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Abstract
For understanding the influence of the fish lives along the coastal rocks area and sea Farming-the yellow sea breem（Rhabdosargus sarba）on breed to expect to grow and hatch from eggs by the Tributyltin. The study will research the amount of egg and conceives the rate towards the growth of fish, functions of hatching from eggs, such as rate,genital gland organization variety,G.S.I. value and the H.S.I. value.…..etc., studying the result summary as follows:
The yellow sea breem experiment set(2.5μg/l,5μg/l,10μg/l) grows the fish after breeding to expect to was soaked by three stage partition TBTs, in producing the egg for a week start collecting to prognosticate to go to breed the period the last phase, the experiment result is as follows.(1)Breeds to expect each stage to grow the fish individual to equally produce the amount of egg and grow the fish a fertilizied egg quantity with average an Individual, make the data covariance examination result with the ANOVA and the Fisher LSD test,the set of 2.5μg/l of is anti- to its obvious difference(p<0.05), the set of 5μg/l and 10μg/l opposite also all has the obvious difference in the matched control(p<0.05)；the set of 10μg/l after second stage namely stop producing the egg, wasing found by dissection the female and male grows the fish genital gland to all present to atrophy the form.5 μg/l at the third stage after that is stop producing, the egg and genital gland all present to atrophy the form.(2)Breed to expect the matched control and the experimen set of equally conceive the rate, matched control:75.5%(whole periods), the set of 2.5 μg/l:74.9%(whole periods),the set of 5μg/l:68.7%( the first and second stages), the set of 10 μg/l:72.3%(only first stage), statistics the examination with the ANOVA and the Fisher LSD test to all have no obvious difference.(3)Breed to expect the matched control and the experiment set of equally hatch from eggs the rate, matched control:71.5%,(whole periods), the set of 2.5 μg/l:67.3%(whole periods), the set of 5 μg/l:49.6%( the first and second stages), the set of 10 μg/l:32.9%(first stage), depend on to soak the density more high it hatches from eggs the rate more low, statistics the examination with the ANOVA and the Fisher LSD test, at the first stage the set of 10 μg/l contain obvious difference(p<0.05), second stage the set of 5μg/l contain obvious difference(p<0.05), the set of 2.5μg/l then have no obvious difference with the matched control.(4)G.S.I. value first stage ends, statisticsing the examination with the ANOVA and the Fisher LSD test, only the set of 10μg/l of female and male growth the fish contain obvious difference(p<0.05).Another G.S.I. is worth the matched control and experiment a female and male before fish breed expect stage variety the difference was examined by covariance, the growth of male fish in the matched control, the set of 2.5μg/l、5μg/l、10μg/l in front and back the stage all has the obvious difference(p<0.05)；The growth of female fish only the set of 10μg/l in front and back the stage contain obvious difference(p<0.05).(5)The first stage ends and after female and male grow before fish breed expect the stage H.S.I. is worth to change the difference, statisticsing examination through the ANOVA and the Fisher LSD test to all have no obvious difference.(6)After the first stage sample hatch from eggs its fish fry, its matched control and the experiment a value with average S.A.I., was only hads by the covariance examination the set of 10 μg/l contain obvious difference(p<0.05)；Breed the whole period matched control, the set of 2.5 μg/l、5μg/l a covarianceses examine the result to have no obvious difference.(7) the set of 10 μg/l and 5 μg/l adopt to grow the fish genital gland on 24th day after soaking for the second time, find the genital gland all has already atrophied; the set of 2μg/l are breeding the testis of last phase of season to have already presented the degeneration phenomenon, but ovary inside it is thus clear that cumulate ovary cell, show the growing of fish returns to be keeping on the yolk to pile up and producing the egg。
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