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Misael D Morales Vargas

Misael D Morales Vargas
Biosean · Whale watching and marine science

MS Marine Biology

About

11
Publications
2,323
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Citations
Introduction
I am based in Tenerife, Spain and working as an independent researcher, directing BIOSEAN, a Citizen Science project that combines whale watching and marine science. I am interested in understanding cetaceans biology and ecology. Please contact me for more info on how to participate.

Publications

Publications (11)
Poster
Full-text available
The study took place in the Special Area of Conservation Teno-Rasca, a marine protected area in South West Tenerife, Spain (28°04'N 16°48'W), where 17 field surveys were conducted for a period of 6 weeks in the summer of 2019 during whale watching tours. The number of boats around a group was estimated and a total of 90 audio files (.WAV) of short-...
Article
Over the last decades global warming has caused an increase in ocean temperature, acidification and oxygen loss which has led to changes in nutrient cycling and primary production affecting marine species at multiple trophic levels. While knowledge about the impacts of climate change in cetacean's species is still scarce, practitioners and policyma...
Article
Full-text available
Age and growth estimation in fishes using bony structures usually presents some disadvantages in the analysis of growth rings due to the morphologic characteristics of the species. Therefore it is recommended to examine more than one structure through direct observation and by applying statistical methods. The objective of this study was to compare...
Data
Fig. Total fish length vs total cleithra radius of the grunt (Haemulon steindachneri) from Southwest Margarita Island. Venezuela.
Article
Full-text available
The protection of the habitats used by juvenile sharks is a management strategy that has recently caught the attention of fishery biologists. In the present study, we evaluated the population of the lemon shark (Negaprion brevirostris) from Los Roques Archipelago in order to identify the nursery area, describe the size composition, and examine the...
Article
Full-text available
The protection of the habitats used by juvenile sharks is a management strategy that has recently caught the attention of fishery biologists. In the present study, we evaluated the population of the lemon shark (Negaprion brevirostris) from Los Roques Archipelago in order to identify the nursery area, describe the size composition, and examine the...
Technical Report
Full-text available
The European purse seine fishery of the Indian Ocean (IO) has been particularly affected by Somali piracy in the recent years. Consequently, several vessels left the IO and the overall carrying capacity of the fleet decreased by 25% between 2005-2008 and 2009. To address security issues, fishing companies defined in 2008 a large exclusion zone off...
Article
Full-text available
La edad y el crecimiento del pez Haemulon steindachneri fueron determinados por medio de los otolitos sagitales (método directo) y la distribución de frecuencia de tallas (método indirecto). Un total de 953 individuos fueron capturados por la flota artesanal de Boca del Río, suroeste de la isla de Margarita, entre julio 2005-junio 2006. Se establec...
Article
Full-text available
Studies on fish age and growth are essential to establish models on population dynamics. We determined age and growth of the grunt Haemulon steindachneri from the Southwest Margarita Island using sagita otoliths (direct method) and length frequency (indirect method). A total of 953 individuals were captured by the handcrafted fleet from Boca del Ri...
Presentation
Full-text available
La determinación de la edad y el crecimiento de peces a través de las partes duras, presenta algunos inconvenientes en la lectura de los anillos motivados a las características morfológicas de cada una de ellas, por lo que se recomienda comparar más de una estructura a través de la observación directa de los anillos de crecimiento y la aplicación d...
Poster
Full-text available
En Venezuela, el cherechere, Haemulon steindachneri es una de las especies más abundantes de la Familia Haemulidae. Forma grandes agregaciones en los fondos blandos de la plataforma continental, especialmente en la región nororiental donde se captura tanto, en la pesca de arrastre como con chinchorros playeros. Con el fin de contribuir al conocimie...

Questions

Question (1)
Question
German native speakers or very good german speakers: What is the correct term in german for costal upwelling ?

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Cited By

Projects

Projects (2)
Project
To use citizen science to gain insights into cetacean diversity and distribution throughout a marine protected area off the Southern coast of Tenerife.
Project
To compare otoliths and cleithra of the grunt Haemulon steindachneri from southwest Margarita Island, Venezuela and establish which is the adequate bony structure for age and growth studies of the species.