Respiration of a Sublittoral Community
Respiration of a Sublittoral Community
复制标题
舌下群落的呼吸
作者：
K. Smith
从1969年7月到1970年7月，研究了乔治亚州萨皮罗岛附近沿海群落的呼吸作用。群落呼吸总量1月为53.7 ml O_2 m(-2)hr(-1)， 7月为92.7 ml O_2 m(-2)hr（-1）。群落呼吸与水温呈显著正相关。年群落呼吸量估计为676.6升O_2 m(-2)yr（-1）。大型动物群包括10门103种。物种丰度从7月的744个/m2到3月的14213个/m2不等。无灰干生物量从10月份的7.3 g/m2增加到3月份的20.2 g/m2。大型动物呼吸作用占群落呼吸作用的5% ~ 26%。细菌是群落的主要功能成分，占总呼吸量的30% ~ 60%。小动物-微动物-微植物呼吸作用占群落呼吸总量的25% ~ 58%。沉积物化学氧化对总摄氧量的贡献为1月的2.8 ml O_2 m(-2)hr(-1) ~ 7月的8.5 ml O_2 m(-2)hr（-1）。
Respiration of a sublittoral community was examined off Sapelo Island, Georgia, from July 1969 through July 1970. Total community respiration ranged from 53.7 ml O_2 m(—2)hr(—1) in January to 92.7 ml O_2 m(—2)hr(—1) in July. A positive correlation was found between community respiration and water temperature. Annual community respiration was estimated to be 676.6 liters O_2 m(—2)yr(—1). The macrofauna consisted of 103 species representing ten phyla. Species abundance ranged from 744 individuals/m2 in July to 14,213 individuals/m2 in March. Biomass (ash free dry wt) increased from 7.3 g/m2 in October to 20.2 g/m2 in March. Macrofaunal respiration comprised from 5 to 26% of community respiration. Bacteria were the major functional component of the community accounting for 30% to 60% of the total respiration. Meiofaunal—microfaunal—microfloral respiration contributed from 25% to 58% to total community respiration. Sediment chemical oxidation was responsible for 2.8 ml O_2 m(—2)hr(—1) in January to 8.5 ml O_2 m(—2)hr(—1) in July of the total oxygen uptake.