Results 71 to 80 of about 141 (105)

Notes on the Bull shark Carcharhinus leucas in the lagoon region of Cananéia, Brazil

open access: yesBrazilian Journal of Oceanography, 1971
Ninety one young specimens and 3 adult females of BulI shark ("cação cabeça chata") caught in the lagoon region of Cananéia were examined, their tooth formula being 27/25 and the number of pre-caudal vertebrae ranging from 109 to 115.
V Sadowsky
doaj   +1 more source

DISTRIBUIÇÃO GEOGRÁFICA DOS BAGRES MARINHOS (OSTEICHTHYES, ARIIDAE) NO COMPLEXO ESTUARINO LAGUNAR DE CANANÉIA (25º S 48º W)

open access: yesBoletim do Instituto de Pesca, 2018
Foram coletadas amostras durante o perí­­odo de abril de 1974 a novembro de 1975 utilizando-se 4 diferentes tipos de aparelhos de pesca: arrasto de porta (otter trawl), rede de espera (gill net), cerco fixo (fish trap) e tarrafa (casting-net).
Motoi MISHIMA, Shitiro TANJI
doaj  

Desembarque de peixes da pesca artesanal na Barra do Rio, Tijucas – SC, Brasil

open access: yesBiotemas, 2013
Com o objetivo de caracterizar e comparar os diferentes aspectos quantitativos e qualitativos da pesca artesanal, foram analisados os desembarques pesqueiros da comunidade de pescadores artesanais da Barra do Rio, em Tijucas-SC, de setembro de 2010 a ...
Daniel Ganzarolli Martins   +2 more
doaj   +1 more source

COMPRIMENTO PADRÃO EM RELAÇÃO AO PESO E AO COMPRIMENTO DA NADADEIRA PÉLVICA DOS BAGRES MARINHOS (OSTEICHTHYES, ARIIDAE) DO COMPLEXO ESTUARINO LAGUNAR DE CANANÉIA (25ºS, 48ºW)

open access: yesBoletim do Instituto de Pesca, 2018
Estuda-se a correlação entre o comprimento padrão / peso total e comprimento padrão/comprimento da nadadeira pélvica de 4 bagres marinhos (Osteichthyes, Ariidae) do complexo estuarino lagunar de Cananéia (25°S, 48°W): Arius spixii (Agassiz, 1829 ...
Motoi MISHIMA, Shitiro TANJI
doaj  

Accumulation and distribution of metals in the tissues of two catfish species from Cananéia and Santos-São Vicente estuaries

open access: yesBrazilian Journal of Oceanography, 2012
Pb, Cd, Zn, and Cu concentrations and their distribution in liver, gill, and muscle tissues of the catfish Cathorops spixii and Genidens genidens were investigated in order to provide information concerning the bioaccumulation processes in these species.
Juliana de Souza Azevedo   +2 more
doaj  

NICHO ALIMENTAR DE BAGRES MARINHOS (TELEÓSTEI, ARIIDAE) NO COMPLEXO ESTUARINO LAGUNAR DE CANANÉIA (25º S, 48º W)

open access: yesBoletim do Instituto de Pesca, 2018
Foi analisado o conteúdo estomacal das espécies Arius spixii (Agassiz, 1829), Genidens genidens (Valenciennes, 1839), Netuma barba (Lacépí­¨de, 1803), Sciadeichthys luniscutis Valenciennes, 1940), Bagre marinus (Mitchill, 1814) e Bagre bagre (Linnaeus ...
Motoi MISHIMA, Shitiro TANJI
doaj  

Plasma ion levels of freshwater and marine/estuarine teleosts from Southern Brazil

open access: yesNeotropical Ichthyology
The purpose of this study was to investigate Na+, Cl-, K+, Ca2+, and Mg2+ levels in the plasma of freshwater and marine/estuarine teleosts collected at different salinities (0 to 34) from the estuarine and freshwater portions of the São Gonçalo channel ...
Alexssandro Geferson Becker   +6 more
doaj   +1 more source

Plasma ion levels of freshwater and marine/estuarine teleosts from Southern Brazil

open access: yesNeotropical Ichthyology, 2011
The purpose of this study was to investigate Na+, Cl-, K+, Ca2+, and Mg2+ levels in the plasma of freshwater and marine/estuarine teleosts collected at different salinities (0 to 34) from the estuarine and freshwater portions of the São Gonçalo channel ...
Alexssandro Geferson Becker   +6 more
doaj  

First record of leucism in Genidens barbus (Siluriformes: Ariidae) of patagonian distribution

open access: yesAnales del Instituto de la Patagonia
Coloration in vertebrates is determined by the presence or absence of pigments, whose alteration may result in atypical conditions such as albinism, dilution, schizochromatism, and leucism. These anomalies usually originate from genetic mutations, influenced by environmental factors, exposure to pollutants, or artificial selection. Leucism is expressed
openaire   +1 more source

El bagre marino (Genidens barbus) en el estuario del río Chubut: Un nuevo registro en la costa Patagónica Argentina

open access: yesGayana
El bagre marino (Genidens barbus) es una especie anádroma de Sudamérica, que se distribuye desde Brasil hasta Argentina. Se considera vulnerable por su baja fecundidad e incubación oral en machos, que migran a los estuarios para reproducirse.
Aime I. Funes   +3 more
doaj  

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