求翻译：依据海洲湾2006年7月-2007年11月的强壮箭虫（Sagitta crassa）现存量，采用聚集强度指标、Iwao聚集格局回归模型、Taylor幂法则分析了强壮箭虫（Sagitta crassa）的空间分布特征和丰度的时空变化。结果表明：强壮箭虫（Sagitta crassa）在调查海域呈聚集分布；强壮箭虫（Sagitta crassa）平均丰度的时空变化差异显著，空间上，中、北部海域的平均丰度高于南部海域，时间上，强壮箭虫（Sagitta crassa）春、冬季节的平均丰度明显高于夏、秋季节。是什么意思？

Spatial distribution of standing crop, according to the Haizhou Bay in July 2006 November 2007 strong arrow worms (sagitta crassa) gathered strength indicators, iwao aggregation pattern of regression model Taylor power law of the strong arrow worms (sagitta crassa) Temporal and spatial variation of

Ocean Bay based on July 2006, November, 2007 - The strongest arrow worms (Sagitta crassa) together with existing, Iwao gathered strength indicators, patterns, Taylor regression model analysis of the power law, strong arrow worms (Sagitta crassa) characteristics of the spatial distribution and abunda

According to the July 2006 in Haizhou Bay of Sagitta crassa (Sagitta crassa) existing content, gathered strength, Iwao pattern of clustered regression analysis model, Taylor power laws Sagitta crassa (Sagitta crassa) spatial and temporal changes in spatial distribution and abundance of. Results show