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Biometric relationships between body size and otolith size in 15 demersal marine fish species from the northern Brazilian coast Acta Amazonica
OLIVEIRA,Rory Romero de Sena; ANDRADE,Marcelo Costa; MACHADO,Fabiola Seabra; CUNHA,Élida Jesana Santana; FREITAS,Flaviane Souto de; KLAUTAU,Alex Garcia Cavalleiro de Macedo; GIARRIZZO,Tommaso; SAINT-PAUL,Ulrich.
ABSTRACT The relationships between fish size and sagitta otolith measurements were calculated for the first time for 15 species belonging to six families from the northern Brazilian coast. A total of 220 fish were sampled from the bycatch landed by the bottom-trawl industrial shrimp-fishing fleet between August and September 2016. All species had strong relationships between otolith measurements and fish total length with the coefficient of determination (r 2) ranging between 0.71 and 0.99. The variable most strongly related to fish total length was found to be the sagittal otolith length (OL) with 98% of the variability. These relationships are a useful tool to estimate length and mass of preyed fish from otoliths found in stomach contents of marine...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazon delta; Bycatch; Sagitta; Neotropics; Sciaenidae; Stomach content.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672019000400299
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Desarrollo de la sagitta en juveniles y adultos de Odontesthes argentinensis (Valenciennes, 1835) y O. bonariensis (Valenciennes, 1835) de la provincia de Buenos Aires, Argentina (Teleostei: Atheriniformes) RChHN
TOMBARI,ANDREA D; VOLPEDO,ALEJANDRA V; ECHEVERRÍA,DINORAH D.
Se describió el desarrollo del otolito Sagitta de juveniles y adultos de Odontesthes argentinensis procedentes de Punta Rasa (36°22' S) y Miramar (38°16' S) y de Odontesthes bonariensis de la Laguna de Chascomús (35° 36' S). Se estudió, la morfología de las sagittae de ambas especies, analizando cuatro grupos morfológicos para O. argentinensis (I: 75-120 mm, II: 130-220 mm, III: 230-270 y IV: 280-320 mm) y tres grupos morfológicos para O. bonariensis (I: 80-120 mm, II: 130-220 y III: 230-320 mm). Las características morfológicas comunes a la sagitta, de ambas especies, en los grupos estudiados son: presencia de sulcus, depresión areal dorsal en la cara medial, cara lateral con estrías y la presencia de un punto culminante en el borde dorsal. En la sagitta...
Tipo: Journal article Palavras-chave: Morfología; Sagitta; Odontesthes; Atherinopsidae.
Ano: 2005 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2005000400003
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Morphological variations of the three otoliths of some species of the family Loricariidae (Ostariophysi: Siluriformes) Neotropical Ichthyology
Sánchez,Roberto Omar; Martínez,Virginia Haydee.
ABSTRACT Otoliths are three pairs of calcareous structures found in the inner ear of bony fish. In many cases they display a species-specific morphology. The present study describes morphological variations of otoliths, namely lapillus, asteriscus and sagitta, of eleven species belonging to four loricariid subfamilies. Otolith structures that characterize the Loricariidae and some of its subfamilies are presented. The sagitta exhibit a specific morphology that is not found in other siluriform families; it is claviform with a tapered posterior region and a flared anterior one. In the latter, central elevations are observed and the dorsal wings are continuous with lateral expansions named basal wings. Hypoptopomatinae and Loricariinae as well as Hypostominae...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Armored catfishes; Asteriscus; Lapillus; Morphology; Sagitta.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252017000100202
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