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In seven cruises on benthic organisms in the nearshore waters(>50 m) to the west of the Taiwan Strait(23°20''-25°54''N,117°11''-119°58''E) in 1961-1964,altogether 189 stations of quantitative grabbing and 33 stations of qualitative trawling were made.
Altogether 392 species of benthic organisms have been identified.The composition was dominated by nearshore shallow water species,with tropical and subtropical species absolutely dominant.The total average of biomass was 38.0 g/m2 and average density,116.0 ind./m2.The communities of benthic organisms in the area can be classified into five communities namely,(1) Amphiura sp.-Acaudina molpadioides Community;(2) Protankyra asymmetrica-Arnphioplus pracstans-Murex trapa Community;(3) Modiolus meicalfei-Phyllophorus liuwutiensis-Armandia letocirris-Nephtys sinensis Community;(4) Branchiostoma belcheri-Solenr oseomaculatus-Marphysa sinensis- Onuphis eremita Community;(5) Iconomtra japonica-Barbatia decussata Community. 相似文献
Altogether 392 species of benthic organisms have been identified.The composition was dominated by nearshore shallow water species,with tropical and subtropical species absolutely dominant.The total average of biomass was 38.0 g/m2 and average density,116.0 ind./m2.The communities of benthic organisms in the area can be classified into five communities namely,(1) Amphiura sp.-Acaudina molpadioides Community;(2) Protankyra asymmetrica-Arnphioplus pracstans-Murex trapa Community;(3) Modiolus meicalfei-Phyllophorus liuwutiensis-Armandia letocirris-Nephtys sinensis Community;(4) Branchiostoma belcheri-Solenr oseomaculatus-Marphysa sinensis- Onuphis eremita Community;(5) Iconomtra japonica-Barbatia decussata Community. 相似文献
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本文研究了栖息于厦门杏林海区的双齿围沙蚕的繁殖习性等。结果表明,其繁殖期出现在每年2～5月,3月末至4月初为繁殖高峰期;雌雄性比为1∶1.7;卵径为186～214μm;胚胎发育经担轮幼虫、膜内疣足幼虫、疣足幼虫和刚节幼虫而达稚虫。幼虫和幼体的体节(X_1)与体长(Y_1)的回归方程为Y_1=139.77X_1-24.62;幼虫的生长特性为Y_2=323.40X_2~(0.35);幼虫和幼体的实验表明,亚心形扁藻是较好的饵料;疣足幼虫对海水的适宜比重为1.010～1.025;幼虫的生长速度随着投饵密度的增加而加快;在幼虫培养期间应铺以泥沙底质为佳。 相似文献
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台湾海峡西部近海底栖生物生态初步研究 总被引：5，自引：0，他引：5
1961-1964年于台湾海峡西部近海进行了七航次调查,其范围为23°20'-25°54'N,117°11'-119°58'E,水深一般不超过50米,布设了定量采泥189站和定性拖网33站. 本次调查获得的底栖动物已鉴定到种的共392种.种类组成特点:以近岸浅水种占主导地位,而且热带亚热带种占绝对优势,显示了台湾海峡具有热带海区的特征.本海区底栖生物生物量总平均为38.0克/米2,平均密度为116个/米2,生物量组成以棘皮动物占优势,其次是软体动物. 群落的分布特点:(1)阳遂足-海地瓜群落属于近岸低盐性质,主要分布在平潭岛以北受闽江径流影响较大的水域,底质为软泥.(2)歪刺锚参-薄倍棘蛇尾-浅缝合骨螺群落则广泛分布于调查海区,群落种类繁多,结构较复杂.底质为软泥.(3)麦氏偏顶蛤-刘五店沙鸡子-阿曼吉娅虫群落以细砂底为主,局限于北部海区.(4)厦门文昌鱼-瑰斑竹蛏-中华岩鳃-多鳃欧努菲虫群落则以粗、中砂为主,仅分布于南部海区.(5)日本俏羽枝-布纹蚶群落分布在港湾的出口处或岛屿之间,流速较大,底质为砾石或石块. 相似文献
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