migratory fish
Spawning of migratory fish species between two reservoirs of the upper Uruguay River, Brazil
... of migratory fish occurred (Table ...of migratory fish in the study area or to the difficulty of finding the fish during spawning, as it occurs at specific times and not during the ...
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Wide reproductive period of a long-distance migratory fish in a subtropical river, Brazil
... long-migratory fish, ecological factors ...long-distance migratory patterns and total spawning behavior show a well-marked reproductive period, between November and ...the migratory ...
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Plasticity in the shape and growth pattern of asteriscus otolith of black prochilodus Prochilodus nigricans (Teleostei: Characiformes: Prochilodontidae) freshwater Neotropical migratory fish
... structure, along with the effect of global climate fluctuations in the Cenozoic, are the basic factors which, according to the refuge hypothesis, caused ecological vicariant popula- tions of vertebrates (Jegu, Santos, ...
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Morphological differentiation among migratory fish species from the Paraná River basin
... Long-distance migratory species using the Piracema Canal to ascend upstream areas differed morphologically and some morphological characteristics are considered important to relate to the swimming performance: ...
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Larvae of migratory fish (Teleostei: Ostariophysi) in the lotic remnant of the Paraná River in Brazil
... The relationships between the densities of the selected migratory species and the environmental variables measured were not clear (Fig. 10). However, temperature was an impor- tant variable, mainly for S. ...
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Individual, spatial and inter-sex variation in somatic growth: a study of Piaractus mesopotamicus (Characiformes: Serrasalmidae), a long-distance freshwater Neotropical migratory fish
... Growth is a fundamental biological process, driven by multiple endogenous (intra-individual) and exogenous (environmental) factors that maintain individual fitness and population stability. The current study aims to ...
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Acoustic barriers as an acoustic deterrent for native potamodromous migratory fish species
... of fish behavioural barriers with the use of acoustic stimuli presents a wide array of possibilities as sound propa- gates much faster in the underwater environment than in air, imposing an intense effect on ...
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Fish diversity in the cascade of reservoirs along the Paranapanema River, southeast Brazil
... maintain migratory fishes is the upper section of Rosana reservoir, which has a short lotic stretch with fluvial ...upward fish movements and isolated the Paranapanema basin (Antonio et ...young ...
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RAPD markers indicate the occurrence of structured populations in a migratory freshwater fish species
... are migratory and are considered very impor- tant species for inland fishing in this river basin (Paiva, ...prevents migratory fish from lower areas reaching most of the river’s upper ...Neotropical ...
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The use of morphometric analysis to predict the swimming efficiency of two Neotropical long-distance migratory species in fish passage
... the fish can easily turn its body (Nanami, 2007) and has a greater positioning ...large migratory fish (Keast & Webb, ...with fish locomotion was similar for the two species ...
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Juliano Vilas Boas Ramos1 , Leda Maria Koelblinger Sodré1 , Mário Luís Orsi2 and Fernanda Simões de Almeida1
... of migratory fish ...on fish species migration ...Neotropical migratory fish ...the migratory species Leporinus elongatus (piapara) in the Canoas Complex - Paranapanema River - ...
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The fish fauna of the Jacaré-Guaçu River basin, Upper Paraná River basin
... low fish fauna similarity between the areas down- and upstream the dam, and all the problems for fish dispersion caused by the Gavião Peixoto Dam, we can hypothesize that both reproductive migration and ...
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Fish predation by semi-aquatic spiders: a global pattern.
... upon fish in the wild, has now become so rare that it is considered a threatened species – largely a consequence of the continuous loss of European freshwater wetland habitat ...predating fish in the wild ...
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Potential of fisheries restocking off the Algarve coast using aquaculture produced marine fish
... IPIMAR's Fish Production Unit were tagged with VEMCO brand V8SC "coded" ...reared fish, 5 of each Diplodus species, when released at 20m depth, near an artificial reef, 2 half acclimated for 2 days ...
180
Effect of storage temperature on histamine formation in Sardina pilchardus and Engraulis encrasicolus
... Samples, of 5 g, were homogenized in 50 mL of 0.4-M perchloric acid with Ultraturrax blender (Janke& Kunkel KG, IlkaWerke, Staufen, Germany) (at room temperature), then centrifuged for 5 min at 1,280 x g, and ...
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Metabolic basis of growth variation in juvenile sole (Solea senegalensis, Kaup 1858)
... Twelve fish with ...the fish were fed a single meal and after a stressful ...all fish at the start of the experiment (control, indicative of basal levels) and after stress ...Individual fish ...
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Fish welfare: Fish capacity to experience pain
... Teleost fish possess similar nociceptive processing systems to those found in terrestrial ...of fish has been the focus of less research than that of higher ...of fish through fisheries, aq- ...
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Fish scales as model for osteogenic cells culture
... The potential of the 3 groups of scales created as scaffolds for cell proliferation and the behavior of osteoblasts MG63 were evaluated. To draw conclusions about it, fibroin films with the same pattern of the scales and ...
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J. Braz. Chem. Soc. vol.22 número3
... The high probability of isomerization of the growing chain during the migratory insertions of the coordinated monomers is the main reason that allow Brookhart’s catalyst systems to generate branched and ...
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Migratory control policies in Spain and the United States
... that migratory control policies “led to the reduction of the number of immigrants detained while trying to illegally enter spain, which implies a dissuasion of intentions right from the ...
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