Search results
Results from the WOW.Com Content Network
Parachromis managuensis is a large species of cichlid native to freshwater habitats in Central America, where it is found from Honduras to Costa Rica. [2] The binomial name refers to Lake Managua in Nicaragua, from which the holotype was obtained. [3]
Every Spanish noun has a specific gender, either masculine or feminine, in the context of a sentence. Generally, nouns referring to males or male animals are masculine, while those referring to females are feminine. [1] [2] In terms of importance, the masculine gender is the default or unmarked, while the feminine gender is marked or distinct. [2]
It occurs when the organism's sex changes at some point in its life. [1] A sequential hermaphrodite produces eggs (female gametes) and sperm (male gametes) at different stages in life. [2] Sequential hermaphroditism occurs in many fish, gastropods, and plants. Species that can undergo these changes do so as a normal event within their ...
Thalassoma bifasciatum forages for zooplankton, mollusks, small crustaceans (such as shrimp and krill), worms, other motile invertebrates, and the eggs of smaller fish, [4] as well as ectoparasites [4] on other fish. Initial phase males eat primarily zooplankton from currents, and females and initial phase males have certain hunting times ...
The stoplight parrotfish is a protogynous hermaphrodite that shows full sexual dichromatism, meaning that it changes its sex from female to male during its lifespan, and its color changes with its sex change. [4] The sex change is most likely due to the control of hormones, in particular, 11-ketetestosterone (11-KT). [5]
You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made.
As sex-determining mechanisms, TSD and genetic sex determination (GSD) should be considered in an equivalent manner, [8] which can lead to reconsidering the status of fish species that are claimed to have TSD when submitted to extreme temperatures instead of the temperature experienced during development in the wild, since changes in sex ratio ...
Gonochorism has evolved independently multiple times. [8] It is very evolutionarily stable in animals. [9] Its stability and advantages have received little attention. [10]: 46 Gonochorism owes its origin to the evolution of anisogamy, [11] but it is unclear if the evolution of anisogamy first led to hermaphroditism or gonochorism.