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Shellfish Diet 1800® is a unique mix of five marine microalgae - Isochrysis, Pavlova, Tetraselmis, Thalassiosira weissflogii and Thalassiosira pseudonana - species that have demonstrated success with a wide variety of marine and freshwater shellfish, including: oysters, clams, mussels, scallops, and crustaceans.
When water is circulated with a centrifugal pump, such as with an upweller, add in front of the pump intake and the pump will disperse the algae cells.
When feeding into open tanks or header tanks, pre-dilute the algae 10:1 with system water.
Add system water to a small bucket.
Add Shellfish Diet 1800 and stir.
DO NOT BLEND; it is unnecessary and may damage the algae cells.
Pour into larvae tank or spat.
Pouring through a 20–micron screen can improve dispersion.
Feed according to the table below. Adjust dosage to meet the needs of your hatchery and larvae.
Refrigerate bottle when not in use.
Feed according to shell length. Shell length on a given day is an estimate. Larviculture may run up to 20 days.
Daily Feed Rates per million larvae, for Crassostrea virginica (from FAO Protocol ‘Hatchery culture of bivalves 2004’)
DAY | MEAN SHELL LENGTH | SHELLFISH DIET 1800(ML) | LITERS OF LIVE ISOCHRYSIS (4X10^6 CELLS/ML) |
|
---|---|---|---|---|
2 | 75 | 0.4 | = | 0.4 |
3 | 95 | 0.6 | = | 0.6 |
4 | 100 | 0.7 | = | 0.7 |
5 | 115 | 2.2 | = | 2.1 |
6 | 130 | 3.8 | = | 3.6 |
7 | 145 | 5.4 | = | 5.1 |
8 | 160 | 6.9 | = | 6.6 |
9 | 190 | 9.9 | = | 9.5 |
10 | 220 | 13.0 | = | 12.4 |
11 | 240 | 15.1 | = | 14.4 |
12 | 260 | 17.1 | = |
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