Feed availability and its relationship to survival, growth, dominance and the agonistic behaviour of the southern rock lobster, Jasus edwardsii in captivity
The effect of feed availability (ration level and feeding frequency) on the culture performance of the juvenile (5–22 g) southern rock lobster Jasus edwardsii was examined to determine whether multiple daily feeding of a formulated feed would stimulate growth. Furthermore, the relationships between...
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| description | The effect of feed availability (ration level and feeding frequency) on the culture performance of the juvenile (5–22 g) southern rock lobster
Jasus edwardsii was examined to determine whether multiple daily feeding of a formulated feed would stimulate growth. Furthermore, the relationships between feed availability, agonistic behaviour, dominance, growth and survival were examined. A total of 252 lobsters (mean weight 5.26 g) were stocked into 28 black 52-l tanks at a density of nine lobsters per tank (42 m
−2) and maintained at a temperature of 18.8 °C in a recirculating seawater system for 119 days. Lobsters were fed with high (4% BW day
−1) or low (0.5% BW day
−1) rations divided between one, two or four meals per day. These regimes were compared to a regime of fresh mussels (
Mytilus edulis) fed to excess once per day. Feeding lobsters with a high-ration level, 4 day
−1, made no significant (
P>0.05) improvements in specific growth rate (SGR) (0.77–0.82% BW day
−1), survival (75–84%) or biomass yields (96–102 g) compared to feeding 1 or 2 day
−1. Low-ration-fed lobsters had a higher final mean weight (17.5–20.9 g) compared to high-ration lobsters (13.4–14.3 g), however, survival of lobsters that were fed with low ration of 4 day
−1 (41%) was significantly (
P |
| doi_str_mv | 10.1016/S0044-8486(01)00899-7 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_18542736</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0044848601008997</els_id><sourcerecordid>309837731</sourcerecordid><originalsourceid>FETCH-LOGICAL-c428t-a66e9dcfc7e1ce96ccf5ffaf62e581cb31a21745fee8f3169f5cdbad3ab3233</originalsourceid><addsrcrecordid>eNqFkcFu1DAQhiMEEkvhEZAsJFArbcCOYyc5IVTRAqrEodytiTPuTsnGi-2k6rvwsHh3K5A4wGkO_v6x_X9F8VLwt4IL_e6a87ou27rVp1yccd52Xdk8KlaibWSpdFU9Lla_kafFsxhvOedaK7Eqfl4gDgwWoBF6GindM5gGRimygCMk8lPc0I4lz-IcFlpgXLOb4O_SZs0Gv6UJJouHTNrkeeMnioks63EDC_k5MO8OR9HPeYSJBW-_s9H3MWFYsy8Q58hwuIMwRCJGE7OwS7TkpzwvnjgYI754mCfF9cXHb-efyquvl5_PP1yVtq7aVILW2A3W2QaFxU5b65Rz4HSFqhW2lwIq0dTKIbZOCt05ZYceBgm9rKQ8Kd4ct-6C_zFjTGZL0eI4woR-jka0qq4aqTN4-m8wV1q3XdPs0Vd_obe5iil_wlS81p1Sss2QOkI2-BgDOrMLtIVwbwQ3e7PmYNbstRkuzMGsaXLu9cNyiBZGF7ICin_CtVS1kiJz748c5u4WwmCiJcy6Bgpokxk8_eemX_64u-Q</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>204695538</pqid></control><display><type>article</type><title>Feed availability and its relationship to survival, growth, dominance and the agonistic behaviour of the southern rock lobster, Jasus edwardsii in captivity</title><source>Elsevier ScienceDirect Journals</source><creator>Thomas, C.W ; Carter, C.G ; Crear, B.J</creator><creatorcontrib>Thomas, C.W ; Carter, C.G ; Crear, B.J</creatorcontrib><description>The effect of feed availability (ration level and feeding frequency) on the culture performance of the juvenile (5–22 g) southern rock lobster
Jasus edwardsii was examined to determine whether multiple daily feeding of a formulated feed would stimulate growth. Furthermore, the relationships between feed availability, agonistic behaviour, dominance, growth and survival were examined. A total of 252 lobsters (mean weight 5.26 g) were stocked into 28 black 52-l tanks at a density of nine lobsters per tank (42 m
−2) and maintained at a temperature of 18.8 °C in a recirculating seawater system for 119 days. Lobsters were fed with high (4% BW day
−1) or low (0.5% BW day
−1) rations divided between one, two or four meals per day. These regimes were compared to a regime of fresh mussels (
Mytilus edulis) fed to excess once per day. Feeding lobsters with a high-ration level, 4 day
−1, made no significant (
P>0.05) improvements in specific growth rate (SGR) (0.77–0.82% BW day
−1), survival (75–84%) or biomass yields (96–102 g) compared to feeding 1 or 2 day
−1. Low-ration-fed lobsters had a higher final mean weight (17.5–20.9 g) compared to high-ration lobsters (13.4–14.3 g), however, survival of lobsters that were fed with low ration of 4 day
−1 (41%) was significantly (
P<0.05) lower than that of high-ration-fed lobsters (75–84%). The larger final mean weight of lobsters, fed with a low ration, was explained by the increased nutrient uptake from cannibalism. Significantly (
P<0.05) higher biomass yields were achieved by lobsters fed with fresh mussels once per day which was achieved through the combined effects of larger final mean weight (17.1 g) and improved survival (91%).
Lobsters were size-ranked (g) to determine the effects of feed competition on the growth and survival of individuals of different rank. The ability and/or motivation of the largest lobsters to maintain their size status increased as feed availability decreased, suggesting that feed restrictions increased the strength of dominance. Size-ranking also demonstrated that small lobsters were more vulnerable to being cannibalised, especially when the feed-ration level was low. Feed competition was consistent with the concept of economic defensibility, predicting that levels of agonistic behaviour are highest when a low ration was patterned into smaller, more easily defended meals (low-ration fed, 4 day
−1). In contrast, feed competition and agonistic behaviour were rarely observed when feed was freely available (high-ration fed, 4 day
−1). The high levels of cannibalism of small size-ranked lobsters meant that assessing growth depensation was not a useful approach to the evaluation of the relationships between competition and growth in groups. The implications for
J. edwardsii culture are that feeding high-ration levels of formulated feeds, more than once daily, reduces feed competition and incidence of agonistic behaviour. However, there appear to have few benefits in terms of growth or survival. The recommendation from this study is to feed lobsters once daily to excess after dusk.</description><identifier>ISSN: 0044-8486</identifier><identifier>EISSN: 1873-5622</identifier><identifier>DOI: 10.1016/S0044-8486(01)00899-7</identifier><identifier>CODEN: AQCLAL</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Agonistic behaviour ; Animal aquaculture ; Animal behavior ; Animal productions ; Aquaculture ; Biological and medical sciences ; Crustacea ; Feed availability ; Feed competition ; Food ; Fundamental and applied biological sciences. Psychology ; Growth ; Invertebrate aquaculture ; Jasus edwardsii ; Marine ; Physical growth ; Shellfish ; Survival</subject><ispartof>Aquaculture, 2003-01, Vol.215 (1), p.45-65</ispartof><rights>2003 Elsevier Science B.V.</rights><rights>2003 INIST-CNRS</rights><rights>Copyright Elsevier Sequoia S.A. Jan 10, 2003</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c428t-a66e9dcfc7e1ce96ccf5ffaf62e581cb31a21745fee8f3169f5cdbad3ab3233</citedby><cites>FETCH-LOGICAL-c428t-a66e9dcfc7e1ce96ccf5ffaf62e581cb31a21745fee8f3169f5cdbad3ab3233</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0044848601008997$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3536,27903,27904,65309</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=14354531$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Thomas, C.W</creatorcontrib><creatorcontrib>Carter, C.G</creatorcontrib><creatorcontrib>Crear, B.J</creatorcontrib><title>Feed availability and its relationship to survival, growth, dominance and the agonistic behaviour of the southern rock lobster, Jasus edwardsii in captivity</title><title>Aquaculture</title><description>The effect of feed availability (ration level and feeding frequency) on the culture performance of the juvenile (5–22 g) southern rock lobster
Jasus edwardsii was examined to determine whether multiple daily feeding of a formulated feed would stimulate growth. Furthermore, the relationships between feed availability, agonistic behaviour, dominance, growth and survival were examined. A total of 252 lobsters (mean weight 5.26 g) were stocked into 28 black 52-l tanks at a density of nine lobsters per tank (42 m
−2) and maintained at a temperature of 18.8 °C in a recirculating seawater system for 119 days. Lobsters were fed with high (4% BW day
−1) or low (0.5% BW day
−1) rations divided between one, two or four meals per day. These regimes were compared to a regime of fresh mussels (
Mytilus edulis) fed to excess once per day. Feeding lobsters with a high-ration level, 4 day
−1, made no significant (
P>0.05) improvements in specific growth rate (SGR) (0.77–0.82% BW day
−1), survival (75–84%) or biomass yields (96–102 g) compared to feeding 1 or 2 day
−1. Low-ration-fed lobsters had a higher final mean weight (17.5–20.9 g) compared to high-ration lobsters (13.4–14.3 g), however, survival of lobsters that were fed with low ration of 4 day
−1 (41%) was significantly (
P<0.05) lower than that of high-ration-fed lobsters (75–84%). The larger final mean weight of lobsters, fed with a low ration, was explained by the increased nutrient uptake from cannibalism. Significantly (
P<0.05) higher biomass yields were achieved by lobsters fed with fresh mussels once per day which was achieved through the combined effects of larger final mean weight (17.1 g) and improved survival (91%).
Lobsters were size-ranked (g) to determine the effects of feed competition on the growth and survival of individuals of different rank. The ability and/or motivation of the largest lobsters to maintain their size status increased as feed availability decreased, suggesting that feed restrictions increased the strength of dominance. Size-ranking also demonstrated that small lobsters were more vulnerable to being cannibalised, especially when the feed-ration level was low. Feed competition was consistent with the concept of economic defensibility, predicting that levels of agonistic behaviour are highest when a low ration was patterned into smaller, more easily defended meals (low-ration fed, 4 day
−1). In contrast, feed competition and agonistic behaviour were rarely observed when feed was freely available (high-ration fed, 4 day
−1). The high levels of cannibalism of small size-ranked lobsters meant that assessing growth depensation was not a useful approach to the evaluation of the relationships between competition and growth in groups. The implications for
J. edwardsii culture are that feeding high-ration levels of formulated feeds, more than once daily, reduces feed competition and incidence of agonistic behaviour. However, there appear to have few benefits in terms of growth or survival. The recommendation from this study is to feed lobsters once daily to excess after dusk.</description><subject>Agonistic behaviour</subject><subject>Animal aquaculture</subject><subject>Animal behavior</subject><subject>Animal productions</subject><subject>Aquaculture</subject><subject>Biological and medical sciences</subject><subject>Crustacea</subject><subject>Feed availability</subject><subject>Feed competition</subject><subject>Food</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Growth</subject><subject>Invertebrate aquaculture</subject><subject>Jasus edwardsii</subject><subject>Marine</subject><subject>Physical growth</subject><subject>Shellfish</subject><subject>Survival</subject><issn>0044-8486</issn><issn>1873-5622</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2003</creationdate><recordtype>article</recordtype><recordid>eNqFkcFu1DAQhiMEEkvhEZAsJFArbcCOYyc5IVTRAqrEodytiTPuTsnGi-2k6rvwsHh3K5A4wGkO_v6x_X9F8VLwt4IL_e6a87ou27rVp1yccd52Xdk8KlaibWSpdFU9Lla_kafFsxhvOedaK7Eqfl4gDgwWoBF6GindM5gGRimygCMk8lPc0I4lz-IcFlpgXLOb4O_SZs0Gv6UJJouHTNrkeeMnioks63EDC_k5MO8OR9HPeYSJBW-_s9H3MWFYsy8Q58hwuIMwRCJGE7OwS7TkpzwvnjgYI754mCfF9cXHb-efyquvl5_PP1yVtq7aVILW2A3W2QaFxU5b65Rz4HSFqhW2lwIq0dTKIbZOCt05ZYceBgm9rKQ8Kd4ct-6C_zFjTGZL0eI4woR-jka0qq4aqTN4-m8wV1q3XdPs0Vd_obe5iil_wlS81p1Sss2QOkI2-BgDOrMLtIVwbwQ3e7PmYNbstRkuzMGsaXLu9cNyiBZGF7ICin_CtVS1kiJz748c5u4WwmCiJcy6Bgpokxk8_eemX_64u-Q</recordid><startdate>20030110</startdate><enddate>20030110</enddate><creator>Thomas, C.W</creator><creator>Carter, C.G</creator><creator>Crear, B.J</creator><general>Elsevier B.V</general><general>Elsevier Science</general><general>Elsevier Sequoia S.A</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QL</scope><scope>7QR</scope><scope>7ST</scope><scope>7TN</scope><scope>7U7</scope><scope>7U9</scope><scope>8FD</scope><scope>C1K</scope><scope>F1W</scope><scope>FR3</scope><scope>H94</scope><scope>H95</scope><scope>H98</scope><scope>H99</scope><scope>L.F</scope><scope>L.G</scope><scope>M7N</scope><scope>P64</scope><scope>SOI</scope></search><sort><creationdate>20030110</creationdate><title>Feed availability and its relationship to survival, growth, dominance and the agonistic behaviour of the southern rock lobster, Jasus edwardsii in captivity</title><author>Thomas, C.W ; Carter, C.G ; Crear, B.J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c428t-a66e9dcfc7e1ce96ccf5ffaf62e581cb31a21745fee8f3169f5cdbad3ab3233</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2003</creationdate><topic>Agonistic behaviour</topic><topic>Animal aquaculture</topic><topic>Animal behavior</topic><topic>Animal productions</topic><topic>Aquaculture</topic><topic>Biological and medical sciences</topic><topic>Crustacea</topic><topic>Feed availability</topic><topic>Feed competition</topic><topic>Food</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Growth</topic><topic>Invertebrate aquaculture</topic><topic>Jasus edwardsii</topic><topic>Marine</topic><topic>Physical growth</topic><topic>Shellfish</topic><topic>Survival</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Thomas, C.W</creatorcontrib><creatorcontrib>Carter, C.G</creatorcontrib><creatorcontrib>Crear, B.J</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Chemoreception Abstracts</collection><collection>Environment Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Virology and AIDS Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Aquaculture Abstracts</collection><collection>ASFA: Marine Biotechnology Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Marine Biotechnology Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environment Abstracts</collection><jtitle>Aquaculture</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Thomas, C.W</au><au>Carter, C.G</au><au>Crear, B.J</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Feed availability and its relationship to survival, growth, dominance and the agonistic behaviour of the southern rock lobster, Jasus edwardsii in captivity</atitle><jtitle>Aquaculture</jtitle><date>2003-01-10</date><risdate>2003</risdate><volume>215</volume><issue>1</issue><spage>45</spage><epage>65</epage><pages>45-65</pages><issn>0044-8486</issn><eissn>1873-5622</eissn><coden>AQCLAL</coden><abstract>The effect of feed availability (ration level and feeding frequency) on the culture performance of the juvenile (5–22 g) southern rock lobster
Jasus edwardsii was examined to determine whether multiple daily feeding of a formulated feed would stimulate growth. Furthermore, the relationships between feed availability, agonistic behaviour, dominance, growth and survival were examined. A total of 252 lobsters (mean weight 5.26 g) were stocked into 28 black 52-l tanks at a density of nine lobsters per tank (42 m
−2) and maintained at a temperature of 18.8 °C in a recirculating seawater system for 119 days. Lobsters were fed with high (4% BW day
−1) or low (0.5% BW day
−1) rations divided between one, two or four meals per day. These regimes were compared to a regime of fresh mussels (
Mytilus edulis) fed to excess once per day. Feeding lobsters with a high-ration level, 4 day
−1, made no significant (
P>0.05) improvements in specific growth rate (SGR) (0.77–0.82% BW day
−1), survival (75–84%) or biomass yields (96–102 g) compared to feeding 1 or 2 day
−1. Low-ration-fed lobsters had a higher final mean weight (17.5–20.9 g) compared to high-ration lobsters (13.4–14.3 g), however, survival of lobsters that were fed with low ration of 4 day
−1 (41%) was significantly (
P<0.05) lower than that of high-ration-fed lobsters (75–84%). The larger final mean weight of lobsters, fed with a low ration, was explained by the increased nutrient uptake from cannibalism. Significantly (
P<0.05) higher biomass yields were achieved by lobsters fed with fresh mussels once per day which was achieved through the combined effects of larger final mean weight (17.1 g) and improved survival (91%).
Lobsters were size-ranked (g) to determine the effects of feed competition on the growth and survival of individuals of different rank. The ability and/or motivation of the largest lobsters to maintain their size status increased as feed availability decreased, suggesting that feed restrictions increased the strength of dominance. Size-ranking also demonstrated that small lobsters were more vulnerable to being cannibalised, especially when the feed-ration level was low. Feed competition was consistent with the concept of economic defensibility, predicting that levels of agonistic behaviour are highest when a low ration was patterned into smaller, more easily defended meals (low-ration fed, 4 day
−1). In contrast, feed competition and agonistic behaviour were rarely observed when feed was freely available (high-ration fed, 4 day
−1). The high levels of cannibalism of small size-ranked lobsters meant that assessing growth depensation was not a useful approach to the evaluation of the relationships between competition and growth in groups. The implications for
J. edwardsii culture are that feeding high-ration levels of formulated feeds, more than once daily, reduces feed competition and incidence of agonistic behaviour. However, there appear to have few benefits in terms of growth or survival. The recommendation from this study is to feed lobsters once daily to excess after dusk.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/S0044-8486(01)00899-7</doi><tpages>21</tpages></addata></record> |
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| ispartof | Aquaculture, 2003-01, Vol.215 (1), p.45-65 |
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| source | Elsevier ScienceDirect Journals |
| subjects | Agonistic behaviour Animal aquaculture Animal behavior Animal productions Aquaculture Biological and medical sciences Crustacea Feed availability Feed competition Food Fundamental and applied biological sciences. Psychology Growth Invertebrate aquaculture Jasus edwardsii Marine Physical growth Shellfish Survival |
| title | Feed availability and its relationship to survival, growth, dominance and the agonistic behaviour of the southern rock lobster, Jasus edwardsii in captivity |
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