Results 71 to 80 of about 2,581 (229)

Biological Aspects, Stock and Conservation Status of Giant Oceanic Manta Ray, Manta birostris in the Indian Ocean [PDF]

, 2014
March 18-19, 2013The giant oceanic manta ray (Manta birostris) is a ray species of the Family Mobulidae, the largest type of rays in the world. A study on Manta rays from the Indian Ocean was conducted from April 2001 to August 2005 at Cilacap-Central ...
DHARMADI, FAHMI
core   +1 more source

Fish distribution across altitudinal gradients in the Upper Paraguay River Basin: Implications for conservation in the Pantanal region

Conservation Science and Practice, Volume 7, Issue 7, July 2025.
This paper approaches the patterns in fish distribution across the altitudinal gradient in the Upper Paraguay River basin, from uplands to the floodplain. We compiled more than 75,000 available fish records and registered 342 fish species and your distribution along altitudinal gradient. Floodplain portion have higher species diversity than headwaters,
Adriana Maria Espinoza Fernando, Francisco Severo‐Neto, Fabiane Silva Ferreira, Lúcia Mateus, Karina K. Tondato‐Carvalho, Elaine Antoniassi Luiz Kashiwaqui, Heriberto Gimenes Junior, Wladimir M. Domingues, Carla Simone Pavanelli, Henrique Ledo Lopes Pinho, Jerry Penha, Yzel Rondon Súarez   +11 more
wiley   +1 more source

Morphological abnormality in a Longnose Stingray Hypanus guttatus (Bloch & Schneider, 1801) (Myliobatiformes: Dasyatidae) [PDF]

Biota Neotropica, 2019
Abstract: A Longnose stingray Hypanus guttatus (Bloch & Schneider, 1801) embryo with a major asymmetrical morphological abnormality to its pectoral fin was obtained from commercial shrimp fisher's bycatch, off the coast of the Amazon River Mouth in northern Brazil.
Kurt Schmid, Marcelo Andrade, Fabiola Machado, Juliana Araujo, Eglé Corrêa, Tommaso Giarrizzo   +5 more
openaire   +2 more sources

Design and Validation of an Open–Close Device for Integrated Environmental DNA Sampling Detects A Depth Gradient in Indian Ocean Deep‐Sea Fish Assemblages

Ecology and Evolution, Volume 15, Issue 2, February 2025.
The goal of this study was to leverage existing survey technology to design and test an eDNA sampler that captures an integrated eDNA sample over the length of a deep‐water transect. We provide a biological interpretation of the resulting data, demonstrating the usefulness of such technology to understand the ocean environments, using fish species as ...
Cindy Bessey, Andrew Martini, Alasdair Currie, Will Ponsonby, Aaron Tyndall, Ryan Crossing, Vinícius Werneck Salazar, Kathryn L. Dawkins, John J. Pogonoski, Glenn Moore, Nick Mortimer, John K. Keesing   +11 more
wiley   +1 more source

A massive invasion of fish species after eliminating a natural barrier in the upper rio Paraná basin

Neotropical Ichthyology
Based on long-term studies in the upper rio Paraná basin, in addition to a broad review of literature and other information, we were able to identify 33 species of native fishes in the lower rio Paraná basin that successfully colonized the upper rio ...
Horácio Ferreira Júlio Júnior, Claudenice Dei Tós, Ângelo Antonio Agostinho, Carla Simone Pavanelli   +3 more
doaj   +1 more source

Genetic diversity assessment for the vulnerable migratory cownose ray Rhinoptera bonasus (Myliobatiformes: Rhinopteridae) from the southwestern Atlantic Ocean

Neotropical Ichthyology, 2021
Rhinoptera bonasus is a bento-pelagic and highly migratory species occurring from southern United States to northern Argentina. Due to overfishing effects, R. bonasus is currently at risk, classified by the IUCN Red List as vulnerable.
Bruno C. Souza, Vanessa P. Cruz, Talita R. A. Almeida, João Bráullio L. Sales, Luís Fernando S. Rodrigues-Filho, Marcelo Vianna, Matheus M. Rotundo, Claudio Oliveira, Fausto Foresti   +8 more
doaj   +1 more source

Facies analysis, stratigraphy and marine vertebrate assemblage of the lower Miocene Chilcatay Formation at Ullujaya (Pisco basin, Peru) [PDF]

, 2018
This paper is the first integrated account of the sedimentology, stratigraphy and vertebrate paleontology for the marine strata of the Chilcatay Formation exposed at Ullujaya, Pisco basin (southern Peru).
Bianucci G., Bosio G., Coletti G., Collareta A., de Muizon C., Di Celma C., Gariboldi K., Gioncada A., Lambert O., Landini W., Malinverno E., Pierantoni P. P., Urbina M., Villa I. M.   +13 more
core   +4 more sources

Ichthyological Bulletin of the J.L.B. Smith Institute of Ichthyology; No. 43 [PDF]

, 1980
A new species of stingray, Hexatrygon bickelli Heemstra and Smith, is described from a specimen washed up on a beach at Port Elizabeth on the south coast of South Africa. This new species differs from all other batoid fishes in having six gill arches and
Heemstra, Phillip C, Smith, Margaret Mary   +1 more
core   +1 more source

Los Rajiformes (Chondrichthyes, Batomorphii) del Plioceno inferior de la Formación Arenas de Huelva, suroeste de España [PDF]

, 2014
EL Neógeno marino del suroeste de España ha sido objeto de numerosos estudios, su contenido fosilífero ha sido objeto de numerosos trabajos, abordando diferentes grupos como malacofauna (Andrés, 1982; González-Delgado, 1983), foraminíferos (Sierro, 1984;
Abad,Manuel, Antunes,Miguel, Balbino,Ausenda, Civis,Jorge, Garc�a,Edith X. M., Luz Gonz�lez-Regalado,MA, Ruiz,Francisco, Toscano-Grande,Antonio   +7 more
core   +1 more source

First Record of Partial Albinism in the Chinese Fanray, Platyrhina Sinensis (Elasmobranchii: Myliobatiformes: Platyrhinidae)

Thalassas: An International Journal of Marine Sciences
A female albino fanray specimen was collected by trawl from the southern Taiwan Strait on April 11, 2022. This unique individual was identified as the Chinese fanray, Platyrhina sinensis (Bloch & Schneider, 1801), based on morphological identification ...
Zhuang Yan, S. Ke, Mingru Chen, Jiamei Xiao   +3 more
semanticscholar   +1 more source