Results 261 to 270 of about 490,335 (309)

Monitoring cognition in multiple sclerosis via adaptive smartphone games-first insights from a validation study. [PDF]

Front Digit Health
Pless S, Woelfle T, Lorscheider J, Wiencierz A, Reyes Ó, Luque C, Calabrese P, Granziera C, Kappos L.   +8 more
europepmc   +1 more source

The greenhouse gas emissions of the most remarkable Finnish fish product chains. [PDF]

Sci Rep
Silvenius F, Silvennoinen K, Setälä J, Keskinen T, Kankainen M, Saarni K, Niukko J, Raitaniemi J, Leinonen I.   +8 more
europepmc   +1 more source

Catches of the Javanese mini-seiners fleet : the main fishing statistics

, 1999
Ecoutin, Jean-Marc, Atmaja, B.S.
openaire   +1 more source

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Improving fishery catch statistics for Lake Victoria

Aquatic Ecosystem Health & Management, 2003
The fisheries of Lake Victoria are highly dispersed and catch statistical information is insufficient for supporting management. Catch assessment surveys for the three riparian countries were found to be weak or inadequate and a strategy for improving this source of information is proposed.
I. G. Cowx, M. van der Knaap, L. I. Muhoozi, A. Othina   +3 more
openaire   +1 more source

Using Catch Statistics to Investigate Effects of Seismic Activity on Fish Catch Rates

2012
Norway has been a petroleum nation for several decades, with most of its offshore activities originally concentrated in the North Sea. As these reserves diminish, focus is shifting to areas further north, some of which, particularly the Lofoten/Vesteralen area, are crucial for the reproduction of major fish stocks such as Gadus morhua (northeastern ...
Aud, Vold, Sven, Løkkeborg, Maria M, Tenningen   +2 more
openaire   +2 more sources

Catch statistics in the bloodworm fishery in Maine

Fisheries Research, 2009
Abstract Though they are of critical importance as tools for fisheries managers, catch statistics of small-scale artisanal fisheries are rare. The bloodworm ( Glycera dibranchiata ) fishery in Maine has lacked catch data since the 1970s, and the extent of the disturbance to the mudflats from which they are dug has never been examined.
Eben Sypitkowski, William G. Ambrose, Curtis Bohlen, Joseph Warren   +3 more
openaire   +1 more source

Statistical Catch-at-Age Methods

1992
In the last chapter, we saw how historical stock sizes and fishing mortality rates could be estimated from catch-at-age data and an assumed natural mortality rate using vpa. There are two major problems with vpa: it can give unreliable estimates for cohorts that have not completely disappeared from the fishery, and it requires an assumption about the ...
Ray Hilborn, Carl J. Walters
openaire   +1 more source

A comparison of initial statistical catch-at-age and catch-at-length assessments of Western Atlantic bluefin tuna.

2022
A concern associated with existing Atlantic bluefin tuna age-based assessments using Virtual Population Analysis (VPA) is that the catch-at-age data inputs are obtained by the cohort-slicing method, which is approximate and might introduce appreciable bias into the results.
Butterworth, Doug, Rademeyer, Rebecca A
openaire   +1 more source

A simple statistical method for catch comparison studies

Fisheries Research, 2009
For analysing catch comparison data, we propose a simple method based on Generalised Linear Mixed Models (GLMM) and use polynomial approximations to fit the proportions caught in the test codend. The method provides comparisons of fish catch at length by the two gears through a continuous curve with a realistic confidence band.
Holst, René, Revill, Andrew S
openaire   +2 more sources