Results 81 to 90 of about 414 (162)

Revisiting the History of Ornamental Aquaculture in Europe to Understand the Benefits and Drawbacks of Freshwater Fish Imports

Reviews in Aquaculture, Volume 17, Issue 2, March 2025.
ABSTRACT Ornamental aquaculture and fishkeeping are very popular with millions of enthusiasts worldwide. The number of newly imported fish species for ornamental purposes grew slowly from World War I until the 1980s. It then exponentially increased until now with more than 7900 species and a large number of scientifically undescribed morphotypes.
Jindřich Novák, Dieter Hohl, Martin Stuchlík, Jaroslav Hofmann, Michael F. Tlusty, André Lincoln Barroso Magalhães, Alberto Maceda‐Veiga, Surya Gentha Akmal, Gen Hua Yue, Pradeep Kumkar, Sean M. Marr, Joseph R. Sara, Nir Stern, Andrew L. Rhyne, James M. Furse, Lukáš Kalous, Jiří Patoka   +16 more
wiley   +1 more source

Length‒Weight and Length‒Length Relationships of Freshwater Fish Species Caught by Professional Fishermen in the Itaipu Reservoir, Brazil

Journal of Applied Ichthyology, Volume 2025, Issue 1, 2025.
Length‒weight relationships (LWRs) and length‒length relationships (LLRs) were estimated for 63 and 58 freshwater fish species, respectively, captured in the Itaipu Reservoir, Paraná River Basin, Paraná State, Brazil. Sampling was carried out from March 1987 to July 2024 at 63 professional fishing sites within the reservoir’s area of influence ...
Éder André Gubiani, Luiz Guilherme dos Santos Ribas, Anderson Luís Maciel, Geuza Cantanhêde, Laís Thayse Meier, Pitágoras Augusto Piana, Caroline Henn, Yintao Jia   +7 more
wiley   +1 more source

Potamotrygon falkneri Castex & Maciel 1963

, 2011
Published as part of da Silva, João Paulo C. B. & de Carvalho, Marcelo R., 2011, A taxonomic and morphological redescription of Potamotrygon falkneri Castex & Maciel, 1963 (Chondrichthyes: Myliobatiformes: Potamotrygonidae), pp. 209-232 in Neotropical Ichthyology 9 (1) on pages 211-222, DOI: 10.1590/s1679-62252011000100021, http://zenodo.org/record ...
da Silva, João Paulo C. B., de Carvalho, Marcelo R.   +1 more
openaire   +2 more sources

Serum chemistry, thyroxine concentration, and blood cell morphology of wild, young Blackchin Guitarfish Glaucostegus cemiculus sampled on the eastern Mediterranean coastline

Journal of Aquatic Animal Health, Volume 36, Issue 3, Page 281-299, September 2024.
Abstract Objective The Blackchin Guitarfish Glaucostegus cemiculus is endemic to the Mediterranean Sea and is critically endangered, but relevant routine laboratory data are unavailable. Our objectives were to determine the packed cell volume (PCV), comprehensive serum chemistry analytes, and serum total thyroxine (sTT4) concentration; compare serum ...
Nevo Schwartz, Danny Morick, Barak Azrieli, Aviad Scheinin, Dan Tchernov, Itamar Aroch   +5 more
wiley   +1 more source

From historical expedition diaries to whole genome sequencing: A case study of the likely extinct Red Sea torpedo ray

Zoologica Scripta, Volume 53, Issue 1, Page 32-51, January 2024.
Abstract Torpedo rays (Torpedinidae, Torpediniformes) are small to moderately large batoids that produce an electric discharge. They are distributed worldwide in temperate and tropical seas and are, as a result of their bottom‐dwelling behaviour, susceptible to trawl fishing and often end up as victims of bycatch.
Anja Palandačić, Martin Kapun, Carola Greve, Tilman Schell, Sandra Kirchner, Luise Kruckenhauser, Nikolaus Szucsich, Nina Bogutskaya   +7 more
wiley   +1 more source

Activity and habitat use of two species of stingrays (Myliobatiformes: Potamotrygonidae) in the upper Paraná River basin, Southeastern Brazil

Neotropical Ichthyology
The life history of freshwater stingrays (Potamotrygonidae) under natural conditions has been poorly documented. In this study, we investigated theperiod of activity and the habitat use of two species of the genus Potamotrygon in the upper Paraná River ...
Domingos Garrone Neto, Virgínia Sanches Uieda   +1 more
doaj   +1 more source

RECTAL GLAND OF FRESHWATER STINGRAYS,POTAMOTRYGONSPP. (CHONDRICHTHYES:POTAMOTRYGONIDAE)

The Biological Bulletin, 1978
1. Contrary to some reports, a rectal gland is present in strictly freshwater stingrays of South American rivers (Potamotrygon spp.). 2. The gland has the location and histological features of the salt-secreting rectal gland of marine elasmobranchs, but is much reduced in size and number of tubules. 3. Its residual function, if any, is unknown. 4.
Thorson, Thomas B., Wotton, Robert M, Georgi, Todd A   +2 more
openaire   +4 more sources

Morphology of lateral line canals in Neotropical freshwater stingrays (Chondrichthyes: Potamotrygonidae) from Negro River, Brazilian Amazon

Neotropical Ichthyology
The relationship between the distribution of the lateral line canals and their functionality has not been well examined in elasmobranchs, especially among Neotropical freshwater stingrays of the family Potamotrygonidae.
Akemi Shibuya, Jansen Zuanon, Maria Lúcia G. de Araújo, Sho Tanaka   +3 more
doaj   +1 more source

Ergasilus trygonophilus sp. nov. (Copepoda: Ergasilidae) a branchial parasite of freshwater stingrays (Potamotrygonidae) from state of Pará, Brazil

Zoologia (Curitiba), 2010
Ergasilus trygonophilus sp. nov. is described from freshwater stingrays (Potamotrygon spp. and Plesiotrygon iwamae Rosa, Castello & Thorson, 1987) from the state of Pará, Brazil.
Marcus V. Domingues, Taísa M. Marques
doaj   +1 more source

Potamotrygon falkneri Castex & Maciel 1963

, 2014
Published as part of The, Stefan Koerber & Only, L'., 2014, List of Freshwater Fishes from Argentina - Update 15., pp.
The, Stefan Koerber, Only, L'.
openaire   +1 more source