A5087210060- Cephalopods and Marine Biology
- Isotope Analysis in Ecology
- Marine and fisheries research
- Marine Biology and Ecology Research
- Marine animal studies overview
- Identification and Quantification in Food
- Species Distribution and Climate Change
- Primate Behavior and Ecology
- Neurobiology and Insect Physiology Research
- Genomics and Phylogenetic Studies
- Coral and Marine Ecosystems Studies
- Chemical synthesis and alkaloids
- Neuroendocrine regulation and behavior
- Genetic diversity and population structure
- Marine Sponges and Natural Products
Ollscoil na Gaillimhe – University of Galway
2018-2023
James Cook University
2023
Marine Scotland
2023
Institute of Biological, Environmental and Rural Sciences
2021-2022
Aberystwyth University
2021-2022
Phylogenies for Octopoda have, until now, been based on morphological characters or a few genes. Here we provide the complete mitogenomes and nuclear 18S 28S ribosomal genes of twenty specimens, comprising 18 species Cirrata Incirrata, representing 13 genera all five putative families (Cirroctopodidae, Cirroteuthidae, Grimpoteuthidae, Opisthoteuthidae Stauroteuthidae) six Incirrata (Amphitretidae, Argonautidae, Bathypolypodidae, Eledonidae, Enteroctopodidae, Megaleledonidae) which were...
Bobtail and bottletail squid are small cephalopods with striking anti-predatory defensive mechanisms, bioluminescence, complex morphology; that inhabit nektobenthic pelagic environments around the world's oceans. Yet, evolution diversification of these animals remain unclear. Here, we used shallow genome sequencing thirty-two bobtail squids to estimate their evolutionary relationships divergence time. Our phylogenetic analyses show each Sepiadariidae, Sepiolidae, three subfamilies Sepiolidae...
Abstract Based on a comprehensive analysis of molecular sequence data, the Sepiidae genera Acanthosepion Rochebrune, 1884; Ascarosepion Aurosepina Jothinayagam, 1987; Decorisepia Iredale, 1926; Doratosepion Rhombosepion 1884 and Spathidosepion are here re-instated formally recognised as valid. Sepia Linnaeus, 1758 Sepiella Gray, 1849 retained, but Metasepia Hoyle, 1885 is placed in alternative combination with . The subgenus Digitosepia Lipiński, 2020 well supported herein elevated to...
Here we analyze existing quantitative data available for cephalopod brains based on classical contributions by J.Z. Young and colleagues, to cite some. We relate the relative brain size of selected regions (area and/or lobe), with behavior, life history, ecology distribution several species here considered. After hierarchical clustering identify describe ten clusters grouping 52 species. This allows us cerebrotypes, i.e., differences composition in different species, as a sign their...
Abstract Oceanic squids of the order Oegopsida are ecologically and economically important members pelagic environment. They most diverse group cephalopods, with 24 families that divergent morphologically. Despite their importance, knowledge phylogenetic relationships among oegopsids is less than neritic cephalopods. Here, we provide complete mitogenomes nuclear 18S 28S ribosomal genes for 35 selected oceanic squids, which were generated using genome skimming. We performed maximum likelihood...
Synopsis Cryptic species complexes represent an important challenge for the adequate characterization of Earth’s biodiversity. Oceanic organisms tend to have greater unrecognized cryptic biodiversity since marine realm was often considered lack hard barriers genetic exchange. Here, we tested effect several Atlantic and Mediterranean oceanic on 16 morphospecies squids orders Oegopsida Bathyteuthida using three mitochondrial one nuclear molecular marker five delimitation methods. Number...
The taxonomy of Bathypolypus and Muusoctopus has long been confounded by poor original descriptions difficulty in distinguishing among species morphologically. We aimed to use DNA barcoding conjunction with delimitation techniques morphological identification mature males identify the present North-east Atlantic provide additional information on distributions. From 298 specimens collected during biannual Deepwater Timeseries cruises other aligned surveys undertaken Marine Scotland onboard...
Many descriptions of paralarval and juvenile cephalopods are poor. By using DNA barcoding, a global bioidentification system for animals, along with morphological investigation, we can confirm species identifications. We have better chance eliminating misidentifications and, therefore, documenting the correct abundance distribution within an area by combining molecular evidence. The central objectives this study to: (1) compare vs identification (2) determine occurrence deep scattering layer...
Abstract Cephalopod beaks are essential for prey acquisition and fragmentation during feeding. Thus, it is expected that ecological pressures affect cephalopod beak shape. From a practical perspective, these structures also used to identify gut contents of marine megafauna, such as toothed whales, sharks, seabirds, large pelagic fishes. Here, we investigated the relative importance phylogenetic relatedness in evolution shape using wide range Mediterranean species. Phylogenetic analyses based...
Abstract In total, 90 gelatinous spheres, averaging one meter in diameter, have been recorded from ~ 1985 to 2019 the NE Atlantic Ocean, including Mediterranean Sea, using citizen science. More than 50% had a dark streak through center. They were surface 60–70 m depth, mainly neutrally buoyant, temperatures between 8 and 24°C. Lack of tissue samples has until now, prohibited confirmation species. However, scuba divers secured four Norwegian coast. present study, DNA analysis COI confirms...
A total of 27 large, gelatinous spherical masses observed in coastal Norwegian waters from Nordland to Aust-Agder Counties Norway, and off Lysekil Sweden, Muljica Island Croatia, Gulf Naples Italy, Reqqa Point Malta, Saint Mandrier France, during the months April September 2001 2017, are reported. Individual spheres measured 0.3–2 m diameter, averaging one metre (n = 24, ±0.53 m), with all but four sighted suspension water column between 0.5 52 depth, temperatures ranging 10–21°C. About half...
Only two species of Helicocranchia — pfefferi Massy, 1907 and papillata Nesis, 1987—are currently accepted as valid. The genus is found globally in tropical subtropical regions at depths to >1000 m ( Voss 1980 ). We collected specimens the northern Gulf Mexico during DEEPEND project (Deep Pelagic Nekton Dynamics Mexico; sampling 2015–2018) from western North Atlantic Ocean different research cruises. Physical examination differences recognized external pigmentation morphology gladius...