Showing papers in "Fisheries Research in 2018"

TL;DR: A primer on e DNA analysis as it pertains to fisheries ecology and conservation is provided and the major advances that have transformed eDNA analysis into an application-ready tool that can assist fisheries professionals in achieving research and conservation goals are highlighted.

TL;DR: JABBA is applied to the 2017 assessment input data for South Atlantic swordfish, and it is envisioned that JABBA will become a widely used, open-source stock assessment tool, readily improved and modified by the global scientific community.

TL;DR: In this paper, the impact of gear characteristics, fish characteristics and context variables on the external injuries and mortality of commercial capture fisheries is discussed. But the authors focus on trawls and hooks rather than on purse seines, gillnets, traps and seines.

TL;DR: In this article, the authors used the Sea Around Us reconstructed global catch database that accounts for reported and unreported fisheries catches, and associated all catches to a fishing gear category, and assigned all industrial (i.e., large-scale) fisheries catches to industrial gear categories by fishing country, taxon, year and the area of fishing.

TL;DR: The first real-time genetic management program for managing a mixed-stock fishery of a non-salmonid and commercially significant marine fish, the Atlantic cod (Gadus morhua L), was described in this article.

TL;DR: In this article, the size selection of krill in a commercially applied codend during experimental fishing was quantified, and it was shown that the trawl body contributes significantly to the total size selection process, demonstrating that size selectivity of Antarctic krill is affected by both the traw body and the codend.

TL;DR: In this article, the authors assessed fish diversity and abundance from remotely operated vehicle (ROV) video recordings that were collected by industry during the day and at night in the course of a subsea pipeline survey, at 130m depth.

TL;DR: The blue jack mackerel, Trachurus picturatus, is an economically important fishery resource of the NE Atlantic, commonly captured around the Macaronesian islands of Azores, Madeira and Canaries, but also along coastal Portugal mainland as discussed by the authors.

TL;DR: In this paper, DNA barcoding was used to track potential crimes against the landing and trade of endangered species along the Sao Paulo coastline, in particular Squatina guggenheim (n = 75) and S. occulta (n= 5), as well as the Brazilian guitarfish Pseudobatos horkelii.

TL;DR: In this paper, the status and trends of coastal cephalopods in China Seas and explore their responses to environmental variability are reviewed and the impacts of environmental changes on Chinese coastal ceps in the overexploited ecosystems of the China Seas are explored.

TL;DR: In this paper, a stepwise approach based on the combined analysis of questionnaire-derived vessel-specific landings and the spatial activity of the vessels with respect to a set of fishing grounds is proposed to estimate the monthly landings of Italian trawlers operating in the Adriatic Sea at a higher spatial resolution than the GSA.

TL;DR: In this paper, ultraviolet LED lamps were mounted on fixed nets and assessed for their ability to reduce the loggerhead turtle bycatch in the Mediterranean set net fishery, where no turtles were caught in the illuminated net, whereas 16 individuals were captured by the traditional net (mortality rate, 30%).

TL;DR: In this paper, the authors explore the use of acoustic telemetry to characterize the spatial ecology of Atlantic tarpon (Megalops atlanticus), elucidate the ecology of this poorly studied species, and ultimately inform conservation and management.

TL;DR: The Keepemwet Fishing (KWF) movement as discussed by the authors has emerged as a nonpartisan movement to provide simple, clear, and accurate catch-and-release (C&R) guidelines that transcend species and subcultures within the recreational angling community.

TL;DR: In this article, the authors investigated the effect of mounting green LEDs on the lower part of a Nordmore grid, to determine if their presence would encourage bycatch fish to rise towards the escape outlet prior to contacting the grid.

TL;DR: In this paper, the authors analyzed long-term catch data (1949-2013) from a salmon fishery in northern Spain, and examined its relationship with local and global indicators of temperature and hydrological change.

TL;DR: A novel and robust biometric-based approach was proposed to identify fish species with promising results and has been tested against different real challenges such as image rotation and image translation.

TL;DR: In this article, a small-scale fishing community which primarily exploits fish in Tijucas Bay (Santa Catarina State, Brazil) was investigated through face-to-face individual interviews with 34 fishers to identify changes in the current and past catches based on fishers perceptions.

TL;DR: In this paper, the authors examined the catch distribution on three spatial-temporal scales and identified fishing hotspots (FHs) that concentrated 48%-57% of the total catch over a period of 2-6 months and had high catch densities.

TL;DR: The first regional checklist of rhinopristoids is provided, showing evidence of significant declines in landings combined with increasing fishing effort over a short time period raises concern about the status and long-term persistence of many species.

TL;DR: In this paper, the authors provided the first comprehensive analysis of Marine Recreational Fishing (MRF) in Galicia including the economic, social, and ecological impacts, from a survey of 363 recreational fishers.

TL;DR: In this paper, the authors used an 8-year dataset from the Patagonian toothfish (Dissostichus eleginoides) longline fisheries operating in Crozet and Kerguelen Economic Exclusive Zones (EEZs) (South Indian Ocean) and GLMMs to investigate sperm whale (Physeter macrocephalus) depredation.

TL;DR: It is suggested that electrofishing sufficiently well represents the typical fish assemblage of large rivers despite its restriction to the shoreline and is an appropriate method to assess and evaluate the effects of hydromorphological degradation and rehabilitation on fish, and to guide river management.

TL;DR: In this paper, the authors investigated the impact of migration barriers on downstream migrating European eel (Anguilla anguilla L.) by tracking 50 acoustically tagged eels between July 2012 and March 2015 in a Belgian polder area.

TL;DR: Evaluating the factors that influence C&R outcomes in wild steelhead in a recreational fishery suggests that steelhead anglers should limit air exposure to less than 10 s, and that angler should be cautious (minimize handling and air exposure) when water temperatures are warmer.

TL;DR: The authors used survey questionnaires to assess the impact of small-scale gillnet fisheries on sea turtles across 3 nations (Ecuador, Peru and Chile), designed to fill data gaps and identify priority areas for future conservation work.

TL;DR: In this paper, an integrated habitat suitability index (HSI) model was constructed to examine the suitability of S. japonicus in the East China Sea, and evaluate the relationship with the El Nino and La Nina events, with three crucial environmental variables (sea surface temperature (SST), sea surface height (SSH), and net primary production (NPP)) as predictors.

TL;DR: The number of fishing trips per angler is strongly affected by the angler’s previous salmon catch in the Teno river area, which underlines the importance of the proper and sustainable management of recreational salmon fisheries.

TL;DR: In this article, the authors examined long-term social trends in recreational fishing and found that the number of individual anglers and angling visits on fishing grounds have been increasing and frequency of angling guard controls has been increasing.

TL;DR: In this article, the authors harnessed tri-axial accelerometer biologgers around the trunk of fish that had been captured and released by recreational anglers, allowing them to monitor post-release survival and behaviour, including surfacing, which is essential for this air-breathing fish to recover from exhaustion.