Results 91 to 100 of about 41,058 (312)

Using Stock Vulnerability to Evaluate Fishery‐Independent Survey Coverage and Inform Sampling Priorities

Fish and Fisheries, EarlyView.
ABSTRACT The consequences of mis‐managing vulnerable stocks (i.e., those with low productivity and high susceptibility to depletion) are high and potentially permanent. To support sustainable fisheries management, stock assessments can be improved by increasing the quantity and quality of fishery‐independent survey (i.e., survey) data.
Derek G. Bolser, Lewis Barnett, Jason Cope   +2 more
wiley   +1 more source

Quantification and mitigation of bottom-trawling impacts on sedimentary organic carbon stocks in the North Sea [PDF]

Biogeosciences
The depletion of sedimentary organic carbon stocks by the use of bottom-contacting fishing gear and the potential climate impacts resulting from remineralization of the organic carbon to CO2 have recently been heavily debated.
L. Porz, W. Zhang, N. Christiansen, J. Kossack, U. Daewel, C. Schrum, C. Schrum   +6 more
doaj   +1 more source

Our shifting perspectives on the oceans [PDF]

, 2003
In the last 15 years new research findings have radically reshaped our understanding of human effects on ocean ecosystems. Here I describe five major shifts in perspective that reveal our impacts to be more severe and persistent than previously ...
Roberts, C.M.
core   +1 more source

Causal Models as a Scientific Framework for Next‐Generation Ecosystem and Climate‐Linked Stock Assessments

Fish and Fisheries, EarlyView.
ABSTRACT Rapid changes in marine ecosystems highlight the need to account for time‐varying productivity in stock assessments used to support fisheries management. Common approaches incorporate annual variation or regressing processes such as recruitment, natural mortality, or growth on environmental variables.
J. Champagnat, C. C. Monnahan, J. Y. Sullivan, James T. Thorson, S. K. Shotwell, L. Rogers, A. E. Punt   +6 more
wiley   +1 more source

Efficiency of the bottom trawl used for the Mediterranean International Trawl Survey (MEDITS) [PDF]

, 1999
The aim of the work presented in this paper was to assess the relative efficiency of the GOC 73 sampling trawl used for the Mediterranean international trawl survey programme (MEDITS) compared with that of a typical Italian commercial trawl. The latter was chosen because it is commonly used by fishermen in the central Adriatic, where the experiment was
Fiorentini, Loris, Dremière, Pierre-Yves, Leonori, Iole, Sala, Antonello, Palumbo, Vito   +4 more
openaire   +1 more source

A Framework to Investigate the Effects of Observation Error on Neural Network Predictions of Fish Age

Fish and Fisheries, EarlyView.
ABSTRACT Technological innovations for predicting fish age represent a paradigm shift from conventional age estimation methods used in fisheries science. Recently developed secondary methods rely on models trained on conventional age estimates, derived from subjective interpretation of growth patterns and a biological property of the fish to predict ...
Derek W. Chamberlin, Thomas E. Helser, John D. Brogan, Irina M. Benson, Jason Conner, Andrew T. Chin, Christopher M. Gburski, Mary Elizabeth Matta, Julie A. Pearce, Kali R. Stone, Todd T. TenBrink, Morgan B. Arrington   +11 more
wiley   +1 more source

The Ragfish, Icosteus aenigmaticus Lockington, 1880: A Synthesis of Historical and Recent Records From the North Pacific Ocean and the Bering Sea [PDF]

, 2001
Knowledge of the distribution and biology of the ragfish, Icosteus aenigmaticus, an aberrant deepwater perciform of the North Pacific Ocean, has increased slowly since the first description of the species in the 1880’s which was based on specimens ...
Allen , George H.
core  

Recompression Improves Release Success in Pollack (Pollachius pollachius): A Step Towards Assessing Post Release Mortality in a Recreational Fishery

Fisheries Management and Ecology, EarlyView.
ABSTRACT The recreational fishery for pollack (Pollachius pollachius) in the northeast Atlantic is impacted by the species' high sensitivity to barotrauma. When captured at depth and brought to the surface, gas expansion within the peritoneal cavity can cause a variety of injuries and hinder release.
T. Stamp, R. Mawer, R. Conlon, A. E. Hall, P. Davies, R. Nesbit, D. Uren, T. Morris, S. Sullivan, S. Thomas, B. D. Stewart, H. Rudd, K. Hyder, T. Osmond, S. Reynell, E. V. Sheehan   +15 more
wiley   +1 more source

ENVIRONMENTAL REGULATION AND GLOBALIZATION IN THE COASTAL FISHERY [PDF]

Most coastal fisheries in the U.S. and other developed economies are going through a major transition. On the one hand, new technologies such as electronic enhancement to assist trawling have led to a decline in the unit cost of fishing, making it more ...
Chakravorty, Ujjayant, Fisher, Donna K.
core   +1 more source

Unfinished Business: a Review of the Implementation of the Provisions of United Nations General Assembly Resolutions 61/105 and 64/72, Related to the Management of Bottom Fisheries in Areas Beyond National Jurisdiction [PDF]

, 2011
In 2006 the General Assembly adopted resolution 61/105, based on a compromise proposal offered by deep-sea fishing nations, which committed States and regional fisheries management organisations [RFMOs] to take specific measures to protect vulnerable ...
A. Kavanagh, B. Weeber, D.E.J. Currie, G. Roberts, J. Ardron, K. Sack, L. Speer, M. Gianni, M. Gibson, S. Fuller, S. Owen   +10 more
core