A MODEL EVALUATING THE CONTRIBUTION OF ENVIRONMENTAL-FACTORS TO THE PRODUCTION OF RESTING EGGS IN THE ROTIFER BRACHIONUS-PLICATILIS

被引:20
作者
LUBZENS, E [1 ]
WAX, Y [1 ]
MINKOFF, G [1 ]
ADLER, F [1 ]
机构
[1] HEBREW UNIV JERUSALEM,DEPT STAT,STAT CONSULTING UNIT,JERUSALEM,ISRAEL
关键词
ROTIFER; RESTING EGGS; LOGISTIC MODEL; POLY-LINEAR MODEL; GENERALIZED LINEAR MODEL; SALINITY; FOOD CONCENTRATION;
D O I
10.1007/BF00025830
中图分类号
Q17 [水生生物学];
学科分类号
071004 ;
摘要
The production of resting eggs by the rotifer Brachionus plicatilis was tested at four salinities (9, 18, 27 and 36 parts per thousand) and six concentrations of the alga Chlorella stigmatophora (0.25, 0.5, 1.0, 2.0, 4.0 and 6.0 x 10(6) cells ml-1). The results indicated that resting eggs were produced only at two salinities (9 parts per thousand and 18 parts per thousand) and that their number was affected by the amount of food provided. A model consisting of two generalized linear sub-models was built to evaluate the contribution of each of the tested food concentrations at the two salinities. The sub-models were used to distinguish between two different components of resting egg production: one related to the presence or absence of resting egg production, and the other to the number of resting eggs produced, given that production had occurred. Besides indicating the best combination of salinity and food concentration for obtaining large numbers of resting eggs, they revealed the contribution of internal population factors that were not controlled in the course of the experiment. The model identified the positive contribution of the relative number of females to males, and the negative association between high rotifer densities and the production of resting eggs. The results of the present study help in defining the optimal conditions for mass production of resting eggs, which are of potential importance in aquaculture.
引用
收藏
页码:127 / 138
页数:12
相关论文
共 27 条
[1]  
DIXON WJ, 1983, BMDP STATISTICAL SOF
[2]  
Fukusho K, 1983, S INT AQ C CHIL, P361
[3]   ANALYSIS OF DISPERSION OF MULTINOMIAL RESPONSES [J].
HABERMAN, SJ .
JOURNAL OF THE AMERICAN STATISTICAL ASSOCIATION, 1982, 77 (379) :568-580
[4]  
HAGIWARA A, 1988, NIPPON SUISAN GAKK, V54, P577
[5]   RESTING EGG FORMATION AND HATCHING OF THE S-TYPE ROTIFER BRACHIONUS-PLICATILIS AT VARYING SALINITIES [J].
HAGIWARA, A ;
LEE, CS ;
MIYAMOTO, G ;
HINO, A .
MARINE BIOLOGY, 1989, 103 (03) :327-332
[6]  
HAGIWARA A, 1988, NIPPON SUISAN GAKK, V54, P569
[7]  
HINO A, 1985, B JPN SOC SCI FISH, V51, P511
[8]  
HINO A, 1988, NIPPON SUISAN GAKK, V54, P1329
[9]  
HINO A, 1977, B JPN SOC SCI FISH, V43, P1147
[10]  
Hirata H, 1980, MIN REV DATA FILE FI, V1, P27