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An apparatus for Mooring Continuous Plankton Sampler

一种系泊浮游生物连续采样器

基本信息

批准号：
05556033
负责人：
MATSUSHITA Katsumi
金额：
$ 4.35万
依托单位：
The University of Tokyo
依托单位国家：
日本
项目类别：
Grant-in-Aid for Developmental Scientific Research (B)
财政年份：
1993
资助国家：
日本
起止时间：
1993 至 1994
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-05556033/
关键词：
Continuous Plankton Sampler Plankton Pelagic fish eggs Fish Larvae Mooring Observation Resource Fluctuation Mechanism

项目摘要

The aims for construction of the Mooring Continuous Plankton Sampler (MCPS) are (1) simple structure, (2) easy operations, (3) small body to be easy handlingeven with one person, and (4) cheap cost. The main parts consist of (1) sampling nets with plate frame for catch and preservation of plankters, (2) Timer for control the sampling intervals, (3) triger and releasing mechanism the sampling nets, (4) flow meter for estimating the volume of water filtered, (5) main frame, and (6) mooring system.The sampling nets are made from the plastic board (140mmx140mm, 10mm thickness). The plastic boards are made a 100mm diameter hole and ruler at the side respectively. The plankton nets are attached the hole respectively.The working principle is to slide the sampling nets from waiting area to filtering area. and then to preserving area by pantagraph type spring. The stoppers of the sampling nets are released by timer and triger mechanism. The preservation of the plankters collected is carried out by concentrated salt water for harmless for environment.Before begining this project, there were 4 conceptions as MCPS,we tried each type then made a prototype of best working. Mooring tests are sometimes carried out at Tokyo Bay, the sampling nets are functioning properly though some nets bad operation. It was difficult to be good operation with all nets. More improvements are required for perfect operation. We think that it is better to make more strong pantagraph type spring, then all nets will be used under good condition.

系泊连续浮游生物采样器(MCPS)的建造目标是(1)结构简单，(2)操作方便，(3)体积小，便于操作，即使是一个人也能操作，(4)成本低廉。主要由(1)板框采样网、(2)控制采样间隔的定时器、(3)采样网的触发器和释放机构、(4)估计滤水量的流量计、(5)主机和(6)系泊系统组成。采样网由140 mm×140 mm、10 mm厚的塑料板制成。塑料板侧面分别做一个直径100 mm的孔和尺子。浮游生物网分别固定在孔内，工作原理是将采样网从待机区滑动到过滤区。再用PANTAGRAPH型弹簧来保持面积。采样网的塞子由定时器和触发器机构释放。收集到的浮游生物采用浓盐水保存，对环境无害化，在此之前，我们有4个概念，即MCPS，我们尝试了每种类型，并制作了最佳工作的原型。有时在东京湾进行系泊试验，抽样网运行正常，但有些网运行不佳。很难用所有的网都能很好地运作。需要更多的改进才能完美地运行。我们认为最好是制造出更坚固的Pantaggraph式弹簧，这样所有的网才能在良好的条件下使用。