Results 71 to 80 of about 134,561 (282)

Chasing Fish: 130 Years of Innovation, Displacement and Depletion in Scottish Fisheries

open access: yesFish and Fisheries, EarlyView.
ABSTRACT Rebuilding the depleted fisheries of the 21st century requires an understanding of past drivers of their decline. Despite Scotland's central role in the commercial exploitation of North Sea fisheries for over a century, associations between technological innovations, regulatory introductions and fishery landings have not previously been ...
Zoe F. J. Heard   +2 more
wiley   +1 more source

The role of incline, performance level and gender on the gross mechanical efficiency of roller ski skating

open access: yesFrontiers in Physiology, 2013
The ability to efficiently utilize metabolic energy to produce work is a key factor for endurance performance. The present study investigated the effects of incline, performance level and gender on the gross mechanical efficiency during roller ski ...
Øyvind eSandbakk   +2 more
doaj   +1 more source

Body Condition as a Shared Response to Environment in a Commercially Important Demersal Fish Assemblage

open access: yesFish and Fisheries, EarlyView.
ABSTRACT Measures of an organism's weight at a given length are often considered reliable indicators of energy reserves or ‘condition’, which can be related to fecundity and risk of mortality. Understanding the impact of environmental change on fish condition may therefore inform sustainable management of human activities in marine ecosystems.
Philina A. English   +2 more
wiley   +1 more source

Ecosystem Impacts of the Landing Obligation for Unwanted Catch in Thermaikos Gulf (Greece)

open access: yesFisheries Management and Ecology, EarlyView.
ABSTRACT Discards by marine commercial fisheries have been an issue of major concern to the scientific community in recent years. We modeled the ecological and trophic consequences of a mandatory landing obligation (LO) regulated by the reformed Common Fisheries Policy [Regulation (EU) 1380/2013] on the Thermaikos Gulf ecosystem (northwestern Aegean ...
Ioannis Keramidas   +3 more
wiley   +1 more source

Discard Survival of Thornback Ray (Raja clavata), Undulate Ray (Raja undulata) and Small‐Eyed Ray (Raja microocellata) in Northeast Atlantic Inshore Fisheries

open access: yesFisheries Management and Ecology, EarlyView.
ABSTRACT Quantifying discard survival of species is crucial for effective fishery management. Electronic tags and visual health assessments were used to estimate postrelease survival of commercially caught thornback ray (Raja clavata), undulate ray (Raja undulata) and small‐eyed ray (Raja microocellata) from Northeast Atlantic inshore fisheries ...
Serena R. Wright   +6 more
wiley   +1 more source

Do skin suits increase average skating speed? [PDF]

open access: yes
We analyze the effectiveness of speedskating suits to increase average skating speed at the 2002 Olympic winter games of Salt Lake City. We model the average skating speed of male and female speed skaters at distances from 500 to 10000 meters.
Kuper, Gerard H., Sterken, Elmer
core   +1 more source

Authenticity in the Skateboarding World [PDF]

open access: yes, 2003
The purpose of this chapter is to illustrate the values and norms that constitute legitimacy, or authenticity, in the skateboarding world. Both authors spent a considerable amount of time with the skateboarding world in the late 1980s and early 1990s ...
Beal, Becky, Weidman, Lisa
core   +1 more source

Visual Modelling to Predict Behavioural Responses of Catsharks, Skates, and Plaice to Artificial Light for Use in Bycatch Reduction

open access: yesFisheries Management and Ecology, EarlyView.
ABSTRACT Light can be used to deter bycatch from fishing nets, but few studies have aimed to quantify how species view and respond to light. Here, we used visual models to predict how target (plaice Pleuronectes platessa) and bycatch (small‐spotted catshark Scyliorhinus canicular and undersized skates, Raja spp) species, captured in mixed demersal ...
Jasmine Somerville   +2 more
wiley   +1 more source

LoANs: Weakly Supervised Object Detection with Localizer Assessor Networks

open access: yes, 2018
Recently, deep neural networks have achieved remarkable performance on the task of object detection and recognition. The reason for this success is mainly grounded in the availability of large scale, fully annotated datasets, but the creation of such a ...
A Krizhevsky   +5 more
core   +1 more source

Evaluating and Advancing the Use of Shore‐Based Observers for Scientific Sampling and Catch Verification in High‐Volume Fisheries

open access: yesFisheries Management and Ecology, EarlyView.
ABSTRACT Shore‐based observers are increasingly being used in place of at‐sea observers to monitor and sample commercial fisheries catch. However, few evaluations assess whether these programs meet their stated goals or how to optimize them, and industry data are rarely tested for accuracy despite serving as the foundation for catch accounting. Using a
Christian Gredzens   +2 more
wiley   +1 more source

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