| Autor: |
Dumas Silvie, Ramirez Luna Silvia, Pintos Terán Pablo, Mañanos Evaristo, Tort Lluis |
| Jazyk: |
angličtina |
| Rok vydání: |
2018 |
| Předmět: |
|
| Zdroj: |
Aquatic Living Resources, Vol 31, p 34 (2018) |
| Druh dokumentu: |
article |
| ISSN: |
1765-2952 |
| DOI: |
10.1051/alr/2018023 |
| Popis: |
Reproductive steroid concentration and gonadal development as well as plasma cortisol were investigated during the reproductive period (April to October) of the Pacific red snapper Lutjanus peru, a commercial and important local fishery species in the surrounding areas of Bahía La Paz, Gulf of California, Mexico. Gonads in April were immature and characterized by the presence of oocytes at the chromatin nucleolar and perinucleolar stages. In the next month, more than 50% of the fish showed gonads in vitellogenesis, characterized by the presence of cortical alveoli and early vitellogenic (V1) oocytes. Late vitellogenic and mature gonads were present in July, August and September. Postovulatory follicles were observed only in gonads collected in August, indicating spawning activity of these individuals. The gonadosomatic index (GSI) increased significantly (p |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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