ORCID Profile
0000-0002-5161-6767
Current Organisations
CIMA Research Foundation
,
Lapland University of Applied Sciences
,
LUT School of Business and Management
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Publications
Predicting summer fin whale distribution in the Pelagos Sanctuary (north‐western Mediterranean Sea) to identify dynamic whale–vessel collision risk areas
Publisher: Wiley
Date: 02-06-2021
DOI: 10.1002/AQC.3614
Abstract: Mediterranean fin whales aggregating in the Pelagos Sanctuary in summer to feed are exposed to vessel collision risk, particularly from high‐speed ferries. This study developed models to predict summer fin whale distribution using a generalized additive model (GAM) and MaxEnt, with the aim of providing a tool to identify potential high whale–ferry collision risk areas along ferry routes within the Pelagos Sanctuary during summertime. Models were trained using sightings data collected in the summer months of 2009–2018 on board ferries crossing the central area of the Pelagos Sanctuary. Environmental predictors were bathymetry and mean sea surface chlorophyll concentration of the annual spring bloom period. The predictive ability of GAM and MaxEnt was assessed using existing knowledge of summer fin whale distribution in the region. GAM (deviance explained = 20.2%) predictions matched documented distributions more closely than that of MaxEnt, with highest predicted fin whale occurrence in deep offshore waters ( m) encompassing the central north‐western and western regions, and in the south‐eastern region, consistent with known fin whale habitats within the Pelagos Sanctuary. Inter‐annual variability was evident, influencing collision risk areas. Collision risk was estimated as a function of the overlap between the predicted probability of fin whale occurrence and ferry density estimated from Automated Identification System data. Ferry routes that cross the northern and eastern regions of the Pelagos Sanctuary presented relatively higher collision risk. Areas with changes in risk intensity between the years were temporally and spatially dynamic: some appeared intermittently throughout the study period while others persisted over consecutive years or recurred in different years. Due to the vastness of the Pelagos Sanctuary, vessel speed reduction maybe a more practical measure to manage collision risk than re‐routing shipping lanes. A combination of Seasonal Management Areas and Dynamic Management Areas approaches could be adopted for high‐risk areas.
Biogeography in the deep: Hierarchical population genomic structure of two beaked whale species
Publisher: Elsevier BV
Date: 12-2022
Creating Loyalty Towards Magazine Websites
Publisher: IGI Global
Date: 2014
Abstract: For years, magazine publishers have been developing their online presence, pursuing a range of different goals and strategies for their websites. One of the key questions in creating online presence is whether to allocate resources on developing the offline print brand and expect brand equity transfer to the online environment or to allocate resources on developing the online brand for new audience. In this paper the authors propose an application of double jeopardy approach for assessing this issue. Finnish secondary data is used to test two competing research hypotheses. The analysis reveals that the magazine publishers who have been able to build market share in online environment seem to have more loyal customer-base in their websites. Market share of printed magazine does not predict loyalty towards magazine websites.
Speciation in the deep: Genomics and morphology reveal a new species of beaked whale Mesoplodon eueu
Publisher: The Royal Society
Date: 27-10-2021
Abstract: The deep sea has been described as the last major ecological frontier, as much of its bio ersity is yet to be discovered and described. Beaked whales (ziphiids) are among the most visible inhabitants of the deep sea, due to their large size and worldwide distribution, and their taxonomic ersity and much about their natural history remain poorly understood. We combine genomic and morphometric analyses to reveal a new Southern Hemisphere ziphiid species, Ramari's beaked whale, Mesoplodon eueu , whose name is linked to the Indigenous peoples of the lands from which the species holotype and paratypes were recovered. Mitogenome and ddRAD-derived phylogenies demonstrate reciprocally monophyletic ergence between M. eueu and True's beaked whale ( M. mirus ) from the North Atlantic, with which it was previously subsumed. Morphometric analyses of skulls also distinguish the two species. A time-calibrated mitogenome phylogeny and analysis of two nuclear genomes indicate ergence began circa 2 million years ago (Ma), with geneflow ceasing 0.35–0.55 Ma. This is an ex le of how deep sea bio ersity can be unravelled through increasing international collaboration and genome sequencing of archival specimens. Our consultation and involvement with Indigenous peoples offers a model for broadening the cultural scope of the scientific naming process.
Reduction of Species Identification Errors in Surveys of Marine Wildlife Abundance Utilising Unoccupied Aerial Vehicles (UAVs)
Publisher: MDPI AG
Date: 22-08-2022
DOI: 10.3390/RS14164118
Abstract: The advent of unoccupied aerial vehicles (UAVs) has enhanced our capacity to survey wildlife abundance, yet new protocols are still required for collecting, processing, and analysing image-type observations. This paper presents a methodological approach to produce informative priors on species misidentification probabilities based on independent experiments. We performed focal follows of known dolphin species and distributed our imagery amongst 13 trained observers. Then, we investigated the effects of reviewer-related variables and image attributes on the accuracy of species identification and level of certainty in observations. In addition, we assessed the number of reviewers required to produce reliable identification using an agreement-based framework compared with the majority rule approach. Among-reviewer variation was an important predictor of identification accuracy, regardless of previous experience. Image resolution and sea state exhibited the most pronounced effects on the proportion of correct identifications and the reviewers’ mean level of confidence. Agreement-based identification resulted in substantial data losses but retained a broader range of image resolutions and sea states than the majority rule approach and produced considerably higher accuracy. Our findings suggest a strong dependency on reviewer-related variables and image attributes, which, unless considered, may compromise identification accuracy and produce unreliable estimators of abundance.
Related Organisations
Related Funding Activities
No related grants have been discovered for Massimiliano Rosso.