Reproductive biology in the Antarctic bathydraconid dragonfish Parachaenichthys charcoti
Studies on reproduction of the dragonfishes, Bathydraconidae, are scarce, and within this family, the reproductive biology of Parachaenichthys charcoti was poorly understood. Herein we present a histologic analysis of P. charcoti ovaries together with data on reproductive effort using fish collected...
Published in: | Polar Biology |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Springer
|
Subjects: | |
Online Access: | http://hdl.handle.net/11336/85287 |
id |
ftconicet:oai:ri.conicet.gov.ar:11336/85287 |
---|---|
record_format |
openpolar |
spelling |
ftconicet:oai:ri.conicet.gov.ar:11336/85287 2023-10-09T21:47:13+02:00 Reproductive biology in the Antarctic bathydraconid dragonfish Parachaenichthys charcoti Novillo Estofan, Julio Manuel Moreira, María Eugenia Macchi, Gustavo Javier Barrera Oro, Federico Esteban application/pdf http://hdl.handle.net/11336/85287 eng eng Springer info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs00300-018-2359-5 info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-018-2359-5 http://hdl.handle.net/11336/85287 Novillo Estofan, Julio Manuel; Moreira, María Eugenia; Macchi, Gustavo Javier; Barrera Oro, Federico Esteban; Reproductive biology in the Antarctic bathydraconid dragonfish Parachaenichthys charcoti; Springer; Polar Biology; 41; 11; 11-2018; 2239-2248 0722-4060 CONICET Digital CONICET info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ FECUNDITY HISTOLOGY NOTOTHENIOIDEI PARACHAENICHTHYS GEORGIANUS SOUTH SHETLAND ISLANDS https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1007/s00300-018-2359-5 2023-09-24T19:00:19Z Studies on reproduction of the dragonfishes, Bathydraconidae, are scarce, and within this family, the reproductive biology of Parachaenichthys charcoti was poorly understood. Herein we present a histologic analysis of P. charcoti ovaries together with data on reproductive effort using fish collected with trammel nets in austral summer at Potter Cove, South Shetland Islands (SSI), and compare this information with that reported for the South Georgia congener Parachaenichthys georgianus. In gravid females of P. charcoti, GSI of 16–31%, mature oocytes of 1.8–3.9 mm and total fecundity (TF) of 9025–18,937 oocytes/individual (X ± SD = 12,617 ± 4019, n = 7) were recorded. The histology of the ovaries confirmed the common characteristics of the Notothenioidei observed macroscopically, i.e., two distinct batches of oocytes, one in the previtellogenic stage (primary growing or cortical alveoli stages) and the other in vitellogenesis and likely to be released in the current season. A longer incubation period of P. charcoti compared with P. georgianus is associated to the colder waters at the SSI. Based on our sampling and reproductive effort data, together with the reported nesting behavior for P. charcoti, it is assumed that this species spawns in nearshore, sheltered waters in summer, presumably from late December to February. Spawning periods of both congeners differ from those reported for other notothenioids in the same Seasonal Pack-ice Zone, suggesting divergence in some aspects of the life strategies in the genus Parachaenichthys. Likewise, although there are no substantial differences between P. charcoti and other notothenioids regarding gonadal development, the genus Parachaenichthys shows distinct features in its reproductive strategies (e.g., higher TF) compared with other bathydraconid species. Fil: Novillo Estofan, Julio Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque ... Article in Journal/Newspaper Antarc* Antarctic Polar Biology South Shetland Islands CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Antarctic The Antarctic Austral South Shetland Islands Potter Cove Argentina Polar Biology 41 11 2239 2248 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
FECUNDITY HISTOLOGY NOTOTHENIOIDEI PARACHAENICHTHYS GEORGIANUS SOUTH SHETLAND ISLANDS https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
spellingShingle |
FECUNDITY HISTOLOGY NOTOTHENIOIDEI PARACHAENICHTHYS GEORGIANUS SOUTH SHETLAND ISLANDS https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 Novillo Estofan, Julio Manuel Moreira, María Eugenia Macchi, Gustavo Javier Barrera Oro, Federico Esteban Reproductive biology in the Antarctic bathydraconid dragonfish Parachaenichthys charcoti |
topic_facet |
FECUNDITY HISTOLOGY NOTOTHENIOIDEI PARACHAENICHTHYS GEORGIANUS SOUTH SHETLAND ISLANDS https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
description |
Studies on reproduction of the dragonfishes, Bathydraconidae, are scarce, and within this family, the reproductive biology of Parachaenichthys charcoti was poorly understood. Herein we present a histologic analysis of P. charcoti ovaries together with data on reproductive effort using fish collected with trammel nets in austral summer at Potter Cove, South Shetland Islands (SSI), and compare this information with that reported for the South Georgia congener Parachaenichthys georgianus. In gravid females of P. charcoti, GSI of 16–31%, mature oocytes of 1.8–3.9 mm and total fecundity (TF) of 9025–18,937 oocytes/individual (X ± SD = 12,617 ± 4019, n = 7) were recorded. The histology of the ovaries confirmed the common characteristics of the Notothenioidei observed macroscopically, i.e., two distinct batches of oocytes, one in the previtellogenic stage (primary growing or cortical alveoli stages) and the other in vitellogenesis and likely to be released in the current season. A longer incubation period of P. charcoti compared with P. georgianus is associated to the colder waters at the SSI. Based on our sampling and reproductive effort data, together with the reported nesting behavior for P. charcoti, it is assumed that this species spawns in nearshore, sheltered waters in summer, presumably from late December to February. Spawning periods of both congeners differ from those reported for other notothenioids in the same Seasonal Pack-ice Zone, suggesting divergence in some aspects of the life strategies in the genus Parachaenichthys. Likewise, although there are no substantial differences between P. charcoti and other notothenioids regarding gonadal development, the genus Parachaenichthys shows distinct features in its reproductive strategies (e.g., higher TF) compared with other bathydraconid species. Fil: Novillo Estofan, Julio Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque ... |
format |
Article in Journal/Newspaper |
author |
Novillo Estofan, Julio Manuel Moreira, María Eugenia Macchi, Gustavo Javier Barrera Oro, Federico Esteban |
author_facet |
Novillo Estofan, Julio Manuel Moreira, María Eugenia Macchi, Gustavo Javier Barrera Oro, Federico Esteban |
author_sort |
Novillo Estofan, Julio Manuel |
title |
Reproductive biology in the Antarctic bathydraconid dragonfish Parachaenichthys charcoti |
title_short |
Reproductive biology in the Antarctic bathydraconid dragonfish Parachaenichthys charcoti |
title_full |
Reproductive biology in the Antarctic bathydraconid dragonfish Parachaenichthys charcoti |
title_fullStr |
Reproductive biology in the Antarctic bathydraconid dragonfish Parachaenichthys charcoti |
title_full_unstemmed |
Reproductive biology in the Antarctic bathydraconid dragonfish Parachaenichthys charcoti |
title_sort |
reproductive biology in the antarctic bathydraconid dragonfish parachaenichthys charcoti |
publisher |
Springer |
url |
http://hdl.handle.net/11336/85287 |
geographic |
Antarctic The Antarctic Austral South Shetland Islands Potter Cove Argentina |
geographic_facet |
Antarctic The Antarctic Austral South Shetland Islands Potter Cove Argentina |
genre |
Antarc* Antarctic Polar Biology South Shetland Islands |
genre_facet |
Antarc* Antarctic Polar Biology South Shetland Islands |
op_relation |
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs00300-018-2359-5 info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-018-2359-5 http://hdl.handle.net/11336/85287 Novillo Estofan, Julio Manuel; Moreira, María Eugenia; Macchi, Gustavo Javier; Barrera Oro, Federico Esteban; Reproductive biology in the Antarctic bathydraconid dragonfish Parachaenichthys charcoti; Springer; Polar Biology; 41; 11; 11-2018; 2239-2248 0722-4060 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1007/s00300-018-2359-5 |
container_title |
Polar Biology |
container_volume |
41 |
container_issue |
11 |
container_start_page |
2239 |
op_container_end_page |
2248 |
_version_ |
1779310162266292224 |