Results 21 to 30 of about 439 (134)
Nuclear DNA content in Galaxias maculatus (Teleostei: Osmeriformes: Galaxiidae) [PDF]
Latin American Journal of Aquatic Research, 2008 36
Pedro Jara‐Seguel +3 more
+8 more sources
Ecología Austral, 2015 La variación espacial de las comunidades de helmintos en un sistema acuático puede atribuirse a diferentes factores bióticos y abióticos. En América del Sur, este tipo de estudios no ha sido realizado en ambientes de agua dulce.
María Fernández +2 more
doaj +5 more sources
Morphological Variability of the Smelts (Osmeriformes: Osmeridae) of the Russian Far East
Биология моря, 2023 This paper presents the first study comparing the smallmouth smelts – the Japanese smelt Hypomesus nipponensis McAllister, 1963, the pond smelt H. olidus (Pallas, 1814), the marine smelt H. japonicus (Brevoort, 1856) – and the Asiatic smelt Osmerus dentex Steindachner et Kner, 1870 with the use of the variance of fluctuating asymmetry, the coefficient ...
Н. С. Романов
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Fiordos de Chile: Potencial zona de crianza de Bathylagichthys parini (Pisces: Osmeriformes: Bathylagidae) [PDF]
Deep Sea Research Part I: Oceanographic Research Papers, 2011 The northern Mid-Atlantic Ridge, from Iceland to the Azores (MAR), is the largest topographical feature in the Atlantic Ocean. Despite its size, few studies have described dietary patterns of pelagic fishes along the MAR. MAR-ECO, a Census of Marine Life field project, aimed to describe the food web structure of abundant fish species along the ridge ...
Mauricio F. Landaeta +2 more
+8 more sources
CLADOGENESIS AND LOSS OF THE MARINE LIFE-HISTORY PHASE IN FRESHWATER GALAXIID FISHES (OSMERIFORMES: GALAXIIDAE) [PDF]
Evolution, 2007 Switches from migratory (diadromous) to nonmigratory (freshwater) life histories are known to have occurred repeatedly in some aquatic taxa. However, the significance of the loss of diadromy as an initiator for speciation remains poorly understood. The rivers of New Zealand's South Island house a species flock of recently derived nonmigratory galaxiid ...
Jonathan M. Waters, Graham P. Wallis
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Increased offspring provisioning by large female fish and consequences for reproductive efficiency. [PDF]
Ecol Evol, 2023 (a) A weighted female total length versus egg diameter trendline (red) supports that larger females produce larger eggs. (b) However, when egg diameter is converted to egg volume (red) and further, number of eggs per mL gonad (blue), it demonstrates an egg size‐fecundity trade‐off.
Koenigbauer ST, Höök TO.
europepmc +2 more sources
DNA barcoding the ichthyofauna of the Beibu Gulf: Implications for fisheries management in a seafood market hub. [PDF]
Ecol Evol, 2023 The fish fauna of the beibu gulf, one of the largest sea food hubs in Southeast Asia, is characterized here by DNA barcoding. The 1080 DNA barcodes analyzed show concordance between morphological identifications and DNA‐based species delimitation. Lower level of diversity detected here compared to historical observations is concordant with the stock ...
Jiang C +6 more
europepmc +2 more sources
CONTENIDO DE ADN NUCLEAR EN GALAXIAS PLATEI (STEÍNDACUNER, 1898) (TELEOSTEI: OSMERIFORMES: GALAXIIDAE) [PDF]
Latin American Journal of Aquatic Research, 2008 The number and arrangement of the cephalic pores of the lateral line in Chilean fishes of the family Galaxiidae, were studied. The study showed that Brachygalaxias differs from Galaxias, in the absence of mandibular pores and in pore number reductions in the preopeopercular series. The most important variations were recorded in Galaxias globiceps and G.
Pedro Jara‐Seguel +2 more
+8 more sources
Latin American Journal of Aquatic Research, 2016 The nuclear DNA content (2C value) was determined in the commercial fish Galaxias maculatus (Galaxiidae) was determined by microdensitometry of erythrocyte nuclei after Feulgen staining; rainbow trout erythrocytes with a known 2C value were used as a standard. The 2C value of G. maculatus was 2.21 ± 0.12 pg and its C value was equivalent to 1.105 pg (1,
Arturo Angulo +2 more
+10 more sources
Myxidium biliare sp. n. (Myxozoa) from gall bladder of Galaxias maculatus (Osmeriformes: Galaxiidae) in Patagonia (Argentina) [PDF]
Folia Parasitologica, 2003 Myxidium biliare sp. n., a new myxosporean species parasitizing the gall bladder of Galaxias maculatus (Jenyns), in Patagonia, is described. Its coelozoic plasmodia were floating free in the bile. Spores are fusiform 13.7 +/- 0.9 microm long and 6.9 +/- 0.6 microm wide, with rounded ends in frontal view and slightly pointed ends in sutural view; shell ...
Gustavo Viozzi, Verónica Flores
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