Gyrodactylus spp. diversity in native and introduced minnow (Phoxinus phoxinus) populations: no support for “the enemy release” hypothesis
نویسندگان
چکیده
منابع مشابه
Temperature-dependent development of cardiac activity in unrestrained larvae of the minnow Phoxinus phoxinus.
The minnow (Phoxinus phoxinus) was raised up to the stage of swim bladder inflation at temperatures between 10 degrees C and 25 degrees C, and the time of development significantly decreased at higher temperatures. Accordingly, initiation of cardiac activity was observed at day 2 in 25 degrees C animals and at day 4 in 12.5 degrees C animals. Only a minor increase in body mass was observed duri...
متن کاملThe central nervous control of colour change in the minnow (Phoxinus phoxinus L.). II. Tectal ablations in normal fish.
Except for a few observations by von Frisch (1911), Dijkgraaf (1949), and Wichers (cited by Healey, 1957), no work has been done on the central nervous control of colour change, anterior to the medulla oblongata. Von Frisch performed a series of experiments in which he stimulated various parts of the minnow brain. After negative results from the cerebellum and the optic tectum he concluded that...
متن کاملInfection ecology of Philometra ovata (Nematoda: Philometridae) in a wild European minnow (Phoxinus phoxinus) population in Finland.
Seasonal life cycle of body cavity dwelling (BCD) Philometra ovata (Nematoda: Philometridae) has been reported in southern and central European countries, but its swim bladder dwelling (SBD) stage and northern populations have remained unstudied. In this study, we investigated the seasonal life cycle and infection ecology of P. ovata in both swim bladder and body cavity in the European minnow (...
متن کاملThe Identification of Thyrotrophin-secreting Cells in the Pituitary Gland of the Minnow (Phoxinus phoxinus) By E. J. W. BARRINGTON
Evidence is given for the existence of two main types of cyanophil cell in the median zone of the glandular lobe (adenohypophysis) of the minnow, distinguishable by their distribution and by their cytological characteristics. Both types are positive to the periodic acid Schiff (PAS) technique, but one (type 2 of this account) also gives a positive response to the aldehyde-fuchsin (AF) technique...
متن کاملNutrient loading and grazing by the minnow Phoxinus erythrogaster shift periphyton abundance and stoichiometry in mesocosms
1. Anthropogenic activities in prairie streams are increasing nutrient inputs and altering stream communities. Understanding the role of large consumers such as fish in regulating periphyton structure and nutritional content is necessary to predict how changing diversity will interact with nutrient enrichment to regulate stream nutrient processing and retention. 2. We characterised the importan...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Parasites & Vectors
سال: 2016
ISSN: 1756-3305
DOI: 10.1186/s13071-016-1306-y