Marical, Inc.

David R Russell

Marlies Betka

H William Harris, Jr

Jacqueline Nearing

Edward M Brown

Steven Harold Jury

Timothy Linley

Jacqueling Noaring

William Harris, Jr

The invention relates to methods for raising marine fish in freshwater. The methods involve transferring fish to freshwater containing at least one Polyvalent Cation Sensing Receptor (PVCR) modulator in an amount sufficient to increase expression and/or sensitivity of at least one PVCR; and adding feed for fish consumption to the freshwater, wherein the feed comprises an amount of NaCl sufficient to contribute to a significant increased level of the PVCR modulator in serum of the marine fish.

Growing marine fish in fresh water

The invention relates to methods, compositions and kits for raising marine fish in freshwater. The methods involve adding at least one Polyvalent Cation Sensing Receptor (PVCR) modulator to the freshwater in an amount sufficient to increase expression and/or sensitivity of at least one PVCR; and adding feed for fish consumption to the freshwater, wherein the feed comprises an amount of NaCl sufficient to contribute to a significant increased level of the PVCR modulator in serum of the marine fish.

The invention relates to methods, compositions and kits for improving the raising of pre-adult anadromous fish, or preparing pre-adult anadromous fish for transfer to seawater. The methods involve adding at least one Polyvalent Cation Sensing Receptor (PVCR) modulator to the freshwater in an amount sufficient to increase expression and/or sensitivity of at least one PVCR; and adding feed for fish consumption to the freshwater, wherein the feed comprises an amount of NaCl sufficient to contribute to a significantly increased level of the PVCR modulator in serum of the pre-adult anadromous fish.

Methods for raising pre-adult anadromous fish

Methods, compositions and kits for improving the raising of pre-adult anadromous fish, or preparing pre-adult anadromous fish for transfer to seawater. The methods involve adding at least one Polyvalent Cation Sensing Receptor (PVCR) modulator to the freshwater in an amount sufficient to increase expression and/or sensitivity of at least one PVCR; and adding feed for fish consumption to the freshwater, wherein the feed comprises an amount of NaCl sufficient to contribute to a significantly increased level of the PVCR modulator in serum of the pre-adult anadromous fish.

The present invention relates to methods of imprinting fish in freshwater with at least one odorant for the fish and causing the imprinted fish to react to the odorant in seawater, wherein the fish are maintained in freshwater prior to transfer to seawater, The method includes: adding at least one Polyvalent Cation Sensing Receptor (PVCR) modulator to the freshwater in an amount sufficient to modulate expression and/or sensitivity of at least one PVCR, the PVCR modulator being one which alters olfactory sensing of the fish to the odorant; adding feed for fish consumption to the freshwater, the feed containing the odorant and an amount of NaCl sufficient to contribute to a significantly increased level of the PVCR modulator in serum of the fish upon consumption of the feed, whereby the fish are imprinted with the odorant; transferring the imprinted fish to seawater; and providing a source of said odorant in the seawater to which the imprinted fish are transferred, thereby causing the imprinted fish to react to said odorant. The present invention also includes methods of homing or attracting fish, as well as methods for repelling fish by modulating the expression and/or sensitivity of the PVCR in the olfactory apparatus of the fish.

Methods for growing and imprinting fish using an odorant

The present invention relates to methods of imprinting fish in freshwater with at least one odorant for the fish and causing the imprinted fish to react to the odorant in seawater, wherein the fish are maintained in freshwater prior to transfer to seawater. The method includes: adding at least one Polyvalent Cation Sensing Receptor (PVCR) modulator to the freshwater in an amount sufficient to modulate expression and/or sensitivity of at least one PVCR, the PVCR modulator being one which alters olfactory sensing of the fish to the odorant; adding feed for fish consumption to the freshwater, the feed containing the odorant and an amount of NaCl sufficient to contribute to a significantly increased level of the PVCR modulator in serum of the fish upon consumption of the feed, whereby the fish are imprinted with the odorant; transferring the imprinted fish to seawater; and providing a source of said odorant in the seawater to which the imprinted fish are transferred, thereby causing the imprinted fish to react to said odorant. The present invention also includes methods of homing or attracting fish, as well as methods for repelling fish by modulating the expression and/or sensitivity of the PVCR in the olfactory apparatus of the fish.

The invention relates to methods, compositions and kits for improving the raising of pre-adult anadromous fish, or preparing pre-adult anadromous fish for transfer to seawater. The methods involve adding PVCR modulators (e.g., calcium and/or magnesium) to the freshwater in an amount sufficient to increase expression and/or sensitivity of at least one PVCR; and adding feed for fish consumption to the freshwater, wherein the feed contains an amount of NaCl sufficient to contribute to a significantly increased level of the PVCR modulator in serum of the pre-adult anadromous fish.

The invention relates to methods, compositions and kits for improving the raising of pre-adult anadromous fish, or preparing pre-adult anadromous fish for transfer to seawater. The methods involve adding PVCR modulators (e.g., calcium and/or magnesium) to the freshwater in an amount sufficient to increase expression and/or sensitivity of at least one PVCR; and adding feed for fish consumption to the freshwater, wherein the feed comprises amounts of NaCl and an amino acid sufficient to contribute to a significantly increased level of the PVCR modulator in serum of the pre-adult anadromous fish.

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Alfred, ME, United States of America

David R Russell