A5035360663- Marine and fisheries research
- Fish Biology and Ecology Studies
- Cephalopods and Marine Biology
- Mercury impact and mitigation studies
- Heavy metals in environment
- Marine Bivalve and Aquaculture Studies
- Fish Ecology and Management Studies
- Environmental Toxicology and Ecotoxicology
- Identification and Quantification in Food
- Genetic diversity and population structure
- Veterinary Pharmacology and Anesthesia
- Ichthyology and Marine Biology
- Coral and Marine Ecosystems Studies
- Marine animal studies overview
- Turtle Biology and Conservation
- Morphological variations and asymmetry
- Aquaculture Nutrition and Growth
- Marine Biology and Ecology Research
- Heavy Metal Exposure and Toxicity
- Water Quality and Pollution Assessment
- Cruise Tourism Development and Management
- Migration, Aging, and Tourism Studies
- Fisheries and Aquaculture Studies
- Employment, Labor, and Gender Studies
- Evolution and Paleontology Studies
Instituto Español de Oceanografía
2012-2024
Centro Oceanográfico de Canarias
2012-2024
Instituto Volcanológico de Canarias
2012-2024
Consejo Superior de Investigaciones Científicas
2024
Atlantic Environmental Research Center
2012-2022
Universidad de La Laguna
2012-2022
Organismo Autónomo Parques Nacionales
2012-2022
The European sardine (Sardina pilchardus, Walbaum 1792) is indisputably a commercially important species. Previous studies using uneven sampling or limited number of makers have presented sometimes conflicting evidence the genetic structure S. pilchardus populations. Here, we show that whole genome data from 108 individuals 16 areas across 5000 km species’ distribution range (from Eastern Mediterranean to archipelago Azores) support at least three clusters. One includes Azores and Madeira,...
Abstract Otolith shape analysis is an efficient fish stock identification tool. However, most applications used left and right otoliths or only one of them arbitrarily chosen without testing for biases resulting from potential directional bilateral asymmetry (DA) in otolith shape, i.e. a unimodal population-level deviation form symmetry between shapes. In this study, 560 bogues (Boops boops) were sampled 11 geographical locations the Canary Islands to Aegean Sea elliptical Fourier...
During the last decades, there has been a growing interest in Atlantic chub mackerel, Scomber colias, owing to its northward expansion across East Ocean. This trend observed from regions of higher abundance off northwest Africa waters Iberian and Mediterranean Sea. Changes spatial distribution mackerel have previously studied various theoretical models proposed elucidate changes biomass. However, within this fishing context, only limited number studies attempted understand how species...
The otolith, found in both inner ears of bony fish, has mainly been used to estimate fish age. Another application that developing significantly recent years, however, is the use otolith shape as a tool for stock identification. Often, studies have directly asymmetry between right and left otoliths. We tested magnitude directional sagittal otoliths (left vs. right) 2991 individuals according their catch locations, we selected species evaluate whether may itself be boundaries. Elliptical...
The reproductive cycle of the blue jack mackerel, Trachurus picturatus, had not been described for Canary Islands. Between March 2005 and 2006 monthly samples T. picturatus were collected randomly at central fishery wharf from commercial catches purse-seiners in Tenerife Island waters (Canary Islands). Some 2472 specimens analysed, with total lengths 10.4 to 31.9 cm. Although females outnumbered males summer, more abundant sex ratio (1.36 : 1). Based on evolution gonado-somatic index...
Sustainable management of transboundary fish stocks hinges on accurate delineation population structure. Genetic analysis offers a powerful tool to identify potential subpopulations within seemingly homogenous stock, facilitating the development effective, coordinated strategies across international borders. Along West African coast, Atlantic chub mackerel (
Otolith shape analysis has been extensively employed to distinguish stocks and populations of marine fish species. While the majority studies have Elliptic Fourier descriptors (EFD) for this purpose, an alternative approach was introduced in 2005 founded on Wavelet Transform, using à trous multiscale signal representation with a B3-Spline function. This not only improved biological mathematical interpretation but also empowered user select more suitable level based contour complexity....
Los trabajos versarán sobre aspectos de ecología, recursos naturales, paisaje, ges tión ambiental,
Abstract Small pelagic fish play an important role in marine trophic webs and human food security. Among those, Sardinella aurita represents extremely valuable resource West Africa, where it is assumed to conform a transboundary stock. During the last decade, quantitative stock assessment has not been possible NW African waters due limitation of indices used; however, critical biomass decline observed, considered overexploited. In order delineate population structure species twelve...
Abstract A total of 140 specimens Scomber colias were collected from the Canary archipelago waters during first semester 2021, with 20 samples each seven main islands. After analyzing concentrations metals (Al, Zn, Cd, Pb, Fe, and Cu) ICP-OES, significant variations observed among islands, Tenerife Gran Canaria containing higher levels Al, while those Lanzarote Fuerteventura had elevated Cu. These differences are probably related to greater anthropogenic activity around coasts, leading...
Atlantic chub mackerel is a pelagic species present in the Ocean that recent decades has expanded northwards eastern Atlantic. Fish samples were collected scientific surveys and commercial catches between 2011 2019. We analysed geographical variation of biological parameters (age, length, weight condition), as well length-weight relationship, maturity-at-length spawning season onset duration five areas (from south to north): Canary Islands, Gulf Cadiz, western Portuguese coast, northwestern...
Status assessment of exploited fish populations is a general requirement to ensure sustainability fisheries in both global and local contexts. The blue jack mackerel Trachurus picturatus (Bowdich, 1825) remains unassessed data-limited fishery the eastern central Atlantic, within waters Canary Islands (Spain) off coast northwest Africa. This most southwestern targeted species' distributional range. To obtain basic life-history information, total 2 472 specimens were analysed, ranging from...