The reintroduction of the extinct beluga sturgeon (Huso huso L.), an anadromous species with economic and traditional relevance, is a priority in next conservation strategies Northern Italy. EU-LIFE NATURA project aims to reintroduce Po River basin through captive breeding program. Critical requirements for success program are river connectivity knowledge genetic diversity selected broodstocks ...

The proximal composition, amino acids and fatty acid profile were determined in whole body of wild captive southern hake (Merluccius australis) order to evaluate the differences nutrients content due nutritional quality feed consumed during broodstock conditioning this species. Body composition did not show significant dry matter, protein or ash between both studied groups. Conversely, lipid wa...

The moisture, ash, and silicon content, as well the phytolith morphotype concentration in tissue-cultured, seed-cultured, grafted seedling leaves of Dendrocalamus brandisii were determined to investigate differences uptake morphology from different rearing methods. results showed that higher mature leaves. Tissue-cultured seedlings had a significantly moisture content than seedlings. Ash demons...

Information on the genetic structure of fish is a useful means for optimizing identification stocks, stock enhancement, breeding programs, management sustainable yield and preservation diversity. The population African Catfish, Clarias gariepinus (Burchell, 1822) in cultured feral populations from Rivers Guzuguzu, Fada Magaga (Kano State) were investigated using RAPD (Random Amplified Polymorph...

Abstract. Susatyo P, Lestari W, Sugiharto, Chasanah T. 2022. Reproductive aspects of javaen barb fish, Systomus orphoides in the initial domestication program. Biodiversitas 23: 1511-1519. The population Javaen barb, (Valenciennes, 1842) Serayu River Central Java has declined, and is one most critical conservation initiatives. This research aimed to evaluate reproductive aspect an Furthermore, ...

Abstract The effects of 17α-methyltestosterone administration on spermatophore quality in captive broodstock tiger shrimp Penaeus monodon were investigated using injection method and oral based the optimized protocol. experiment was designed to compare group with two replications during a 38-day experimental period. Captive male weighing 57-95 g collected from ponds stored 10,000 m 3 concrete t...

Analyzes a group of 23 freshwater “Edison” pearls (a trade name referring to near-round cultured pearls, usually shell bead cultured) using various gemological and advanced instrumental techniques.