarzyna Kropielnicka-Kruk Quinn P. Fitzgibbon Basseer M. Codabaccus Andrew J. Trotter Dean R. Giosio Chris G. Carter Gregory G. Smith |
| author_facet | Katarzyna Kropielnicka-Kruk Quinn P. Fitzgibbon Basseer M. Codabaccus Andrew J. Trotter Dean R. Giosio Chris G. Carter Gregory G. Smith |
| author_sort | Katarzyna Kropielnicka-Kruk |
| collection | DOAJ |
| description | Spiny lobsters have a range of complex chemical communication pathways that contribute to feeding behaviour. Feed intake is modulated by feed availability and feed characteristics, such as attractiveness and palatability, with behavioural factors, such as social competition and circadian rhythm, providing an extra layer of complexity. In this study, we investigated the effect of feed frequency on survival and growth of early-stage (instar 2–6) juvenile <i>Palunirus ornatus</i>. In addition, we investigated the interactive effect of feed frequency and circadian rhythm on lobster feed response. Lobsters were fed a set ration at a frequency of either one, two, four, eight, sixteen or thirty-two times per day over 49 days. The effect of feed frequency on growth and survival was determined. Circadian feeding activity under these feeding treatments was assessed by time-lapse photography. Increased feed frequency from one to sixteen feeds daily improved growth by increasing apparent feed intake (AFI) and feed attraction, as confirmed by the increased presence of lobsters in the feeding area. The rapid leaching of feed attractant, particularly free amino acid, suggests a beneficial effect of multiple feeding frequencies on feed intake and growth. However, more than sixteen feeds per day resulted in decreased feed intake and a subsequent reduction in growth. The decrease in feed intake is thought to be associated with saturation of the culture environment with attractants, resulting in a reduced behavioural response to feed supplies. This may indicate the need for depletion of attractants to retrigger a feeding response. As lobsters were grown communally, faster growth at sixteen rations per day was also coupled with increased cannibalism, likely driven by increased vulnerability with the occurrence of more frequent ecdysis events. Whereas circadian rhythm indicated more activity at night, an interaction between daytime activity and feed frequency was not observed. |
| first_indexed | 2024-03-10T03:07:19Z |
| format | Article |
| id | doaj.art-268c69663d5e4e009c6fa6c411c029d7 |
| institution | Directory Open Access Journal |
| issn | 2076-2615 |
| language | English |
| last_indexed | 2024-03-10T03:07:19Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Animals |
| spelling | doaj.art-268c69663d5e4e009c6fa6c411c029d72023-11-23T12:37:36ZengMDPI AGAnimals2076-26152022-08-011217224110.3390/ani12172241The Effect of Feed Frequency on Growth, Survival and Behaviour of Juvenile Spiny Lobster (<i>Panulirus ornatus</i>)Katarzyna Kropielnicka-Kruk0Quinn P. Fitzgibbon1Basseer M. Codabaccus2Andrew J. Trotter3Dean R. Giosio4Chris G. Carter5Gregory G. Smith6Institute for Marine & Antarctic Studies (IMAS), University of Tasmania, Private Bag 49, Hobart, TAS 7001, AustraliaInstitute for Marine & Antarctic Studies (IMAS), University of Tasmania, Private Bag 49, Hobart, TAS 7001, AustraliaInstitute for Marine & Antarctic Studies (IMAS), University of Tasmania, Private Bag 49, Hobart, TAS 7001, AustraliaInstitute for Marine & Antarctic Studies (IMAS), University of Tasmania, Private Bag 49, Hobart, TAS 7001, AustraliaInstitute for Marine & Antarctic Studies (IMAS), University of Tasmania, Private Bag 49, Hobart, TAS 7001, AustraliaInstitute for Marine & Antarctic Studies (IMAS), University of Tasmania, Private Bag 49, Hobart, TAS 7001, AustraliaInstitute for Marine & Antarctic Studies (IMAS), University of Tasmania, Private Bag 49, Hobart, TAS 7001, AustraliaSpiny lobsters have a range of complex chemical communication pathways that contribute to feeding behaviour. Feed intake is modulated by feed availability and feed characteristics, such as attractiveness and palatability, with behavioural factors, such as social competition and circadian rhythm, providing an extra layer of complexity. In this study, we investigated the effect of feed frequency on survival and growth of early-stage (instar 2–6) juvenile <i>Palunirus ornatus</i>. In addition, we investigated the interactive effect of feed frequency and circadian rhythm on lobster feed response. Lobsters were fed a set ration at a frequency of either one, two, four, eight, sixteen or thirty-two times per day over 49 days. The effect of feed frequency on growth and survival was determined. Circadian feeding activity under these feeding treatments was assessed by time-lapse photography. Increased feed frequency from one to sixteen feeds daily improved growth by increasing apparent feed intake (AFI) and feed attraction, as confirmed by the increased presence of lobsters in the feeding area. The rapid leaching of feed attractant, particularly free amino acid, suggests a beneficial effect of multiple feeding frequencies on feed intake and growth. However, more than sixteen feeds per day resulted in decreased feed intake and a subsequent reduction in growth. The decrease in feed intake is thought to be associated with saturation of the culture environment with attractants, resulting in a reduced behavioural response to feed supplies. This may indicate the need for depletion of attractants to retrigger a feeding response. As lobsters were grown communally, faster growth at sixteen rations per day was also coupled with increased cannibalism, likely driven by increased vulnerability with the occurrence of more frequent ecdysis events. Whereas circadian rhythm indicated more activity at night, an interaction between daytime activity and feed frequency was not observed.https://www.mdpi.com/2076-2615/12/17/2241aquaculturecrustaceanbehaviourcannibalismnutritiontropical rock lobster |
| spellingShingle | Katarzyna Kropielnicka-Kruk Quinn P. Fitzgibbon Basseer M. Codabaccus Andrew J. Trotter Dean R. Giosio Chris G. Carter Gregory G. Smith The Effect of Feed Frequency on Growth, Survival and Behaviour of Juvenile Spiny Lobster (<i>Panulirus ornatus</i>) Animals aquaculture crustacean behaviour cannibalism nutrition tropical rock lobster |
| title | The Effect of Feed Frequency on Growth, Survival and Behaviour of Juvenile Spiny Lobster (<i>Panulirus ornatus</i>) |
| title_full | The Effect of Feed Frequency on Growth, Survival and Behaviour of Juvenile Spiny Lobster (<i>Panulirus ornatus</i>) |
| title_fullStr | The Effect of Feed Frequency on Growth, Survival and Behaviour of Juvenile Spiny Lobster (<i>Panulirus ornatus</i>) |
| title_full_unstemmed | The Effect of Feed Frequency on Growth, Survival and Behaviour of Juvenile Spiny Lobster (<i>Panulirus ornatus</i>) |
| title_short | The Effect of Feed Frequency on Growth, Survival and Behaviour of Juvenile Spiny Lobster (<i>Panulirus ornatus</i>) |
| title_sort | effect of feed frequency on growth survival and behaviour of juvenile spiny lobster i panulirus ornatus i |
| topic | aquaculture crustacean behaviour cannibalism nutrition tropical rock lobster |
| url | https://www.mdpi.com/2076-2615/12/17/2241 |
| work_keys_str_mv | AT katarzynakropielnickakruk theeffectoffeedfrequencyongrowthsurvivalandbehaviourofjuvenilespinylobsteripanulirusornatusi AT quinnpfitzgibbon theeffectoffeedfrequencyongrowthsurvivalandbehaviourofjuvenilespinylobsteripanulirusornatusi AT basseermcodabaccus theeffectoffeedfrequencyongrowthsurvivalandbehaviourofjuvenilespinylobsteripanulirusornatusi AT andrewjtrotter theeffectoffeedfrequencyongrowthsurvivalandbehaviourofjuvenilespinylobsteripanulirusornatusi AT deanrgiosio theeffectoffeedfrequencyongrowthsurvivalandbehaviourofjuvenilespinylobsteripanulirusornatusi AT chrisgcarter theeffectoffeedfrequencyongrowthsurvivalandbehaviourofjuvenilespinylobsteripanulirusornatusi AT gregorygsmith theeffectoffeedfrequencyongrowthsurvivalandbehaviourofjuvenilespinylobsteripanulirusornatusi AT katarzynakropielnickakruk effectoffeedfrequencyongrowthsurvivalandbehaviourofjuvenilespinylobsteripanulirusornatusi AT quinnpfitzgibbon effectoffeedfrequencyongrowthsurvivalandbehaviourofjuvenilespinylobsteripanulirusornatusi AT basseermcodabaccus effectoffeedfrequencyongrowthsurvivalandbehaviourofjuvenilespinylobsteripanulirusornatusi AT andrewjtrotter effectoffeedfrequencyongrowthsurvivalandbehaviourofjuvenilespinylobsteripanulirusornatusi AT deanrgiosio effectoffeedfrequencyongrowthsurvivalandbehaviourofjuvenilespinylobsteripanulirusornatusi AT chrisgcarter effectoffeedfrequencyongrowthsurvivalandbehaviourofjuvenilespinylobsteripanulirusornatusi AT gregorygsmith effectoffeedfrequencyongrowthsurvivalandbehaviourofjuvenilespinylobsteripanulirusornatusi |