Results 21 to 30 of about 17,361 (269)

Predator avoidance in extremophile fish [PDF]

open access: yes, 2013
Extreme habitats are often characterized by reduced predation pressures, thus representing refuges for the inhabiting species. The present study was designed to investigate predator avoidance of extremophile populations of Poecilia mexicana and P ...
Arias-Rodriguez, Lenin   +7 more
core   +2 more sources

The first record of the invasive Asian fish tapeworm (Schyzocotyle acheilognathi) from an endemic cichlid fish in Madagascar

open access: yesHelminthologia, 2018
The Asian fish tapeworm, Schyzocotyle acheilognathi (Yamaguti, 1934) (Cestoda: Bothriocephalidea), is an invasive parasite of freshwater fishes that have been reported from more than 200 freshwater fish worldwide. It was originally described from a small
Scholz T.   +3 more
doaj   +1 more source

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

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

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

Structure and diversity of fish communities in man-made ponds of the Niger Delta (southern Nigeria) [PDF]

open access: yes, 2018
1. A survey of eight local earthen hand-dug ponds located within the freshwater swamps of a Niger Delta area (southern Nigeria) was conducted over a period of 3 months.
Ajong, Stephanie Nwanefulu   +11 more
core   +2 more sources

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

Pisces, Perciformes, Cichlidae, Laetacara dorsigera (Heckel, 1840): distribution extension and first record for Uruguay River basin, and state of Rio Grande do Sul, southern Brazil [PDF]

open access: yesCheck List, 2010
The present study records for the first time the small cichlidae fish Laetacara dorsigera (Heckel, 1840) at Uruguay River basin and state of Rio Grande do Sul, southern Brazil, previously known from Amazon, Paraná and Paraguay River basins.
Luis Lanés   +2 more
doaj   +3 more sources

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

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