Αποτελέσματα Αναζήτησης
3 Ιαν 2022 · This chapter describes in detail the life history of fish and the division and characteristics of the development period, the classification of the life history types of fish, the types of fish eggs, and the morphological characteristics and identification of larvae and juveniles.
The evolution of fishes took place over a timeline which spans the Cambrian to the Cenozoic, including during that time in particular the Devonian, which has been dubbed the "age of fishes" for the many changes during that period.
Summary. Fishes, here defined as ‘non-digitate aquatic vertebrates’, first appear in the Cambrian Period at least 520 million years ago (Ma). They are first represented by fusiform taxa lacking well-developed fins and dermal bone covering.
Fish, or lower vertebrates, occupy the basal nodes of the verte-brate phylogeny, and are therefore crucial in interpreting almost every feature of more advanced vertebrates, including amphib-ians, reptiles, birds and mammals.
Abstract. The study of life history of fish is one of the important contents of shery biology. The life fi history of sh refers to the life course of indi-fi vidual sh from fertilized eggs to adult sh, fi fi and then to aging. The life cycle of sh can be fi divided into several different developmental stages.
In the past 100 years since the birth of fisheries oceanography, research on the early life history of fishes, particularly the larval stage, has been extensive, and much progress has been made in identifying the mechanisms by which factors such as feeding success, predation, or dispersal can influence larval survival.
11 Μαρ 2016 · Despite extensive fossil records and common biogeographic histories, the evolution of these two key groups has rarely been considered together. We therefore examine recent advances in molecular phylogenetics and palaeoecology, and place the evolution of fishes and corals in a functional context.
