Food and feeding habits of king weakfish, Macrodon ancylodon (Bloch & Schneider, 1801) caught in the southern coast of Brazil (Lat. 29º to 32ºS)

Abstract

Synopsis Maenodon aneylodon 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 (Antem~ia longin~)~ fishes (Panalonehu~ b~ilien6~, Maenodon aneylodon, Tniehiu~ lept~, 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. aneylodon exhibited relatively low percentage of full stomachs. Cannibalism was encountered more intensively for mature fish.

Nematode parasites of Pescada Gó, Macrodon ancylodon Bloch and Schneider, 1801 (Osteichthyes, Sciaenidae), from Vila dos Pescadores, Bragança-PA, Brazil

“…However, female fishes apparently predated more intensely the intermediate hosts as observed by the significant higher values of the abundance and mean intensity of infection. In a study by Juras and Yamaguti (1985) the females presented higher values of relative frequency of stomach fullness compared to the males and immature specimens.…”

“…The high prevalence value (87.6%) indicated that the fish predated actively the intermediate invertebrate hosts. Juras and Yamaguti (1985) reported that the species consumed invertebrates actively through the year. The statistical data showed that the feeding preferences concerning the intermediate host were not different between males and females, and similar results were found by Piorski et al (2004).…”

Associações entre as biomassas de peixes Sciaenidae (Teleostei: Perciformes) e de camarões Penaeoidea (Decapoda: Dendrobranchiata) no litoral norte do Estado de São Paulo

“…Apesar de terem sido verificadas poucas correlações significativas, estudos de alimentação têm confirmado a importância de determinadas espécies de camarões para os Sciaenidae, como, por exemplo, de Artemesia longinaris para Macrodon ancylodon, Menticirrhus americanus (Juras & Yamaguti 1985, Capitoli et al 1994, Cynoscion guatucupa (Cazorla 1996), Umbrina canosai (Haimovici et al 1989) e Stellifer rastrifer (UP. Souza, dados não publicados); de Pleoticus muelleri para Umbrina canosai (Haimovici et al 1989) e de Xiphopenaeus kroyeri para Cynoscion virescens, Nebris microps (Rodrigues & Meira 1988) e Stellifer rastrifer (Camargo & Isaac 2004, U.P.…”

Temporary use of a coastal ecosystem by the fish, Pomadasys corvinaeformis (Perciformes: Haemulidae), at Guaratuba Bay, Brazil

“…ITequencyof occurrence (FO), defined as the proportion of stomachs that contained a given food item, and 2) proportional abundance (P), measured as the number of points covered by each item on a grid of points spaced 4 mm, divided by the total number of points occupied by the contents. Items were ranked using these two methods based on the Preponderance lndex (PI; Juras & Yamaguti, 1985):…”