Results 71 to 80 of about 1,685 (198)
Growth of different year classes of smelt Osmerus eperlanus L. in Lake Tyrifjorden, Norway
Smelt Osmerus eperlanus L. were collected during spawning run in May in Lake Tyrifjorden in southern Norway. Age determination was carried out by otoliths. Fish length (Y) and otolith radius (X) were correlated (r = 0.954).
Erik Garnås
doaj
Reproduction of external fertilizing vertebrates is typically constrained to either fresh or salt water, not both. For all studied amphibians and fishes, this constraint includes immotile sperm that are activated after ejaculation only by the specific ...
José Beirão +3 more
doaj +1 more source
ABSTRACT Commercial fishing is often assumed to have greater impacts than recreational fishing, and many fisheries assessments overlook the latter. Yet, numerous coastal and freshwater fish populations are subject to both fishing types and environmental pressures, all influencing biomass, body size and community structure and making management outcomes
Eglė Jakubavičiūtė +3 more
wiley +1 more source
Nachträgliche Bemerkung über die Mikropyle von Osmerus eperlanus
NACHTRÄGLICHE BEMERKUNG ÜBER DIE MIKROPYLE VON OSMERUS EPERLANUS Archiv für Anatomie, Physiologie und wissenschaftliche Medicin (-) Archiv für Anatomie, Physiologie und wissenschaftliche Medicin (-) Nachträgliche Bemerkung über die ...
Buchholz, Reinhold
core +2 more sources
Physical factors which might influence spawning site selection and hatching success in anadromous rainbow smelt (Osmerus mordax) were investigated. Water depth, water velocity, distance upstream, stream temperature, tide height, and estimated spawning ...
Hulbert, P J
core +3 more sources
Fishery at the northwestern Okhotsk Sea coast is analyzed for the period from 2000 to 2019. Pacific herring, saffron cod, pacific cod, capelin, flounders (Limanda aspera, Pleuronectes quadrituberculatus and Platichthys stellatus), and smelts (Hypomesus ...
V. P. Ovsyannikov
doaj +1 more source
Finite mixture models revealed that older, larger harbor seals specialize in salmon predation at setnets in Hokkaido, Japan, suggesting targeted management strategies focusing on these specialist individuals could effectively reduce fishery conflicts while protecting the broader seal population.
Takahito Masubuchi, Mari Kobayashi
wiley +1 more source
Pleistocene fishes (Coregonus, Osmerus, Microgadus, Gasterosteus) from Green Creek, Ontario, Canada
Specimens of Coregonus cf. artedii and Microgadus tomcod are reported for the first time from calcareous nodules at Green Creek. The occurrence of Osmerus mordax and fully plated Gasterosteus aculeatus in these nodules is confirmed.
Don E. McAllister +2 more
core +1 more source
ABSTRACT Most research comparing wild and hatchery‐produced fish focuses on recently stocked individuals. As a result, these studies only investigate the behavior of naive hatchery fish, leaving a knowledge gap regarding long‐term survivors. We compared the movement, space use, and survival of wild and hatchery‐reared brown trout (Salmo trutta) that ...
Daniel Palm +6 more
wiley +1 more source
The smelt Osmerus eperlanus in Scotland
Smelt populations have been recorded since the 18th Century from at least 15 rivers in Scotland, but over the last Century the species has suffered a severe decline and has disappeared from all its former sites except the rivers Cree, Forth and Tay. These populations must now be regarded as having high conservation importance.
Maitland, Peter, Lyle, Alex
openaire +2 more sources

