柯才焕
贝类学与贝类养殖技术;海洋贝、虾类遗传育种技术;海洋底栖无脊椎动物幼体生物学;海洋生态毒理学。
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- 姓名:柯才焕
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学术头衔:
博士生导师
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学科领域:
物理海洋学
- 研究兴趣:贝类学与贝类养殖技术;海洋贝、虾类遗传育种技术;海洋底栖无脊椎动物幼体生物学;海洋生态毒理学。
柯才焕,1962年9月生,现任厦门大学海洋系教授、博导,兼任近海海洋环境科学国家重点实验室教授。1982年7月上海水产大学海水养殖专业毕业,1982-1985在闽东水产研究所从事海水养殖生产技术工作,1988年获厦门大学海洋系硕士学位,1988-1990在厦门水产学院养殖系任教,1994年获厦门大学海洋系理学博士学位。1999年任香港城市大学高级副研究员,2000年作为访问学者在香港科技大学生物系进修。
现担任中国贝类学会理事、福建省动物学会常务理事、福建省海洋学会理事、厦门市海洋与渔业学会养殖与捕捞专业委员会主任、厦门市水产野生动物保护专家顾问组成员。《中国贝类学论文集》编委。
主要研究领域:贝类学与贝类养殖技术;海洋贝、虾类遗传育种技术;海洋底栖无脊椎动物幼体生物学;海洋生态毒理学。
曾获部委级科技进步三等奖2项和市级科技进步二等奖1项以及张玺贝类学研究奖。主持完成的科技成果"东风螺生产性人工育苗技术研究"通过省级鉴定,技术水平为国内领先。主持国家863课题"杂色鲍的遗传改良技术"。获国家发明专利1项。发表学术论文76篇,其中SCI和EI收录14篇。
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柯才焕, Huaiping Zheng a, b, Caihuan Ke a, *, Shiqiang Zhou a, Fuxue Li a
Aquaculture 243(2005)357-366,-0001,():
-1年11月30日
The impact of starvation on larvae of Ivory shell Babylonia formosae habei was studied in a laboratory experiment. Newly hatched veligers showed considerable tolerance to starvation due to their endogenous yolk material, and time to the point-of-noreturn (PNR; the threshold point during starvation after which larvae can longer metamorphose even if food is provided) was calculated to be 104.5h. However, starvation still affected larval growth, survival, and metamorphosis. Mean shell length of larvae increased 49.77 Am day 1 for nonstarved, but only 11.13 Am day1 for larvae starved for 108h. After larvae began feeding, their growth rates rapidly recovered to the level of the nonstarved following short periods of starvation (less than 48h), but were inhibited and unable to ever reach the level of the nonstarved when being starved beyond 48h. Percent metamorphosis was 53.75% for the nonstarved, but all larvae died before 10 days for those starved for 108h. Starvation not only affected larval time to reach metamorphosis, but also caused the delay in the time to metamorphosis. For the nonstarved, larvae took only 11.5 days to reach spontaneous metamorphosis, but they took 20 days to reach spontaneous metamorphosis when starved for 96h, and this duration of delayed metamorphosis reached 8.5 days. Furthermore, the importance of yolk material for maintaining larval survival of B. formosae habei during starvation periods is also discussed.
Starvation, Babylonia formosae habei larvae, PNR, Survival, Growth, Metamorphosis.,
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柯才焕, CHEN Yah , KE Caihuan *, ZHOU Shiqiang , LI Fuxue
Acta Oceanologica Sinica, 23(2004)521~531,-0001,():
-1年11月30日
The development of embryos and larvae of Babylonia formosae habei living along the southeast coast of China is observed under laboratory conditions. The egg masses are laid by females on hard substrate at night and each capsule contains 100-500 eggs. Each egg is 250-280mm in diameter. The first two cleavages of the embryo are meridional and equal, and a polar lobe is produced, larval kidney, which only consists of a single ceil, appears during the gastrula stage on each side of the embryo. The right tentacle develops prior to the left one. At 25-27℃, an intracapsulate veliger stage is reached about 4.5d after deposition. The larvae hatch on the fifth day as swimming veligers with a shell length of 360~500mm. The newly hatched larva can ingest suspended algal cells from the water column and remains in the pelagic stage for 8~10d. The newly settled juveniles are 900-1200mm in shell length.
Babylonia formosae habei, embryo, larva, juvenile, development
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【期刊论文】Observations on the morphology of embryonic and larval development in Styela canopus Savigny*
柯才焕, Huang Ying , Ke Caihuan , Feng Danqing , Zhou Shiqiang , Li Fuxue
Acta Oceanologica Sinica, 22, 4, 621~628, 2003.,-0001,():
-1年11月30日
The morphological characters on different developmental phases of embryo and larva and the schedule of the whole early developmental process in Styela canopus were observed and described. The types of reproduction and early development as well as the morphology of egg and larva in different ascidian species were compared. Styela canopus is oviparous. Its egg, 230.4~336.0μm in diameter, is equipped with extraembryonic cell layers measured 43.2~63.0μm thick. The early development of Styela canopus is typical urodele development, including fertilization, cleavage, gastrulation, tadpole in membrane, tadpole, initiating metamorphosis and juvenile. The tadpole of Styela canopus, with a length of 0.6~0.9mm, consists of trunk and tail. There are obvious notochord, ocellus and adhesive papillae in the tadpole. Under the water temperature of (25±0.5)℃ and the salinity of 27.0, the larva was hatched after 9.5~11.0h since the fertilization
Styela canopus, embryo, larvae, tadpole larvae, ascidian
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【期刊论文】The determination of larval metamorphic competence of Styela canopus Savigny*
柯才焕, Ying Huang , Danqing Feng , Caihuan Ke†, Shiqiang Zhou
Acta Oceanologica Sinica, 22, 3, 459-466, 2003.,-0001,():
-1年11月30日
The larvae of Styela canopus show the highest rates of settlement and metamorphosis when treated with 40mM KCl-elevated seawater at 25℃ in temperature and 27.0 in salinity. Induced by 40 mM KCl-elevated seawater, it took Styela canopus larvae approximately 3h after hatching to develop competence to settle and metamcamorphose. The present experiment shows that Styela canopus larvae is an ideal model organism for examining the efficiency of antifouling substance.
Styela canopus, larvae, settlement, metamorphosis, ascidian
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柯才焕, Caihuan Ke, Wen-Xiong Wang
Marine Biology (2002) 140: 327-335,-0001,():
-1年11月30日
We examined trace metal ingestion and as-similation (Cd, Se, Zn) by the green mussel Perna viridis in a mixture of diatoms and sediment at concentrations below and above the pseudofeces production levels. Dual gamma radiotracers (109Cd, 65Zn) were used to investigate particle selection on marine diatoms and sediments. The diatom (Thalassiosira weissflogii) was radiolabeled with 109Cd, and the natural sediment was radiolabeled with 65Zn. By comparing the ratios of 09Cd: 65Zn in the particle mixture, mussel tissues and pseudofeces within a short-term exposure period (35min), the results demonstrated that the green mussels were able to selectively ingest the diatom particles at a high particle load. Efficiency of selection for nutritious particles (e.g. diatoms) increased with increasing ratio of sediments in the particle mixture. Pseudofeces contained a higher ratio of sediments relative to that in the feeding suspension. No major particle selection was observed at concentrations below the level for pseudofeces production. The assimilation of Cd, Se and Zn by the green mussels was quantified using a pulse-chase feeding technique. The assimilation of Se and Zn by the green mussels from ingested diatoms was reduced with the presence of sediment within the mussel gut, presumably due to the resorption of metals onto the sediment, leading to a quicker passage of metals through the digestive tract and a lower proportion of metals subjected to intensive digestion. In contrast, the presence of diatoms did not significantly affect metal assimilation from ingested sediment. A significant correlation between metal assimilation efficiency and metal gut passage time was also observed. Metal assimilation by the green mussels appeared to be little dependent on the particle concentration in seawater. Our study suggests that particle selection may potentially alter metal influx from ingested food sources, particularly at high particle concentrations. Selective feeding of nutritious particles, coupled with a high assimilation efficiency from these ingested particles, may increase metal influx into mussels from the dietary phase.
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【期刊论文】Dominance of dietary intake of cadmium and zinc by two marine predatory gastropods
柯才焕, Wen-Xiong Wang *, Caihuan Ke
Aquatic Toxicology 56(2002)153-165,-0001,():
-1年11月30日
Marine gastropods are known to accumulate high metal concentrations in their tissues, especially in the digestive glands. Although bindings with metallothioneins and granules are proposed to be responsible for the accumulation of high metal concentration, routes and rates of metal accumulation in these animals are not known. In this study, we determined the biokinetics of Cd and Zn in two predatory marine gastropods (Babylonia formasae habei and Nassarius teretiusculus), including metal assimilation efficiency (AE) from ingested clam tissues, metal uptake rate from the dissolved phase, and metal efflux rate constant. The metal AEs were 87-99% for Cd and 50-79% for Zn in B. formasae habei, and were 84-94% for Cd and 79-81% for Zn in N. teretiusculus, respectively, feeding on clams radiolabeled from both the aqueous and dietary phases. The uptake rate constants from the dissolved phase were 0.0562 1g-1 per day for Cd and 0.122 1g-1 per day for Zn in N. teretiusculus, and 0.0292 1g-1 per day for Cd and 0.0573 1g-1 per day for Zn in B. formasae habei, respectively. The efflux rate constants were 0.0011 per day for Cd and 0.0138 per day for Zn in N. teretiusculus, and 0.0055 per day for Cd and 0.0057 per day for Zn in B. formasae habei, respectively. Using a simple kinetic model, we showed that the trophic transfer factor, defined as the ratio of metal concentration in predatory gastropods and metal concentration in prey organisms (bivalves), was greater than one under most circumstances, suggesting that Cd and Zn may be biomagnified during their trophic transfer from bivalves to gastropods. Furthermore, our model predicted that the dietary exposure dominated (90%) the overall Cd and Zn accumulation in the two predatory gastropods. Our study also highlights the interspecies difference in metal biokinetics in marine gastropods.
Biokinetics, Gastropod, Cadmium, Zinc, Trophic transfer
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