Search

The first findings and distribution of larvae of the species Diplophos proximus, family Gonostomatidae, in the Pacific of Colombia are presented. The analyzes show larvae between Bahía Málaga and Tumaco (limits with Ecuador), with low abundances during the seasons of September 2003 and 2005, July and December 2010, December 2013, February-March 2014, June 2016 and June and September 2017, always collected at stations located more than 113 km away from the coast and around Malpelo island. The larvae are elongated and have noticeable changes during development, initially oval eyes, poorly pigmented body without photophores and finally rounded eyes, dorsal pigments and photophores during transformation. The present work contributes with information about distribution and ecology of larvae of D. proximus becoming the first records of catches for the Colombian Pacific, including the description of the larval stages found.

The Amazon Basin is an unquestionable biodiversity hotspot, containing the highest freshwater biodiversity on earth and facing off a recent increase in anthropogenic threats. The current knowledge on the spatial distribution of the freshwater fish species is greatly deficient in this basin, preventing a comprehensive understanding of this hyper-diverse ecosystem as a whole. Filling this gap was the priority of a transnational collaborative project, i.e. the AmazonFish project - https://www.amazon-fish.com/. Relying on the outputs of this project, we provide the most complete fish species distribution records covering the whole Amazon drainage. The database, including 2,406 validated freshwater native fish species, 232,936 georeferenced records, results from an extensive survey of species distribution including 590 different sources (e.g. published articles, grey literature, online biodiversity databases and scientific collections from museums and universities worldwide) and field expeditions conducted during the project. This database, delivered at both georeferenced localities (21,500 localities) and sub-drainages grains (144 units), represents a highly valuable source of information for further studies on freshwater fish biodiversity, biogeography and conservation., Measurement(s)Diversity • Fish • spatial patternTechnology Type(s)digital curationFactor Type(s)geographic locationSample Characteristic - OrganismfishSample Characteristic - Environmentdrainage basinSample Characteristic - LocationAmazon Basin Machine-accessible metadata file describing the reported data: 10.6084/m9.figshare.11920800

RESUMEN Se presentan los primeros hallazgos y distribución de larvas de la especie Diplophos proximus, familia Gonostomatidae, en el Pacífico de Colombia. Los análisis muestran larvas entre bahía Málaga y Tumaco (límites con Ecuador), con abundancias bajas durante las épocas de septiembre de 2003 y 2005, julio y diciembre de 2010, diciembre de 2013, febrero-marzo de 2014, junio de 2016 y junio y septiembre de 2017; siempre colectadas en estaciones ubicadas a más de 113 km de distancia de la costa y en los alrededores de la isla de Malpelo. Las larvas son alargadas y tienen notorios cambios durante el desarrollo, inicialmente ojos ovales, cuerpo poco pigmentado y sin fotóforos y finalmente ojos redondeados, pigmentos dorsales y en transformación presentan fotóforos. El presente trabajo contribuye con información de distribución y ecología de larvas de D. proximus, convirtiéndose en los primeros registros para el Pacífico colombiano, incluida la descripción de los estadios larvales encontrados. ABSTRACT The first findings and distribution of larvae of the species Diplophos proximus, family Gonostomatidae, in the Pacific of Colombia are presented. The analyzes show larvae between Bahía Málaga and Tumaco (limits with Ecuador), with low abundances during the seasons of September 2003 and 2005, July and December 2010, December 2013, February-March 2014, June 2016 and June and September 2017, always collected at stations located more than 113 km away from the coast and around Malpelo island. The larvae are elongated and have noticeable changes during development, initially oval eyes, poorly pigmented body without photophores and finally rounded eyes, dorsal pigments and photophores during transformation. The present work contributes with information about distribution and ecology of larvae of D. proximus becoming the first records of catches for the Colombian Pacific, including the description of the larval stages found.

Se presentan nuevos hallazgos y distribucion de larvas, juveniles y adultos de la familia Callionymidae en la costa del Pacifico de Colombia. Los analisis muestran a larvas y juveniles de la especie Synchiropus atrilabiatus (Garman 1899), con un ambito de distribucion muy amplio a lo largo de toda la costa entre Tumaco (limites con Ecuador) y limites con Panama, con abundancias bajas y medias, durante las epocas de septiembre-octubre de 2002, 2003, 2004, 2005 y febrero-marzo de 2006 y 2014, siempre recolectados en estaciones ubicadas a mas de 54 km de distancia de la costa. Mientras los adultos solo fueron recolectados en Bahia Cupica en 1995 y Arusi en 2005 asociados a la pesca de camaron de aguas profundas entre 67 y 700 m de profundidad.