21. Underwater surveyors focus chiefly on sessile invertebrates ( benthos ), along a transect line. 22. The normal faults have large offsets and transect the volcano into at least four sectors. 23. A transect spacing of 15 nautical miles ( 17.3 miles ) was used. 24. Samples were collected along transects established in potentially susceptible forests or outside the perimeters of nurseries. 25. Iona Island is a public access nature reserve, and the River Subdivision transects the island. 26. Many of the features of transect planning cannot be reproduced without a change to municipal ordinances. 27. Transects should not change from year to year and ideally should sample a variety of habitats.28. The transect , by contrast, decreases the necessity for long-distance travel by any means. 29. This region contain a continuous transect from snow cap mountains, lowland wetlands to tropical marine environment. 30. The Cheyenne belt transects and cuts off the south edge of the older Trans-Hudson orogeny.
