Embryo development timeline, mating behavior and reproductive parameters in Sympterygia acuta (Arhynchobatidae), a common coastal skate species from the Southwestern Atlantic

Autores
Vazquez, Diego Martin; Rodriguez, Francisco; Gabbanelli, Valeria; Díaz de Astarloa, Juan Martín; Mabragaña, Ezequiel
Año de publicación
2018
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
Studies in captivity on chondrichthyans allow to investigate in detail embryonic development and other aspects of reproduction. Skates are oviparous and their egg cases can be easily maintained under laboratory conditions. Of the nine skate species inhabiting coastal waters from the Southwest Atlantic, embryo development timeline has been performed only in Sympterygia bonapartii. Here, we describe for the first time the complete embryonic development with a timetable of S. acuta, a coastal species with a marked seasonal reproductive cycle. Other features such as mating behavior, incubation period, size at hatching and sex proportion are also provided, through the study under controlled conditions of captivity. Three mature females of S. acuta were maintained in a 20000-liter tank with aerated seawater in a closed system, at Mar del Plata Aquarium. Specimens were kept trying to mimic natural conditions (11-21°C, natural photoperiod) from September 19th to December 22nd, 2017, but one female died by November 14th. A total of 53 egg cases were deposited in a period of 80 days. Egg cases were collected after deposition and placed in floating baskets in the same tank. Four mature males were also present in the tank. Embryonic development was described in detail analysing a total of 42 embryos sampled every 14 days. The first half of the embryonic development shows the appearance of the embryonic axis and cranial structures, development and growth of gill filaments, presence of dorsal fins, growth of pectoral and pelvic fins with differentiation into claspers and a pulsatile heart. After 70 days until hatching, the embryo acquires the typical batoid disc, mouth and nares become neonatal, gill filaments are resorbed and spiracles begin to pump bringing oxygenated water into the internal gills, spinulation, epidermal and eye pigmentation are set, and yolk is being absorbed. After hatching, the embryo is fully pigmentated, breathes normally, has reabsorbed most of the yolk, and is able to swim independently. Incubation period at 11-21°C was between 89-108 days (mean±S.D., 94.2±5.9 days). Size at hatching ranged from 87-94 mm (mean±S.D., 90±2.5 mm total length), sex ratio (F:M) was about 1-1.1 and viability of egg cases was ~ 98%. Considering the time period shared by the three egg-depositing females (50 days), estimated relative fecundity was 13 eggs/female. Copulation events recorded by video are also described. Sympterygia acuta is a good model to carry out studies in captivity on skates, given its rapid adaptability and good reproductive performance.
Fil: Vazquez, Diego Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Rodriguez, Francisco. No especifíca;
Fil: Gabbanelli, Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Díaz de Astarloa, Juan Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Mabragaña, Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Sharks International Conference
Joao Pessoa
Brasil
Universidade Federal Da Paraiba
Materia
Bignose fanskate
Embryonic developement
Incubation period
Copulatory behavior
Captivity
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/267799

id CONICETDig_1f44b39d41aa3aeb1635a77153b7573a
oai_identifier_str oai:ri.conicet.gov.ar:11336/267799
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Embryo development timeline, mating behavior and reproductive parameters in Sympterygia acuta (Arhynchobatidae), a common coastal skate species from the Southwestern AtlanticVazquez, Diego MartinRodriguez, FranciscoGabbanelli, ValeriaDíaz de Astarloa, Juan MartínMabragaña, EzequielBignose fanskateEmbryonic developementIncubation periodCopulatory behaviorCaptivityhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Studies in captivity on chondrichthyans allow to investigate in detail embryonic development and other aspects of reproduction. Skates are oviparous and their egg cases can be easily maintained under laboratory conditions. Of the nine skate species inhabiting coastal waters from the Southwest Atlantic, embryo development timeline has been performed only in Sympterygia bonapartii. Here, we describe for the first time the complete embryonic development with a timetable of S. acuta, a coastal species with a marked seasonal reproductive cycle. Other features such as mating behavior, incubation period, size at hatching and sex proportion are also provided, through the study under controlled conditions of captivity. Three mature females of S. acuta were maintained in a 20000-liter tank with aerated seawater in a closed system, at Mar del Plata Aquarium. Specimens were kept trying to mimic natural conditions (11-21°C, natural photoperiod) from September 19th to December 22nd, 2017, but one female died by November 14th. A total of 53 egg cases were deposited in a period of 80 days. Egg cases were collected after deposition and placed in floating baskets in the same tank. Four mature males were also present in the tank. Embryonic development was described in detail analysing a total of 42 embryos sampled every 14 days. The first half of the embryonic development shows the appearance of the embryonic axis and cranial structures, development and growth of gill filaments, presence of dorsal fins, growth of pectoral and pelvic fins with differentiation into claspers and a pulsatile heart. After 70 days until hatching, the embryo acquires the typical batoid disc, mouth and nares become neonatal, gill filaments are resorbed and spiracles begin to pump bringing oxygenated water into the internal gills, spinulation, epidermal and eye pigmentation are set, and yolk is being absorbed. After hatching, the embryo is fully pigmentated, breathes normally, has reabsorbed most of the yolk, and is able to swim independently. Incubation period at 11-21°C was between 89-108 days (mean±S.D., 94.2±5.9 days). Size at hatching ranged from 87-94 mm (mean±S.D., 90±2.5 mm total length), sex ratio (F:M) was about 1-1.1 and viability of egg cases was ~ 98%. Considering the time period shared by the three egg-depositing females (50 days), estimated relative fecundity was 13 eggs/female. Copulation events recorded by video are also described. Sympterygia acuta is a good model to carry out studies in captivity on skates, given its rapid adaptability and good reproductive performance.Fil: Vazquez, Diego Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Rodriguez, Francisco. No especifíca;Fil: Gabbanelli, Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Díaz de Astarloa, Juan Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Mabragaña, Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaSharks International ConferenceJoao PessoaBrasilUniversidade Federal Da ParaibaUniversidade Federal Da Paraiba2018info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectConferenciaBookhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/267799Embryo development timeline, mating behavior and reproductive parameters in Sympterygia acuta (Arhynchobatidae), a common coastal skate species from the Southwestern Atlantic; Sharks International Conference; Joao Pessoa; Brasil; 2018; 428-428978-85-237-1396-6CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sharksinternational.org.br/arquivos/Sharks_International_Conference-Abstract_Book_2.pdfInternacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:29:04Zoai:ri.conicet.gov.ar:11336/267799instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:29:04.877CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Embryo development timeline, mating behavior and reproductive parameters in Sympterygia acuta (Arhynchobatidae), a common coastal skate species from the Southwestern Atlantic
title Embryo development timeline, mating behavior and reproductive parameters in Sympterygia acuta (Arhynchobatidae), a common coastal skate species from the Southwestern Atlantic
spellingShingle Embryo development timeline, mating behavior and reproductive parameters in Sympterygia acuta (Arhynchobatidae), a common coastal skate species from the Southwestern Atlantic
Vazquez, Diego Martin
Bignose fanskate
Embryonic developement
Incubation period
Copulatory behavior
Captivity
title_short Embryo development timeline, mating behavior and reproductive parameters in Sympterygia acuta (Arhynchobatidae), a common coastal skate species from the Southwestern Atlantic
title_full Embryo development timeline, mating behavior and reproductive parameters in Sympterygia acuta (Arhynchobatidae), a common coastal skate species from the Southwestern Atlantic
title_fullStr Embryo development timeline, mating behavior and reproductive parameters in Sympterygia acuta (Arhynchobatidae), a common coastal skate species from the Southwestern Atlantic
title_full_unstemmed Embryo development timeline, mating behavior and reproductive parameters in Sympterygia acuta (Arhynchobatidae), a common coastal skate species from the Southwestern Atlantic
title_sort Embryo development timeline, mating behavior and reproductive parameters in Sympterygia acuta (Arhynchobatidae), a common coastal skate species from the Southwestern Atlantic
dc.creator.none.fl_str_mv Vazquez, Diego Martin
Rodriguez, Francisco
Gabbanelli, Valeria
Díaz de Astarloa, Juan Martín
Mabragaña, Ezequiel
author Vazquez, Diego Martin
author_facet Vazquez, Diego Martin
Rodriguez, Francisco
Gabbanelli, Valeria
Díaz de Astarloa, Juan Martín
Mabragaña, Ezequiel
author_role author
author2 Rodriguez, Francisco
Gabbanelli, Valeria
Díaz de Astarloa, Juan Martín
Mabragaña, Ezequiel
author2_role author
author
author
author
dc.subject.none.fl_str_mv Bignose fanskate
Embryonic developement
Incubation period
Copulatory behavior
Captivity
topic Bignose fanskate
Embryonic developement
Incubation period
Copulatory behavior
Captivity
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Studies in captivity on chondrichthyans allow to investigate in detail embryonic development and other aspects of reproduction. Skates are oviparous and their egg cases can be easily maintained under laboratory conditions. Of the nine skate species inhabiting coastal waters from the Southwest Atlantic, embryo development timeline has been performed only in Sympterygia bonapartii. Here, we describe for the first time the complete embryonic development with a timetable of S. acuta, a coastal species with a marked seasonal reproductive cycle. Other features such as mating behavior, incubation period, size at hatching and sex proportion are also provided, through the study under controlled conditions of captivity. Three mature females of S. acuta were maintained in a 20000-liter tank with aerated seawater in a closed system, at Mar del Plata Aquarium. Specimens were kept trying to mimic natural conditions (11-21°C, natural photoperiod) from September 19th to December 22nd, 2017, but one female died by November 14th. A total of 53 egg cases were deposited in a period of 80 days. Egg cases were collected after deposition and placed in floating baskets in the same tank. Four mature males were also present in the tank. Embryonic development was described in detail analysing a total of 42 embryos sampled every 14 days. The first half of the embryonic development shows the appearance of the embryonic axis and cranial structures, development and growth of gill filaments, presence of dorsal fins, growth of pectoral and pelvic fins with differentiation into claspers and a pulsatile heart. After 70 days until hatching, the embryo acquires the typical batoid disc, mouth and nares become neonatal, gill filaments are resorbed and spiracles begin to pump bringing oxygenated water into the internal gills, spinulation, epidermal and eye pigmentation are set, and yolk is being absorbed. After hatching, the embryo is fully pigmentated, breathes normally, has reabsorbed most of the yolk, and is able to swim independently. Incubation period at 11-21°C was between 89-108 days (mean±S.D., 94.2±5.9 days). Size at hatching ranged from 87-94 mm (mean±S.D., 90±2.5 mm total length), sex ratio (F:M) was about 1-1.1 and viability of egg cases was ~ 98%. Considering the time period shared by the three egg-depositing females (50 days), estimated relative fecundity was 13 eggs/female. Copulation events recorded by video are also described. Sympterygia acuta is a good model to carry out studies in captivity on skates, given its rapid adaptability and good reproductive performance.
Fil: Vazquez, Diego Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Rodriguez, Francisco. No especifíca;
Fil: Gabbanelli, Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Díaz de Astarloa, Juan Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Mabragaña, Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Sharks International Conference
Joao Pessoa
Brasil
Universidade Federal Da Paraiba
description Studies in captivity on chondrichthyans allow to investigate in detail embryonic development and other aspects of reproduction. Skates are oviparous and their egg cases can be easily maintained under laboratory conditions. Of the nine skate species inhabiting coastal waters from the Southwest Atlantic, embryo development timeline has been performed only in Sympterygia bonapartii. Here, we describe for the first time the complete embryonic development with a timetable of S. acuta, a coastal species with a marked seasonal reproductive cycle. Other features such as mating behavior, incubation period, size at hatching and sex proportion are also provided, through the study under controlled conditions of captivity. Three mature females of S. acuta were maintained in a 20000-liter tank with aerated seawater in a closed system, at Mar del Plata Aquarium. Specimens were kept trying to mimic natural conditions (11-21°C, natural photoperiod) from September 19th to December 22nd, 2017, but one female died by November 14th. A total of 53 egg cases were deposited in a period of 80 days. Egg cases were collected after deposition and placed in floating baskets in the same tank. Four mature males were also present in the tank. Embryonic development was described in detail analysing a total of 42 embryos sampled every 14 days. The first half of the embryonic development shows the appearance of the embryonic axis and cranial structures, development and growth of gill filaments, presence of dorsal fins, growth of pectoral and pelvic fins with differentiation into claspers and a pulsatile heart. After 70 days until hatching, the embryo acquires the typical batoid disc, mouth and nares become neonatal, gill filaments are resorbed and spiracles begin to pump bringing oxygenated water into the internal gills, spinulation, epidermal and eye pigmentation are set, and yolk is being absorbed. After hatching, the embryo is fully pigmentated, breathes normally, has reabsorbed most of the yolk, and is able to swim independently. Incubation period at 11-21°C was between 89-108 days (mean±S.D., 94.2±5.9 days). Size at hatching ranged from 87-94 mm (mean±S.D., 90±2.5 mm total length), sex ratio (F:M) was about 1-1.1 and viability of egg cases was ~ 98%. Considering the time period shared by the three egg-depositing females (50 days), estimated relative fecundity was 13 eggs/female. Copulation events recorded by video are also described. Sympterygia acuta is a good model to carry out studies in captivity on skates, given its rapid adaptability and good reproductive performance.
publishDate 2018
dc.date.none.fl_str_mv 2018
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Conferencia
Book
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/267799
Embryo development timeline, mating behavior and reproductive parameters in Sympterygia acuta (Arhynchobatidae), a common coastal skate species from the Southwestern Atlantic; Sharks International Conference; Joao Pessoa; Brasil; 2018; 428-428
978-85-237-1396-6
CONICET Digital
CONICET
url http://hdl.handle.net/11336/267799
identifier_str_mv Embryo development timeline, mating behavior and reproductive parameters in Sympterygia acuta (Arhynchobatidae), a common coastal skate species from the Southwestern Atlantic; Sharks International Conference; Joao Pessoa; Brasil; 2018; 428-428
978-85-237-1396-6
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sharksinternational.org.br/arquivos/Sharks_International_Conference-Abstract_Book_2.pdf
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.coverage.none.fl_str_mv Internacional
dc.publisher.none.fl_str_mv Universidade Federal Da Paraiba
publisher.none.fl_str_mv Universidade Federal Da Paraiba
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1844614295731568640
score 13.070432