Results 71 to 80 of about 41,462 (237)

Cyclic nucleotide-gated channels: structural basis of ligand efficacy and allosteric modulation [PDF]

, 1997
Most working proteins, including metabolic enzymes, transcription regulators, and membrane receptors, transporters, and ion channels, share the property of allosteric coupling. The term 'allosteric' means that these proteins mediate indirect interactions
Lester, Henry A., Li, Jun, Zagotta, William N.   +2 more
core   +1 more source

A wild‐caught rosy barb Pethia conchonius in a British urban pond underscores the need to prevent aquarium releases

Journal of Fish Biology, EarlyView.
Abstract A specimen of rosy barb Pethia conchonius of 51 mm standard length, encountered in an urban pond in London, is reported. This small cyprinid is native to lakes and streams in subtropical regions of southern Asia and is commonly sold as an ornamental fish.
Peter J. Barry, Phil I. Davison, Luke Pearson, Gordon H. Copp   +3 more
wiley   +1 more source

Channel catfish ovarian fluid differentially enhances blue catfish sperm performance

Theriogenology, 2020
For externally fertilizing fishes, interactions between male and female gametes have been shown to have remarkable impacts on sperm performance. Ovarian fluid (OF) and its ability to alter the swimming behavior of fish sperm makes it a determining factor of fertility.
Myers, J.N., Bradford, A.J., Hallas, V.S., Lawson, L.L., Pitcher, T.E., Dunham, R.A., Butts, I.A.E., Myers, Jaelen   +7 more
openaire   +4 more sources

ANALISIS EFISIENSI SALURAN PEMASARAN IKAN LELE DI DESA RASAU JAYA 1 KECAMATAN RASAU JAYA KABUPATEN KUBU RAYA

Jurnal Social Economic of Agriculture, 2014
This study aims to determine the level of efficiency in the marketing channel catfish every marketing agencies. The method used is a survey method. Sampling was conducted with a random sample of respondents is simple.
Dani Apriono, Eva Dolorosa, Imelda
doaj   +1 more source

Fatty Acid Profiles Distinguish Channel Catfish From Three Reaches of the Lower Kaskaskia River and its Floodplain Lakes [PDF]

, 2016
Despite the increasing use of fatty acids (FAs) as biomarkers in aquatic food web analysis, little information is available regarding differences in FA profiles of fish among habitat types in river-floodplain ecosystems. The objectives of this study were
Trushenski, Jesse, Whitledge, Gregory, Young, Matthew   +2 more
core   +1 more source

A new species of Peckoltia (Siluriformes, Loricariidae) from the rapids of the Rio Tocantins‐Araguaia basin, Brazil

Journal of Fish Biology, EarlyView.
Abstract Here, we describe a new species of Peckoltia (Loricariidae; Hypostominae) from the rapids of the Rio Tocantins‐Araguaia basin, previously identified as Peckoltia vittata, using an integrative taxonomy approach. The new species is distinguished from congeners by ventral region presenting diffuse stripes on surface, not presenting spots or ...
Felipe Arian Andrade de Araújo, Marlon Felipe Chumber Ferreira, Aline Nascimento Silva, Wolmar Benjamin Wosiacki   +3 more
wiley   +1 more source

Errors in Length-weight Parameters at FishBase.org [PDF]

, 2011
Background: FishBase.org is an on-line database of fish related data that has been cited over 1500 times in the fisheries literature. Length-weight relationships in fish traditionally employ the model, W(L) = aL^b^, where L is length and W is weight ...
Ajaya Rana, Lucas Marin-Salcedo, Michael Courtney, Simeon Cole-Fletcher   +3 more
core   +1 more source

New insights into Ituglanis (Siluriformes: Trichomycteridae) diversity in Bahia State, eastern Brazil: Description of a new species and conservation status reappraisal

Journal of Fish Biology, EarlyView.
Abstract The northeastern Atlantic Forest of Brazil harbours a remarkable diversity of species of Trichomycteridae, many of which remain poorly understood. This study describes a new species of Ituglanis, endemic to the Ribeirão São Roque, a stream tributary of Rio Piabanha, an affluent of Rio Colônia basin, Bahia State, Brazil.
Paulo J. Vilardo, Axel M. Katz, Wilson J. E. M. Costa   +2 more
wiley   +1 more source

Protein and amino acid requirements of warm-water fishes: a tool to efficient and low-cost fish feed production in Nigeria [PDF]

, 1993
Numerous investigations have utilized various semi-purified and purified diets to estimate the protein and amino acid requirements of several temperate fishes. The vast literature on the protein and amino acid requirements of fishes has continued to omit
Balogun, A.M., Bello-Olusoji, O., Fasakin, E.A.   +2 more
core  

Relationship between the environment and the occurrence of invasive pumpkinseed Lepomis gibbosus in lotic and lentic habitats

Journal of Fish Biology, EarlyView.
Abstract The pumpkinseed Lepomis gibbosus is a freshwater fish species native to North America. It has been introduced to Europe, where it is recognized as one of the worst aquatic invaders due to its high adaptability and invasive potential. This study aimed to determine the presence of L. gibbosus in small to medium‐sized water bodies, both lotic and
Ivan Špelić, Marko Glogoški, Marina Piria   +2 more
wiley   +1 more source