Vietnam is one of the world’s leading countries in aquaculture. Over the past decades, the aquaculture sector has played an important role in the socio-economic development of the country. However, the rapid expansion and growth of this industry have also brought about environmental challenges, as aquaculture activities are associated with ...
Abstract: Quang River in Nghe An has high biodiversity, especially a large-sized freshwater softshell turtle species naturally distributed there. To clarify the classification of Quang River softshell turtles, 07 softshell turtle samples were collected from fishermen and classified by mitochondrial DNA sequencing, COI gene region. The results showed that a ...
Abstract: Marine aquaculture in Van Don, Quang Ninh province, is an important economic sector, playing a role in promoting livelihoods and local marine economic development. However, this activity is facing many challenges such as inadequate marine spatial planning, unsynchronized technical infrastructure, negative impacts from climate change, environmental pollution, and conflicts ...
This trial aimed to evaluate the effects of stocking densities of 5-9 fish/m3 on the growth, survival rate and economic efficiency of Blackspotted croaker (Protonibea diacanthus) cultured in sea cages in Quảng Ninh province. The fish had an initial length of 16-18 cm and an average weight of 82.0 ± ...
Pacific oysters (Crassostrea gigas Thunberg, 1793) and estuarine oysters (Crassostrea rivularis Gould, 1861) are raised in open ocean environments, therefore they are strongly affected by changes in environment. Research on the current state of farming of pacific oysters and estuarine oysters is necessary to serve the sustainable development of aquaculture ...
THE EFFECTS OF TRAY DENSITY AND CARE REGIMES ON GROWTH AND SURVIVAL RATE OF SNOUT OTTER CLAM
This study aims to identify suitable density of suspended trays and care regime, which was conducted from February to November 2022 at Tay Van Boi, Lan Ha Bay, Cat Ba, Cat Hai - Hai Phong to improve growth, survival rates and helping to shorten the time for snout otter clam ...
DNA barcodes today use many standard DNA sequence regions to construct to identify, classify and discover species. DNA barcoding refers to DNA sequences, serving the identification and retrieval of species origin information. With the aim of building the best symbology that can represent DNA barcode sequences, in this study, we ...
Otter clam fanning in Van Don, Quang Ninh has been encountering difficulties because of poor quality of breeds and more frequent disease outbreaks. On that basis, it is necessary to conduct genetic studies to improve the source of breeds, especially the combination of quantitative inheritance and molecular genetics to select ...
Effect of temperature on making male monosex wattle necked softshell turtle (palea steindachneri)
The study was carried out to find out the temperature threshold for brooding three spiked eggs to switch to the male sex with a high rate. Eggs were selected from the first spawning litters of the year (April - May) and put into incubation, experiments were arranged in 02 treatments ...
A vast body of literature on fisheries efficiency, productivity and fisheries efficiency-related topics exists. This study applies a bibliometric analysis to review a sample of 183 scientific articles based on the Scopus database from 1995 to 2021. The results show that from 1995 to 2021, there was a significant increase ...
Research on the parasite (parasite) Nematopsis sp. on bivalve molluscs farmed mainly in Quang Ninh (clam, Pacific oysters (TBD), estuary oysters, Ben Tre clams) was carried out from June 2020 to July 2022. Phase 1 from June 2020 - May 2021, phase 2 from July 2021 - July 2022. Sampling ...
Stocking density is a key factor in aquaculture. This study was conducted to investigate the water quality, growth, survival rates and feed conversion ratio (FCR) when nursing Common carp fingerlings (Cyprinus carpio) by using biofloc technology with different stocking densities. Common carp fingerlings (35.57 ± 1.37 g/fish) were randomly stocked ...
Trial incubating carp seed by BIOFLOC technology with CARBON source from molasses and corn meal.
This study was conducted to investigate the water quality, growth, survival rates and feed conversion ratio (FCR) when rearing common carp (Cyprinus carpio) fingerlings by using biofloc technology (BFT) with carbohydrate source from molasses (RĐ) and corn starch (BN). Common carp fingerlings (33.5 ± 1.15 g/fish) were randomly stocked in ...
Koi (Cyprinus carpio haematopterus) fish samples collected in Hanoi and Bac Ninh, from October 2019 to December 2020, fish size from lOg - to 500g. The results of parasitological research on Koi fish have detected some species of ectoparasites on the skin, fins and gills of fish as follows: Ichthyophthyrius ...
This study was conducted to evaluate the effects of culture form and density on survival, growth, yield and economic efficiency of commercial clams in the waters of Van Don, Quang Ninh. Tuna with an initial length of 18.36 mm/head and an average weight of 4.12 g/head were used as initial ...
