Fisheries Science

Office Online

Journal Online

Download

Information

月刊，1984年创刊
主管：内蒙古自治区教育厅
主办：包头医学院
主编：赵云山
特邀主编：高长青
编辑出版：包头医学院学报编辑部
国际刊号：ISSN 1006－740X
国内刊号：CN 15－1182/R
邮发代号：16-292

Links

2015 Vol. , No. 8 Published: 2015-08-25

Article

	469	Effects of Feeding Patterns on Growth,Food Intake and Immunity of Halfsmooth Tongue-sole Cynoglossus semilaevis and on Water Quality in an Industrial Aquaculture
		LIU Yang,LI Yong,WANG Hua,ZHOU Bangwei,WANG Xiaochen,ZHAO Ningning
		The 5 × 2 two‐factor random animal experiment was conducted in the industrial culture condition with closed recirculation aquaculture system for 56 days to investigate the effect of monthly satiation de‐gree (MSD) and daily feeding ratio(DFR) on growth ,water quality ,food intake and immunity of juvenile halfsmoth tongue‐sole Cynoglossus semilaevis Günther with body weight of (291 .47 ± 4 .23) g and to ex‐plore an optimal feeding mode to improve efficiency of economy and ecology .The juveniles were fed at four levels of 80% ,90% ,100% ,and 110% of M SD and tw o levels of DFR including 3 times a day at a ratio of 42(first)∶29 (second)∶29(third) ,and 1∶1∶1 ,equal amount each time ,with 8 triplicate treatments . The results showed that MSD had very significant effect on daily weight gain (DWG) ,specific growth rate (SGR) and daily food intake(DFI) (P<0 .01) ,and that DFR also had significant effect on DWG ,SGR and food conversion ratio (FCR)(P<0.05) .Under inequality feeding ,there were 53 .68% higher DWG and 37 .31% higher SGR in 100% MSD than 80% MSD (P<0 .01) .In equality feeding ,however ,there were 43 .73% higher DWG and 36 .11% higher SGR in 100% MSD than 80% MSD (P<0.01) ,with the maxi‐mal daily weigh gain (3 .60 ± 0 .18) g under 100% MSD and equality feeding .Both MAD and DFR showed significant effect on the relative concentration of ammonia in water (P<0 .01) .There were 72 .22% higher (inequality feeding) (P<0 .05) and 117 .77% higher (equality feeding)(P<0.01)relative concentration of ammonia at 110% level than 90% level ,the maximal concentration of ammonia at 110% level .Both DFR and MSD had no significant effect on activities of lysozyme and superoxide dismutase (SOD) .It is conclu‐ded that feeding of 90% monthly satiation degree with different amount feeding is suitable for both grow th and water environment ,and that the combination feeding of 100% monthly satiation degree with equiva‐lence feeding is used for the best grow th .
		2015 Vol. (8): 469-475 [Abstract] ( 88 ) HTML (0 KB) PDF (648 KB) ( 269 )

	476	Effect of Dietary Phospholipid Levels on Fatty Acid Composition in Body Tissues of Catfish (Pangasius sutchi)
		MA Yanqun,HUANG Kai,CHEN Tao,YU Dan
		A feeding trial was conducted to determine the effects of dietary phospholipid level on fatty acid composition in body of catfish (Pangasius sutchi) .Five test diets containing different phospholipid supple‐ment levels of 0% in group 1 ,and 1% in group 2 ,2% in group 3 ,3% in group 4 ,and ,4% in group 5 were fed to the catfish for 56 days .The results showed that the content of C18 :3n3 in the body tissues (liver ,muscle ,abdominal fat) was increased with increasing dietary phospholipid level ,while the change of C18:1n9 content was opposite .The HUFA content in liver in group 5 was the maximum among groups , while the content in gourp 1 was the minimum .The content of fatty acid class in the three body tissues fol‐lowed that :∑SFA> ∑MUFA > ∑PUFA> ∑ HUFA .The major SFA ,MUFA and HUFA in diets and body tissues all were C16 :0 ,C18 :1n9 and C22 :6n3 ,respectively .The findings indicate that the fatty acid composition of liver ,muscle ,abdominal fat is affected by the dietary fatty acid composition to some ex‐tent .The maximal HUFA transformation ability was observed in the liver and muscle tissues in group 5 .
		2015 Vol. (8): 476-484 [Abstract] ( 62 ) HTML (0 KB) PDF (776 KB) ( 258 )

	485	Effects of Glycerol on Growth and Polysaccharides Accumulation of Alga Isochrysis zhanj iangensis
		YANG Haibo,WANG Qian,CAO Xupeng,XUE Song
		Effects of glycerol concentration (41 mmol/L ,110 mmol/L and 206 mmol/L ) on grow th and polysaccharides accumulation of alga Isochrysis zhanjiangensis were investigated in rich - nitrogen and limited-nitrogen culture systems by means of single factor experiments .The results showed that the cell density ,content and yield of polysaccharides were higher in 41mmol/L glycerol than those in the other glycerol concentrations . T he cell density , content and yield of polysaccharides in rich‐nitrogen culture system were 7 .73 × 107 cells/mL ,16 .21% and 0 .32 g/L ,respectively ,while those in limited‐nitrogen culture system were 5 .29 × 107 cells/mL ,54 .43% and 1 .02 g/L ,respectively .These data explained that lower glycerol concentration and higher nitrogen concentration were advantageous to the growth of I . zhanjiangensis (the biomass in the former was 1 .46 times as that in the later) ,however ,when glycerol concentration and nitrogen concentration were lower at the same time , the cell accumulated more polysaccharides (the content and the yield of polysaccharides of the later were 3 .36 times and 3 .19 times as the former ,respectively ) .No matter the difference in nitrogen supply ,with the increasing concentration of glycerol ,the cell density and polysaccharides content of I .zhanjiang‐ensis showed a decreasing trend . It indicated that high concentration of glycerol inhibited the growth of I .zhangjiangensis and the accumulation of polysaccharides .So ,I .zhangjiangensis should be cultured in the limited‐nitrogen culture system with low concentration of glycerol at inoculation to promote the accumulation of polysaccharides . The findings will provide reference with producing natural products of high value .
		2015 Vol. (8): 485-490 [Abstract] ( 74 ) HTML (0 KB) PDF (712 KB) ( 258 )

	491	Phosphorus Cycling in Intensive Grass Carp Culture
		ZHANG Man,GU Qianhong,LI Xuejun,SONG Dongying,ZHOU Chuanjiang
		Understanding of the phosphorus cycling approach in aquaculture ecosystem provides theory basis with improvement of cultural benefits and decrease in phosphorus emissions . We therefore manipulated different phosphorus concentrations in fodder to study the influences of phosphorus concentration on grow th ,feed efficiency and phosphorus cycling in intensive aquaculture ponds of grass carp Ctenopharyngodon idellus .Fish in two treatment groups (A and B groups) were fed compound feed containing phosphorus content of 1 .02% and 0 .52% . A ten‐weeks observation showed that the feed efficiency was 68 .4% and mass increasing rate was 72 .3% in group A .In contrast ,the feeder efficiency was 77 .3% and mass increasing rate was 74 .3% in group B . There were significantly higher fodder efficiency and greater yield in group B than those in group A .Treatment with low phosphorus fodder led to more phytoplankton biomass ,suggesting that it could pump phosphorus from sediments and accelerate the efficiency of material circulation through food chain .The result explained the reason why treatment with low phosphorus fodder led to higher fodder efficiency and greater fish field . Increasing phosphorus concentration in fodder was not beneficial to improve fish field in intensive grass carp .On the contrary ,it could lead to more phosphorus retention in the sediment and pollution in the water .Suitable phosphorus contents in fodder can accelerate the grow th of phytoplankton directly ,ultimately getting satisfied fish field and protecting environment simultaneously .
		2015 Vol. (8): 491-496 [Abstract] ( 89 ) HTML (0 KB) PDF (779 KB) ( 373 )

	497	Types and Number of Chromatophores and Carotenoid Contents in Various Parts of Blood Parrot (Amphilophus)
		MU Chunyan,ZHENG Shuming,REN Shengjie,RAO Yuan,CHEN Pengyu
		The morphology and number of chromatophores and carotenoids contents were observed in blood parrot with various body colors including black ,black‐yellow ,yellow ,and red colors under a microscope and measured by ultraviolet visible spectrophotometer .The results showed that the black blood parrots had many dendritic and dot shaped melanoma cells containing a lot of melanin granules ,and had a small amount of yellow pigment cells with light color on the whole body .The center cell body diffusion ,slender branches ,and weak aggregation in the dendritic melanocytes with brown black pigment granules were found in black yellow blood parrot with many large black yellow chromatophores .A large amount of yellow pigment cells was distributed on the whole body of black yellow blood parrot ,with a few melanocytes .The red pigment cells were covered on the red blood parrot body ,with scarce melanin cells and small amount of yellow pigment cells .There were significant differences in carotenoid contents in flesh ,scales ,fins and skins between red color blood parrots and black ,black‐yellow ,and yellow blood parrots (P<0 .01) ,without significant difference in carotenoid contents in the black ,black‐yellow ,and yellow blood parrots (P>0 .05) .The findings provides a theoretical basis with further study on mechanism of chromatophorogenesis .
		2015 Vol. (8): 497-501 [Abstract] ( 84 ) HTML (0 KB) PDF (2174 KB) ( 614 )

	502	Tolerance of Mantis Shrimp Oratosquilla kempi to Water Temperature,Salinity and pH
		WU Yaohua,ZHAO Yanxia
		The tolerance range of healthy mantis shrimp ,Oratosquillakempi ,with body length of (10 .0 ± 0 .5 ) cm to water temperature , salinity and pH was investigated with progressive alteration in a laboratory .The mantis shrimp was shown to have strong adaptability to variation in salinity , water temperature and pH ,with the optimal ranges of 18—30 in salinity ,24-33 ℃ in water temperature and 7.0—9 .0 in pH . Only weak mantis shrimp were found to be dead at a salinity of 14 or 36 ,water temperature of 14 or 35 ℃ ,and pH 5 .0 or 10 .0 indicating that O .kempi is an euryhaline shrimp species with excellent tolerance to great fluctuation in water temperature ,salinity and pH .
		2015 Vol. (8): 502-505 [Abstract] ( 88 ) HTML (0 KB) PDF (708 KB) ( 295 )

	506	Biology of Triplophysa crassilabris
		YAN Sili,GUO Yanshu,YANG Jun,GUO Zhenwei,ZENG Xiaoqin
		This article reports the biology of Triplophysa crassilabris collected at Xiaman village , Ruoergai County ,and Muke Township ,Hongyuan district in Western Sichuan Plateau from June to July in 2011 and August in 2013 .The sampled fish had body length (L) from 39 .0 mm to 71 .3 mm and body weight (m) from 0 .68 g to 4 .57 g ,and was divided into five age classes ,with the majority of 3 years old class . T . crassilabris feeds mainly on algae , plant debris and insect larvae , and showed homometric growth .The condition factor was found to be increased in the female individuals from 1 year old to 3 years old ,and to be decreased gradually with age 3 years old towards . The male individuals had elevated condition factor within 1 year old and 2 years old and afterwards gradual decrease with age .The fish spawn in batch from early June to mid -August in the aquatic plants and gravels .The fish had adhesive eggs , with absolute fecundity ranging from 922 to 4436 ,increasing as increase in age .
		2015 Vol. (8): 506-509 [Abstract] ( 45 ) HTML (0 KB) PDF (921 KB) ( 333 )

	510	Detection of Drug Resistance Phenotypes and Genes in Vibrio anguillarum from Turbot Scophthalmus maximus
		JIN Xiaomin,GE Muxiang,ZHANG Yanying,FANG Hai,CHEN Cuizhen
		The drug‐resistance was tested by Kirby‐Bauer method ,and four drug‐resistance genes including TEM against β‐lactamase genotypes ,ant(3″)‐Ⅰagainst aminoglycoside ,Sul1 against sulfonamides and tet (A) against tetracyclines were detected by PCR method in 30 bacterial strains isolated from turbot Scoph‐thalmus maximus infected by Vibrio anguillarum to investigate the correlation between the drug resistance phenotypes and the drug resistance genotypes in V .anguillarum .The results showed that genes TEM , ant(3″)‐Ⅰand Sul1 were detected in all strains tested except tet (A ) gene in the experiment .All strains were found to be multi‐drug resistant ,most of which were resistant to 6-8 antibiotics .There was a cer‐tain relationship between the drug resistance phenotype and the related resistance genes ,without entirely corresponding .
		2015 Vol. (8): 510-514 [Abstract] ( 72 ) HTML (0 KB) PDF (1083 KB) ( 169 )

	515	Effects of Morphological Characters on Body Weight in 4-Month-Old Stone Bream
		HUANG Weiqing,ZHOU Ruifa,XIE Youliang,ZHOU Shaofeng,XlA Daoyan,ZHANG Yi,CHEN Shixi
		The correlation of morphological characteristics of the 4‐month‐old stone bream (Oplegnathus f asciatus)was studied ,and the body weight ,path coefficient and determination coefficient were calculated via path analysis .The results showed that the Pearson correlations between every two metric traits were ranged from 0 .065 to 0 .949 ,with significance (P<0 .01);the data showed that the effect of morphomet‐ric traits on body weight was different ,the trait with the strongest direct effect on body weight showed effect on body depth ,with path coefficient of 0 .596 ,and determination coefficient of 0 .3552 .The total de‐cision coefficient of various characters to body weight was 0 .8808 .The findings showed that the selected character was the main body quality properties ;during the selection breeding of this phase , the body depth ,total length should be considered for the indirect selective breeding of the body quality ,to ensure the effect of selective breeding .
		2015 Vol. (8): 515-518 [Abstract] ( 69 ) HTML (0 KB) PDF (611 KB) ( 234 )

	519	Artificial Breeding and Related Factors in Schlegel ’s Rockfish Sebastes schlegeli in Tianjin
		GU Zhonghua,FU Zhiru,QIAN Hong,MI Huijing,JIANG Shu-guang,YU Yanguang,LU Yunzhao
		The artificial breeding of Schlegel’s rockfish Sebastes schlegeli was on the first time conducted in Tianjin ,and impacts of different environmental factors on the artificial breeding were studied .The fry were reared in 9 indoor tanks where artificial reefs were disposed ,where light was controlled or where were under normal light as a control to evaluate the effects of reef and light on the survival ,grow th and aggregation of the fish .During the experiment ,50 broodstocks were induced to spawn ,650 000 newly hatched larvae were obtained ,and 111 ,200 juveniles with total length of 3 cm were reared in 75 days with survival rate of 17 .1% .High aggregation of the fish was found in the indoor tanks where the artificial reefs were disposed .There were no significant differences in survival (18% -18 .57% ) and growth (at growth rate of 0 .037 -0.035 cm/d) in the tanks where artificial reefs were disposed compared with the normal group .Meanwhile ,better growth was observed under light intensity of about 34-65 lx than under light intensity of some 0 .2-3 .0 lx .
		2015 Vol. (8): 519-522 [Abstract] ( 60 ) HTML (0 KB) PDF (1572 KB) ( 314 )

	523	Reproductive Biology of Varicorhinus macrole pis in Shennongjia
		ZHANG Jinping,FENG Depin,YANG Jun,YUAN Zuju,HE Zhigang,ZOU Sixin
		The reproductive biology of Varicorhinus macrolepis was studied in Shennongjia .During the re‐productive season ,sex is distinguished by “pearl” and other secondary sex characteristics ,and the first sexual maturity appeared at age 3 for female and age 2 for male with sex ratio of female/male = 1 .08∶1 . The breeding period was from the end of April to the middle of June ,and the species was found to be a multiple spawner .The individual absolute fecundity was ranged from 1527 eggs to 15 875 eggs ,with the average 5568 ± 3172 (SD);the individual relative fecundity was between 11-41 eggs/g ,with the average 27 .14 ± 7 .46 eggs (SD)/g .
		2015 Vol. (8): 523-526 [Abstract] ( 63 ) HTML (0 KB) PDF (865 KB) ( 487 )

	527	Research Progress of Suspended Solids Treatment Process In Recirculating Aquaculture System
		LI Hongwei,ZHANG Qingjing,LIU Qing,QU Jiangqi,JIA Chengxia

		2015 Vol. (8): 527-532 [Abstract] ( 67 ) HTML (0 KB) PDF (636 KB) ( 416 )