期刊文献+
共找到7篇文章
< 1 >
每页显示 20 50 100
船舶生物污垢未来立法思考及我国应对措施 被引量:2
1
作者 曾超 《中国海事》 2019年第11期29-32,共4页
船舶生物污垢是导致沿岸国水生物种入侵的重要因素,严重破坏生态系统平衡,影响人类健康,降低船舶能效,增加GHG排放。文中介绍了船舶生物污垢概况及产生的影响,阐述了IMO及其他国家关于船舶生物污垢立法状况,分析了IMO未来制定船舶生物... 船舶生物污垢是导致沿岸国水生物种入侵的重要因素,严重破坏生态系统平衡,影响人类健康,降低船舶能效,增加GHG排放。文中介绍了船舶生物污垢概况及产生的影响,阐述了IMO及其他国家关于船舶生物污垢立法状况,分析了IMO未来制定船舶生物污垢强制规定可能采取的立法措施,并对我国如何开展船舶生物污垢研究提出了建议。 展开更多
关键词 船舶生物污垢 入侵水生物 立法思考
下载PDF
中国渔业船舶应对《压载水公约》的策略分析 被引量:1
2
作者 李胜勇 曹建军 +2 位作者 李颖 杨浩 郑建丽 《中国渔业质量与标准》 2018年第5期42-48,共7页
《2004年国际船舶压载水及沉积物控制和管理公约》(简称"《压载水公约》"或"《公约》")于2017年9月8日生效。公约生效后,港口国将对靠港船舶实行监督、管控,这是一次压载水系统的技术革命,将对中国远洋渔业造成重... 《2004年国际船舶压载水及沉积物控制和管理公约》(简称"《压载水公约》"或"《公约》")于2017年9月8日生效。公约生效后,港口国将对靠港船舶实行监督、管控,这是一次压载水系统的技术革命,将对中国远洋渔业造成重大影响。文章通过研究《压载水公约》的内容,并对随机抽取的19艘远洋渔业船舶进行归纳,统计出这些船舶的压载的方式、分布特点和技术参数,分析得出中国远洋渔业船舶压载水系统设置的技术现状以及《公约》实施后远洋渔业船舶面临的技术难题和挑战,同时给出了相应的解决方案。最后,提出了远洋渔业船舶应对《公约》的建议,以期为远洋渔业船舶监管部门制定相关政策、法规提供有力的支撑。 展开更多
关键词 渔业资源 渔业船舶 压载水公约 水生物入侵 港口国监督 法规修订
下载PDF
Invasion and spreading of Cabomba caroliniana revealed by RAPD markers
3
作者 金孝锋 丁炳扬 +1 位作者 高树琴 姜维梅 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2005年第4期406-413,共8页
Applying randomly amplified polymorphic DNA (RAPD), the genetic variation of Cabomba caro- liniana Gray (cabomba or fanwort), a new alien plant in China, was analyzed in this paper. Total 143 bands, in- cluding 47 pol... Applying randomly amplified polymorphic DNA (RAPD), the genetic variation of Cabomba caro- liniana Gray (cabomba or fanwort), a new alien plant in China, was analyzed in this paper. Total 143 bands, in- cluding 47 polymorphic bands, were amplified from 23 primers in 20 samples. The sampling distance was large, but its genetic diversity was low. The main results were that: (1) Cabomba, which grew and dispersed mainly in fragment, was an abundant and dominant species in freshwater, and its main dispersal mechanism was vegetative reproduction. (2) Cabomba was originally introduced into China as an aquarium submerged plant. Somehow, those discarded cabomba became invasive species in the areas of Hangzhou, Shanghai, and Meicheng, and other places. (3) Although the level of genetic diversity in cabomba was low, their rapid dispersion and propagation could seriously harm to local aquatic community. Therefore, specific measure should be used to control cabomba from uncontrolled spreading and damage to local vegetation communities. 展开更多
关键词 Cabomba caroliniana (cabomba) alien species biological invasion genetic diversity RAPD-PCR
下载PDF
Temperature increase impacts personality traits in aquatic non-native species: Implications for biological invasion under climate change 被引量:5
4
作者 Dapeng ZHAO Peishan FENG 《Current Zoology》 SCIE CAS CSCD 2015年第6期966-971,共6页
Climate change, such as elevated temperatures, may facilitate biological invasion. Aquatic animal systems are more vulnerable to biological invasion when the temperature rises. Animal personality also plays an importa... Climate change, such as elevated temperatures, may facilitate biological invasion. Aquatic animal systems are more vulnerable to biological invasion when the temperature rises. Animal personality also plays an important role in the possibility of successful establishment of invasive species. However, it is still unclear how personality traits of invasive species will respond to global warming. This study focuses on juveniles of red swamp crawfish Procambarus clarkii, an invasive poikilothermic species with wide distribution throughout the world, and explores how slight temperature increases influence three personality traits (ac- tivity, boldness and aggressiveness) ofP. clarkii. For each personality, individual variation is to be presented in condition of the same temperature. Individual personality values can significantly increase with the subtle rising of water temperature. Significant correlations among activity, boldness and aggressiveness are found at any temperature stage, and such relationships are main- tained at a similar level in the face of different temperatures. It is most likely that significant expressions of personality traits may be an ecological compensation strategy to offset increased metabolic costs when faced with small temperature increases. Aggres- sion syndromes are formed due to stable linkages between personality traits, in order to acquire allopatric resources efficiently and establish a new population in this species 展开更多
关键词 Animal personality Biological invasion Climate change CRAWFISH Invasive species
原文传递
Responses of morphological and physiological traits to herbivory by snails of three invasive and native submerged plants 被引量:1
5
作者 Xiaolong Huang Jinlei Yu +4 位作者 Baohua Guan Hongmin Xie Shuailing Liu Hu He Kuanyi Li 《Journal of Plant Ecology》 SCIE CSCD 2022年第3期571-580,共10页
The submerged plant species Carolina fanwort(Cabomba caroliniana)has become a dominant invasive aquatic plant in the Lake Taihu Basin(LTB)in China.Introduced species may escape their original specialist enemies and en... The submerged plant species Carolina fanwort(Cabomba caroliniana)has become a dominant invasive aquatic plant in the Lake Taihu Basin(LTB)in China.Introduced species may escape their original specialist enemies and encounter fewer enemies in their new environment.They were assumed to have suffered less herbivory than native species as they are relatively unpalatable(the enemy release hypothesis[ERH]).The objective of this study was to compare the responses of C.caroliniana with those of co-occurring native species to herbivory from native herbivores.We conducted a mesocosm experiment to record the responses of C.caroliniana and two commonly co-occurring native submerged plant counterparts,water thyme(Hydrilla verticillata)and Eurasian watermilfoil(Myriophyllum spicatum),to herbivory by two native generalist gastropod snails,Radix swinhoei and Sinotaia quadrata.Plant morphological traits(total biomass,shoot/root[S/R]biomass ratio and relative growth rate[RGR])and physiological traits(leaf total nonstructural carbohydrate[TNC],lignin,and cellulose)were recorded.The snail S.quadrata rarely influenced the plant traits of the three submerged plants.With the increasing numbers of R.swinhoei treatments,most of the plant traits of H.verticillata and M.spicatum changed,while those of C.caroliniana showed a relatively stable fluctuation.This result indicates that C.caroliniana is more resistant to herbivory by the snail R.swinhoei,which is consistent with the ERH hypothesis.This finding indicates that herbivorous snail species contributes to the invasion of C.caroliniana,which potentially alters the species composition of submerged plants in the plant community. 展开更多
关键词 aquatic plant biological invasion Cabomba caroliniana enemy release hypothesis Lake Taihu Basin plant–herbivore interactions
原文传递
Animal personality and the ecological impacts of freshwater non-native species 被引量:9
6
作者 Tristan JUETTE 《Current Zoology》 SCIE CAS CSCD 2014年第3期417-427,共11页
While the ecological impacts of invasive species have been demonstrated for many taxonomic groups, the potential effects of behavioural variation among nonnative individuals (i.e. personality) on these impacts have ... While the ecological impacts of invasive species have been demonstrated for many taxonomic groups, the potential effects of behavioural variation among nonnative individuals (i.e. personality) on these impacts have been largely overlooked. This is despite the fact that recent studies have demonstrated that, by nature, the three first stages of biological invasions (i.e. transport, establishment and spread) can lead to personalitybiased populations. Freshwater ecosystems provide a unique oppor tunity to investigate this issue, notably because the ecological impacts of nonnative species have been extensively documented and because animal personality has been widely studied using freshwater model species. Here, we aim at developing some per spectives on the potential effects of animal personality on the ecological impacts of freshwater nonnative species across levels of biological organizations. At the individual level, personality types have been demonstrated to affect the physiolo gy, metabolism, life history traits and fitness of individuals. We used these effects to discuss how they could subsequently impact invaded popula tions and, in turn, recipient communities. We also discussed how these might translate into changes in the structure of food webs and the functioning of invaded ecosystems. Finally we discussed how these perspectives could interact with the management of invasive species . 展开更多
关键词 Biological invasions Behavioural syndromes Aquatic ecosystems Temperaments Behavioural types Cascadingeffects
原文传递
Invasion and predation in aquatic ecosystems
7
作者 Judith S. WEIS 《Current Zoology》 SCIE CAS CSCD 北大核心 2011年第5期613-624,共12页
This article reviews biological invasions in which predation (or its absence) plays a major role in the success of the invader. Examples are described in which the invader out-competes native species for the same fo... This article reviews biological invasions in which predation (or its absence) plays a major role in the success of the invader. Examples are described in which the invader out-competes native species for the same food, and cases in which the in-vader consumes valued native species. In many instances, better predator avoidance by the invasive species or the absence of predators in the new habitat contributes to the success of the invaders; in other cases native or introduced predators appear to be able to keep the invasive species in check. A relatively new management approach in the US is the idea of adding another trophic level - to have humans act as the predators and consume the invasive species. This approach is being utilized in Florida and throughout the Caribbean against the lionfish, but could be extended to other fishes, as well as to various invasive crustaceans and mollusks. This idea is controversial, and current regulations prohibiting the possession of individuals of the invasive species (e.g., mitten crabs or snakefish) would preclude the development of a fishery for them [Current Zoology 57 (5): 613~524, 2011]. 展开更多
关键词 PREDATOR PREY Trophic interactions FEEDING Food web
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部