Results 31 to 40 of about 2,992 (213)

Komposisi, Keanekaragaman Dan Rasio Kelamin Ikan Elasmobranchii Asal Sungai Kakap Kalimantan Barat [PDF]

open access: yes, 2012
Sifat biologi elasmobranchii seperti fekunditas rendah, pertumbuhan lambat, umur relatif panjang danresiko kematian tinggi pada semua tingkat umur menjadikannya kelompok ikan yang memiliki resiko kepunahan palingcepat dibandingkan kelompok lain.
Candramila, Wolly, Junardi, Junardi
core   +1 more source

Eocene squalomorph sharks (Chondrichthyes, Elasmobranchii) from Antarctica [PDF]

open access: yesJournal of South American Earth Sciences, 2017
Rare remains of predominantly deep-water sharks of the families Hexanchidae, Squalidae, Dalatiidae, Centrophoridae, and Squatinidae are described from the Eocene La Meseta Formation, Seymour Island, Antarctic Peninsula, which has yielded the most abundant chondrichthyan assemblage from the Southern Hemisphere to date.
Andrea Engelbrecht   +3 more
openaire   +3 more sources

Hybodont sharks of the English Bathonian and Callovian (Middle Jurassic). [PDF]

open access: yes, 2008
Recent bulk sampling and study of museum collections has revealed a high diversity of hybodont sharks from the English Bathonian, with 15 species being recognised.
Rees, J.   +3 more
core   +1 more source

Species diversity of critically endangered pristid sawfishes (Elasmobranchii: Pristidae) Elasmobranchii: Pristidae (Malay Archipelago)

open access: yesBiodiversitas Journal of Biological Diversity, 1970
Sutarno, Setyawan AD, Suyatna I. 2012. Species diversity of critically endangered pristid sawfishes (Elasmobranchii: Pristidae) Elasmobranchii: Pristidae (Malay Archipelago). Biodiversitas 13: 161-171. The pristid sawfishes (Pristidae) are notable because of their sawlike rostrum and large body size (up to seven meters).
SUTARNO SUTARNO   +2 more
openaire   +1 more source

A new genus of Late Cretaceous angel shark (Elasmobranchii; Squatinidae), with comments on squatinid phylogeny

open access: yes, 2020
Maisey, John G., Ehret, Dana J., Denton, John S.S. (2020): A new genus of Late Cretaceous angel shark (Elasmobranchii; Squatinidae), with comments on squatinid phylogeny.
Denton, John S. S.   +4 more
core   +1 more source

Kekayaan Jenis Ikan Elasmobranchii di TPI Bajomulyo Kabupaten Pati dan Status Konservasinya [PDF]

open access: yes, 2022
The wealth of marine biota species in Indonesia are very diverse, both from bony fish and cartilaginous fish (Elasmobranchii). The Elasmobranchii fish are currently facing an extinction rate problem due to overfishing. Based on the IUCN Red List, 1 shark
Putri, Khoirinida Suftiyani   +1 more
core   +1 more source

The Phylogeny of Rays and Skates (Chondrichthyes: Elasmobranchii) Based on Morphological Characters Revisited

open access: yesDiversity, 2022
Elasmobranchii are relatively well-studied. However, numerous phylogenetic uncertainties about their relationships remain. Here, we revisit the phylogenetic evidence based on a detailed morphological re-evaluation of all the major extant batomorph clades (skates and rays), including several holomorphic fossil taxa from the Palaeozoic, Mesozoic and ...
Villalobos-Segura, Eduardo   +6 more
openaire   +7 more sources

Kontribusi ikan pari (Elasmobranchii) pada perikanan cantrang di laut jawa

open access: yes, 2017
Tinggi tingkat eksploitasi ikan hiu (Shark) dan pari (Elasmobranchii) di Indonesia telah memberikan predikat pada negara ini sebagai negara dengan total produksi ikan-ikan Elasmobranchii yang terbesar di dunia.
Fahmi   +5 more
core   +1 more source

Age at maturity of some fish species distributed in Turkish marine waters (Actinopterygii and Elasmobranchii)

open access: yes, 2017
We collected data on the age at maturity (tm) and maximum reported age (tmax) for 153 stocks of marine fishes in Turkey, belonging to 59 species, 24 families and 2 classes (Actinopterygii and Elasmobranchii). Among Actinopterygii tm had an average of 1.8
Gündoğdu S.   +5 more
core   +1 more source

A new species of Lonchidiidae (Hybodontiformes) from the Late Jurassic of Brazil (Aliança Formation, Jatobá Basin)

open access: yesThe Anatomical Record, EarlyView.
Abstract The Aliança Formation (Jatobá Basin) represents lacustrine deposits formed in oxygenated waters that hosted a diverse fauna, including Hybodontiform sharks. Within this group, the Family Lonchidiidae comprises 11 valid genera, with Parvodus previously reported in Brazilian deposits from the Brejo Santo Formation (Araripe Basin, Late Jurassic ...
Larissa de Souza Ribeiro   +1 more
wiley   +1 more source

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