Stephen J. Walsh
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View article: Rethinking the taxonomy of economically valuable golden pompano (Trachinotus spp.) in China
Rethinking the taxonomy of economically valuable golden pompano (Trachinotus spp.) in China Open
Golden pompano (Trachinotus spp.), a key species in China’s mariculture industry, refers to several species, including T. ovatus, T. mookalee, T. anak, and T. blochii, although the taxonomic identity and extent of differentiation between c…
View article: Evaluating establishment success of non-native fishes introduced to inland aquatic habitats of tropical Pacific islands
Evaluating establishment success of non-native fishes introduced to inland aquatic habitats of tropical Pacific islands Open
An information-theoretic approach was used to evaluate non-native freshwater fish species introduced to insular habitats of Hawaii and Guam comparing successful establishments vs. failures. Since the late 1800s, as many as 81 non-native fr…
View article: Modelling Tourism in the Galapagos Islands: An Agent-Based Model Approach
Modelling Tourism in the Galapagos Islands: An Agent-Based Model Approach Open
Currently tourism is the main driver of change in the Galapagos Islands, affecting the social, terrestrial, and marine sub-systems. Tourism also has direct and indirect consequences for the unique archipelago’s natural habitats and for t…
View article: Contrasting Colonist and Indigenous Impacts on Amazonian Forests: Colonist versus Indigenous Deforestation
Contrasting Colonist and Indigenous Impacts on Amazonian Forests: Colonist versus Indigenous Deforestation Open
To examine differences in land use and environmental impacts between colonist and indigenous populations in the northern Ecuadorian Amazon, we combined data from household surveys and remotely sensed imagery that was collected from 778 col…
View article: Effects of box culverts on stream habitat, channel morphology, and fish and macroinvertebrate communities at selected sites in South Carolina, 2016–18
Effects of box culverts on stream habitat, channel morphology, and fish and macroinvertebrate communities at selected sites in South Carolina, 2016–18 Open
First posted April 1, 2020 For additional information, contact: Director, South Atlantic Water Science CenterU.S. Geological Survey720 Gracern RoadStephenson Center, Suite 129Columbia, SC 29210 Much attention has been placed on the role th…
View article: Indo-West Pacific species of Trachinotus with spots on their sides as adults, with description of a new species endemic to the Marquesas Islands (Teleostei: Carangidae)
Indo-West Pacific species of Trachinotus with spots on their sides as adults, with description of a new species endemic to the Marquesas Islands (Teleostei: Carangidae) Open
Diagnoses, comparisons, photographs and distribution maps are given for three previously described Indo-West Pacific species of Trachinotus that develop spots on their sides as adults. A new species, Trachinotus macrospilus, is described f…
View article: Generative Visual Dialogue System via Weighted Likelihood Estimation
Generative Visual Dialogue System via Weighted Likelihood Estimation Open
The key challenge of generative Visual Dialogue (VD) systems is to respond to human queries with informative answers in natural and contiguous conversation flow. Traditional Maximum Likelihood Estimation-based methods only learn from posit…
View article: Generative Visual Dialogue System via Adaptive Reasoning and Weighted Likelihood Estimation
Generative Visual Dialogue System via Adaptive Reasoning and Weighted Likelihood Estimation Open
The key challenge of generative Visual Dialogue (VD) systems is to respond to human queries with informative answers in natural and contiguous conversation flow. Traditional Maximum Likelihood Estimation (MLE)-based methods only learn from…
View article: Revision Of The Jawfish Genus Lonchopisthus With Description Of A New Atlantic Species (Teleostei: Opistognathidae)
Revision Of The Jawfish Genus Lonchopisthus With Description Of A New Atlantic Species (Teleostei: Opistognathidae) Open
Synonymies, diagnoses, descriptions, illustrations, an identification key, and meristic frequency tables are provided for all species of Lonchopisthus. Most of the skeletal anatomy of L. higmani is also illustrated. A new jawfish, Lonchopi…
View article: Why interventions in the seed systems of roots, tubers and bananas crops do not reach their full potential: a reflection based on literature and thirteen case studies
Why interventions in the seed systems of roots, tubers and bananas crops do not reach their full potential: a reflection based on literature and thirteen case studies Open
With RTB seed system initially not given much attention and – in very general way – in a less ‘advanced stage’, the awareness of their importance for food security, nutrition and income of rural households has caught up. In this publicatio…
View article: dMath: Distributed Linear Algebra for DL
dMath: Distributed Linear Algebra for DL Open
The paper presents a parallel math library, dMath, that demonstrates leading scaling when using intranode, internode, and hybrid-parallelism for deep learning (DL). dMath provides easy-to-use distributed primitives and a variety of domain-…
View article: Interactions of social, terrestrial, and marine sub-systems in the Galapagos Islands, Ecuador
Interactions of social, terrestrial, and marine sub-systems in the Galapagos Islands, Ecuador Open
Galapagos is often cited as an example of the conflicts that are emerging between resource conservation and economic development in island ecosystems, as the pressures associated with tourism threaten nature, including the iconic and emble…
View article: A New Genus and Species of Blind Sleeper (Teleostei: Eleotridae) from Oaxaca, Mexico: First Obligate Cave Gobiiform in the Western Hemisphere
A New Genus and Species of Blind Sleeper (Teleostei: Eleotridae) from Oaxaca, Mexico: First Obligate Cave Gobiiform in the Western Hemisphere Open
Caecieleotris morrisi, new genus and species of sleeper (family Eleotridae), is described from a submerged freshwater cave in a karst region of the northern portion of the State of Oaxaca, Mexico, Río Papaloapan drainage, Gulf of Mexico ba…
View article: Dependence of the vertical distribution of bromine monoxide in the lower troposphere on meteorological factors such as wind speed and stability
Dependence of the vertical distribution of bromine monoxide in the lower troposphere on meteorological factors such as wind speed and stability Open
Multiple axis differential absorption spectroscopy (MAX-DOAS) measurements of bromine monoxide (BrO) probed the vertical structure of halogen activation events during March–May 2012 at Barrow, Alaska. An analysis of the BrO averaging kerne…
View article: Review of Community Seed Production Practices in Africa Part 2: Lessons Learnt and Future Perspective
Review of Community Seed Production Practices in Africa Part 2: Lessons Learnt and Future Perspective Open
Within the context of the case studies presented, there are clear lessons learned and the second section of the review (Part 2) draws out those lessons in looking at seed and variety, description of community seed production, the support r…