Compositions and methods for enhanced aquatic farming and aquarium fish husbandry
The subject invention provides microbe-based products, as well as their use, for enhancing aquaculture. In particular, the subject invention provides materials and methods for producing healthy and high quality farmed fish by applying yeast and/or bio surfactant-based compositions to a fish farm. In one embodiment, the subject invention improves the environment in which the fish are farmed. In another embodiment, the subject invention provides a highly nutritious fish feed, as well as methods of feeding fish at low cost.
1. A method of reducing carbon dioxide and/or hydrogen sulfide in fish farm water, which comprises applying a composition comprising a first yeast culture comprising cells of an inactivated Starmerella bombicola yeast and a sophorolipid (SLP) and a second yeast culture comprising cells of an inactivated Pseudozyma aphidis yeast and a mannosylerythritol lipid (MEL), to the fish farm water, said composition comprising no living yeast cells, wherein the Starmerella bombicola yeast of the first yeast culture and the Pseudozyma aphidis yeast of the second yeast culture are inactivated via pasteurization;
wherein said reduction in carbon dioxide and/or hydrogen sulfide results in one or more of the following:
reduced carbon dioxide asphyxiation in fish growing in the fish farm water;
reduced hydrogen sulfide toxicity in the fish; and/or
increased oxygen levels in the fish farm water.
2. The method of claim 1 , wherein the fish farm is a pond, lake, ocean, fiord, raceway, river, aquarium, tank or cage.
3. The method of claim 1 , comprising measuring a level of hydrogen sulfide in the fish farm water.