A5041199718- Identification and Quantification in Food
- Fish Ecology and Management Studies
- Ichthyology and Marine Biology
- Fish Biology and Ecology Studies
- Genetic diversity and population structure
- Environmental DNA in Biodiversity Studies
- Genetic and phenotypic traits in livestock
- Marine Ecology and Invasive Species
- Water Quality Monitoring Technologies
- Data Quality and Management
- Marine and fisheries research
- Fisheries and Aquaculture Studies
- Environmental Toxicology and Ecotoxicology
- Isotope Analysis in Ecology
- Food Supply Chain Traceability
- CRISPR and Genetic Engineering
- Insect behavior and control techniques
- Marine animal studies overview
- Marine Bivalve and Aquaculture Studies
- Parasitic infections in humans and animals
- Meat and Animal Product Quality
- Teaching and Learning Programming
- Aquaculture Nutrition and Growth
- Parasitic Infections and Diagnostics
- Congenital Anomalies and Fetal Surgery
University of Exeter
2014-2024
University of Bristol
2011-2016
University of Salford
2012-2015
Marine Biological Association of the United Kingdom
2010-2014
University of British Columbia
2013
University College Dublin
2013
Université Paris Cité
2011
Centre National de la Recherche Scientifique
2011
Génétique Quantitative et Évolution Le Moulon
2011
University of Plymouth
2011
Many sharks and skates are particularly vulnerable to overfishing because of their large size, slow growth, late maturity low fecundity. In Europe dramatic population declines have taken place in common skate ( Dipturus batis L.), one the largest demersal fish regional shelf seas, leading extirpations from substantial parts its former range. Here we report discovery cryptic species collected northeast Atlantic continental shelf. Data nuclear microsatellite markers indicated two clearly...
Microsatellite genotyping is a common DNA characterization technique in population, ecological and evolutionary genetics research. Since different alleles are sized relative to internal size-standards, laboratories must calibrate standardize allelic designations when exchanging data. This interchange of microsatellite data can often prove problematic. Here, 16 loci were calibrated standardized for the Atlantic salmon, Salmo salar, across 12 laboratories. Although inconsistencies observed,...
Many shark populations are in decline, primarily due to overexploitation. In response, conservation measures have been applied at differing scales, often severely restricting sales of declining species. Therefore, DNA barcoding was used investigate products fishmongers and fish chip takeaways England. The majority samples were identified as Spiny Dogfish (Squalus acanthias), which is critically endangered the Northeast Atlantic landings prohibited (although there evidence importation this...
Abstract Background Anadromous migratory fish species such as Atlantic salmon ( Salmo salar ) have significant economic, cultural and ecological importance, but present a complex case for management conservation due to the range of their migration. exist in rivers across North Atlantic, returning river birth with high degree accuracy; however, despite continuing efforts improvements in-river conservation, they are steep decline range. Salmon from Europe migrate along similar routes, where...
Although the spread of sushi restaurants in European Union and United States is a relatively new phenomenon, they have rapidly become among most popular food services globally. Recent studies indicate that can be associated with very high levels (>70%) fish species substitution. Based on indications seafood retail sector may currently under better control than its North American counterpart, here we investigated labelling accuracy bars across England. We used COI barcoding gene to screen...
Abstract Many sharks, skates, and rays (elasmobranchs) are highly threatened by the activities of commercial fisheries, a clear understanding their distributions, diversity, abundance can guide protective measures. However, surveying monitoring elasmobranch species be invasive or resource‐intensive, utilization non‐invasive environmental DNA‐based methods may overcome these problems. Here, we studied spatial seasonal variation in community Western English Channel using DNA (eDNA) collected...
Skates are widely consumed across the globe, but many large species subject to considerable concern regarding their conservation and management. Within Europe such issues have recently driven policy changes so that, for first time, reports of skate landings now be made under species-specific names. Total allowable catches also been established groups, which set zero a number most vulnerable (e.g., Dipturus batis, Raja undulata Rostoraja alba). Whilst accurate identification has become an...
Multiple paternity (MP) has been demonstrated in a variety of sharks, although its prevalence and the number sires per litter vary considerably among species. To date, such analyses have focused on viviparous species that possess only part wide spectrum reproductive strategies developed elasmobranchs. We analyzed MP an oviparous species, small-spotted catshark (Scyliorhinus canicula). In total, 150 neonates originating from 13 different mothers were genotyped using 12 microsatellite loci....
Elasmobranchs represent important components of marine ecosystems, but they can be vulnerable to overexploitation. This has driven investigations into the population genetic structure large-bodied pelagic sharks, relatively little is known in smaller demersal taxa, which are perhaps more representative biodiversity group. study explores spatial small-spotted catshark (Scyliorhinus canicula), across European seas. The results show significant differences among most Mediterranean sample...
Tuna fisheries and processing represent economic activities of paramount importance around the world. Most these products are traded for human consumption in general highly demanded commodities. However, not all tuna achieve same market price, some consumers willing to pay a huge amount money certain species (i.e. Japanese Bluefin tuna) while other rather affordable Skipjack tuna), therefore mislabelling has been observed frequently. We collected analysed 545 samples six European countries,...
Serra‐Pereira, B., Moura, T., Griffiths, A. M., Gordo, L. S. & Figueiredo, I. (2010). Molecular barcoding of skates (Chondrichthyes: Rajidae) from the southern Northeast Atlantic. — Zoologica Scripta , 40 76–84. Due to their vulnerability fishing pressure, many species skate (Rajidae) in Atlantic are undergoing declines abundance. The assessment stock status and subsequent proposal management measures often complicated by high levels diversity endemism, coupled with morphological...
Salmonid fishes exhibit high levels of population differentiation. In particular, the brown trout (Salmo trutta L.) demonstrates complex within river drainage genetic structure. Increasingly, these patterns can be related to underlying evolutionary models, which three scenarios (member-vagrant hypothesis, metapopulation model and panmixia) facilitate testable predictions for investigations into We analysed 1225 collected from River Dart, a 75 km long located in southwest England. Specimens...
Abstract Canids, particularly dogs, constitute the major source of cystic echinococcosis (CE) infection to humans, with majority cases being caused by Echinococcus granulosus (G1 genotype). Canine is an asymptomatic disease adult tapeworms E. sensu lato (s.l.). Information on population structure and genetic variation limited. Using sequenced data mitochondrial cytochrome c oxidase subunit 1 ( cox1 ) we examined diversity genotype) from canid definitive hosts originating various geographical...
This study focuses on temporal changes in Atlantic salmon (Salmo salar) populations from the vulnerable periphery of species range (northern Spain). Using microsatellite markers to assess population structuring and introgression exogenous genes four different samples collected across 20 years, we have determined relative weights climate stocking practices shaping contemporary regional genetic patterns. Climate, represented by North Oscillation Index, was identified as main factor for...
The growing popularity of Japanese cuisine worldwide has caused an increasing demand for freshwater eels (family Anguillidae), usually termed 'unagi' and commonly utilised in sushi donburi dishes. trade the Critically Endangered European eel (Anguilla anguilla) is now restricted this resulted illegal trade. Here, DNA barcoding was used to identify species sold processed products worldwide, including a focus on Europe North America. For first time, traditional jellied stewed from UK are also...
Abstract Populations of southern European Atlantic salmon Salmo salar are subjected to exploitation by sportfishing and exhibit evidence dramatic catch reduction for the same fishing effort over recent history. We employed nine microsatellite loci as markers estimate effective population sizes in five rivers northern Spain comparison with 1990s data describing populations; marked declines last decade were detected, a reduced census size is proposed be one probable causes. These estimates...
The skate fauna in the northern N ortheast ( NE ) A tlantic is poorly investigated, and misidentifications are common. Here, ‘ DNA barcoding’ was used to analyse 105 specimens of 15 species previously reported from area investigate occurrence species. Of these species, three were new region confirmed with voucher specimens. Three taxa not obtained study area, providing a total number 12 for Atlantic. Only one specimen critically endangered D ipturus batis complex found. It occurs frequently...