Food and feeding habits of king weakfish, Macrodon ancylodon (Bloch & Schneider, 1801) caught in the southern coast of Brazil (lat, 29º to 32ºs)
Macrodon ancylodon was obtained from landings in Santos Port (São Paulo State) of fish caught monthly by commercial vessels, on the southern coast of Brazil during September 1976 to August 1977. The measurements of total lenght, total weight determination of sex and maturity stages were made. The fo...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Universidade de São Paulo
1985-01-01
|
| Series: | Brazilian Journal of Oceanography |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-87591985000200005 |
| _version_ | 1811266627917840384 |
|---|---|
| author | Anastácio Afonso Juras Noriyoshi Yamaguti |
| author_facet | Anastácio Afonso Juras Noriyoshi Yamaguti |
| author_sort | Anastácio Afonso Juras |
| collection | DOAJ |
| description | Macrodon ancylodon was obtained from landings in Santos Port (São Paulo State) of fish caught monthly by commercial vessels, on the southern coast of Brazil during September 1976 to August 1977. The measurements of total lenght, total weight determination of sex and maturity stages were made. The food items found in stomach contents were: shrimp (Artemesia longinaris), fishes (Paralonchurus brasiliensis, Macrodon ancylodon, Trichirus lepturus, Gadidae, Engraulidae), molluscs (Loliginidae, Bivalvia) and Stomatopoda. Widening of food spectrum was observed in winter. The index of preponderance showed that immature females, immature and mature males fed predominantly on shrimp, while mature females fed mainly on fishes. During spring and summer (spawning season) M. ancylodon exhibited relatively low percentage of full stomachs. Cannibalism was encountered more intensively for mature fish. |
| first_indexed | 2024-04-12T20:46:42Z |
| format | Article |
| id | doaj.art-1a6a321f077d4ad395f38af7a3c540be |
| institution | Directory Open Access Journal |
| issn | 1679-8759 1982-436X |
| language | English |
| last_indexed | 2024-04-12T20:46:42Z |
| publishDate | 1985-01-01 |
| publisher | Universidade de São Paulo |
| record_format | Article |
| series | Brazilian Journal of Oceanography |
| spelling | doaj.art-1a6a321f077d4ad395f38af7a3c540be2022-12-22T03:17:14ZengUniversidade de São PauloBrazilian Journal of Oceanography1679-87591982-436X1985-01-0133214915710.1590/S1679-87591985000200005Food and feeding habits of king weakfish, Macrodon ancylodon (Bloch & Schneider, 1801) caught in the southern coast of Brazil (lat, 29º to 32ºs)Anastácio Afonso JurasNoriyoshi YamagutiMacrodon ancylodon was obtained from landings in Santos Port (São Paulo State) of fish caught monthly by commercial vessels, on the southern coast of Brazil during September 1976 to August 1977. The measurements of total lenght, total weight determination of sex and maturity stages were made. The food items found in stomach contents were: shrimp (Artemesia longinaris), fishes (Paralonchurus brasiliensis, Macrodon ancylodon, Trichirus lepturus, Gadidae, Engraulidae), molluscs (Loliginidae, Bivalvia) and Stomatopoda. Widening of food spectrum was observed in winter. The index of preponderance showed that immature females, immature and mature males fed predominantly on shrimp, while mature females fed mainly on fishes. During spring and summer (spawning season) M. ancylodon exhibited relatively low percentage of full stomachs. Cannibalism was encountered more intensively for mature fish.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-87591985000200005AlimentaçãoHábitos alimentaresConteúdo estomacalItens alimentaresMacrodon ancylodonCosta sulFeedingFeeding behaviourStomach contentFood organismsMacrodon ancylodonSouthern coast |
| spellingShingle | Anastácio Afonso Juras Noriyoshi Yamaguti Food and feeding habits of king weakfish, Macrodon ancylodon (Bloch & Schneider, 1801) caught in the southern coast of Brazil (lat, 29º to 32ºs) Brazilian Journal of Oceanography Alimentação Hábitos alimentares Conteúdo estomacal Itens alimentares Macrodon ancylodon Costa sul Feeding Feeding behaviour Stomach content Food organisms Macrodon ancylodon Southern coast |
| title | Food and feeding habits of king weakfish, Macrodon ancylodon (Bloch & Schneider, 1801) caught in the southern coast of Brazil (lat, 29º to 32ºs) |
| title_full | Food and feeding habits of king weakfish, Macrodon ancylodon (Bloch & Schneider, 1801) caught in the southern coast of Brazil (lat, 29º to 32ºs) |
| title_fullStr | Food and feeding habits of king weakfish, Macrodon ancylodon (Bloch & Schneider, 1801) caught in the southern coast of Brazil (lat, 29º to 32ºs) |
| title_full_unstemmed | Food and feeding habits of king weakfish, Macrodon ancylodon (Bloch & Schneider, 1801) caught in the southern coast of Brazil (lat, 29º to 32ºs) |
| title_short | Food and feeding habits of king weakfish, Macrodon ancylodon (Bloch & Schneider, 1801) caught in the southern coast of Brazil (lat, 29º to 32ºs) |
| title_sort | food and feeding habits of king weakfish macrodon ancylodon bloch schneider 1801 caught in the southern coast of brazil lat 29º to 32ºs |
| topic | Alimentação Hábitos alimentares Conteúdo estomacal Itens alimentares Macrodon ancylodon Costa sul Feeding Feeding behaviour Stomach content Food organisms Macrodon ancylodon Southern coast |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-87591985000200005 |
| work_keys_str_mv | AT anastacioafonsojuras foodandfeedinghabitsofkingweakfishmacrodonancylodonblochschneider1801caughtinthesoutherncoastofbrazillat29oto32os AT noriyoshiyamaguti foodandfeedinghabitsofkingweakfishmacrodonancylodonblochschneider1801caughtinthesoutherncoastofbrazillat29oto32os |