Leif Grimsmo

A remote operations center framework for heterogeneous robotic zooplankton sampling: System design and field case study

Karoline Barstein, Rabea Rogge, André Julius Hovd Olaisen, Ahmed Abdelgayed et autres

Autonomous and heterogeneous marine robotic networks offer new possibilities for observing dynamic ocean phenomena beyond the limits of ship-centered and single-platform operations. Their scientific and operational value depends on coordinated system use: remote supervision, communication across constrained links, and onboard or near-real-time …

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Exploring the Potential of Atlantic Mesopelagic Species Processed on Board Commercial Fishing Vessels as a Source of Dietary Lipids

Maria A. Madina, Eduardo Grimaldo, Leif Grimsmo, Bendik Toldnes et autres

This study investigates the use of untapped mesopelagic species as a source of long-chain polyunsaturated omega-3 fatty acids (LC n-3 PUFAs) to meet the growing demand. The challenges faced by commercial fishing vessels, such as varying catch rates and species distribution affecting …

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Does soak time influence the effect of artificial light on catch efficiency in snow crab (Chionoecetes opilio) pot fishery?

Kristine Cerbule, Bent Herrmann, Eduardo Grimaldo, Leif Grimsmo et autres

In the Barents Sea commercial snow crab (Chionoecetes opilio) fishery, an increase in catch efficiency of the conical pots is important for the profitability of the industry. Light emitting diodes (LEDs) have previously been tested for increasing catch efficiency of the snow …

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Increasing sustainability in food production by using alternative bait in snow crab (Chionoecetes opilio) fishery in the barents sea

Kristine Cerbule, Leif Grimsmo, Bent Herrmann, Eduardo Grimaldo

The use of food grade wild-captured species as bait for other fisheries questions the sustainability of food production. In pot fisheries, bait is an important factor determining the effectiveness of the gear. In snow crab ( Chionoecetes opilio ) fishery, the pots …

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Improved bycatch reduction in the mixed demersal trawl fishery for Norway pout (Trisopterus esmarkii)

Eduardo Grimaldo, Jesse Brinkhof, Bent Herrmann, Kristine Cerbule et autres

In this study, we compared the bycatch reduction capacity of a trawl fitted with a standard rigid sorting grid with that of a trawl fitted with a newly developed, flexible system called the Excluder. We conducted the fishing trials in the Norway …

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Mesopelagics–New gold rush or castle in the sky?

Kristian Fjeld, Rachel Gjelsvik Tiller, Eduardo Grimaldo, Leif Grimsmo et autres

The growing world population requires large, renewable sources of nutritional food. Fish and other marine resources are nutrient dense and rich in healthy marine omega-3 lipids (EPA and DHA) beneficial to humans and animals alike. However, only about 6% of current fisheries …

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Prediction of potential net panel selectivity in mesopelagic trawls

Eduardo Grimaldo, Bent Herrmann, Jure Brčić, Kristine Cerbule et autres

The growing interest in harvesting mesopelagic fish species has increased the need for knowledge about how trawls should be designed for optimizing the catch efficiency of these resources. Since the net herding efficiency for small mesopelagic fish species is unknown, trawls targeting …

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Increasing Sustainability in Food Production by Using Alternative Bait in Snow Crab (Chionoecetes Opilio) Fishery in the Barents Sea

Kristine Cerbule, Leif Grimsmo, Bent Herrmann, Eduardo Grimaldo

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The effect of white and green LED-lights on the catch efficiency of the Barents Sea snow crab (Chionoecetes opilio) pot fishery

Kristine Cerbule, Bent Herrmann, Eduardo Grimaldo, Leif Grimsmo et autres

In commercial snow crab (Chionoecetes opilio) fishery, the catch efficiency of the conical pots is important for increasing the profitability of the industry. This study evaluated the effect of adding green and white light emitting diodes (LED) on the catch efficiency of …

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Processing Mixed Mesopelagic Biomass from the North-East Atlantic into Aquafeed Resources; Implication for Food Safety

Marc H.G. Berntssen, Lars H. Thoresen, Sissel Albrektsen, Eduardo Grimaldo et autres

Aquaculture produces most of the world's seafood and is a valuable food source for an increasing global population. Low trophic mesopelagic biomasses have the potential to sustainably supplement aquafeed demands for increased seafood production. The present study is a theoretical whole-chain feed …

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Establishing a Method for Electrical Immobilization of Whitefish on Board Fishing Vessels

Ulf Erikson, Leif Grimsmo, Hanne Digre

A downscaled version of an electrical dry stunner used in aquaculture has been adapted for use on fishing vessels to immobilize the catch (cod, haddock and saithe) shortly after capture to facilitate immediate and easy catch handling, and to minimize downgrading due …

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Biomass density and catch composition of mesopelagic fish and invertebrates in the Northeast Atlantic

Eduardo Grimaldo, Leif Grimsmo, Paula Álvarez, Bent Herrmann et autres

During three cruises in the Mid Atlantic Ridge area in 2016 and 2017, we studied the biomass of mesopelagic fish down to a depth of 600 m and identified and quantified the species composition of the catches. The biomass density was estimated …