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931.
Shiang‐Lin Huang Haiping Wu Xianyan Wang Chongwei Peng Chun‐Chieh Wang 《水产资源保护:海洋与淡水生态系统》2020,30(9):1775-1782
- Protecting critical habitats of the Indo‐Pacific humpback dolphin, Sousa chinensis, is a hot topic of discussion for marine biodiversity conservation in China and many Southeast Asian countries. In practice, sound habitat protection action (HPA) planning often suffers from information gaps in macroscopic habitat configurations and changes in the habitat conditions of humpback dolphins.
- Recent publications in the journal Aquatic Conservation: Marine and Freshwater Ecosystems (AQC) have served to advance humpback dolphin conservation in Chinese waters by resolving such habitat configurations and indicating significant changes in distribution patterns and habitat characteristics under intense coastal anthropogenic activity.
- We highlight an integrative research framework to investigate habitat configuration and long‐term habitat changes when planning a holistic HPA programme for humpback dolphins. When constructing habitat configuration baselines, field surveys should be designed and conducted in a systematic manner to ensure survey efforts cover diverse environments equally, in either a spatially stratified or gridded pattern, to minimize potential spatial sampling biases. Long‐term habitat changes can be revealed by comparing satellite images from different decades. Changes in habitat preferences and habitat characteristics can be explored through questionnaire surveys on local ecological knowledge, associating historical occurrences with coastline features and projecting historical habitat configuration by species distribution modelling exercises.
- A lack of good communication and sharing of information between research and management sectors can still be an obstacle to the implementation of sound conservation practices, however, even though there is robust scientific evidence to fill knowledge gaps in distribution and habitat baselines. We have addressed the need to establish a mechanism to improve and streamline information sharing between research teams, management sectors, and stakeholder groups.
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935.
三角帆蚌蚌瘟病原的初步探讨 总被引:4,自引:0,他引:4
探讨了三个水产场三角帆蚌大批死亡的病因。取病料经匀浆、离心后取上清液,再经青霉素、链霉素处理或微孔滤膜过滤除菌,人工感染健康三角帆蚌均能引起发病死亡,并能连续传代。其症状和病理解剖变化与自然发病的蚌相似。病原病毒粒子有囊膜,核衣壳呈二十面体对称,大小80~120nm,暂称为蚌的类疱疹病毒。含毒病料置50%甘油磷酸盐缓冲液中,在0~4℃冰箱保存6个月,-20℃低温冰箱中保存一年半,仍有致病力。 相似文献
936.
Zhiqiang Huang Meng Yu Shuang Tong Kun Jia Rongchang Liu Heng Wang Shoujun Li Zhangyong Ning 《Journal of veterinary science (Suw?n-si, Korea)》2014,15(2):173-177
Activation of the innate immune system requires recognition of pathogen-associated molecular patterns, such as NOD-like receptors. The NOD-like receptor protein 3 (NLRP3) inflammasome is involved in induction of the pro-inflammatory cytokine, IL-1β, and subsequent inflammatory responses. NLRP3 inflammasome plays important roles in the inflammatory and innate immune responses associated with autoimmune/inflammatory syndrome. However, analysis of the tissue distribution and expression profiles in BALB/c mice is still incomplete. In this study, we investigated the tissue distribution and expression pattern of NLRP3 in BALB/c mice to further elucidate its function in innate immunity in this commonly used laboratory animal model. NLRP3 mRNA expression levels and tissue distribution of the protein were investigated by real-time quantitative PCR and immunohistochemical analyses, respectively. NLRP3 mRNA expression was higher in the kidney and inguinal lymph nodes than in other tissues. Cytoplasmic expression of NLRP3 was detected in the epithelial reticular cells of the spleen and thymus, lymphocytes in the inguinal lymph nodes, cardiac muscle cells, cerebral cortex neurons, alveolar macrophages, renal tubule cells and liver sinusoidal endothelial cells. The results of this study will assist investigators in interpreting site-specific functions and roles of NLRP3 in inflammatory responses. 相似文献
937.
急升温对十种甲壳动物存活率的影响 总被引:1,自引:1,他引:1
温度是影响海洋生物生长繁殖和分布的一个重要因子。在适温范围内,生物可以正常生长繁殖;超过适温范围时,生物的行为活动以及生长繁殖都将受抑制,甚至导致死亡。张伟权等(1980)、王克行等(1984)曾观察过温度对中国对虾幼体存活率和生长的影响,黄加祺和郑重(1986)、林森杰和李松(1988)、Bhattacharga(1984)、Bradley(1975)、Moreira(1982)分别报道过温度与某些桡足类生长、繁殖及存活率关系的实验结果。有关虾、蟹等经济动物和浮游甲壳类的行为生态与分布,不少学者已作过较细致的研究和论述。 相似文献
938.
J. W. Huang L. X. Tian Z. Y. Du H. J. Yang Y. J. Liu 《Fish physiology and biochemistry》2007,33(2):167-172
This study was conducted to evaluate the effects of dietary thiamin on the physiological status of the juvenile grouper, Epinephelus coioides. Graded levels of thiamin (0.08, 0.50, 2.12, 3.15, 4.63, 12.37 mg thiamin kg−1 diet) were fed to grouper juveniles (mean weight: 16.97 ± 0.14 g) for 10 weeks. Although fish fed the thiamin-deficient (TD)
diet showed no obvious symptoms of thiamin deficiency or increased mortality, those fed the lowest doses of thiamin (0.08
and 0.50 mg thiamin kg−1 diet) had significantly decreased transketolase activity in the liver. In addition, the level of liver thiobarbituric acid
reactive substances in fish fed the TD diet was 33–67% higher than that in fish with the thiamin-supplemented diet. There
were no significant differences in superoxide dismutase activity between the different groups of fish. 相似文献
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