Results 31 to 40 of about 4,731 (218)

Urban fish as sentinels of public health water significant bacteria [PDF]

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia
The bacteriological evaluation of the urban fish (Cichlidae) of Lake Pampulha (Belo Horizonte, Brazil) (Cichlidae) was determined at four sites of collection considered with the highest fishing activity.
A.A. Fernandes   +11 more
doaj   +1 more source

Kinematics of mouthbrooding inOreochromis niloticus(Cichlidae) [PDF]

open access: yesJournal of Experimental Biology, 2016
ABSTRACTMany species from several different families of fishes perform mouthbrooding, where one of the sexes protects and ventilates the eggs inside the mouth cavity. This ventilation behaviour differs from gill ventilation outside the brooding period, as the normal, small-amplitude suction-pump respiration cycles are alternated with actions including ...
Van Wassenbergh, Sam   +6 more
openaire   +2 more sources

Four new species of Cichlidogyrus (Platyhelminthes, Monopisthocotyla, Dactylogyridae) from Lake Victoria haplochromine cichlid fishes, with the redescription of C. bifurcatus and C. longipenis

open access: yesParasite
African cichlids are model systems for evolutionary studies and host-parasite interactions, because of their adaptive radiations and because they harbour many species of monogenean parasites with high host-specificity.
Gobbin Tiziana P.   +4 more
doaj   +1 more source

Sistemática del pez Petenia splendida (Perciformes: Cichlidae) en el lago Petén Itzá, Guatemala

open access: yesRevista de Biología Tropical, 2011
El Lago Petén Itzá se ubica en la zona de usos múltiples de la Reserva de la Biosfera Maya, entre sus especies ícticas encontramos al pez blanco (Petenia splendida) de alto valor comercial.
Anaitté Méndez   +2 more
doaj   +2 more sources

Independent evolution of the specialized pharyngeal jaw apparatus in cichlid and labrid fishes

open access: yesBMC Evolutionary Biology, 2007
Background Fishes in the families Cichlidae and Labridae provide good probable examples of vertebrate adaptive radiations. Their spectacular trophic radiations have been widely assumed to be due to structural key innovation in pharyngeal jaw apparatus ...
Azuma Yoichiro   +3 more
doaj   +1 more source

Freshwater fishes of the Waterberg aquatic ecoregion, South Africa: Diversity, taxonomic conflicts and conservation concerns

open access: yesJournal of Fish Biology, EarlyView.
Abstract Southern Africa is a region denoted by both high levels of fish diversity, some of it cryptic and unrecognised by current taxonomy, and severely threatened freshwater ecosystems. The Waterberg, a key aquatic ecoregion of the greater Limpopo River basin in South Africa, represents an area with high terrestrial conservation value but is lacking ...
Darragh J. Woodford   +7 more
wiley   +1 more source

Crecimiento de Oreochromis niloticus en estanques de liner, utilizando dos tipos de alimento multifunción al 24% y 14% de proteína

open access: yesRevista Iberoamericana de Bioeconomía y Cambio Climàtico, 2023
Antecedentes: La tilapia (Oreochromis niloticus) es de importancia comercial y alimenticia para las familias nicaragüense. Objetivo: Evaluar el crecimiento de tilapia en estanques de liner, aplicando dos tipos de alimento multifuncional que contenían 24%
Carmen Isabel Hernández Rivera   +2 more
doaj   +1 more source

Review of the southern African slender stonebashers, genus Heteromormyrus Steindachner 1866 (Teleostei: Mormyridae), with description of six new species

open access: yesJournal of Fish Biology, EarlyView.
Abstract Recent molecular studies have advanced our knowledge of the taxonomic diversity and generic placement of the slender stonebashers, previously placed in the genus Hippopotamyrus, in southern Africa. These fishes were recently transferred to the genus Heteromormyrus whose range encompasses the Kwanza, Kunene, Okavango, Zambezi, Pungwe and Buzi ...
Tadiwa I. Mutizwa   +3 more
wiley   +1 more source

Incidences of taillessness in Acanthopagrus arabicus and Oreochromis niloticus collected from the Shatt al-Arab River, Basrah, Iraq

open access: yesFisheries & Aquatic Life
Taillessness (the absence of the caudal fin and some of the caudal peduncle) is described in Acanthopagrus arabicus Iwatsuki and Oreochromis niloticus (L.) specimens collected from the Shatt al-Arab River, Basrah, Iraq.
Abed Jassim M.   +2 more
doaj   +1 more source

Assessing the population structure of Plagioscion squamosissimus (Teleostei, Perciformes, Sciaenidae) from the São Francisco River, Bahia, Brazil, using body morphology and otolith shape signatures

open access: yesJournal of Fish Biology, EarlyView.
Abstract The south American silver croaker, Plagioscion squamosissimus, holds significant importance for the artisanal fisheries in the sub‐middle and lower courses of the São Francisco River, located in northeastern Brazil. To investigate the population structure of this species along its longitudinal profile, a total of 150 individuals (50 fish per ...
F. L. Freitas   +4 more
wiley   +1 more source

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