Spawning frequency

Stromgren, T. and M.V. Nielsen. 1991. Spawning frequency, growth and mortality of Mytilus edulis larvae, exposed to copper and diesel oil. Aquat. Toxicol. 21 171-180. 

Terminal reproductive test = Partial life-cycle test Mature —> 28 d Time to 1st spawning, spawning frequency, no. of eggs, fertility, El hatching success... 

Spawning frequency ovarian development has been classified into asynchronous, batch synchronous and synchronous. Asynchronous development is associated with daily or close to daily spawning during the... 

Anesthetics. Ethyl amiaobenzoate [94-09-7] (benzocaiae), C2H22NO2, is the only anesthetic candidate that might allow spawned-out broodstock carcasses to be used for pet or human food. Studies are still required to determine which residues remain ia the carcasses (9). Electronarcosis is an alternative to chemical anesthesia that uses varying electrical frequencies to rapidly anesthetize fishes and allow gentie recovery. Electronarcosis has been used effectively on tilapia (Oreochromis sp.) and the common carp Cyprinus carpid) and the technique is being tested with other fishes (23,24). 

Epicoccum oryzae attacks rice, causing lesions that are pinkish to reddish in coloration. Another Epicoccum species was reported by Bitner (1972) To be the most common mold attacking sorghum spawn, comprising nearly 30% of all contaminated cultures. On The other hand, it represented only 5% of the contaminants on rye. The frequency with which this contaminant occurs variessubstantially. 

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