Feeding behavior of the Neotropical freshwater stingray potamotrygon motoro (Elasmobranchii: Potamotrygonidae)
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional do INPA |
Texto Completo: | https://repositorio.inpa.gov.br/handle/1/14594 |
Resumo: | The feeding mechanisms of elasmobranchs and their functioning have been receiving growing scientific attention, although less emphasis has yet to be directed towards batoid species. The present study investigated the use of orobranchial musculature during prey capture and processing behavior in Potamotrygon motoro. Ten orobranchial muscle groups were removed to determine their relative biomasses. The kinematics of the musculature was described based on videos of prey capture and manipulation under captive conditions recorded at 250 and 500 field/s. Analyses of the orobranchial musculature indicated that adductor muscles responsible for closing the mouth had high biomasses, which is consistent with their functions related to apprehend and manipulate the prey. The feeding behavior adopted by this ray species showed a sequence of manipulation to crush hard prey as crustaceans (dominant prey category for P. motoro) to facilitate final oral transport. The morphological and behavioral characteristics of P. motoro are essential to fully understanding the mechanisms used in prey capture and processing in environments in which these stingrays occur. © 2012 Sociedade Brasileira de Ictiologia. |
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Shibuya, AkemiZuanon, JansenTanaka, Sho2020-04-24T16:55:10Z2020-04-24T16:55:10Z2012https://repositorio.inpa.gov.br/handle/1/1459410.1590/S1679-62252012000100018The feeding mechanisms of elasmobranchs and their functioning have been receiving growing scientific attention, although less emphasis has yet to be directed towards batoid species. The present study investigated the use of orobranchial musculature during prey capture and processing behavior in Potamotrygon motoro. Ten orobranchial muscle groups were removed to determine their relative biomasses. The kinematics of the musculature was described based on videos of prey capture and manipulation under captive conditions recorded at 250 and 500 field/s. Analyses of the orobranchial musculature indicated that adductor muscles responsible for closing the mouth had high biomasses, which is consistent with their functions related to apprehend and manipulate the prey. The feeding behavior adopted by this ray species showed a sequence of manipulation to crush hard prey as crustaceans (dominant prey category for P. motoro) to facilitate final oral transport. The morphological and behavioral characteristics of P. motoro are essential to fully understanding the mechanisms used in prey capture and processing in environments in which these stingrays occur. © 2012 Sociedade Brasileira de Ictiologia.Volume 10, Número 1, Pags. 189-196Attribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/info:eu-repo/semantics/openAccessBatoideaCrustaceaDasyatidaeElasmobranchiiPotamotrygon MotoroPotamotrygonidaeFeeding behavior of the Neotropical freshwater stingray potamotrygon motoro (Elasmobranchii: Potamotrygonidae)info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleNeotropical Ichthyologyengreponame:Repositório Institucional do INPAinstname:Instituto Nacional de Pesquisas da Amazônia (INPA)instacron:INPAORIGINALartigo-inpa.pdfapplication/pdf1179055https://repositorio.inpa.gov.br/bitstream/1/14594/1/artigo-inpa.pdf9a19f9c8390122c3666568709ea5695fMD51CC-LICENSElicense_rdfapplication/octet-stream914https://repositorio.inpa.gov.br/bitstream/1/14594/2/license_rdf4d2950bda3d176f570a9f8b328dfbbefMD521/145942020-07-14 09:13:34.638oai:repositorio:1/14594Repositório de PublicaçõesPUBhttps://repositorio.inpa.gov.br/oai/requestopendoar:2020-07-14T13:13:34Repositório Institucional do INPA - Instituto Nacional de Pesquisas da Amazônia (INPA)false |
dc.title.en.fl_str_mv |
Feeding behavior of the Neotropical freshwater stingray potamotrygon motoro (Elasmobranchii: Potamotrygonidae) |
title |
Feeding behavior of the Neotropical freshwater stingray potamotrygon motoro (Elasmobranchii: Potamotrygonidae) |
spellingShingle |
Feeding behavior of the Neotropical freshwater stingray potamotrygon motoro (Elasmobranchii: Potamotrygonidae) Shibuya, Akemi Batoidea Crustacea Dasyatidae Elasmobranchii Potamotrygon Motoro Potamotrygonidae |
title_short |
Feeding behavior of the Neotropical freshwater stingray potamotrygon motoro (Elasmobranchii: Potamotrygonidae) |
title_full |
Feeding behavior of the Neotropical freshwater stingray potamotrygon motoro (Elasmobranchii: Potamotrygonidae) |
title_fullStr |
Feeding behavior of the Neotropical freshwater stingray potamotrygon motoro (Elasmobranchii: Potamotrygonidae) |
title_full_unstemmed |
Feeding behavior of the Neotropical freshwater stingray potamotrygon motoro (Elasmobranchii: Potamotrygonidae) |
title_sort |
Feeding behavior of the Neotropical freshwater stingray potamotrygon motoro (Elasmobranchii: Potamotrygonidae) |
author |
Shibuya, Akemi |
author_facet |
Shibuya, Akemi Zuanon, Jansen Tanaka, Sho |
author_role |
author |
author2 |
Zuanon, Jansen Tanaka, Sho |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Shibuya, Akemi Zuanon, Jansen Tanaka, Sho |
dc.subject.eng.fl_str_mv |
Batoidea Crustacea Dasyatidae Elasmobranchii Potamotrygon Motoro Potamotrygonidae |
topic |
Batoidea Crustacea Dasyatidae Elasmobranchii Potamotrygon Motoro Potamotrygonidae |
description |
The feeding mechanisms of elasmobranchs and their functioning have been receiving growing scientific attention, although less emphasis has yet to be directed towards batoid species. The present study investigated the use of orobranchial musculature during prey capture and processing behavior in Potamotrygon motoro. Ten orobranchial muscle groups were removed to determine their relative biomasses. The kinematics of the musculature was described based on videos of prey capture and manipulation under captive conditions recorded at 250 and 500 field/s. Analyses of the orobranchial musculature indicated that adductor muscles responsible for closing the mouth had high biomasses, which is consistent with their functions related to apprehend and manipulate the prey. The feeding behavior adopted by this ray species showed a sequence of manipulation to crush hard prey as crustaceans (dominant prey category for P. motoro) to facilitate final oral transport. The morphological and behavioral characteristics of P. motoro are essential to fully understanding the mechanisms used in prey capture and processing in environments in which these stingrays occur. © 2012 Sociedade Brasileira de Ictiologia. |
publishDate |
2012 |
dc.date.issued.fl_str_mv |
2012 |
dc.date.accessioned.fl_str_mv |
2020-04-24T16:55:10Z |
dc.date.available.fl_str_mv |
2020-04-24T16:55:10Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://repositorio.inpa.gov.br/handle/1/14594 |
dc.identifier.doi.none.fl_str_mv |
10.1590/S1679-62252012000100018 |
url |
https://repositorio.inpa.gov.br/handle/1/14594 |
identifier_str_mv |
10.1590/S1679-62252012000100018 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Volume 10, Número 1, Pags. 189-196 |
dc.rights.driver.fl_str_mv |
Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Neotropical Ichthyology |
publisher.none.fl_str_mv |
Neotropical Ichthyology |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional do INPA instname:Instituto Nacional de Pesquisas da Amazônia (INPA) instacron:INPA |
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INPA |
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INPA |
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Repositório Institucional do INPA |
collection |
Repositório Institucional do INPA |
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