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Optimizing Procedures For Shipping Marine Fish Eggs Using White Seabass, Atractoscion Nobilis, As A Model
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2018
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Source: Aquaculture 493: 229-232
[PDF-180.60 KB]
Details:
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Journal Title:Aquaculture
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Description:As marine finfish aquaculture expands, there is an increasing interest in the ability to ship early life stages from breeding centers to hatcheries. Here we conducted a 24 h air shipping simulation with eggs of white seabass (WSB; Atractoscion nobilis).
We examined the effects of a pH buffer on water quality, post-shipping egg survival, and subsequent hatching success, at egg densities of 1000, 5000, 10,000, and 15,000 eggs/L. The pH buffer, 8.3 Trizma®, was tested at varying concentrations of zero (NT = 0.00 g/L), low (LT = 0.75 g/L), medium (MT = 1.5 g/L) and high (HT = 3.0 g/L). Shipping densities up to 5000 eggs/L consistently yielded >70% survival immediately after simulated shipment, hatching success >70%, and >45% survival 48 h after the simulations, when Trizma concentrations were under 1.5 g/L. At those densities, pH was maintained at ~8.0 when buffered at a minimum Trizma level of 0.75 g/L. The highest densities of 10,000 and 15,000 eggs/L yielded lower survival 0–6% after 24 h, regardless of pH buffer concentration.
Based on the results from these air-shipping simulations, we recommend WSB eggs be shipped in seawater with a maximum of 0.75 g/L Trizma® at densities no >5000 eggs/L. We believe this represents an important step in improving long distance transport protocols and provides useful guidance in air transport of other economically and ecologically important marine species.
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Source:Aquaculture 493: 229-232
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Rights Information:Accepted Manuscript
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Compliance:Library
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