Results 1 to 10 of about 6,684 (211)
Age and growth of the highly exploited narrownose smooth-hound (Mustelus schmitti) (Pisces: Elasmobranchii) [PDF]
, 2017 The narrownose smoothhound (Mustelus schmitti) is the most exploited elasmobranch of Argentina, Brazil, and Uruguay and is considered endangered (IUCN Red List of Threatened Species).
Blasina, Gabriela Elizabeth +2 more
core +3 more sources
Bransonelliformes – a new order of the Xenacanthimorpha (Chondrichthyes, Elasmobranchii) [PDF]
Fossil Record – Mitteilungen aus dem Museum für Naturkunde, 2007 The order Bransonelliformes is erected for the genera <i>Bransonella</i> Harlton, 1933 and <i>Barbclabornia</i> Johnson, 2003 based on the distinct characters of an inverted "V"-nested pattern of ornamentation preliminary on the labial aspect at the tooth cusps, the presence of labial foramina, and the occasional occurrence of a
Oliver Hampe, A. P. Ivanov
openalex +7 more sources
Drivers of diversification in sharks and rays (Chondrichthyes: Elasmobranchii)
Frontiers in Ecology and EvolutionElasmobranchs (sharks and rays) are a charismatic lineage of unquestionable ecological importance in past and present marine ecosystems. Represented by over 1200 species, elasmobranchs have undergone substantial shifts in taxonomic diversity since their ...
Joel H. Gayford +2 more
doaj +3 more sources
Age and growth of Zapteryx brevirostris (Elasmobranchii: Rhinobatidae) in southern Brazil [PDF]
, 2018 Age and growth studies are fundamental to successful fisheries management. Zapteryx brevirostris (Muller & Henle, 1841) is distributed off the Brazilian continental shelf and this species is assessed as "Vulnerable" in the Red List of the International ...
Carmo, Wanessa P. D. +2 more
core +5 more sources
Sexual Size Dimorphism in Rays and Skates (Elasmobranchii: Batoidea)
Ecology and EvolutionABSTRACTSexual size dimorphism (SSD) is a widely observed but poorly understood phenomenon in which male and female animals differ in body size (e.g., length or mass). Despite extensive research on the interspecific distribution of SSD across various lineages, the evolutionary drivers behind male‐biased and female‐biased SSD remain contentious.
Joel H. Gayford +4 more
openaire +3 more sources
The Phenomenon of Piebaldism in Sharks: A Review of Global Sightings and Patterns
Ecology and EvolutionChromatic disorders in elasmobranchs (sharks and rays) have been reported in several species, but little is known about their true abundance or consequences for survival and fitness.
Darren A. Whitehead +9 more
doaj +2 more sources
Frontiers in Conservation Science, 2022 Monitoring population size and dynamics of threatened or low-density species is often both logistically difficult and costly. Recently, social media has emerged as a new tool for species monitoring.
Julia Saltzman +8 more
doaj +1 more source
Mitochondrial DNA. Part B. Resources, 2021 Skates, Chondrichthyes fishes from order Rajiformes, are the most species-rich group of all Batoidea. However, their phylogenetic relationships and systematics is still a highly discussed and controversial subject.
André Gomes-dos-Santos +6 more
doaj +1 more source
Fishes, 2022 Elasmobranchii (sharks and rays), which have peculiar and vulnerable life-history traits, are highly threatened by fishing activities. Indeed, between 53% and 71% of Mediterranean elasmobranch species are at risk of extinction. In this context, using the
Fabio Falsone +7 more
doaj +1 more source
Molecular characterization of marine and coastal fishes of Bangladesh through DNA barcodes
Ecology and Evolution, 2021 This study describes the molecular characterization of marine and coastal fishes of Bangladesh based on the mitochondrial cytochrome c oxidase subunit I (COI) gene as a marker.
Md. Sagir Ahmed +3 more
doaj +1 more source