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Journal articles on the topic 'Trawling'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Jones, Peter. "The spread of bottom trawling in the British Isles, c.1700–1860." International Journal of Maritime History 30, no. 4 (2018): 681–700. http://dx.doi.org/10.1177/0843871418804486.

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Widespread bottom trawling in British waters has traditionally been dated from the last decades of the 18th century, and its early heartland has most commonly been identified as the Torbay area of Devon. This article shows that, in fact, by the time Torbay became known as a centre for the industry, bottom trawling was already well-known and relatively widespread around much of England and Wales, as well as large parts of Eastern and Southern Ireland. Following on from an earlier contribution in this journal, it also demonstrates that bottom trawling’s unbroken history, going back to at least t

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2

Bergman, Magda J. N., and Erik H. Meesters. "First indications for reduced mortality of non-target invertebrate benthic megafauna after pulse beam trawling." ICES Journal of Marine Science 77, no. 2 (2020): 846–57. http://dx.doi.org/10.1093/icesjms/fsz250.

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Abstract Two alternative stimulation techniques to reduce mortality in benthic megafauna were tested relative to standard tickler chain beam trawling: longitudinal electrodes (pulse trawl) and longitudinal chains. Longitudinal chains caused higher mortality than pulse trawling in 3 species. Standard trawling gave higher mortality in Echinocardium cordatum than pulse trawling. Between longitudinal chain and standard trawling were no significant differences. This trend in decreasing mortality from longitudinal, to standard and then pulse trawling was confirmed by a similar decline in: i) numbers

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3

Rijnsdorp, A. D., J. G. Hiddink, P. D. van Denderen, et al. "Different bottom trawl fisheries have a differential impact on the status of the North Sea seafloor habitats." ICES Journal of Marine Science 77, no. 5 (2020): 1772–86. http://dx.doi.org/10.1093/icesjms/fsaa050.

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Abstract Fisheries using bottom trawls are the most widespread source of anthropogenic physical disturbance to seafloor habitats. To mitigate such disturbances, the development of fisheries-, conservation-, and ecosystem-based management strategies requires the assessment of the impact of bottom trawling on the state of benthic biota. We explore a quantitative and mechanistic framework to assess trawling impact. Pressure and impact indicators that provide a continuous pressure–response curve are estimated at a spatial resolution of 1 × 1 min latitude and longitude (∼2 km2) using three methods:

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4

Hinz, Hilmar, Jan G. Hiddink, James Forde, and Michel J. Kaiser. "Large-scale responses of nematode communities to chronic otter-trawl disturbance." Canadian Journal of Fisheries and Aquatic Sciences 65, no. 4 (2008): 723–32. http://dx.doi.org/10.1139/f08-002.

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Nematodes, because of their small size and short life cycles, are thought to be less affected by direct trawling mortality compared with the larger macrofauna. However, nematodes may still be indirectly affected by the physical disturbance of trawling through changing sediment characteristics and food web structure. We determined whether nematode communities on two muddy fishing grounds located in the North Sea and Irish Sea were affected by chronic otter-trawl disturbance and quantified these effects. Nematode abundance, production, and genus richness declined in response to trawling within b

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5

Mills, Craig M., Sunny E. Townsend, Simon Jennings, Paul D. Eastwood, and Carla A. Houghton. "Estimating high resolution trawl fishing effort from satellite-based vessel monitoring system data." ICES Journal of Marine Science 64, no. 2 (2006): 248–55. http://dx.doi.org/10.1093/icesjms/fsl026.

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Abstract Mills, C. M., Townsend, S. E., Jennings, S., Eastwood, P. D., and Houghton, C. A. 2007. Estimating high resolution trawl fishing effort from satellite-based vessel monitoring system data. – ICES Journal of Marine Science, 64: 248–255. High resolution estimates of trawling effort are needed to underpin studies of trawling impacts on species, habitats, and ecosystem processes, and to monitor responses to area closure and other management actions. Satellite-based vessel monitoring systems (VMS) were designed for fishery control and enforcement, but they provide potentially valuable sourc

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6

Matriadi, Faisal, Marbawi Marbawi, Chalirafi Chalirafi, and Mariyudi Mariyudi. "EFFECTIVE FISHERIES MANAGEMENT: TO REDUCE ENVIRONMENTAL DAMAGE AND SOCIAL CONFLICTS OF FISHERMEN DUE TO THE USE OF TRAWLING." International Journal of Economic, Business, Accounting, Agriculture Management and Sharia Administration (IJEBAS) 1, no. 2 (2021): 277–94. http://dx.doi.org/10.54443/ijebas.v1i2.80.

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The use of trawling as a fishing tool has long been known to have a very bad impact on the environment and creates social conflict in fishing communities. Likewise, on the North-East coast of Aceh there are still fishermen who use trawlers as fishing gear. On the other hand, the use of trawling is very damaging to the environment and causes social conflicts for fishermen. The cessation of trawling operations also has an economic and social impact on fishermen who have been using trawling for their livelihood. This study tries to explore how the impact of environmental damage and social impacts

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7

Kenchington, E. LR, J. Prena, K. D. Gilkinson, et al. "Effects of experimental otter trawling on the macrofauna of a sandy bottom ecosystem on the Grand Banks of Newfoundland." Canadian Journal of Fisheries and Aquatic Sciences 58, no. 6 (2001): 1043–57. http://dx.doi.org/10.1139/f01-053.

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A 3-year otter trawling experiment was conducted on a deepwater (120146 m) sandy bottom ecosystem on the Grand Banks of Newfoundland that had not experienced trawling for at least 12 years. The benthic macrofauna were sampled before and after trawling and in reference areas. The 200 grab samples collected contained 246 taxa, primarily polychaetes, crustaceans, echinoderms, and molluscs. Biomass was dominated by propeller clams (Cyrtodaria siliqua) and sand dollars (Echinarachnius parma), while abundance was dominated by the polychaete Prionospio steenstrupi and the mollusc Macoma calcarea. Th

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8

Tanner, Jason E. "The influence of prawn trawling on sessile benthic assemblages in Gulf St. Vincent, South Australia." Canadian Journal of Fisheries and Aquatic Sciences 60, no. 5 (2003): 517–26. http://dx.doi.org/10.1139/f03-044.

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Most experimental studies on the effects of trawling on the benthos use remote sampling techniques and are conducted in recently trawled areas. Thus it is difficult to determine the effects of trawling on previously unfished areas, and the fates of individual animals cannot be followed. In this study, I follow the fates of individuals of several sessile taxa when exposed to experimental trawling in areas that have not been trawled for some 1520 years. Although there was a significant trawling by location effect for all multivariate analyses and most individual taxa, I found that trawling had

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9

van Denderen, P. Daniël, Niels T. Hintzen, Tobias van Kooten, and Adriaan D. Rijnsdorp. "Temporal aggregation of bottom trawling and its implication for the impact on the benthic ecosystem." ICES Journal of Marine Science 72, no. 3 (2014): 952–61. http://dx.doi.org/10.1093/icesjms/fsu183.

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Abstract Understanding trawling impacts on the benthic ecosystem depends to a large extent on the ability to estimate trawling activity at the appropriate scale. Several studies have assessed trawling at fine spatial scales yearly, largely ignoring temporal patterns. In this study, we analysed these temporal patterns in beam trawl effort intensity at 90 stations of the Dutch continental shelf of the North Sea for a period of 10 years, at a fine temporal (weekly) and spatial (110 × 70 m) scale using Vessel Monitoring by Satellite (VMS) data. Our results show that trawling is aggregated in time

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10

Hanna, Jack, Seán Power, Phil O'Keeffe, and Mary Ryan. "Trawling the Past." Books Ireland, no. 194 (1996): 93. http://dx.doi.org/10.2307/20623248.

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11

Nuwer, Rachel. "Trawling for Viruses." Scientific American 313, no. 6 (2015): 34. http://dx.doi.org/10.1038/scientificamerican1215-34a.

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12

Warren, Graham. "Trawling for receptors." Nature 346, no. 6282 (1990): 318–19. http://dx.doi.org/10.1038/346318b0.

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13

Gregg, J. Marty, and Amit Kumar. "Trawling for complements." Nature 510, no. 7506 (2014): 481–82. http://dx.doi.org/10.1038/510481a.

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14

Jones, Peter. "The long ‘lost’ history of bottom trawling in England, c.1350–1650." International Journal of Maritime History 30, no. 2 (2018): 201–17. http://dx.doi.org/10.1177/0843871418766765.

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This article considers the early history of bottom trawling in England. It demonstrates that trawling – and, in particular, beam trawling – has a very long history stretching back to at least the fourteenth century. Over the following two centuries it spread from the Thames Estuary along the south and south-east coasts, and by 1600 its use was widespread and it was being pursued some distance from shore. The article also shows that bottom trawling has always been a controversial practice, and that by the early modern period it was highly unpopular, not only among non-trawling fishermen (who vi

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15

Jac, Cyrielle, Nicolas Desroy, Jean-Claude Duchêne, et al. "Assessing the impact of trawling on benthic megafauna: comparative study of video surveys vs. scientific trawling." ICES Journal of Marine Science 78, no. 5 (2021): 1636–49. http://dx.doi.org/10.1093/icesjms/fsab033.

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Abstract Most studies about benthic community use small-scale sampling methods focused on the infauna such as grabs or box-corers. The benthic data collected by scientific trawl surveys in all European waters, in the frame of the Common Fishery Policy Data Collection Multiannual Program, can be used to study the impact of large-scale fisheries such as trawling. However, the catchability of trawls is very dependent on the nature of the seabed as well as resulting ground-gear adaptations. Due to its non-destructive nature and its ability to focus on benthic macro-epifauna, towed video sampling a

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16

Duplisea, Daniel E., Simon Jennings, Karema J. Warr, and Tracy A. Dinmore. "A size-based model of the impacts of bottom trawling on benthic community structure." Canadian Journal of Fisheries and Aquatic Sciences 59, no. 11 (2002): 1785–95. http://dx.doi.org/10.1139/f02-148.

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Bottom trawling causes widespread disturbance to the sediments in shallow-shelf seas. The resultant mortality of benthic fauna is strongly size dependent. We empirically demonstrate that beam trawling frequency in the central North Sea had a greater effect on fauna size distribution in a soft sediment benthic community than variables such as sediment particle size and water depth. Accordingly, we simulated the impacts of trawling disturbance on benthos using a model consisting of 37 organism size classes between 1 μg and 140 g wet weight. The model produced a productionbiomass versus size rel

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17

Tinlin-Mackenzie, Ashleigh, Heather Sugden, Catherine L. Scott, Robert Kennedy, and Clare Fitzsimmons. "Trawling for evidence: An ecosystem-based multi-method trawling impact assessment." Fisheries Research 268 (December 2023): 106858. http://dx.doi.org/10.1016/j.fishres.2023.106858.

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18

Porz, Lucas, Wenyan Zhang, Nils Christiansen, Jan Kossack, Ute Daewel, and Corinna Schrum. "Quantification and mitigation of bottom-trawling impacts on sedimentary organic carbon stocks in the North Sea." Biogeosciences 21, no. 10 (2024): 2547–70. http://dx.doi.org/10.5194/bg-21-2547-2024.

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Abstract. 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. An issue that has remained unaddressed thus far regards the fate of organic carbon resuspended into the water column following disturbance by fishing gear. To resolve this, a 3D-coupled numerical ocean sediment macrobenthos model is used in this study to quantify the impacts of bottom trawling on organic carbon and macrobenthos stocks in North Sea sediments. Us

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19

Nguyen Huu Thanh. "Impact of trawling speed on vertical opening of trawl net by modelling method." Tạp chí Khoa học - Công nghệ Thủy Sản, Trường Đại học Nha Trang, no. 04 (December 30, 2018): 078–83. http://dx.doi.org/10.53818/jfst.04.2018.420.

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This study was conducted to find out the relations between trawling speed and vertical opening of trawl net. The study uses a trawl model to perform a test in a flume tank at various trawling speeds, from 0.46 m/s to 1.08 m/s, this is equivalent from1.5 knots to 3.5 knots in the field for full-scale net. The results show that the vertical opening of the net mouth decreases as the trawling speed increases, the vertical opening was reduced by more than 32% as the speed increased from 1.5 knots to 3.5 knots. The regression results show that there is an approximate relationship between trawling sp

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20

Paiva, Pedro Mello, Jader Lugon Junior, Luciano Gomes Fischer, Maria Manuela Fraga Juliano, Emiliano Nicolas Calderon, and Mauricio Mussi Molisani. "Sediment plume simulation from bottom-trawled fishery and deposition effects on rhodoliths and deep-water corals from Campos basin, Brazil." Revista de Gestão Costeira Integrada 23, no. 1 (2023): 43–53. http://dx.doi.org/10.5894/rgci-n501.

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Extensive rhodoliths and deep-water coral has been described along the continental shelf and slope of the Campos Basin, but such environments can be highly vulnerable to the bottom trawling fishing. This study applied the MOHID software to simulate the sediment resuspension during the bottom trawling operation and to evaluate possible impacts of sediment deposition onto rhodoliths and deep-water coral. The sediment transport model was validated by field measurements of a bottom trawling operation and presented good accuracy. The results indicated that sediment resuspension by a double-rig traw

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21

Killen, Shaun S., Julie J. H. Nati, and Cory D. Suski. "Vulnerability of individual fish to capture by trawling is influenced by capacity for anaerobic metabolism." Proceedings of the Royal Society B: Biological Sciences 282, no. 1813 (2015): 20150603. http://dx.doi.org/10.1098/rspb.2015.0603.

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The harvest of animals by humans may constitute one of the strongest evolutionary forces affecting wild populations. Vulnerability to harvest varies among individuals within species according to behavioural phenotypes, but we lack fundamental information regarding the physiological mechanisms underlying harvest-induced selection. It is unknown, for example, what physiological traits make some individual fish more susceptible to capture by commercial fisheries. Active fishing methods such as trawling pursue fish during harvest attempts, causing fish to use both aerobic steady-state swimming and

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22

Simpson, Anne W., and Les Watling. "An investigation of the cumulative impacts of shrimp trawling on mud-bottom fishing grounds in the Gulf of Maine: effects on habitat and macrofaunal community structure." ICES Journal of Marine Science 63, no. 9 (2006): 1616–30. http://dx.doi.org/10.1016/j.icesjms.2006.07.008.

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Abstract The cumulative impacts (i.e. collective, multi-year effects) of seasonal commercial shrimp trawling on habitat and macrofaunal community structure were investigated for two mud-bottom fishing grounds and adjacent untrawled areas in the Gulf of Maine. Habitat structure on mud-bottom fishing grounds did not differ significantly from that in similar untrawled areas. Moreover, sediment resuspension associated with shrimp trawling did not appear to result in net loss of deposited material on fishing grounds, but there is evidence that trawling may alter sediment mixing regimes. Visual insp

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23

De Robertis, Alex, and Christopher D. Wilson. "Walleye pollock respond to trawling vessels." ICES Journal of Marine Science 63, no. 3 (2006): 514–22. http://dx.doi.org/10.1016/j.icesjms.2005.08.014.

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Abstract The potential for fish to avoid survey vessels is a major source of uncertainty in stock-assessment surveys. Although walleye pollock (Theragra chalcogramma) are the subject of a substantial commercial fishery in the North Pacific, their behavioural responses to approaching survey vessels remain poorly understood. As a first step in an effort to determine if walleye pollock avoid survey vessels engaged in trawling operations, we made pairwise comparisons of acoustic backscatter recorded by survey vessels while free-running and while trawling. Results are presented of acoustic backscat

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24

Reichhardt, Tony. "Trawling through the wreckage." Nature 426, no. 6968 (2003): 754–55. http://dx.doi.org/10.1038/426754b.

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25

Ash, C. "MICROBIOLOGY: Trawling Hidden Waters." Science 321, no. 5892 (2008): 1021c. http://dx.doi.org/10.1126/science.321.5892.1021c.

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26

Purvis, Mark. "Trawling for pump information." World Pumps 1995, no. 348 (1995): 3. http://dx.doi.org/10.1016/s0262-1762(99)80910-9.

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27

Sheppard, Charles. "Trawling the sea bed." Marine Pollution Bulletin 52, no. 8 (2006): 831–35. http://dx.doi.org/10.1016/j.marpolbul.2006.07.002.

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28

Choudhri, Asim F., and Thomas M. Carr. "Who’s Trawling Our Waters?" Journal of the American College of Radiology 5, no. 4 (2008): 538–39. http://dx.doi.org/10.1016/j.jacr.2007.09.008.

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29

Hiddink, Jan Geert, Simon Jennings, Marija Sciberras, et al. "Global analysis of depletion and recovery of seabed biota after bottom trawling disturbance." Proceedings of the National Academy of Sciences 114, no. 31 (2017): 8301–6. http://dx.doi.org/10.1073/pnas.1618858114.

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Bottom trawling is the most widespread human activity affecting seabed habitats. Here, we collate all available data for experimental and comparative studies of trawling impacts on whole communities of seabed macroinvertebrates on sedimentary habitats and develop widely applicable methods to estimate depletion and recovery rates of biota after trawling. Depletion of biota and trawl penetration into the seabed are highly correlated. Otter trawls caused the least depletion, removing 6% of biota per pass and penetrating the seabed on average down to 2.4 cm, whereas hydraulic dredges caused the mo

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30

MÉRILLET, LAURÈNE, MAUD MOUCHET, MARIANNE ROBERT, et al. "Using underwater video to assess megabenthic community vulnerability to trawling in the Grande Vasière (Bay of Biscay)." Environmental Conservation 45, no. 2 (2017): 163–72. http://dx.doi.org/10.1017/s0376892917000480.

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SUMMARYTrawling activities are considered to be one of the main sources of disturbance to the seabed worldwide. We aimed to disentangle the dominance of environmental variations and trawling intensity in order to explain the distribution of diversity patterns over 152 sampling sites in the French trawl fishing-ground, the Grande Vasière. Using a towed underwater video device, we identified 39 taxa to the finest taxonomic level possible, which were clustered according to their vulnerability to trawling disturbance based on functional traits. Using generalized linear models, we investigated whet

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McLaverty, C., GE Dinesen, H. Gislason, ME Brooks, and OR Eigaard. "Biological traits of benthic macrofauna show sizebased differences in response to bottom trawling intensity." Marine Ecology Progress Series 671 (August 5, 2021): 1–19. http://dx.doi.org/10.3354/meps13790.

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Bottom trawling results in widespread impacts to the structure and composition of benthic communities. Although an ecosystem approach to fisheries management aims to conserve marine biodiversity and ecosystem function, there remains a lack of empirical evidence regarding the effects of trawling on benthic functional properties. Here, we examined the sensitivity of benthic macrofauna communities to trawling using their biological traits, and compared trait responses across size-categories and survey types. We collected 84 benthic soft-sediment samples by Van Veen grab (0.1 m2) in the Kattegat i

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32

Jacobsen, Lif Lund. "State entrepreneurship in New South Wales’ trawl fishery, 1914-1923." International Journal of Maritime History 32, no. 3 (2020): 636–55. http://dx.doi.org/10.1177/0843871420949092.

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In 1914, the New South Wales (NSW) Government decided to alter its fisheries policy, with the development of an offshore trawling industry supplanting support for inshore fishing as its key development objective. Accordingly, between 1915 and 1923 the NSW Government operated a commercial trawling industry designed to fish previously unexploited fish stocks on the state’s continental shelf. The State Trawling Industry (STI) was designed to meet a mix of social and economic policy goals, with the NSW Government controlling all parts of the production line from catching to selling produce. This a

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33

Stobutzki, Ilona, Peter Jones, and Margaret Miller. "A comparison of fish bycatch communities between areas open and closed to prawn trawling in an Australian tropical fishery." ICES Journal of Marine Science 60, no. 5 (2003): 951–66. http://dx.doi.org/10.1016/s1054-3139(03)00117-6.

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Abstract The bycatch fish community was compared between areas open and closed to prawn trawling in Australia's Northern Prawn Fishery to investigate the impacts of the fishery. Two regions of a large (∼6648 km2) closure were compared, with three areas in each region, one closed to trawling (Closed) and two open to trawling, one near the closure (Near) and one farther from the closure (Far). Sampling was undertaken both day and night. The two regions and two times were analysed separately using both multivariate and univariate analyses to examine changes in overall community structure and diff

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34

McConnaughey, Robert A., and Stephen E. Syrjala. "Short-term effects of bottom trawling and a storm event on soft-bottom benthos in the eastern Bering Sea." ICES Journal of Marine Science 71, no. 9 (2014): 2469–83. http://dx.doi.org/10.1093/icesjms/fsu054.

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Abstract A Before–After Control–Impact (BACI) experiment was conducted to investigate the effects of a commercial bottom trawl on benthic invertebrates in a sandy and previously untrawled area of the eastern Bering Sea. Six pairs of experimental and control corridors were sampled with a research trawl before and after four consecutive tows with the commercial otter trawl. A major storm event occurred during the experiment, and it was possible to differentiate its effect from that of the trawling using the BACI model. Species composition changed very little; Asterias amurensis and Paralithodes

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Johnson, Andrew Frederick, Giulia Gorelli, Stuart Rees Jenkins, Jan Geert Hiddink, and Hilmar Hinz. "Effects of bottom trawling on fish foraging and feeding." Proceedings of the Royal Society B: Biological Sciences 282, no. 1799 (2015): 20142336. http://dx.doi.org/10.1098/rspb.2014.2336.

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The effects of bottom trawling on benthic invertebrates include reductions of biomass, diversity and body size. These changes may negatively affect prey availability for demersal fishes, potentially leading to reduced food intake, body condition and yield of fishes in chronically trawled areas. Here, the effect of trawling on the prey availability and diet of two commercially important flatfish species, plaice ( Pleuronectes platessa ) and dab ( Limanda limanda ), was investigated over a trawling intensity gradient in the Irish Sea. Previous work in this area has shown that trawling negatively

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Moritz, C., D. Gravel, L. Savard, C. W. McKindsey, J. C. Brêthes, and P. Archambault. "No more detectable fishing effect on Northern Gulf of St Lawrence benthic invertebrates." ICES Journal of Marine Science 72, no. 8 (2015): 2457–66. http://dx.doi.org/10.1093/icesjms/fsv124.

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Abstract Trawling has been reported worldwide to alter seabed structure, and thus benthic habitats and ecosystems. Usually, a decrease in species richness and biomass is observed, and community structure is modified towards more opportunistic species. The Gulf of St Lawrence (Canada) has been intensely exploited since the 17th century, including net, longline, dredge and trawl fishing activities. Recently, the collapse of groundfish stocks induced a shift in fishing practices toward shrimp trawling, which is currently considered a sustainable fishing activity in the region. However, no long-te

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Prantoni, Alessandro Lívio, Paulo da Cunha Lana, Leonardo Sandrini-Neto, Orlei Antônio Negrello Filho, and Verônica Maria de Oliveira. "An experimental evaluation of the short-term effects of trawling on infaunal assemblages of the coast off southern Brazil." Journal of the Marine Biological Association of the United Kingdom 93, no. 2 (2012): 495–502. http://dx.doi.org/10.1017/s002531541200029x.

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Bottom trawling is a large-scale fishing activity along the Brazilian coast, but its effects on benthic infauna are still poorly known. This is the first experimental evaluation of benthic responses to bottom trawling along the Brazilian coast. We tested the effects of trawling on macroinfaunal assemblages on the inner continental shelf off Paraná (southern Brazil) by using a sampling design with adjacent trawl and control areas. We hypothesized that if trawl fishing has a negative effect then we should expect lower numbers of species and lower benthic densities after an experimental trawling.

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Chimienti, Giovanni, Lorenzo Angeletti, Lucia Rizzo, Angelo Tursi, and Francesco Mastrototaro. "ROVvstrawling approaches in the study of benthic communities: the case ofPennatula rubra(Cnidaria: Pennatulacea)." Journal of the Marine Biological Association of the United Kingdom 98, no. 8 (2018): 1859–69. http://dx.doi.org/10.1017/s0025315418000851.

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Megabenthic soft bottom communities of trawlable grounds have been studied since the first few decades of the last century, thanks to trawl fishing technologies. Despite providing an extensive amount of presence data, trawling cannot be considered reliable from a quantitative point of view, frequently giving only weak information about sessile species density, large and small-scale distribution and main habitat features. The recent development of visual technologies on remotely operated vehicles (ROVs) can give a more accurate approach for the study of mega-epibenthic communities. The present

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Mosbahi, Nawfel, Jean-Philippe Pezy, Jean-Claude Dauvin, and Lassad Neifar. "COVID-19 Pandemic Lockdown: An Excellent Opportunity to Study the Effects of Trawling Disturbance on Macrobenthic Fauna in the Shallow Waters of the Gulf of Gabès (Tunisia, Central Mediterranean Sea)." International Journal of Environmental Research and Public Health 19, no. 3 (2022): 1282. http://dx.doi.org/10.3390/ijerph19031282.

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This study describes for the first time in the central Mediterranean Sea the effects of bottom trawling on macrobenthic fauna in tidal channels of the Kneiss Islands in the Gulf of Gabès, Tunisia. Following a BACI protocol, two control stations (protected by artificial reefs) and two trawled stations (impacted stations) were sampled during a period with the absence of bottom trawling activity (the COVID-19 pandemic lockdown period from March to May 2020) and during a trawled period. Although bottom trawling had no impact on sediment composition, this anthropogenic activity reduced the concentr

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40

Laurenson, C. H., and I. G. Priede. "The diet and trophic ecology of anglerfish Lophius piscatorius at the Shetland Islands, UK." Journal of the Marine Biological Association of the United Kingdom 85, no. 2 (2005): 419–24. http://dx.doi.org/10.1017/s0025315405011355h.

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The diet of anglerfish (Lophius piscatorius), based on the analysis of stomach contents, was investigated in the Shetland Islands. Samples were obtained during trawling for sandeel (Ammodytidae species) and demersal trawling when mainly whitefish (gadoids) are targeted. This allowed the diets of samples collected from different areas and at different times to be compared. The diets in different length groups were also compared and niche breadth investigated.A wide range of prey types, mainly fish, were recorded but the main prey was Norway pout (Trisopterus esmarkii) and lesser sandeel (Ammody

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Eigaard, Ole R., Francois Bastardie, Niels T. Hintzen, et al. "The footprint of bottom trawling in European waters: distribution, intensity, and seabed integrity." ICES Journal of Marine Science 74, no. 3 (2016): 847–65. http://dx.doi.org/10.1093/icesjms/fsw194.

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Mapping trawling pressure on the benthic habitats is needed as background to support an ecosystem approach to fisheries management. The extent and intensity of bottom trawling on the European continental shelf (0–1000 m) was analysed from logbook statistics and vessel monitoring system data for 2010–2012 at a grid cell resolution of 1 × 1 min longitude and latitude. Trawling intensity profiles with seabed impact at the surface and subsurface level are presented for 14 management areas in the North-east Atlantic, Baltic Sea and Mediterranean Sea. The footprint of the management areas ranged bet

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Munga, Cosmas Nzaka, Edward Kimani, and Ann Vanreusel. "Ecological and socio-economic assessment of Kenyan coastal fisheries: the case of Malindi-Ungwana Bay artisanal fisheries versus semi-industrial bottom trawling." Afrika Focus 26, no. 2 (2013): 151–64. http://dx.doi.org/10.1163/2031356x-02602010.

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This study explores and describes the status of the fisheries resources in the Malindi-Ungwana Bay, Kenya. In addition to shrimp bottom trawling, the bay also supports a variety of artisanal fishing techniques with associated resource-use conflict experienced for quite some time until a ban on bottom trawling was imposed. This study therefore, focuses on a before and after the trawling ban effect on shrimp populations and finfish bycatch distribution and abundance, and the characterisation of artisanal finfish catches in terms of catch composition, catch-per-unit-effort, and mean trophic level

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Fleddum, A., L. J. Atkinson, J. G. Field, and P. Shin. "Changes in biological traits of macro-benthic communities subjected to different intensities of demersal trawling along the west coast of southern Africa." Journal of the Marine Biological Association of the United Kingdom 93, no. 8 (2013): 2027–38. http://dx.doi.org/10.1017/s0025315413000647.

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Biological traits analysis (BTA) is considered to be a powerful technique for describing the ecological functioning of marine benthic assemblages. This study is the first to apply BTA to assess differences in the traits of benthic faunal assemblages between areas exposed to heavy and light trawling in a major upwelling ecosystem along the west coast of southern Africa. The data were collected from two sampling locations in Namibia and six sampling locations in South Africa. The intensity of trawling varied from area to area. Significant differences in biological traits (BT) were detected betwe

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Dupaix, Amaël, Laurène Mérillet, Dorothée Kopp, Maud Mouchet, and Marianne Robert. "Using biological traits to get insights into the bentho-demersal community sensitivity to trawling in the Celtic Sea." ICES Journal of Marine Science 78, no. 3 (2021): 1063–73. http://dx.doi.org/10.1093/icesjms/fsab011.

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Abstract Coastal marine ecosystems are under many pressures, including bottom trawling, which is the most widespread human activity that directly affects seabed habitats. Therefore, it is of great importance to characterize the impacts of bottom trawling on bentho-demersal communities, which can be done through the study of indicators sensitive to trawling pressure. Using a functional indicator applied to 54 underwater video transects, we mapped the sensitivity to trawling of epibenthic invertebrates and fish communities in the Celtic Sea. We determined the relative influence of environmental

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Hiddink, J. G., S. Jennings, M. J. Kaiser, A. M. Queirós, D. E. Duplisea, and G. J. Piet. "Cumulative impacts of seabed trawl disturbance on benthic biomass, production, and species richness in different habitats." Canadian Journal of Fisheries and Aquatic Sciences 63, no. 4 (2006): 721–36. http://dx.doi.org/10.1139/f05-266.

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Bottom trawling causes widespread disturbance of sediments in shelf seas and can have a negative impact on benthic fauna. We conducted a large-scale assessment of bottom trawl fishing of benthic fauna in different habitats, using a theoretical, size-based model that included habitat features. Species richness was estimated based on a generalized body mass versus species richness relationship. The model was validated by sampling 33 stations subject to a range of trawling intensities in four shallow, soft sediment areas in the North Sea. Both the model and the field data demonstrated that trawli

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Yesson, Chris, Jess Fisher, Taylor Gorham, et al. "The impact of trawling on the epibenthic megafauna of the west Greenland shelf." ICES Journal of Marine Science 74, no. 3 (2016): 866–76. http://dx.doi.org/10.1093/icesjms/fsw206.

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Benthic habitats are important elements of polar marine environments, but can be vulnerable to anthropogenic influences such as trawling. Bottom trawling can reduce diversity and alter communities, although some habitats show resilience. The shrimp trawl fishery of West Greenland is a significant part of Greenland's economy. It operates along the west coast from the narrow rockier shelf of the south, up to deeper, muddy areas around Disko Bay. Here we use a benthic drop camera to sample 201 sites between latitudes 60–72°N and depths of 61–725m. Linear models examined relationships of taxon abu

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Sañé, E., J. Martín, P. Puig, and A. Palanques. "Organic biomarkers in deep-sea regions affected by bottom trawling: pigments, fatty acids, amino acids and carbohydrates in surface sediments from the La Fonera (Palamós) Canyon, NW Mediterranean Sea." Biogeosciences Discussions 9, no. 12 (2012): 18601–54. http://dx.doi.org/10.5194/bgd-9-18601-2012.

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Abstract. Deep-sea ecosystems are in general adapted to a limited variability of physical conditions, resulting in high vulnerability and slow recovery rates from anthropogenic perturbations such as bottom trawling. Commercial trawling is the most recurrent and pervasive of human impacts on the deep-sea floor, but studies on its consequences on the biogeochemistry of deep-sea sediments are still scarce. Pigments, fatty acids, amino acids and carbohydrates were analyzed in sediments from the flanks of the La Fonera (Palamós) submarine canyon (NW Mediterranean Sea), where a commercial bottom tra

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Sañé, E., J. Martín, P. Puig, and A. Palanques. "Organic biomarkers in deep-sea regions affected by bottom trawling: pigments, fatty acids, amino acids and carbohydrates in surface sediments from the La Fonera (Palamós) Canyon, NW Mediterranean Sea." Biogeosciences 10, no. 12 (2013): 8093–108. http://dx.doi.org/10.5194/bg-10-8093-2013.

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Abstract. Deep-sea ecosystems are in general adapted to a limited variability of physical conditions, resulting in high vulnerability and slow recovery rates from anthropogenic perturbations such as bottom trawling. Commercial trawling is the most recurrent and pervasive of human impacts on the deep-sea floor, but studies on its consequences on the biogeochemistry of deep-sea sediments are still scarce. Pigments, fatty acids, amino acids and carbohydrates were analysed in sediments from the flanks of the La Fonera (Palamós) submarine canyon (NW Mediterranean Sea), where a commercial bottom tra

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Phuong, Dang Thi, Nguyen Thanh Long, and Huynh Viet Khai. "Technical Efficiency of Fishing Activities: A Case Study of Small-Scale Trawling in the Mekong Delta, Vietnam." International Journal of Ecology 2023 (March 11, 2023): 1–9. http://dx.doi.org/10.1155/2023/9947377.

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This study estimated the technical efficiency of small-scale trawling in the Mekong Delta using a translog stochastic frontier production function model. Primary data were collected by interviewing the small-scale trawling vessels from January 2020 to May 2021 in the four coastal provinces (Soc Trang, Bac Lieu, Ca Mau, and Kien Giang) of the Mekong Delta. The results showed that the average technical efficiency of the surveyed fishermen was approximately 68.8%. Small-scale trawling vessels could increase their production by 31.2% if they operated at full technical efficiency. The captain’s fis

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Couce, Elena, Michaela Schratzberger, and Georg H. Engelhard. "Reconstructing three decades of total international trawling effort in the North Sea." Earth System Science Data 12, no. 1 (2020): 373–86. http://dx.doi.org/10.5194/essd-12-373-2020.

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Abstract. Fishing – especially trawling – is one of the most ubiquitous anthropogenic pressures on marine ecosystems worldwide, yet very few long-term, spatially explicit datasets on trawling effort exist; this greatly hampers our understanding of the medium- to long-term impact of trawling. This important gap is addressed here for the North Sea, a highly productive shelf sea which is also subject to many anthropogenic pressures. For a 31-year time span (1985–2015), we provide a gridded dataset of the spatial distribution of total international otter and beam trawling effort, with a resolution

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