(Table 1) Depth and time of first appearance of species identified by fish remains in ODP Site 169-1034

Ocean Drilling Program Leg 169S retrieved a complete Holocene sequence from Saanich Inlet, British Columbia, Canada. Fish and diatom remains were extracted from sediments at Site 1034. Very small fish bones, teeth and scales were ubiquitous except in the lowermost glaciomarine clays; scales degraded with depth. In the identifiable fraction, Pacific herring were the most abundant with Pacific hake and cartilaginous fish yielding significant fractions. Fish remains appear just before 12 000 BP but greatest diversity does not occur until about 6500 BP. A smoothed abundance curve highlights two periods of maximal abundance at about 1500 and 6500 BP. Abundances in the last 1000 years are lower than the rest of the record. A correlation with abundances of seven phytoplankton taxa is significant; diatoms explain about a third of the variance. This study demonstrates the use of fish and diatoms from the same paleosedimentary matrix to examine millennia-scale correlations between primary and tertiary production.

大洋钻探计划（Ocean Drilling Program, ODP）第169S航次从加拿大不列颠哥伦比亚省的萨尼奇湾获取了完整的全新世沉积序列。研究人员从该航次1034站位的沉积物中提取了鱼类与硅藻遗骸。极小型鱼类的骨骼、牙齿及鳞片在绝大多数层位中广泛分布，仅在最底部的冰海相黏土层中缺失；鱼类鳞片随埋藏深度的增加逐渐发生降解。在可鉴定的遗骸组分中，太平洋鲱（Pacific herring）为优势类群，太平洋无须鳕（Pacific hake）与软骨鱼类也占据了显著的组分比例。鱼类遗骸最早出现于距今12000年前的地层，但物种多样性的峰值直至约6500年前才出现。经平滑处理的鱼类丰度曲线显示，存在两个丰度高峰期，分别对应约1500年前与6500年前。过去1000年的鱼类丰度整体低于该沉积记录的其余时段。鱼类丰度与7个浮游植物类群的丰度存在显著相关性；其中硅藻可解释约三分之一的丰度变异。本研究证实，利用同一古沉积基质中的鱼类与硅藻遗骸，可探究千年尺度上初级生产力与第三级生产力之间的相关性。