Coregonus lavaretus
Parental sexual ornamentation and offspring performance in whitefish (Coregonus lavaretus)
... (Coregonus lavaretus), males do not provide paternal care to the offspring and females produce large number of eggs, which are fertilized externally, making the species an ideal model for the test of ...
19
Genetic characteristics of Polish whitefish (Coregonus lavaretus maraena) broodstocks – recommendations for the conservation management
... ABSTRACT: European whitefish Coregonus lavaretus maraena is an important fish species in Poland. Unfor- tunately, most of the whitefish populations are currently threatened with extinction, generally due to ...
7
Prediction of survival rate in European white fish (Coregonus lavaretus) fry on three different feeding regimes
... During the early stages of white fish, survival rate is a very effective parameter on future fry’s sustainability, especially when they are going to be released into the natural habitat for restocking. The aim of this ...
15
Energy Allocation and Yield and Cost of Growth in Young Esox Lucius and Coregonus Lavaretus (Teleostei): Influence of Species, Prey Type and Body Size
... ENERGY ALLOCATION AND YIELD AND COST OF GROWTH IN YOUNG ESOX LUCIUS AND COREGONUS LAVARETUS TELEOSTEI: INFLUENCE OF SPECIES, PREY TYPE AND BODY SIZE BY WOLFGANG WIESER, ANDREAS LAICH AND[r] ...
16
Physiology of the adrenocortical tissue in the whitefish, coregonus lavaretus, linnaeus
... The aim of the present work io to Investigate the physiology of the adrenocortical tissue of a single teleost species,to discover a the structure of the adrenocortical tissues and their [r] ...
201
The physiology of the reproductive cycle of the powan of Loch Lomond, Coregonus lavaretus (L) (Euteleostei, Salmonidae) in relation to the deposition and mobilization of storage products
... 85% embedding alcohol: distilled water 3, tertiary for.. 70% embedding alcohol: distilled water 6, tertiary for.[r] ...
340
Endocrine control of reproduction of the powan of Loch Lomond, 'Coregonus lavaretus (L )' (Teleostei): with special reference to the pituitary gonadotrophin gonadal steroid axis
... standard curve male powan.. curve and its powan.[r] ...
322
Environmental timing and control of reproduction in the powan of Loch Lomond 'Coregonus lavaretus (L) (Teleostei)' in relation to its pineal organ
... The darker to processes, cell gives rise containing smooth endoplasmic reticulum, polysomes, and ribosomes, form gap junctions which with other photoreceptor cells and possibly another c[r] ...
220
Growth processes in the two Scottish populations of powan, Coregonus lavaretus (L ) (Eateleosteia, Salmonidae)
... Plate 40 Late exogenous vitellogenesis in an adolescent female Loch Lomond 3rd May 1986 age 2+ Transverse section of ovary, 4pm; 155x Oocyte showing maximum development of exogenous vite[r] ...
243
The food and feeding of powan Coregonus lavaretus (L ) (Salmonidae: Coregoninae) in two Scottish lochs
... In determining the size of sub-sample used in this study to estimate total numbers of prey and prey species contained in fish stomachs, trials were carried out on stomach samples collect[r] ...
349
Application of acoustic telemetry to understand post-stocking behaviour of bloater (Coregonus hoyi), a reintroduced fish in Lake Ontario
... Fish stocking is a common practice in freshwater and marine systems worldwide aimed to supplement naturally occurring wild populations, re-establish extirpated species, or introduce non-native species for recreation or ...
133
Polymorphism of the Lake, Migratory Populations and Reared Broodstocks of Whitefish (Coregonus spp. L.) in Northern Poland and its Importance in Maintaining Ecological Biodiversity
... Total DNA was isolated from the sampled material using phenol-chloroform extraction, following Bernatchez, Savard, Dodson and Pallotta (1988), and kept at –70°C until analysis. DNA of all fish was analysed using the ...
16
The Effect of Light Intensity and Tank Wall Colour on Survival and Growth of Peled Coregonus peled Gmelin 1788 Larvae
... Chadio (2000) reported that fish reared in black tanks had significantly higher plasma cortisol levels than those reared in white tanks, and specific growth rate and final weight was significantly higher and feed ...
9
Modelling future hydroclimatic effects on the Coregonus migratorius spawning migration in the Selenga River and Lake Baikal
... A modelling approach was used to assess the effect of cli- mate change on streamflow and hydrological conditions for Coregonus migratorius spawning. Regional climate change projections from Global Circulation ...
7
Intraspecific Scale Variation among Different Populations of Vendace (Coregonus albula L.) in Some Polish Lakes
... The reported study has been undertaken to check if the shape of vendace scales can be a parameter permitting reliable differentiation between the populations of fish from three lakes. The measurements were made on 354 ...
8
Brood Stock Establishment through Hormonal Induction of Gamete Expression and Cryopreservation of Spermatozoa in Bloaters (Coregonus hoyi)
... proportion of cryopreservation protocols developed are for salmonids, while others often address more vulnerable aquatic species such as the Redside Dace (Butts et al. 2013) and many species of sturgeon (Acipenser spp.) ...
202
Predicting Spawning Habitat for Lake Whitefish Coregonus clupeaformis and Cisco Coregonus artedi in the Lake Erie and Lake Ontario Regions using Classification and Regression Tree (CART) and Random Forest Models
... Whitefish Coregonus clupeaformis and Cisco Coregonus artedi occurred in high numbers before habitat degradation, overfishing, invasive species, and other factors caused significant declines in their ...
62