Spatial and temporal variation in krill consumption by the Antarctic fish Notothenia coriiceps, in Admiralty Bay, King George Island
An index of integrated food preferences (IFA) of Notothenia coriiceps Richardson at two sites in Admiralty Bay (Ipanema and Smok Point), calculated for two sequential summers, showed that during 1998/99, the most important food item was Euphausia superba (krill) at both Ipanema (IFA = 0.83) and Smok...
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| Veröffentlicht in: | Antarctic science 2003-12, Vol.15 (4), p.458-462 |
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| creator | FANTA, EDITH RIOS, FLAVIA SANT'ANNA DONATTI, LUCÉLIA CARDOSO, WAGNER ELIAS |
| description | An index of integrated food preferences (IFA) of Notothenia coriiceps Richardson at two sites in Admiralty Bay (Ipanema and Smok Point), calculated for two sequential summers, showed that during 1998/99, the most important food item was Euphausia superba (krill) at both Ipanema (IFA = 0.83) and Smok Point (IFA = 0.75), while the sum of all other food items was significantly smaller (IFA respectively 0.21 and 0.26). Macroalgae, gammarid amphipods and gastropods dominated the diet in the summer 1999/00 (IFA respectively 0.32, 0.32 and 0.21), at Ipanema, while macroalgae were dominant at Smok (IFA = 0.67), where krill and amphipods were secondary prey (IFA respectively 0.12 and 0.14) and gastropods were absent. Thus, the diet composition of N. coriiceps can possibly be used as an indicator of the presence of pelagic krill swarms. |
| doi_str_mv | 10.1017/S0954102003001561 |
| format | Article |
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Macroalgae, gammarid amphipods and gastropods dominated the diet in the summer 1999/00 (IFA respectively 0.32, 0.32 and 0.21), at Ipanema, while macroalgae were dominant at Smok (IFA = 0.67), where krill and amphipods were secondary prey (IFA respectively 0.12 and 0.14) and gastropods were absent. 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Macroalgae, gammarid amphipods and gastropods dominated the diet in the summer 1999/00 (IFA respectively 0.32, 0.32 and 0.21), at Ipanema, while macroalgae were dominant at Smok (IFA = 0.67), where krill and amphipods were secondary prey (IFA respectively 0.12 and 0.14) and gastropods were absent. Thus, the diet composition of N. coriiceps can possibly be used as an indicator of the presence of pelagic krill swarms.</description><subject>Algae</subject><subject>Euphausia superba</subject><subject>Food</subject><subject>Marine</subject><subject>Notothenia coriiceps</subject><issn>0954-1020</issn><issn>1365-2079</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2003</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNp1kTFPwzAQhS0EEqXwA9gsBqYG7MSxk7FUUCoQDIU5cmyndUniYDtI2fnhuLQSEojJ8rvvvbvTAXCO0RVGmF0vUZ4SjGKEEoRwSvEBGOGEplGMWH4IRttytK0fgxPnNoGJsxSNwOey417zGvJWQq-aztjw-eBWB9m0ULfwzeq6hsK0rm-6b7EcoF8rOG09t8JrASvt1vDJeBPkVvMAW62F6txkGzCVjQ6pfoA3fJjAB92u4FwZu1Jw4erQ-BQcVbx26mz_jsHr3e3L7D56fJ4vZtPHSCQk9RHLK4QxZnEsCSnTPKxWqoxWktFSScJIlomwJuK5EBmLOSVIMslLShJVSkGTMbjc5XbWvPfK-aLRTqg6zKBM7wqcIcoIzQN48QvcmN62YbYixglO0hizAOEdJKxxzqqq6KxuuB0KjIrtUYo_RwmeZO_hTWm1XKmf5P9dX6e_jrU</recordid><startdate>20031201</startdate><enddate>20031201</enddate><creator>FANTA, EDITH</creator><creator>RIOS, FLAVIA SANT'ANNA</creator><creator>DONATTI, LUCÉLIA</creator><creator>CARDOSO, WAGNER ELIAS</creator><general>Cambridge University Press</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QG</scope><scope>7SN</scope><scope>7SS</scope><scope>7T7</scope><scope>7TG</scope><scope>7TN</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>FR3</scope><scope>H95</scope><scope>H96</scope><scope>HCIFZ</scope><scope>KL.</scope><scope>L.G</scope><scope>L6V</scope><scope>M7N</scope><scope>M7S</scope><scope>P64</scope><scope>PCBAR</scope><scope>PHGZM</scope><scope>PHGZT</scope><scope>PKEHL</scope><scope>PQEST</scope><scope>PQGLB</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope></search><sort><creationdate>20031201</creationdate><title>Spatial and temporal variation in krill consumption by the Antarctic fish Notothenia coriiceps, in Admiralty Bay, King George Island</title><author>FANTA, EDITH ; 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| subjects | Algae Euphausia superba Food Marine Notothenia coriiceps |
| title | Spatial and temporal variation in krill consumption by the Antarctic fish Notothenia coriiceps, in Admiralty Bay, King George Island |
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