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Desarrollo larval de Mursia gaudichaudi (Milne Edwards 1837) (Decapoda, Brachyura, Calappidae) Gayana
Gallardo,María de los A; Mujica,Armando.
Se describe el desarrollo larval de Mursia gaudichaudi basado en las zoeas I y II cultivadas en laboratorio y las zoeas I a la IV obtenidas de muestras planctónicas. Las larvas cultivadas en laboratorio, se obtuvieron de hembras ovígeras capturadas en la costa de Coquimbo, norte de Chile. Las características morfológicas y morfométricas de éstas permitieron identifcar las larvas capturadas con redes de plancton en la zona de Caldera y Coquimbo, durante la primavera de 2005. Las espínulas en la región proximal de la espina rostral, las de las espinas laterales del cefalotórax, los procesos espinosos de la antena y la longitud e inserción de las espinas laterales del abdomen, son las principales características morfológicas y morfométricas que permiten...
Tipo: Journal article Palavras-chave: Brachyura; Calappidae; Coquimbo; Zoea.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382010000100007
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Development and functional morphology of the larval foregut of two brachyuran species from Northern Brazil Anais da ABC (AABC)
Abrunhosa,Fernando A.; Simith,Darlan J.B.; Monteiro,Joely R.C.; Souza Junior,Antonio N. de; Oliva,Pedro A.C..
Feeding is an important factor for the successful rearing of larvae of the crab species. Further information on the morphological features of the foregut may to reveal larval feeding behaviour and or/whether there is a lecithotrophy in some or even in all stages of the larval cycle. In the present study, the structural development of the foregut and their digestive functions were examined in larvae of two brachyurans, Uca vocator and Panopeus occidentalis, reared in the laboratory. During larval development, the foreguts of the larvae in the first and last zoeal stages and in the megalopa stage were microscopically examined, described and illustrated. The zoeal foreguts of both species were well developed, showing specialization with a functional...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Digestive system; Megalopa; Panopeus occidentalis; Stomach; T/ca vocator; Zoea.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000400014
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Morphology of the first zoeal stages of five species of the portunid genus Callinectes (Decapoda, Brachyura) hatched at the laboratory Anais da ABC (AABC)
MANTELATTO,FERNANDO L.; REIGADA,ÁLVARO L.D.; GATTI,ALINE C.R.; CUESTA,JOSÉ A..
The genus Callinectes Stimpson, 1860 currently consists of 16 species, six of which are reported in Brazilian coast. In the present study, the first zoeal stages of Callinectes bocourti,C. danae, C. exasperatus, C. ornatus and C. sapidus from Brazil were obtained from ovigerous females. The morphological and meristic characters of all these larval stages are described and illustrated. Those of C. bocourti, C. danae and C. sapidus are redescribed and compared with the previous descriptions, and differences are listed. Larval characters of these species were examined for interspecific differences, as well as larval features to distinguish the genus Callinectes within Portunidae. In addition, other portunid genera and species with a known first zoeal stage...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Larval morphology; Portunidae; Portunoidea; Zoea.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000200755
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O efeito da salinidade no desenvolvimento larval do caranguejo - uçá, Ucides cordatus (Linnaeus, 1763) (Decapoda: Ocypodidae) no Norte do Brasil Acta Amazonica
Simith,Darlan de Jesus de Brito; Diele,Karen.
O presente trabalho estudou o efeito da salinidade na sobrevivência e na duração do desenvolvimento larval do caranguejo-uçá, Ucides cordatus (do estuário do Rio Caeté, Norte do Brasil), até a fase de megalopa em sete tratamentos de salinidade (0, 5, 10, 15, 20, 25 e 30). A salinidade afetou significativamente a sobrevivência das larvas zoea, no entanto não afetou a duração do desenvolvimento larval (20,77 ± 1,56 dias). Nas salinidades 0, 5 e 10 houve total mortalidade das larvas zoea. Somente a partir da salinidade 15 observou-se um desenvolvimento completo até a fase de megalopa. A taxa de sobrevivência foi maior em salinidade 30 (72%) e menor em 15 (16%). A reduzida taxa de sobrevivência das larvas zoea de U. cordatus, em salinidades baixas, indica a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ucides cordatus; Salinidade; Sobrevivência; Dispersão larval; Zoea.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672008000200019
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Spatial and temporal distribution of brachyuran crab larvae in Ibiraquera Lagoon, southern Brazil ArchiMer
Brandão, Manoela; Stumpf, Liane; Macedo-soares, Luis; Freire, Andrea.
This study investigated the abundance and composition of brachyuran crab larvae in the four subsystems of Ibiraquera Lagoon throughout the year. A colder and drier period was detected, contrasting with warm months during which salinity varied depending on rainfall and whether the sand bar was open or closed. The mean density of brachyuran zoeae was 540 ± 96 (SE) larvae · 100 m-3. Mean density was significantly (p<0.05) higher in three subsystems during April. Saco Lagoon (the outer subsystem) exhibited significantly higher (p<0.05) mean density in July, August, October, November and December 2004. Larvae from the families Portunidae, Menippidae, Panopeidae, Ocypodidae and Varunidae were found in Ibiraquera Lagoon. Neohelice granulata Dana, 1851 was...
Tipo: Text Palavras-chave: Decapoda larvae; Brachyura; Zoea; Estuary.
Ano: 2011 URL: https://archimer.ifremer.fr/doc/00597/70923/69163.pdf
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The species of Hippolyte Leach (Crustacea, Caridea, Hippolytidae) from Terminos Lagoon, southwestern Gulf of Mexico Zoologia
Negreiros-Fransozo,M.L; Barba,E; Sanchez,A.J; Fransozo,A; Ráz-Guzmán,A.
The taxonomic identity of specimens of the genus Hippolyte Leach, 1814 of Laguna de Términos was considered including the colour and the presence-absence of tufts of plumose setae on the dorsal surface of the carapace and abdomen as secondary characteristics to morphological features of taxonomic value. Two groups were formed based on appearance: one transparent with setae and another green without setae. The analysis of five morphological characteristics in adult females of the two groups made it possible to identify only H. zostericola (Smith, 1873). Fecundity and fertility were similar (0.5>p>0.2) in both groups. The first zoea of both groups were also morphologically similar. Considering these results, it is concluded that the only species...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hippolyte; Zoea; Fertility; Fecundity; SW Gulf of Mexico.
Ano: 1996 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300002
Registros recuperados: 6
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