海洋湖沼通报
海洋湖沼通報
해양호소통보
TRANSACTIONS OF OCEANOLOGY AND LIMNOLOGY
2014年
2期
118-124
,共7页
施超%张迪%梁振林%梅俊学
施超%張迪%樑振林%梅俊學
시초%장적%량진림%매준학
附着基%粗糙度%海藻苗种%沉积物%附着密度
附著基%粗糙度%海藻苗種%沉積物%附著密度
부착기%조조도%해조묘충%침적물%부착밀도
substrate%roughness%sediment%attachment%sporelings
本项研究试验了人工放散的蜈蚣藻(Grateloupiaasiatica)与多管藻(Polysiphoniaurceolata)孢子及其幼苗在不同粗糙度的附着基上的附着数量、三叉仙菜(Ceramium kondoi )、假根羽藻(Bryopsis corticulans)、酸藻(Desmarestiaviridis)和尾孢藻(Urospora penicilliformis)在海水中自然附着幼苗在不同粗糙度的附着基上的附着数量;还试验了不同粗糙度附着基上不同类型的沉积物对自然附着酸藻和尾孢藻的幼苗数量的影响。试验方法是以市售塑料扎带模拟表面粗糙度不同的人工藻礁,使人工刺激后释放的海藻孢子附着在其表面后,吊挂于海中使孢子萌发;空白附着基吊挂于海水中使海藻繁殖体(孢子、合子或受精卵)附着并萌发生长。以普通海泥、高温灭活海泥、底栖硅藻3种不同沉积物覆盖于人工附着基表面,统计各种沉积物在各种粗糙度的附着基上海藻幼苗数量。结果表明,对于无鞭毛的繁殖细胞(蜈蚣藻、多管藻和三叉仙菜的孢子,假根羽藻的合子、酸藻的受精卵)萌发成的幼苗数量受附着基粗糙度影响显著;在一定范围内,两者呈正相关。而萌发自游动孢子的尾孢藻,附着基的粗糙度影响不显著。3种沉积物中,高温灭活的海泥更有利于尾孢藻和酸藻的附着。
本項研究試驗瞭人工放散的蜈蚣藻(Grateloupiaasiatica)與多管藻(Polysiphoniaurceolata)孢子及其幼苗在不同粗糙度的附著基上的附著數量、三扠仙菜(Ceramium kondoi )、假根羽藻(Bryopsis corticulans)、痠藻(Desmarestiaviridis)和尾孢藻(Urospora penicilliformis)在海水中自然附著幼苗在不同粗糙度的附著基上的附著數量;還試驗瞭不同粗糙度附著基上不同類型的沉積物對自然附著痠藻和尾孢藻的幼苗數量的影響。試驗方法是以市售塑料扎帶模擬錶麵粗糙度不同的人工藻礁,使人工刺激後釋放的海藻孢子附著在其錶麵後,弔掛于海中使孢子萌髮;空白附著基弔掛于海水中使海藻繁殖體(孢子、閤子或受精卵)附著併萌髮生長。以普通海泥、高溫滅活海泥、底棲硅藻3種不同沉積物覆蓋于人工附著基錶麵,統計各種沉積物在各種粗糙度的附著基上海藻幼苗數量。結果錶明,對于無鞭毛的繁殖細胞(蜈蚣藻、多管藻和三扠仙菜的孢子,假根羽藻的閤子、痠藻的受精卵)萌髮成的幼苗數量受附著基粗糙度影響顯著;在一定範圍內,兩者呈正相關。而萌髮自遊動孢子的尾孢藻,附著基的粗糙度影響不顯著。3種沉積物中,高溫滅活的海泥更有利于尾孢藻和痠藻的附著。
본항연구시험료인공방산적오공조(Grateloupiaasiatica)여다관조(Polysiphoniaurceolata)포자급기유묘재불동조조도적부착기상적부착수량、삼차선채(Ceramium kondoi )、가근우조(Bryopsis corticulans)、산조(Desmarestiaviridis)화미포조(Urospora penicilliformis)재해수중자연부착유묘재불동조조도적부착기상적부착수량;환시험료불동조조도부착기상불동류형적침적물대자연부착산조화미포조적유묘수량적영향。시험방법시이시수소료찰대모의표면조조도불동적인공조초,사인공자격후석방적해조포자부착재기표면후,조괘우해중사포자맹발;공백부착기조괘우해수중사해조번식체(포자、합자혹수정란)부착병맹발생장。이보통해니、고온멸활해니、저서규조3충불동침적물복개우인공부착기표면,통계각충침적물재각충조조도적부착기상해조유묘수량。결과표명,대우무편모적번식세포(오공조、다관조화삼차선채적포자,가근우조적합자、산조적수정란)맹발성적유묘수량수부착기조조도영향현저;재일정범위내,량자정정상관。이맹발자유동포자적미포조,부착기적조조도영향불현저。3충침적물중,고온멸활적해니경유리우미포조화산조적부착。
It was tested on different roughness substrate and different types of sediment spores of red al-gae grateloupia filicina,polysiphonia urceolata,and sporeling densities of red algae grateloupia filicina, polysiphonia urceolata,Ceramium kondoi,green algae Bryopsis corticulans and Urospora penicillifor-mis,and brown alga Desmarestia viridis.The commercially available plastic strapping belts were used to simulate different surface roughnesses of artificial algal reef.Sea muds,sterile sea muds and benthic diatoms were used as different sediments to cover the surface of the artificial substrate.The result showed that propagules motility played a role in the effects of substrate roughness on spore attachment and seedlings densities.Substrate roughnesses significantly affected sporeling densities of the immotile propagules species Grateloupia asiatica,Polysiphonia urceolata and Ceramium kondoi,Bryopsis corticu-lans and Desmarestia viridis.On the other hand,for the zoospore-producer species Urospora penicilli-formis,the effect of substrate roughness was not significant.Compared with sea muds and benthic dia-toms,more Urospora penicilliformis and Desmarestia viridis sporelings appeared on sterile-sea-mud-covered substrate.