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Registro Completo |
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
01/04/2011 |
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Data da última atualização: |
04/04/2011 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SOUZA, R. V. de; SILVA, U. A. T.; OSTRENSKY, A.; COTTENS, K. F. |
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Afiliação: |
Epagri |
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Título: |
Intraspecific relationship in the mangrove crab Ucides cordatus (Decapoda: Ocypodidae) during the metamorphosis and post-metamorphosis periods under laboratory conditions. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Zoologia, Curitiba, v. 28, p. 1-7, 2011. |
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Idioma: |
Inglês |
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Notas: |
ISSN, 1984-4670 |
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Conteúdo: |
Current efforts for restocking natural populations of the mangrove crab Ucides cordatus (Linnaeus, 1763) in Brazil have focused on developing a methodology for stimulating the metamorphosis of U. cordatus larvae at a large scale. The aim of the present study was to compare the mortality rates both in individual and mass conditions, during the induction of metamorphosis of megalopa to juvenile in U. cordatus, without the use of mangrove ediment as substrate. Furthermore, the importance of intraspecific antagonistic behavior on survivorship rates during early post-metamorphosis period was investigated. Metamorphosis was induced by the use of water conditioned with conspecific adults (30 indiv. 100 L-1 for 24 hours). In the first assay, megalopae were stimulated into metamorphosis in experimental vials, both under individual and mass rearing conditions. The second assay assessed the interactions between megalopae and first instar juveniles, which have metamorphosed for more than 24 hours. In the third assay, the existence of cannibalistic behavior among first instar juveniles under different experimental densities was investigated. Significant differences between survivorship rates of individuals that metamorphosed under individual and mass rearing conditions were detected. However no cannibalistic behavior between juveniles and megalopae was observed in the second assay. Juveniles reared at a density of 200 indiv.m-2 showed survivorship rates similar to those obtained under individual conditions. Yet 500 juveniles.m-2 treatments showed significantly lower survivorship rates. Intraspecific interactions appear to be an important problem in U. cordatus specifically during the metamorphosis, but not during larval and post-larval rearing. MenosCurrent efforts for restocking natural populations of the mangrove crab Ucides cordatus (Linnaeus, 1763) in Brazil have focused on developing a methodology for stimulating the metamorphosis of U. cordatus larvae at a large scale. The aim of the present study was to compare the mortality rates both in individual and mass conditions, during the induction of metamorphosis of megalopa to juvenile in U. cordatus, without the use of mangrove ediment as substrate. Furthermore, the importance of intraspecific antagonistic behavior on survivorship rates during early post-metamorphosis period was investigated. Metamorphosis was induced by the use of water conditioned with conspecific adults (30 indiv. 100 L-1 for 24 hours). In the first assay, megalopae were stimulated into metamorphosis in experimental vials, both under individual and mass rearing conditions. The second assay assessed the interactions between megalopae and first instar juveniles, which have metamorphosed for more than 24 hours. In the third assay, the existence of cannibalistic behavior among first instar juveniles under different experimental densities was investigated. Significant differences between survivorship rates of individuals that metamorphosed under individual and mass rearing conditions were detected. However no cannibalistic behavior between juveniles and megalopae was observed in the second assay. Juveniles reared at a density of 200 indiv.m-2 showed survivorship rates similar to those obtained under ... Mostrar Tudo |
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Palavras-Chave: |
Canibalismo. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02252naa a2200145 a 4500
001 1075312
005 2011-04-04
008 2011 bl uuuu u00u1 u #d
100 1 $aEpagri
245 $aIntraspecific relationship in the mangrove crab Ucides cordatus (Decapoda$bOcypodidae) during the metamorphosis and post-metamorphosis periods under laboratory conditions.
260 $c2011
500 $aISSN, 1984-4670
520 $aCurrent efforts for restocking natural populations of the mangrove crab Ucides cordatus (Linnaeus, 1763) in Brazil have focused on developing a methodology for stimulating the metamorphosis of U. cordatus larvae at a large scale. The aim of the present study was to compare the mortality rates both in individual and mass conditions, during the induction of metamorphosis of megalopa to juvenile in U. cordatus, without the use of mangrove ediment as substrate. Furthermore, the importance of intraspecific antagonistic behavior on survivorship rates during early post-metamorphosis period was investigated. Metamorphosis was induced by the use of water conditioned with conspecific adults (30 indiv. 100 L-1 for 24 hours). In the first assay, megalopae were stimulated into metamorphosis in experimental vials, both under individual and mass rearing conditions. The second assay assessed the interactions between megalopae and first instar juveniles, which have metamorphosed for more than 24 hours. In the third assay, the existence of cannibalistic behavior among first instar juveniles under different experimental densities was investigated. Significant differences between survivorship rates of individuals that metamorphosed under individual and mass rearing conditions were detected. However no cannibalistic behavior between juveniles and megalopae was observed in the second assay. Juveniles reared at a density of 200 indiv.m-2 showed survivorship rates similar to those obtained under individual conditions. Yet 500 juveniles.m-2 treatments showed significantly lower survivorship rates. Intraspecific interactions appear to be an important problem in U. cordatus specifically during the metamorphosis, but not during larval and post-larval rearing.
653 $aCanibalismo
773 $tZoologia, Curitiba$gv. 28, p. 1-7, 2011.
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Epagri-Sede (Epagri-Sede) |
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 | Acesso ao texto completo restrito à biblioteca da Epagri-Sede. Para informações adicionais entre em contato com biblio@epagri.sc.gov.br. |
Registro Completo
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
25/07/1995 |
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Data da última atualização: |
25/07/1995 |
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Autoria: |
SOUZA, R.M. de; RAMOS, C.I. ; SOUZA, A.P. de. |
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Título: |
Diagnostico helmintologico em terneiros de corte no municipio de Lages, SC. |
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Ano de publicação: |
1977 |
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Fonte/Imprenta: |
Florianopolis: EMPASC, 1977. |
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Páginas: |
6p. |
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Série: |
(EMPASC. Comunicado Tecnico, 3). |
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Idioma: |
Português |
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Conteúdo: |
Com a finalidade de se conhecer as especies de helmintos gastrintestinais e pulmonares dos terneiros de corte, necropsiou-se onze terneiros com idade de sete a onze meses. As especies encontradas com as devidas frequencias foram: no coagulador - Haemonchus contortus (85,35%), H. similis (14,65%), Ostertagia ostertagi (87,16%), O. lyrata (10,09%), O. circumcincta (2,75%) e Trichostrongylus axei (93,19%); intestino delgado-T. colubriformis (6,90%), C.punctata (60,46%), C.oncophora (32,18%), C. curticei (7,36%), Strongyloides papillosus (45,45%), Bunostomum phlebotomum (18,18%), Nematodirus spatiger (9,09%) e Moniezia spp (27,27%); intestino grosso - Oesophagostomum radiatum (90,91%) e Trichuris spp (63,63%); pulmao - Disctyocaulua viviparus (26,27%). |
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Palavras-Chave: |
BEZERRO; DIAGNOSTICO; HELMINTO; LAGES(SC); SANTA CATARINA. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01327nam a2200217 a 4500
001 1000438
005 1995-07-25
008 1977 bl uuuu u0uu1 u #d
100 1 $aSOUZA, R.M. de
245 $aDiagnostico helmintologico em terneiros de corte no municipio de Lages, SC.
260 $aFlorianopolis: EMPASC$c1977
300 $a6p.
490 $a(EMPASC. Comunicado Tecnico, 3).
520 $aCom a finalidade de se conhecer as especies de helmintos gastrintestinais e pulmonares dos terneiros de corte, necropsiou-se onze terneiros com idade de sete a onze meses. As especies encontradas com as devidas frequencias foram: no coagulador - Haemonchus contortus (85,35%), H. similis (14,65%), Ostertagia ostertagi (87,16%), O. lyrata (10,09%), O. circumcincta (2,75%) e Trichostrongylus axei (93,19%); intestino delgado-T. colubriformis (6,90%), C.punctata (60,46%), C.oncophora (32,18%), C. curticei (7,36%), Strongyloides papillosus (45,45%), Bunostomum phlebotomum (18,18%), Nematodirus spatiger (9,09%) e Moniezia spp (27,27%); intestino grosso - Oesophagostomum radiatum (90,91%) e Trichuris spp (63,63%); pulmao - Disctyocaulua viviparus (26,27%).
653 $aBEZERRO
653 $aDIAGNOSTICO
653 $aHELMINTO
653 $aLAGES(SC)
653 $aSANTA CATARINA
700 1 $aRAMOS, C.I.
700 1 $aSOUZA, A.P. de.
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