Description of the Annual Reproductive Cycle of Wreckfish Polyprion americanus in Captivity
Clicks: 265
ID: 118444
2018
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This
article has not been analysed, so there is no overall score —
reader engagement is measured and shown alongside.
Reader Engagement
Steady Performance
30.0
/100
265 views
27 readers
AI Quality Assessment
Not analyzed
Readership in this journal
SteadyRanked #92 of 163 articles by views in fishes
Most read
Least read
Bar heights use a square-root scale. Only the 120 most-read articles are drawn; the journal has 163 in total.
Mint this article as an NFT
Not yet mintedCreate a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.
5
SUSD
one-off · no wallet required
Abstract
Successful spontaneous reproduction and the production of viable offspring of wild fish in captivity can take some years of adaptation, and may also involve different environmental conditions, sex ratios and densities compared to natural populations. We followed the reproductive cycle of wreckfish Polyprion americanus—a late maturing, deep-sea benthic species—in captivity in three different broodstocks in Spain under natural photoperiod and temperature, and one broodstock in Greece under a constant temperature of 16 °C for two consecutive years, to describe the reproductive cycle of the species and the associated sex steroid hormone profiles. Oogenesis begun in the fall and post-vitellogenic oocytes of 1250 μm were present between March and June. Males were in spermiation condition and produced good-quality sperm throughout the year, regardless of the temperature profile to which they were exposed. Some females completed oogenesis, underwent oocyte maturation, and spawned spontaneously under both constant and fluctuating temperatures. The sex steroid hormones of both males and females followed the already-known profiles during fish gametogenesis, except for 17,20β-dihydroxy-progesterone, which did not seem to be related to either female or male maturation. The female reproductive dysfunctions that were identified included (a) the arrest of oogenesis at the cortical alveoli stage in certain females; (b) the failure to undergo oocyte maturation in others; and (c) the production of large percentages of unfertilized eggs from the females that spawned spontaneously. Our study suggests that reproduction in captivity is possible in wreckfish maintained under typical marine aquaculture conditions, but that reliable spawning and production of high-quality eggs may require some years of adaptation to captivity, before the reproductive dysfunctions will be overcome.
| Reference Key |
papadaki2018fishesdescription
Use this key to autocite in the manuscript while using
SciMatic Manuscript Manager or Thesis Manager
|
|---|---|
| Authors | Maria Papadaki;José Benito Peleteiro;Blanca Alvarez-Blázquez;José Luis Rodríguez Villanueva;Fatima Linares;Antonio Vilar;Evaristo Pérez Rial;Nuria Lluch;Ioannis Fakriadis;Irini Sigelaki;Constantinos C. Mylonas;Papadaki, Maria;Peleteiro, José Benito;Alvarez-Blázquez, Blanca;Rodríguez Villanueva, José Luis;Linares, Fatima;Vilar, Antonio;Pérez Rial, Evaristo;Lluch, Nuria;Fakriadis, Ioannis;Sigelaki, Irini;Mylonas, Constantinos C.; |
| Journal | fishes |
| Year | 2018 |
| DOI |
10.3390/fishes3040043
|
| URL | |
| Keywords |
Citations
No citations found. To add a citation, contact the admin at info@scimatic.org
Comments
No comments yet. Be the first to comment on this article.