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Publications (12)0 Total impact

  • Acta Hydrobiologica Sinica 01/2012; 36(1):137-142.
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    ABSTRACT: This paper studied the impacts of different dose ultraviolet irradiation (254 nm, UVC) on the sperm motility and longevity of Acipenser baerii. Ultraviolet irradiation had significant impacts on the sperm motility, its fast motion time, and longevity. With the increasing dose of ultraviolet irradiation, the sperm motility decreased rapidly first, increased rapidly then, and decreased rapidly again. The sperm fast motion time had the similar variation trend as the sperm motility, but the sperm longevity kept decreasing with increasing dose of ultraviolet irradiation. When the ultraviolet irradiation dose increased to 288 mJ x cm(-2), the sperm fast motion disappeared; when the ultraviolet irradiation dose increased up to 324 mJ x cm(-2), the sperm had no motility and died. According to the "Hertwig effect", the optimum ultraviolet irradiation dose for inactivating A. baerii sperm was 216 mJ x cm(-2).
    Ying yong sheng tai xue bao = The journal of applied ecology / Zhongguo sheng tai xue xue hui, Zhongguo ke xue yuan Shenyang ying yong sheng tai yan jiu suo zhu ban 08/2011; 22(8):2179-83.
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    ABSTRACT: A semi-static test of Pb exposure (0, 0.2, 0.8, and 1.6 mg L(-1)) was carried out to examine the Pb accumulation and elimination in different tissues of juvenile Chinese sturgeon (Acipenser sinensis). With increasing Pb concentration in water, the Pb concentration in juvenile A. sinensis tissues increased, showing a clear dose-response relationship. The Pb accumulation had a trend of being higher in bone (dorsalbone plate and cartilaginous bone) and muscle, followed by in stomach, intestine, and skin, and relatively low in liver, gill, and notochord. A 6-week duration test after Pb exposure showed that in low dose group (0.2 mg x L(-1)), the Pb concentration in all tissues had no significant differences to the control group, but in medium dose group (0.8 mg x L(-1)), the Pb concentration in most tissues except gill stomach, cartilaginous bone, and muscle was significantly higher than the control. In high dose group (1.6 mg x L(-1)), the Pb concentration in the tissues other than liver, intestine and skin was significantly higher than the control. Through the comparison of accumulation and elimination, it was found that after low- and medium dose exposure, the Pb concentration in skin, gill, and liver was higher than its accumulation, presuming that Pb was absorbed from gill, skin, and alimentary canal, and eliminated from gill and skin.
    Ying yong sheng tai xue bao = The journal of applied ecology / Zhongguo sheng tai xue xue hui, Zhongguo ke xue yuan Shenyang ying yong sheng tai yan jiu suo zhu ban 02/2010; 21(2):476-82.
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    ABSTRACT: The pomfret, Pampus punctatissimus, is an important fisheries resource in China, but little is known about its amino acid and fatty acid compositions. Pomfret muscle contained 18.6% crude protein and 4.95% crude fat. Pomfret protein has a well-balanced amino acid composition, with high amounts of glutamic acid (114mg/g), lysine (82.8mg/g), leucine (76.7mg/g), and aspartic acid (76.0mg/g). Twenty two fatty acids were found in pomfret oil and saturated fatty acids were the most abundant (48.3%). Palmitic acid (16:0) was the dominant fatty acid, followed by oleic acid (18:1), DHA (22:6n-3), myristic acid (14:0) and stearic acid (18:0), with percentages of 30.5, 26.3, 12.2, 7.37 and 6.86, respectively. The ratio of n-3/n-6 polyunsaturated fatty acids (PUFAs) was 8.04; thus, pomfret muscle is rich in n-3 PUFA.
    Food Chemistry - FOOD CHEM. 01/2010; 118(2):224-227.
  • Ping ZHUANG, Chao SONG, Long-Zhen ZHANG, Jian LIU, Gang LUO
    Acta Hydrobiologica Sinica 01/2010; 33(5):998-1004.
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    ABSTRACT: This paper studied the effects of different storage medium (coelomic fluid, Hepes solution, and modified Ringer's solution), temperature (4 degrees C and 16 degrees C), and duration (4 h, 8 h, 16 h, and 24 h) on the short-term storage of Siberian sturgeon (Acipenser baerii) eggs. The results showed that storage medium, temperature, and duration all had significant effects on the fertilization rate, hatching success, and malformation of newly hatched larvae (P < 0.05). With the increase of storage duration, the fertilization and hatching rates decreased, while the malformation rate of hatched larvae increased. The A. baerii eggs stored at 16 degrees C had higher fertilization, hatching, and malformation rates but shorter holding time than those stored at 4 degrees C. The optimal conditions for the short-term storage of A. baerii eggs were Hepes solution prepared according to the biochemical composition of A. baerii coelomic fluid, 16 degrees C, and 4 h, under which, 86.36% fertilization rate, 94.74% hatching rate, and zero malformation would be obtained.
    Ying yong sheng tai xue bao = The journal of applied ecology / Zhongguo sheng tai xue xue hui, Zhongguo ke xue yuan Shenyang ying yong sheng tai yan jiu suo zhu ban 01/2010; 21(1):227-31.
  • Acta Hydrobiologica Sinica 01/2010; 34(3):639-641.
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    ABSTRACT: Siberian sturgeon (Acipenser baerii) larvae were raised with Limnodrilus sp., Artemia nauplii, Moina sp., and artificial commercial diet for 30 days to investigate the effects of different initial feeding diets on the growth, survival, and body biochemical composition of the larvae. The results showed that A. nauplii was the best initial feeding diet, with the survival rate of A. baerii larvae being significant higher (96.67%) than the others. Feeding with Limnodrilus sp. gave the highest growth rate of A. baerii larvae, while feeding with artificial commercial diet gave the lowest efficiency on the growth rate and survival rate of the larvae. The larvae raised with different diets had significantly different body biochemical composition. After fed with artificial commercial diet, the larvae had the highest moisture content but the lowest crude protein and crude ash contents. Taking A. nauplii as the initial feeding diet and then feeding with Limnodrilus sp. could gave the ideal growth and survival rates of A. baerii larvae.
    Ying yong sheng tai xue bao = The journal of applied ecology / Zhongguo sheng tai xue xue hui, Zhongguo ke xue yuan Shenyang ying yong sheng tai yan jiu suo zhu ban 03/2009; 20(2):358-62.
  • Acta Hydrobiologica Sinica 01/2009; 33(2):170-176.
  • Gang Luo, Ping Zhuang, Long-zhen Zhang, Tao Zhang, Jian Liu
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    ABSTRACT: This paper dealt with the diet composition and monthly variation in feeding habits of juvenile Acipenser sinensis accidentally caught along with other fish in Yangtze River estuary from May to September, 2004. The results showed that the juvenile A. sinensis mainly fed on demersal fish, polychaeta and amphipoda, as well as some small-sized benthic invertebrates including shrimp, crab and bivalve. The feeding rate and intensity were higher, and the feeding intensity varied monthly. The main food items also varied monthly, and changed from small-sized to relative large-sized species. The main diet composition included polychaeta and crab in May, fish and amphipoda in June, fish and polychaeta in July, empty stomach in August, and fish and shrimp in September. In the diet, the proportion of Platycephalidae, an important prey of juvenile A. sinensis in the past, was very low, only accounting for 1.81% of the total food by mass, while that of Gobiidae and Isopoda, which had not been recorded in the diet, was higher, accounting for 50.54% and 10:07% of the total, respectively.
    Ying yong sheng tai xue bao = The journal of applied ecology / Zhongguo sheng tai xue xue hui, Zhongguo ke xue yuan Shenyang ying yong sheng tai yan jiu suo zhu ban 02/2008; 19(1):144-50.
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    ABSTRACT: The growth and development of larval Amur sturgeon Acipenser schrenckii could be divided into two stages, i.e., pre-larval or free embryonic stage [from hatching (0 day of age and 10.17 +/- 0.63 mm of body length) to initial feeding (9 days of age and 18.93 +/- 0.74 mm of body length)], and post-larval stage [from initial feeding to juvenile stage (38 days of age and 41.89 +/- 5.09 mm of body length)]. During pre-larval stage, some organs related to feeling, feeding, breathing and swimming developed and differentiated rapidly; and during post-larval stage, dorsal, lateral and ventral scuta appeared, and the fish morphologically developed into juvenile. The growth characteristics of larval A. schrenckii presented allometric patterns, i.e., the growth inflexion points of eye diameter, mouth width, tail fin length, and pectoral fin length appeared in the ages of 2 days, 8-9 days, 10 days, and 11 days, respectively. Before the growth inflexion points, the organs grew fast; while after the growth inflexion points, the growth slowed down and approximately appeared isometric. The organs of larval A. schrenckii had the characteristics of congruous and rapid development. With the development of the organs related to feeling, feeding, breathing and swimming, larval A. schrenckii obtained the ability of escaping from predators and feeding, and consequently, its survival chance increased.
    Ying yong sheng tai xue bao = The journal of applied ecology / Zhongguo sheng tai xue xue hui, Zhongguo ke xue yuan Shenyang ying yong sheng tai yan jiu suo zhu ban 01/2008; 18(12):2875-82.
  • Ping Zhuang, Chao SONG, Long-Zhen Zhang
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    ABSTRACT: We conducted a comparative study of the nturition and quality of Exopalaemon annandalei and Macrobrachium nipponenisis collected from the Yangtze Estuary. Results showed that moisture and crude ash content in E. annandalei were significantly lower than that in M.nipponensis (P<0.05); however, the content of crude protein and crude fat in E.annandalei was significantly higher than that in M.nipponensis (P<0.05).. Seventeen kinds of amino acids were found in both species i.e., 9 kinds of essential amino acids (Thr, Val, Met, Phe, Ile, Leu, Lys, His and Arg), 1 kind of half-essential amino acid (Tyr ), 6 kinds of nonessential amino acids (Asp, Glu, Ser, Gly, Ala and Pro) and Tau. The essential amino acids index (EAAI) was similar between 2 species, i.e., 52.77 for E. annandalei and 52.67 for M.nipponensis respectively. The component of the essential amino acids (EAA) meets the Food and Agriculture Organization of the United Nations (FAO)/ Word Health Organization (WHO) Standard. Based on the nutritional evaluation of amino acids score (AAS) and chemical score (CS), the limited amino acids of 2 species were Met and Cys. There were 10 kinds of saturated fatty acids (SFA), 4 kinds of mono-unsaturated fatty acids (MUFA) and 8 kinds of poly unsaturated fatty acids (PUFA) found in E.annandalei, while there were 8 kinds of SFA, 4 kinds of MUFA and 7 kinds of PUFA found in M.nipponensis. Among fatty acids, the proportion of EPA+DHA was 28.32%±0.49% and 14.89%±0.63% for E.annandalei and M.nipponensis, w3 poly unsaturated fatty acids (w3PUFA) was 30.05%±0.58% and 17.41%±0.67% for E.annandalei and M.nipponensis, w6 poly unsaturated fatty acids (w6PUFA) was 4.76%±0.06% and 13.14%±0.60% for E.annandalei and M.nipponensis respectively. Thus, the proportion of EPA+DHA and w3PUFA in E.annandalei was significantly higher than that in M.nipponensis; however the proportion of w6PUFA in E.annandalei was significantly lower than that in M.nipponensis. The contents of major elements such as K, Na, Ca, Mg and P in E.annandalei were much richer than those in M.nipponensis; however, the trace elements such as Fe, Cu, Zn, Se in M.nipponensis were much richer than those of E.annandalei. The present study indicates that nutritive components of both species were broadly similar. Both species contain an abundance of amino acids, fatty acids, major elements and trace elements. Comparing the content of EPA+DHA and w3PUFA, it may be inferred that the nutritive component of fatty acid in E.annandalei are higher than in M.nipponensis. Correspondingly, comparing the content of Fe, Cu, Zn and Se, it may be inferred that the nutritive component of trace elements in M.nipponensis are higher than in E.annandalei [Acta Zoologica Sinica 54(5): 822–829, 2008].
    Acta Zoologica Sinica. 01/2008;