Results 51 to 60 of about 629 (159)
Ciencias Marinas, 1995 A description of the reproductive biology of the banded guitarfish, Zapterix exasperata (Jordan and Gilbert) is presented. The study was conducted in a fishing camp located in Bahía Almejas on the west coast of Baja California, from August 1990 to June ...
CJ Villavicencio-Garayzar
doaj +1 more source
The Unseen Crisis of Sharks and Rays in Senegal
Ecology and Evolution, Volume 16, Issue 4, April 2026.This study presents a conservative quantitative assessment of shark and ray landings and trade in Senegal, revealing extensive exploitation of threatened species. Surveys at two major artisanal processing sites in the Casamance region recorded over 170,000 individuals, mostly rays, with nearly all biomass comprising species at risk of extinction, and ...
Rima W. Jabado +3 more
wiley +1 more source
, 2017 Nitta, Masato, Nagasawa, Kazuya (2017): Haplocotyle japonica n. gen., n. sp. (Monogenea: Microbothriidae) Parasitic on Rhinobatos hynnicephalus (Elasmobranchii: Rajiformes: Rhinobatidae) in Japanese Waters. Species Diversity 22: 117-125, DOI: 10.12782/sd.
Nagasawa, Kazuya, Nitta, Masato
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Revista de Ciencias, 1997 Se presenta por primera vez para Colombia una raya de rara ocurrencia Zapteryx exaspérata, se presentan datos taxonómicos, morformétricos y bioecológicos. se presenta una guía para identificar 1as esperies de esta familia.
Efrain A. Rubio R., Wilson Ruíz
doaj +1 more source
The Forgotten International Trade of Sawfish Rostral Teeth in Latin America
Conservation Letters, Volume 19, Issue 2, March/April 2026.ABSTRACT All sawfish species are critically endangered with overfishing and retention of highly valued fins, meat, rostra, and rostral teeth as the main threats. The illegal international trade in rostral teeth for use as cockfighting spurs remains poorly known and continues in South America, despite prohibitions of animal origin spurs by most ...
Mariano Cabanillas‐Torpoco +4 more
wiley +1 more source
, 2022 NOTES ON THE PROPOSAL FOR INCLUSION OF GUITARFISH (FAMILY: RHINOBATIDAE) IN APPENDIX II OF CITES IN RELATION TO GLOBAL MANAGEMENT ...
Samantha Sherman (16401984) +2 more
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Rhinobatidae Muller & Henle 1841
, 2016 Family Rhinidae Müller & Henle, 1841 Type genus. Rhina Bloch & Schneider, 1801 (subsequent designation; stem thought to be first confirmed by Jordan, 1923 (van der Laan et al., 2014)). Description. Medium to large shark-like rays (adults to 3.1 m TL) with a variably depressed trunk, weakly formed disc, and a head either thickened and broadly domed ...
Last, Peter R. +2 more
openaire +2 more sources
Journal of Applied Ichthyology, Volume 2026, Issue 1, 2026.The lack of biometric data on chondrichthyan species has impeded the implementation of management strategies essential for the conservation of sharks and rays captured using different fishing gears in coastal ecosystems. This study aims to assess morphometric relationships (length–weight [LW], length–dorsal length [DL], and length–disc width [DW]) and ...
Adrián Felipe González-Acosta +6 more
wiley +1 more source
A Review of the Status of Sharks, Rays and Chimaeras of Panama to Guide Research and Conservation
Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 35, Issue 4, April 2025.ABSTRACT Chondrichthyan fishes (sharks, rays and chimaeras) are a group of high conservation concern globally. Species are impacted by varying threats, although fishing pressure is the primary stressor causing population declines. Panama comprises both Pacific and Caribbean coastlines with a diversity of estuarine and marine habitats supporting small ...
Jorge Manuel Morales‐Saldaña +5 more
wiley +1 more source
, 2004 Last, Peter R. (2004): Rhinobatos sainsburyi n.sp. and Aptychotrema timorensis n.sp. -Two New Shovelnose Rays (Batoidea: Rhinobatidae) from the Eastern Indian Ocean. Records of the Australian Museum 56 (2): 201-208, DOI: 10.3853/j.0067-1975.56.2004.1415,
Peter R. Last +2 more
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