南昌大学学报(理科版)
南昌大學學報(理科版)
남창대학학보(이과판)
JOURNAL OF NANCHANG UNIVERSITY(NATURAL SCIENCE)
2013年
6期
564-569
,共6页
刘息冕%俞薇%李天胜%欧阳珊%吴小平
劉息冕%俞薇%李天勝%歐暘珊%吳小平
류식면%유미%리천성%구양산%오소평
城市湖泊%大型底栖动物%群落结构%功能摄食类群
城市湖泊%大型底棲動物%群落結構%功能攝食類群
성시호박%대형저서동물%군락결구%공능섭식류군
urban lakes%macrozoobenthos%community structure%functional feeding groups
2011年2月~2012年3月,对南昌市3个城市湖泊大型底栖动物群落结构和季节动态进行研究。3个湖泊共记录大型底栖动物52种及亚种,隶属于7纲21科43属,优势种为霍甫水丝蚓Limnodrilus hoffmeisteri、梨形环棱螺Bellamyapurificata、花纹前突摇蚊Procladiuschoreus、粗腹摇蚊Pelopia sp.及羽摇蚊Chironomusplu-mosus;各湖泊的平均密度和平均生物量分别为:东湖108.45 ind/m2,75.89 g/m2;青山湖1520.89ind/m2,123.04 g/m2;前湖607.22 ind/m2,13.66 g/m2。结果表明,大型底栖动物的密度在湖泊间差异显著(F=4.21,P<0.05),同一湖泊密度季节差异不显著(F=0.99,P>0.05);湖泊间及同一湖泊不同季节生物量差异均不显著(F=2.15,P>0.05;F=0.58,P>0.05)。不同干扰程度下的城市湖泊,底栖动物功能摄食类群比重有各自的特点。东湖无论从密度或生物量看,均表现为以刮食者为主,占总密度的51.03%,总生物量99.50%;而青山湖和前湖从密度看,则以直接收集者为主,分别占总密度的76.49%和59.63%,从生物量看,以过滤收集者为主,分别占总生物量的79.75%和61.59%。
2011年2月~2012年3月,對南昌市3箇城市湖泊大型底棲動物群落結構和季節動態進行研究。3箇湖泊共記錄大型底棲動物52種及亞種,隸屬于7綱21科43屬,優勢種為霍甫水絲蚓Limnodrilus hoffmeisteri、梨形環稜螺Bellamyapurificata、花紋前突搖蚊Procladiuschoreus、粗腹搖蚊Pelopia sp.及羽搖蚊Chironomusplu-mosus;各湖泊的平均密度和平均生物量分彆為:東湖108.45 ind/m2,75.89 g/m2;青山湖1520.89ind/m2,123.04 g/m2;前湖607.22 ind/m2,13.66 g/m2。結果錶明,大型底棲動物的密度在湖泊間差異顯著(F=4.21,P<0.05),同一湖泊密度季節差異不顯著(F=0.99,P>0.05);湖泊間及同一湖泊不同季節生物量差異均不顯著(F=2.15,P>0.05;F=0.58,P>0.05)。不同榦擾程度下的城市湖泊,底棲動物功能攝食類群比重有各自的特點。東湖無論從密度或生物量看,均錶現為以颳食者為主,佔總密度的51.03%,總生物量99.50%;而青山湖和前湖從密度看,則以直接收集者為主,分彆佔總密度的76.49%和59.63%,從生物量看,以過濾收集者為主,分彆佔總生物量的79.75%和61.59%。
2011년2월~2012년3월,대남창시3개성시호박대형저서동물군락결구화계절동태진행연구。3개호박공기록대형저서동물52충급아충,대속우7강21과43속,우세충위곽보수사인Limnodrilus hoffmeisteri、리형배릉라Bellamyapurificata、화문전돌요문Procladiuschoreus、조복요문Pelopia sp.급우요문Chironomusplu-mosus;각호박적평균밀도화평균생물량분별위:동호108.45 ind/m2,75.89 g/m2;청산호1520.89ind/m2,123.04 g/m2;전호607.22 ind/m2,13.66 g/m2。결과표명,대형저서동물적밀도재호박간차이현저(F=4.21,P<0.05),동일호박밀도계절차이불현저(F=0.99,P>0.05);호박간급동일호박불동계절생물량차이균불현저(F=2.15,P>0.05;F=0.58,P>0.05)。불동간우정도하적성시호박,저서동물공능섭식류군비중유각자적특점。동호무론종밀도혹생물량간,균표현위이괄식자위주,점총밀도적51.03%,총생물량99.50%;이청산호화전호종밀도간,칙이직접수집자위주,분별점총밀도적76.49%화59.63%,종생물량간,이과려수집자위주,분별점총생물량적79.75%화61.59%。
Community structure and seasonal variation of macrozoobenthos were investigated between Feb-ruary 2011 and March 2012 in three urban lakes in Nanchang.Altogether 52 species and Subspecies belong-ing to 7 classes,21families,43genera were identified,The dominant species were Limnodrilus hoffmeisteri, Bellamya purificata,Procladius choreus,Pelopia sp.and Chironomus plumosus;the mean density and mean biomass of each lake are 108.45 ind/m2,75.89 g/m2(Lake Donghu),1520.89 ind/m2,123.04 g/m2(Lake Qingshanhu)and 607.22ind/#,13.66 g/m2(Lake Qianhu).The analysis showed that the density of mac-rozoobenthos is significant difference in each lake (F=4.21,P<0.05),but no significant difference among four seasons (F=0.99,P>0.05).Proportion of macrozoobenthos functional feeding groups has its own characteristics in urban lakes with different interference.In Lake Donghu,scraper percentages in both den-sity(51.03%)and biomass(99.50%)are the highest.However,in Lake Qingshanhu and Lake Qianhu,col-lector-gatherers percentages in density are the highest,respectively,76.49% and 59.63%,and collector-fil-terers percentage are the highest in biomass in both lakes,respectively 79.75% and 61.59%.