Linking the dynamic organization of the ovary with spawning dynamics in pelagic fishes
The link between the dynamic organization of the ovary and spawning dynamics was investigated in pelagic fishes with indeterminate fecundity. Αn array of laboratory methods and statistical approaches was applied to samples of gonadal material from three commercial NE Atlantic fish species: the sardi...
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ftcsic:oai:digital.csic.es:10261/327269 2024-02-11T10:06:38+01:00 Linking the dynamic organization of the ovary with spawning dynamics in pelagic fishes Charitonidou, K Kjesbu, O.S. Nunes, C. Domínguez-Petit, Rosario Garabana-Barro, Dolores Ganias, K. Océan atlantique Atlantique Nord Atlantic Ocean Atlántico Norte Océano Atlántico ICES North Atlantic 2022-03-17 http://hdl.handle.net/10508/15829 http://hdl.handle.net/10261/327269 https://doi.org/10.1007/s00227-022-04032-z en eng Centro Oceanográfico de Vigo VoR https://link.springer.com/article/10.1007/s00227-022-04032-z Marine Biology, 169. 2022: 47-- 0025-3162 http://hdl.handle.net/10508/15829 http://hdl.handle.net/10261/327269 doi:10.1007/s00227-022-04032-z 50152 open Oocyte growth Pesquerías Centro Oceanográfico de Vigo Oocyte recruitment Spawning frequency Fecundity type Spawning dynamics fish fecundity marine ecology spawning dynamics artículo http://purl.org/coar/resource_type/c_6501 2022 ftcsic https://doi.org/10.1007/s00227-022-04032-z 2024-01-16T11:48:53Z The link between the dynamic organization of the ovary and spawning dynamics was investigated in pelagic fishes with indeterminate fecundity. Αn array of laboratory methods and statistical approaches was applied to samples of gonadal material from three commercial NE Atlantic fish species: the sardine, Sardina pilchardus, the horse mackerel, Trachurus trachurus, and the mackerel, Scomber scombrus. Methods included the application of clustering analysis algorithms in histological specimens and the application of particle analysis on whole mounts. More specifically, various attributes of ovarian dynamics such as the oocyte size frequency distribution, the ratio of total to batch fecundity, the number of oocyte cohorts, and the recruitment of early secondary growth oocytes were related to historic estimates of spawning interval and oocyte growth rate. It was shown that indeterminate spawners can display varying proportions of oocytes at the size range between primary and secondary growth based on the seasonal pattern of oocyte recruitment. This finding indicates that determinacy and indeterminacy should rather be recognized as end-points along a continuum which is controlled by the degree of overlap between oocyte recruitment period and spawning period. It was also demonstrated that fishes like sardine with long spawning intervals and fast oocyte growth exhibit relatively few, clearly separated oocyte cohorts, while fishes like mackerel with shorter spawning interval display increased number of coexisting cohorts. Ultimately, these aspects may provide a proxy of spawning interval and thereby spawning frequency which is a variable of paramount importance in biomass assessments of commercial fish stocks through egg production methods. SI Article in Journal/Newspaper North Atlantic Digital.CSIC (Spanish National Research Council) Marine Biology 169 4 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Oocyte growth Pesquerías Centro Oceanográfico de Vigo Oocyte recruitment Spawning frequency Fecundity type Spawning dynamics fish fecundity marine ecology spawning dynamics |
spellingShingle |
Oocyte growth Pesquerías Centro Oceanográfico de Vigo Oocyte recruitment Spawning frequency Fecundity type Spawning dynamics fish fecundity marine ecology spawning dynamics Charitonidou, K Kjesbu, O.S. Nunes, C. Domínguez-Petit, Rosario Garabana-Barro, Dolores Ganias, K. Linking the dynamic organization of the ovary with spawning dynamics in pelagic fishes |
topic_facet |
Oocyte growth Pesquerías Centro Oceanográfico de Vigo Oocyte recruitment Spawning frequency Fecundity type Spawning dynamics fish fecundity marine ecology spawning dynamics |
description |
The link between the dynamic organization of the ovary and spawning dynamics was investigated in pelagic fishes with indeterminate fecundity. Αn array of laboratory methods and statistical approaches was applied to samples of gonadal material from three commercial NE Atlantic fish species: the sardine, Sardina pilchardus, the horse mackerel, Trachurus trachurus, and the mackerel, Scomber scombrus. Methods included the application of clustering analysis algorithms in histological specimens and the application of particle analysis on whole mounts. More specifically, various attributes of ovarian dynamics such as the oocyte size frequency distribution, the ratio of total to batch fecundity, the number of oocyte cohorts, and the recruitment of early secondary growth oocytes were related to historic estimates of spawning interval and oocyte growth rate. It was shown that indeterminate spawners can display varying proportions of oocytes at the size range between primary and secondary growth based on the seasonal pattern of oocyte recruitment. This finding indicates that determinacy and indeterminacy should rather be recognized as end-points along a continuum which is controlled by the degree of overlap between oocyte recruitment period and spawning period. It was also demonstrated that fishes like sardine with long spawning intervals and fast oocyte growth exhibit relatively few, clearly separated oocyte cohorts, while fishes like mackerel with shorter spawning interval display increased number of coexisting cohorts. Ultimately, these aspects may provide a proxy of spawning interval and thereby spawning frequency which is a variable of paramount importance in biomass assessments of commercial fish stocks through egg production methods. SI |
format |
Article in Journal/Newspaper |
author |
Charitonidou, K Kjesbu, O.S. Nunes, C. Domínguez-Petit, Rosario Garabana-Barro, Dolores Ganias, K. |
author_facet |
Charitonidou, K Kjesbu, O.S. Nunes, C. Domínguez-Petit, Rosario Garabana-Barro, Dolores Ganias, K. |
author_sort |
Charitonidou, K |
title |
Linking the dynamic organization of the ovary with spawning dynamics in pelagic fishes |
title_short |
Linking the dynamic organization of the ovary with spawning dynamics in pelagic fishes |
title_full |
Linking the dynamic organization of the ovary with spawning dynamics in pelagic fishes |
title_fullStr |
Linking the dynamic organization of the ovary with spawning dynamics in pelagic fishes |
title_full_unstemmed |
Linking the dynamic organization of the ovary with spawning dynamics in pelagic fishes |
title_sort |
linking the dynamic organization of the ovary with spawning dynamics in pelagic fishes |
publishDate |
2022 |
url |
http://hdl.handle.net/10508/15829 http://hdl.handle.net/10261/327269 https://doi.org/10.1007/s00227-022-04032-z |
op_coverage |
Océan atlantique Atlantique Nord Atlantic Ocean Atlántico Norte Océano Atlántico ICES North Atlantic |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Centro Oceanográfico de Vigo VoR https://link.springer.com/article/10.1007/s00227-022-04032-z Marine Biology, 169. 2022: 47-- 0025-3162 http://hdl.handle.net/10508/15829 http://hdl.handle.net/10261/327269 doi:10.1007/s00227-022-04032-z 50152 |
op_rights |
open |
op_doi |
https://doi.org/10.1007/s00227-022-04032-z |
container_title |
Marine Biology |
container_volume |
169 |
container_issue |
4 |
_version_ |
1790604466112692224 |