Yes, some fish species, like clownfish, can lay over 400 eggs at once. Their high reproductive rate boosts the survival chances of their offspring. However, most of these eggs do not survive to adulthood. Fish generally reproduce by laying eggs, while a few, known as livebearers, give birth to live young. Breeding in aquariums requires … Read more

Most fish, like salmon and cod, develop externally through oviparous reproduction. They lay eggs, and embryos grow outside the mother’s body. In contrast, some fish, such as sharks, have internal development. Their eggs fertilize inside the mother, but she does not provide direct nourishment to the embryos. Conversely, some species, like sharks and certain types … Read more

Fish have high reproductive potential, marked by fecundity, which is the number of eggs produced. Larger fish typically produce more eggs than smaller fish. Environmental factors influence spawning seasonality and energy investment. Understanding these factors sheds light on marine fish populations and their sustainability in ecosystems. Additionally, some fish exhibit parental care, which can further … Read more

Fish develop eggs before mating. During mating, female fish release eggs into the water. Males then fertilize these eggs with sperm. Different species have specific reproductive methods. Generally, female fish have eggs ready for fertilization soon after release, promoting reproduction in the wild. The timing of egg development varies among different species. Some fish, like … Read more

Fish have jelly-like eggs, called roe. They mostly use external fertilization, where males fertilize the eggs outside the female’s body. Some species may have internal fertilization. Egg types vary by species, and certain types, like caviar, are edible and desired by humans for consumption. The fertilization process can occur outside the female’s body or internally, … Read more

Fish do not have calcified eggs. They lay eggs that are surrounded by extraembryonic membranes, which protect the developing embryo. These eggs do not have a hard or soft shell. Like amphibians, fish produce gelatinous egg clutches. These clutches absorb water and create a suitable environment for embryo development. The anatomy of fish eggs varies … Read more

Ray-finned fishes do not have amniotic eggs. Amniotic eggs are found in amniotes like mammals, birds, and reptiles. In contrast, ray-finned fishes and other non-amniotes, such as sharks and amphibians, lay eggs without the protective amniotic membrane. This membrane aids in adaptation to terrestrial environments. Understanding the differences between these reproductive methods highlights key aspects … Read more

Fish do not have amniote eggs and are classified as anamniotes. Anamniotes lay eggs without a protective membrane called the amnion. In contrast, amniotes, which include reptiles and mammals, lay shelled eggs that protect the embryo, allowing them to reproduce on dry land. Fish embryos depend on water for their protection. Fish are classified into … Read more

Fish have a notochord during their embryonic stage. This structure is replaced by bony vertebrae as they develop. Therefore, adult fish do not have a notochord. This change is typical in vertebrates, which include amphibians, reptiles, birds, and mammals, all of which belong to the subphylum Vertebrata. Morphological studies of Atlantic salmon reveal that the … Read more

Some fish, like dwarf corydoras and many cichlids, do not eat their own eggs or fry. Other fish, such as catfish and loaches, may consume eggs. Fish behaviors depend on species, revealing that some dislike eggs while others view them as food. Nature balances these dietary habits within underwater ecology. On the other hand, some … Read more