How long do dragon fruit seeds take to germinate?

germinate

The dragon fruit which is propagated through seeds takes approximately about 1-4 weeks for the seeds to germinate, but they can be made to germinate even faster. The seeds that are obtained from within the fruit should be washed thoroughly with water so that there is no flesh attached to them and are left to dry overnight. Planting the seeds in a tray, close to the upper surface of the soil, and covering the tray with a plastic cover to help germinate the seeds within 10 or 15 days.

Which species are best for Bio floc fish farming?

Bio floc

 Bio floc systems work best with species that are able to derive nutritional benefit from the direct consumption of floc. Bio floc systems are most suitable for species that can tolerate high solids concentration in water and are generally tolerant of poor water quality. Almost all Bio floc systems are used to grow shrimp, tilapia or carps. Some of the species like hybrid stripes bass and channel catfish are main examples of fish that are not suitable for Bio floc systems as they do not tolerate water with high solids concentrations and they do not have adaptations to filter solids from water.

How Biofloc is useful in fish farming?

Biofloc

In the aquaculture system, the strong influential factors are the feed cost and the limiting factors is the water or land availability and high stocking density and rearing of aquatic animals require wastewater treatment.

The problem of extensive fish culture in ponds is to keep the water quality and before bioflocs way was to recycle 10 % of the water frequently. But in some places, Water is not present in abundance and replacing the old water with a new one disturbs the growth of fish. So, Biofloc came to solve all these difficulties.

What is the principle of Biofloc fish farming?

Biofloc

Biofloc technology is not only effective in treating the waste but grants nutrition to the aquatic animal. The higher C:N ratio is maintained through the addition of carbohydrates source and the water quality is improved through the production of high-quality single-cell microbial protein. In such conditions, dense microorganisms develop and function as bioreactors controlling water quality and protein food sources. Immobilization of toxic nitrogen species occurs rapidly in Biofloc because the growth rate and microbial production per unit substrate of heterotrophs are ten times greater than that of the autotrophic nitrifying bacteria. This Biofloc technology is based on the principle of flocculation within the system.

 How are the fisheries resources in Gujarat?

fisheries

Gujarat is the top position in the fisheries sector and then it covers 1/5th part of India along the coast as well as it is exclusive economic zone. It mainly contributes about 20 % of total marine production. It has a long coastline extending to 1600 km accounts for 19.70% of the total coastline of the country. It has a continental shelf area of 0.18 million Sq.km, an Exclusive Economic Zone (EEZ) of 0.214 sq., which occupies 32% of the continental shelf area and 10% of the total Exclusive Economic Zone.

The fisheries resources of Gujarat include Elasmobranchs, Bombay ducks, Sciaenids, Shrimps, Seer fishes, Tunas, Catfishes, Lizard fishes, Threadfin Breams, Pomfrets, Bull’s eyes, Carangids, Anchovies, Ribbon fishes, Croakers, Prawns, Lobsters, and Cephalopods.