Relationships between individual movement, trophic position and growth of juvenile pike (Esox lucius)
نویسندگان
چکیده
منابع مشابه
Strikes and startles of northern pike (Esox lucius): a comparison of muscle activity and kinematics between S-start behaviors.
S-starts are a major class of fast-start behaviors that serve diverse locomotor functions in fishes, playing roles in both feeding strike and escape startle events. While movement patterns are similar during strike and startle, their motor control mechanisms have not been compared. To investigate heterogeneity in S-start responses and to test the hypothesis that S-starts are generated by the sa...
متن کاملGenetic structure of pike (Esox lucius) reveals a complex and previously unrecognized colonization history of Ireland
AIM We investigated genetic variation of Irish pike populations and their relationship with European outgroups, in order to elucidate the origin of this species to the island, which is largely assumed to have occurred as a human-mediated introduction over the past few hundred years. We aimed thereby to provide new insights into population structure to improve fisheries and biodiversity manageme...
متن کاملMercury Concentration in Muscle and Liver of Pike (Esox lucius) Collected from Anzali International Wetland, Iran
Background: Mercury (Hg) is a major environmental contaminant due to its global ubiquity, tendency to bioaccumulate, and toxicity in wildlife. Mercury accumulation in wetlands threatens critical breeding and foraging habitats of many fish and wildlife species. In this study, mercury concentrations were detected in different tissues of pike. Methods: To achieve these purposes, 58 pikes (Esox l...
متن کاملImpact of pulp and paper mill effluent on egg hatchability of pike (Esox lucius L.).
Toxicants affect reproduction often at concentrations well below lethal levels. Also, the acidification of fresh waters has been shown to cause extinction of teleost fish populations usually through a failure of recruitment from younger generations. Both field and laboratory studies have documented that the greatest susceptibility to low pH occurs in the early developmental stages (e.g. Lee et ...
متن کاملresponses to ultraviolet radiation in larval pike , Esox lucius , of two origins and ages
Ultraviolet radiation (UVR)-induced mortality and behavioural disorder were studied in larval northern pike of two origins and ages. Newly hatched larvae of two differently coloured populations and six-day-old larvae of one population were exposed to four fluence rates of UVR, resulting in total doses from 11.5 to 63 kJ m–2, and monitored for mortality and behaviour. The rate of mortality and t...
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ژورنال
عنوان ژورنال: Ecology of Freshwater Fish
سال: 2017
ISSN: 0906-6691
DOI: 10.1111/eff.12355