logging in or signing up Bullminnow 2005 Oceane Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINTLite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 124 Category: Entertainment License: All Rights Reserved Like it (0) Dislike it (0) Added: January 02, 2008 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Bull Minnow Aquaculture: Bull Minnow Aquaculture LaDon Swann Auburn University Mississippi-Alabama Sea Grant ConsortiumBullminnow Aquaculture: Bullminnow Aquaculture Scientific Name Fundulus grandis Common Name Gulf Killifish Regional Names Bullminnow - Alabama Mudminnow - Texas Cocahoe Minnow - Louisiana Mummichogs - East Coast (F. heteroclitus)Bullminnow Characteristics: Bullminnow Characteristics Estuarine resident Shallow waters of oyster bars, tidal creeks, salt marsh pools, and bayous. Sexes Females - uniform greenish silver, darkening from bottom to top. Males - Darker green with prominent gold speckling. Black patch ventrally along gill flap when ready to spawn. Bullminnow Characteristics: Bullminnow Characteristics Spawning External fertilization Fractional spawners Exhibit semilunar spawning cycles Adhesive eggs Spawning above 68oC. Spawn March to October. Peak spawn - March and April Minor peak- late August to early SeptemberAquaculture Candidate?: Aquaculture Candidate? Advantages Popular live baitfish used to catch: Flounder Speckled Trout Redfish Price Wholesale -$70-$100/1000 or $7-10/lb. Retail -$1.50-$2.50/dozen or $12-20/lb.Aquaculture Candidate?: Aquaculture Candidate? Hardy Tolerates wide range of water quality. Handling stress is minimal Low mortality at retail level Long-lasting on the hook Rapid growth Spawn to Harvest - 2 to 6 months Aquaculture Canidate?: Aquaculture Canidate? Disadvantage Need large number of broodfish. Females produce a relatively low number of eggs compared to other culture species. 10-200 eggs per spawn up to 1200 eggs per spawning season Supply & Demand: Supply & Demand Demand >>> Supply April, May, June Demand>Supply July, Aug, SepImportant Considerations: Important Considerations Water quality Salinity (single most important factor) >=5 ppt for efficient growth and production. Dissolved oxygen Generally above 4.0mg/L Important Considerations: Important Considerations Pond design Small size (1/4 acre) or narrow for easy seining. Average depth - 1 meter. Smooth bottom for seining. Graded for complete drainage. Catch basin for harvest. Free of aquatic vegetationProduction Systems: Production Systems Three-pond system Brood Pond Hatching Pond Grow-out Pond ¼ acre brood pond ¼-1 acre hatching pond 1-5 acre grow-out pondBrood Pond: Brood Pond Stock brood fish in January at 10,000 fish/acre. 2:1 females:male. Feed high-protein feed at 3% body weight per day. Add spawning mats when water temperature reaches 68oC.Spawning Mats: Spawning Mats Place in shallow water at pond edges. Use PVC trellis to keep spawning mat off bottom. Remove after 1 week. Estimate eggs. Transfer to hatching pond. Limit transfer to 2 week period for uniform fry size.Hatching Pond: Hatching Pond Filter incoming water. Fertilize 40lbs/acre 12-12-12 Treat pond for air-breathing insects. Stock with 1.5 million eggs/acre. Eggs will hatch in 2 to 3 weeks. Expect 1 to 1.2 million fry. Feed high-protein minnow feed at 5lb/acre/day. Stock fry to grow-out ponds when they reach 0.5 grams or 1000 fish/lb. Grow-out Pond: Grow-out Pond Stock fry at a rate of 50,000 to 200,000 fish/acre. Stocking density dependent on market size. Higher rates means smaller fish at harvest Feed 10% of stocked wt/day for 10 days 5% body weight there after. Sample fish every 2 weeks and adjust feed accordingly.Production Systems: Production Systems Two-pond system Brood Pond Hatch and Grow-out Pond Leave eggs in ponds Fewer ponds Less control of densities ¼ acre brood pond 1-5 acre hatching/grow-out pondHarvest: Harvest Partial Harvest Trap Seine Complete Harvest DrainPost-Harvest : Post-Harvest Place fish in holding tank for 24 hr without feed. Get accurate weights and counts. Recover from handling stress. Purge gut contents which minimizes water fouling during transport.Delivery or Pick-up?: Delivery or Pick-up? Survey of bait dealers suggest they would pay the same price for pick-up or delivery. Cost savings to wholesaler if the bait dealer picks-up his fish. Fuel cost Labor cost Liability for the product Concentrate efforts on harvest and supply You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
Bullminnow 2005 Oceane Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINTLite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 124 Category: Entertainment License: All Rights Reserved Like it (0) Dislike it (0) Added: January 02, 2008 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Bull Minnow Aquaculture: Bull Minnow Aquaculture LaDon Swann Auburn University Mississippi-Alabama Sea Grant ConsortiumBullminnow Aquaculture: Bullminnow Aquaculture Scientific Name Fundulus grandis Common Name Gulf Killifish Regional Names Bullminnow - Alabama Mudminnow - Texas Cocahoe Minnow - Louisiana Mummichogs - East Coast (F. heteroclitus)Bullminnow Characteristics: Bullminnow Characteristics Estuarine resident Shallow waters of oyster bars, tidal creeks, salt marsh pools, and bayous. Sexes Females - uniform greenish silver, darkening from bottom to top. Males - Darker green with prominent gold speckling. Black patch ventrally along gill flap when ready to spawn. Bullminnow Characteristics: Bullminnow Characteristics Spawning External fertilization Fractional spawners Exhibit semilunar spawning cycles Adhesive eggs Spawning above 68oC. Spawn March to October. Peak spawn - March and April Minor peak- late August to early SeptemberAquaculture Candidate?: Aquaculture Candidate? Advantages Popular live baitfish used to catch: Flounder Speckled Trout Redfish Price Wholesale -$70-$100/1000 or $7-10/lb. Retail -$1.50-$2.50/dozen or $12-20/lb.Aquaculture Candidate?: Aquaculture Candidate? Hardy Tolerates wide range of water quality. Handling stress is minimal Low mortality at retail level Long-lasting on the hook Rapid growth Spawn to Harvest - 2 to 6 months Aquaculture Canidate?: Aquaculture Canidate? Disadvantage Need large number of broodfish. Females produce a relatively low number of eggs compared to other culture species. 10-200 eggs per spawn up to 1200 eggs per spawning season Supply & Demand: Supply & Demand Demand >>> Supply April, May, June Demand>Supply July, Aug, SepImportant Considerations: Important Considerations Water quality Salinity (single most important factor) >=5 ppt for efficient growth and production. Dissolved oxygen Generally above 4.0mg/L Important Considerations: Important Considerations Pond design Small size (1/4 acre) or narrow for easy seining. Average depth - 1 meter. Smooth bottom for seining. Graded for complete drainage. Catch basin for harvest. Free of aquatic vegetationProduction Systems: Production Systems Three-pond system Brood Pond Hatching Pond Grow-out Pond ¼ acre brood pond ¼-1 acre hatching pond 1-5 acre grow-out pondBrood Pond: Brood Pond Stock brood fish in January at 10,000 fish/acre. 2:1 females:male. Feed high-protein feed at 3% body weight per day. Add spawning mats when water temperature reaches 68oC.Spawning Mats: Spawning Mats Place in shallow water at pond edges. Use PVC trellis to keep spawning mat off bottom. Remove after 1 week. Estimate eggs. Transfer to hatching pond. Limit transfer to 2 week period for uniform fry size.Hatching Pond: Hatching Pond Filter incoming water. Fertilize 40lbs/acre 12-12-12 Treat pond for air-breathing insects. Stock with 1.5 million eggs/acre. Eggs will hatch in 2 to 3 weeks. Expect 1 to 1.2 million fry. Feed high-protein minnow feed at 5lb/acre/day. Stock fry to grow-out ponds when they reach 0.5 grams or 1000 fish/lb. Grow-out Pond: Grow-out Pond Stock fry at a rate of 50,000 to 200,000 fish/acre. Stocking density dependent on market size. Higher rates means smaller fish at harvest Feed 10% of stocked wt/day for 10 days 5% body weight there after. Sample fish every 2 weeks and adjust feed accordingly.Production Systems: Production Systems Two-pond system Brood Pond Hatch and Grow-out Pond Leave eggs in ponds Fewer ponds Less control of densities ¼ acre brood pond 1-5 acre hatching/grow-out pondHarvest: Harvest Partial Harvest Trap Seine Complete Harvest DrainPost-Harvest : Post-Harvest Place fish in holding tank for 24 hr without feed. Get accurate weights and counts. Recover from handling stress. Purge gut contents which minimizes water fouling during transport.Delivery or Pick-up?: Delivery or Pick-up? Survey of bait dealers suggest they would pay the same price for pick-up or delivery. Cost savings to wholesaler if the bait dealer picks-up his fish. Fuel cost Labor cost Liability for the product Concentrate efforts on harvest and supply