Exeter and Its Region
|
From inside the book
Results 1-3 of 43
... species show a decline towards the western end of the Channel . Among these are the whelk ( Buccinum undatum ) , which is much commoner upchannel , and the polyzoan Flustra foliacea and the lamellibranch Spisula elliptica , both of ...
... species , especially dace , which were found to be very numerous at some stations surveyed . The River Creedy is also somewhat polluted in parts and the population of trout appears to be reduced as a result . The Rivers Creedy and Culm ...
... species is probably most abundant in occurrence at Exwick . Little or nothing is known of the breeding habits or the life history of this fish , and like so many other coarse fish species in the area , its biology appears to have ...