A re-evaluation of relationships between fish size, acoustic frequency, and target strength
A re-evaluation of relationships between fish size, acoustic frequency, and target strength
复制标题
重新评估鱼的大小、声波频率和目标强度之间的关系
DOI：
10.1006/jmsc.1996.0099
复制
发表时间：
1996
影响因子：
4.5
通讯作者：
R. F. Coombs
中科院分区：
文献类型：
--
作者：
S. McClatchie;John E. Alsop;R. F. Coombs
鱼类背部目标强度的测量有很多，但相对较少的研究比较估计方法或尝试将不同研究的数据结合到鱼的大小、声频和目标强度（或声截面）之间的一般关系中。我们编辑并更新了之前有关鱼的大小、声频和声截面的回归总结。将海洋鱼类的实验测量分为鳔鱼和非鳔鱼物种，将模型结果与实验数据进行比较，对比海洋鱼和淡水鱼的目标强度，并将新西兰商业鱼类的先前和新目标强度置于新回归的背景下。方差分析用于显示物种、淡水鱼与海洋鱼、鳔鱼与非鳔鱼、模型鱼与实验鱼以及死鱼与活鱼对最大背侧目标强度和鱼长度之间关系的显着影响。对于 gadoids 的实验结果，我们发现了重要的物种和活鱼与死鱼（或击晕）对目标强度与长度关系的影响。还测试了目标强度对鱼长度的二次依赖性，发现这是例外而不是规则。现有的俯仰倾斜角数据已被编译，并且需要标准偏差至少为 15° 的正态分布来描述大多数分布。
There are many measurements of dorsal aspect target strength of fish, but relatively few studies compare estimation methods or attempt to combine data from different studies into general relations between fish size, acoustic frequency and target strength (or acoustic cross-section). We edited and updated earlier summary regressions relating fish size, acoustic frequency and acoustic cross-section. Experimental measurements on marine fish were separated into swimbladder and non-swimbladder species, model results compared with experimental data, target strengths of marine, and freshwater fish were contrasted, and previous and new target strengths of commercial New Zealand fish species were placed in the context of the new regressions. Analysis of variance was used to show significant effects of species, freshwater vs. marine, swimbladder vs. non-swimbladder fish, model vs. experimental, and dead vs. alive fish on the relationship between maximum dorsal aspect target strength and fish length. For experimental results on gadoids we found significant species and live vs. dead (or stunned) fish effects on the target strength to length relationship. The quadratic dependence of target strength on fish length was also tested and found to be the exception rather than the rule. Existing pitch tilt angle data was compiled and a normal distribution with standard deviation of at least 15° was required to describe most distributions.