| the distribution and host range of species of the blood fluke sanguinicola in british freshwater fish. | the distribution of host range of sanguinicola armata, s. inermis and s. volgensis in british freshwater fish are described. s. inermis has been recorded in carp cyprinus carpio, crucian carp carassius carassius and tench tinca tinca in southern, central and eastern england and in koi carp imported from japan. s. armata has been detected in pike esox lucius and tench and s. volgensis has been found in chub leuciscus cephalus, dace leuciscus leuciscus, perch perca fluviatilis, roach rutilus rutil ... | 1994 | 7706678 |
| endocrine (sexual) disruption is not a prominent feature in the pike (esox lucius), a top predator, living in english waters. | the high incidence of intersex roach (rutilus rutilus) in some united kingdom rivers that has been associated with exposure to sewage treatment works (stws) effluent led us to hypothesize that top predator fish also may be affected by estrogenic chemicals, because they are likely to bioaccumulate lipophilic compounds through a predator-prey relationship. to investigate this possibility, pike (esox lucius) were sampled both upstream and downstream of stws and then examined for total estrogenic ac ... | 2005 | 16117120 |
| towards the conservation of crucian carp carassius carassius: understanding the extent and causes of decline within part of its native english range. | the extent and causes of crucian carp carassius carassius decline were assessed during an initial study of c. 25 ponds in north norfolk, eastern england, u.k., which was then replicated (a validation study) on another c. 25 ponds in an adjacent area. of these ponds, c. 40 are known to have contained c. carassius during the 1970s-1980s. in the initial and validation studies, c. carassius were found in only 11 of these ponds, yielding declines of 76% (five of 21 ponds) and 68% (six of 19 ponds), r ... | 2011 | 22136242 |