Woody Woodrow, a Parks and Wildlife pollution biologist, said the fish kill likely resulted from a neap tide, a period of abnormal tides that leads to oxygen depletion of the water.
32.
Now separated from Muskeget by a stretch of fairly shallow water, it is accessible by kayakers, and it is possible to walk there from Muskeget, but only at moon neap tide.
33.
In contrast, when the Sun is at 90?from the Moon as viewed from Earth, the combined gravitational effect on tides is correspondingly reduced, causing the lower " neap tides ".
34.
The higher and lower semidiurnal tides vary in amplitude, and during neap tide, one or both high tides each day are not high enough to reach the grounds where the snails feed.
35.
The contractor twice tried to close the gap with earth at low-water neap tide, but each time the water broke through to make a gap wide through which the tide poured at.
36.
During neap tides, they exhibit much longer closing periods than during the spring tide The website MolluSCAN eye is largely devoted to the online study of their daily valve behavior in Europe ( France ).
37.
This arrangement caused complaints in 1581, when neap tides did not reach a level to cause the gates to open, and the lock keeper would not open them because the water was used by the mills.
38.
During neap tides, when the Moon and Sun's gravitational force vectors act in quadrature ( making a right angle to the Earth's orbit ), the difference between high and low tides is smaller.
39.
In some respects the dock was of a slightly larger design that Walker's 1840 proposal : water depth was ( spring to neap tide ), and the entrances onto the Humber and River were wide respectively.
40.
Stevin pleaded for the idea that the attraction of the Moon was responsible for the tides and spoke in clear terms about ebb, flood, spring tide and neap tide, stressing that further research needed to be made.
