Is Red hump geophagus aggressive?

What is a benthophagous fish?

Benthophagous by nature, mostly employing a feeding strategy whereby mouthfuls of substrate are taken and sifted for edible items with the remaining material expelled via the gills and mouth. Once settled it will readily rise into the water column when food is introduced but continue to browse normally at other times.

What are the different types of Geophagini?

Geophagini – Geophagus, Mikrogeophagus, ‘ Geophagus ‘ brasiliensis group, ‘ Geophagus ‘ steindachneri group, Gymnogeophagus, Satanoperca, Biotodoma, Apistogramma, Apistogrammoides and Taeniacara.

What is the genus Geophagus?

The genus Geophagus was rediagnosed by Kullander (1986) who restricted it to include only those species with paired caudal extensions to the swimbladder lined by 6-12 epihemal ribs plus a greater number of caudal than abdominal vertebrae.

What is the mating process of the ovophilous fish?

Ovophilous, maternal mouthbrooder forming weak temporary pair bonds for the duration of the spawning process, after which the female is responsible for broodcare. Males are polygamous and may breed with several females during the reproductive period. Courtship is initiated by the male, and may last for several hours.

What is a benthic fish?

Benthic fish, sometimes called groundfish, are denser than water, so they can rest on the sea floor. They either lie-and-wait as ambush predators, at times covering themselves with sand or otherwise camouflaging themselves, or move actively over the bottom in search for food.

What does a benthopelagic fish eat?

It feeds on cephalopods, cutthroat eels, grenadiers, snake mackerel, and lanternsharks. Benthopelagic fish inhabit the water just above the bottom, feeding on benthos and zooplankton. Most demersal fish are benthopelagic.

Are demersal fish benthopelagic?

Most demersal fish are benthopelagic. As with other bottom feeders, a mechanism to deal with substrate is often necessary. With demersal fish the sand is usually pumped out of the mouth through the gill slit. Most demersal fish exhibit a flat ventral region so as to more easily rest their body on the substrate.

What is the difference between bottom feeders and benthic fish?

Those bottom feeders with upward-pointing mouths, such as stargazers, tend to seize swimming prey. Benthic fish are denser than water, so they can rest on the sea floor.

What is the subfamily Geophaginae?

Geophagus and a number of related genera are often included in the putative subfamily Geophaginae. Kullander (1998) conducted a morphology -based phylogenetic study in which the neotropical Cichlidae was divided into six subfamilies of which the Geophaginae contained 16 genera divided among three ‘tribes’:

How was the genus Geophagus rediagnosed?

The genus Geophagus was rediagnosed by Kullander (1986) who restricted it to include only those species with paired caudal extensions to the swimbladder lined by 6-12 epihemal ‘ribs’ plus a greater number of caudal than abdominal vertebrae.

What are the different types of Geophagus?

There are three main groups: Geophagus sensu stricto are mostly relatively peaceful, often have long fin extensions and are native to the Amazon, Orinoco and Parnaíba basins, as well as rivers of the Guianas.

What is Geophagus parnaibae?

^ Staeck, W. & Schindler, I. (2006): Geophagus parnaibae sp. n. – a new species of cichlid fish (Teleostei: Perciformes: Cichlidae) from the rio Parnaiba basin, Brazil. Zoologische Abhandlungen (Dresden), 55: 69-75.

What are Geophagus cichlids?

One genus of the group, Geophagus, is popular in the aquatic trade due to its members’ usually more peaceful nature as opposed to other cichlids as well as their striking colours. A group of Geophagus can make for an impressive display. The Eartheaters are a group of Cichlid species endemic to waters throughout South America.

What kind of fish is Geophagus Heckel?

Two new species of cichlid fish genus Geophagus Heckel from the Rio Tocantins drainage (Perciformes: Cichlidae). Geophagus abalios, G. dicrozoster and G. winemilleri (Perciformes: Cichlidae), three new species from Venezuela.

What is a group of Geophagus?

A group of Geophagus can make for an impressive display. The Eartheaters are a group of Cichlid species endemic to waters throughout South America. The group is consisted of five genera including Biotodoma, Gymnogeophagus, Retroculus, Satanoperca and Geophagus.

How do eggs develop in ovoviviparous fish?

In ovoviviparous fish the eggs develop inside the mother’s body after internal fertilisation but receive little or no nourishment directly from the mother, depending instead on a food reserve inside the egg, the yolk. Each embryo develops in its own egg.

How do fish reproduce in the ocean?

Fish reproduction. There may also be a range of secondary organs that increase reproductive fitness. The genital papilla is a small, fleshy tube behind the anus in some fishes, from which the sperm or eggs are released; the sex of a fish often can be determined by the shape of its papilla.

Is the mating process of all fish the same?

The mating process of human beings and animals might be the same, but the sexing process of all the fish breeds are not similar. To know how do fish mate, first know about their reproductive organs and their functionalities.

What is the difference between benthic and benthopelagic?

“True benthics” are the fishes that live on or in the seafloor. “Benthopelagics” are fishes that swim freely in the water column as part of the reef habitat. True benthics, whose lifestyle plants them on and in the seafloor, have denser body masses.

What is the difference between pelagic fish and benthic fish?

IF TOLSTOY HAD WRITTEN ABOUT MARINE LIFE, he might have said that all pelagic fishes are alike but each benthic fish is benthic in its own way. Pelagic fishes have one immediate imperative: To swim fast in a straight line through featureless waters, feeding on other organisms on the go.