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Fig. 2 in Sustainability of capture of fish bycatch in the prawn trawling in northeastern Brazil
Fig. 2. Classification of bycatch species according to criteria indicating susceptibility to capture and resilience. The combination of these criteria provides a graphic that indicates the species with the most sustainable catch. Legend: Pom cor - Pomadasys corvinaeformis, Cat spi - Cathrops spixii, Ste ras - Stellifer rastrifer, Pel har - Pellona harroweri, Ste ste - Stellifer stellifer, Chi ble - Chirocentrodon bleekerianus, Lar bre - Larimus breviceps, Men ame - Menticirrhus americanus, Con nob - Conodon nobilis, Pol vir - Polidactylus virginicus, Anc spi - Anchoa spinifer, Sel set - Selene setapinnis, Iso par - Isopisthus parvipinnis, Cet ede - Cetengraulius edentulus, Anc tri - Anchoa tricolor, Sel vom - Selene vomer, Bag mar - Bagre marinus.
Fig. 2 in Azhdarchid pterosaurs: water-trawling pelican mimics or "terrestrial stalkers"?
Fig. 2. Foraging great white pelicans, Pelecanus onocrotalus, with partially distended mandibles. When completely filled with water and prey, the mandibular rami of these birds are capable of considerably greater lateral expansion. Photo by DN.
Fig. 1 in Azhdarchid pterosaurs: water-trawling pelican mimics or "terrestrial stalkers"?
Fig. 1. Apex predators contemporaneous with giant azhdarchid taxa, shown to scale with a representative giant azhdarchid and a human. A. The largest known tyrannosaurid, Tyrannosaurus rex from North America, contemporary of Quetzalcoatlus northropi and other large azhdarchids. B. The Haţeg paravian Balaur bondoc, contemporary of Hatzegopteryx thambema. C. The 10 m wingspan Arambourgiania philadelphiae (note that H. thambema was proportionally more robust than Arambourgiania). D. Homo sapiens, standing height of 1.83 m.
Fig. 3 in Azhdarchid pterosaurs: water-trawling pelican mimics or "terrestrial stalkers"?
Fig. 3. Comparing mandibular bowing in pelican (A) and azhdarchids (B, C), showing areas measured for relaxed jaws (0% ext., A1, B2, C2), jaws partially extended (50% ext., A2, B3, C3), and fully extended (100% ext., B4, C4). Shaded regions denote areas measured for comparison; darker shading on azhdarchid jaws reflects regions measured for "gular alone" measurements. A. Pelecanus occidentalis skull and mandible in ventral view, modified from Meyers and Meyers (2005). B. Quetzalcoatlus sp. (TMM 42161- 2) jaw in dorsal view (B1), redrawn from Kellner and Langston (1996). C. Bakonydraco galaczi (MTMGyn/3) jaw in dorsal view (C1), after Ősi et al. (2005). Scale bars 100 mm.
Fig. 4 in Azhdarchid pterosaurs: water-trawling pelican mimics or "terrestrial stalkers"?
Fig. 4. Graphic summary of the terrestrial stalking azhdarchid hypothesis, demonstrated using the reconstructed skeleton of Zhejiangopterus linhaiensis. Skeletal reconstruction based on Cai and Wei (1994); annotations based on findings of Hwang et al. (2002); Witton and Naish (2008); Averianov (2013); and Carroll et al. (2013).
Linked collectors and determiners for: Mollusca collected by Agassiz trawl from the 2016 SO-AntEco Expedition to the South Orkney Islands, Antarctica - data.
Natural history specimen data linked to collectors and determiners held within, "Mollusca collected by Agassiz trawl from the 2016 SO-AntEco Expedition to the South Orkney Islands, Antarctica - data". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/60f0304b-2b55-41c5-b23d-b3df565a2389">https://bionomia.net/dataset/60f0304b-2b55-41c5-b23d-b3df565a2389</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/60f0304b-2b55-41c5-b23d-b3df565a2389">https://gbif.org/dataset/60f0304b-2b55-41c5-b23d-b3df565a2389</a>. Formatted as a Frictionless Data package.
Fig. 4 in Patterns In Community Structure Of Trawl Catches Along Coastal Area Of The South China Sea
Fig. 4. Cluster dendogram of abundance data for preference of 30 dominant fishes collected bimonthly (a) at different study sites and (b) in different months off Pattani and Narathiwat coasts between Nov.2005 and Jul.2007.
Fig. 3 in Patterns In Community Structure Of Trawl Catches Along Coastal Area Of The South China Sea
Fig. 3. Cluster dendogram of abundance data for each fish samples collected bimonthly (a) at four different zones and (b) in different months off Pattani and Narathiwat coasts between Nov.2005 and Jul.2000
Fig. 5 in Patterns In Community Structure Of Trawl Catches Along Coastal Area Of The South China Sea
Fig. 5. Cluster dendogram of benthic organisms' abundance data collected off Pattani and Narathiwat coasts between Nov.2005 and Jul.2007.
Cumulative and average bottom trawling fishing hours in the Mediterranean Sea for the period 2015-2022
<p>An enhanced version of the R4AIS workflow (Galdelli et al., 2021) was used to process T-AIS data, with a poll frequency of 5 min, of fishing vessels operating in the Mediterranean Sea during 8 years (2015-2022). Data of vessels categorized as bottom trawlers were aggregated to obtain cumulative (fahs) and average (mfahs) fishing hours by fishing category at 0.1° and 0.5° resolution.</p> <p>Maps of bottom trawling fishing activity were created for four main areas at 0.1° (Adriatic Sea, Aegean Sea, Balearic Sea and Levantine Sea) and at 0.5° for the Mediterranean basin.</p> <p> </p>
Data from: Stable isotopes reveal the effect of trawl fisheries on the diet of commercially exploited species
Bottom trawling can change food availability for benthivorous demersal species by (i) changing benthic prey composition through physical seabed impacts and (ii) by removing overall benthic consumer biomass increasing the net availability of benthic prey for remaining individuals. Thus trawling may both negatively and positively influence the quantity and quality of food available. Using δ13C and δ15N we investigated potential diet changes of three commercially exploited species across trawling gradients in the Kattegat (plaice, dab and Norway lobster (Nephrops)) and the Irish Sea (Nephrops). In the Kattegat, trawling affected primarily the biomass of benthic consumers, lowering competition. Nephrops showed significant positive relationships for δ13C and a domed relationship for δ15N with trawling. In the Irish Sea, intense trawling had a negative effect on benthic prey. δ13C and δ15N thus showed the inverse relationships to those observed in the Kattegat. Plaice from the Kattegat, showed a significant relationship with trawling intensity for δ13C, but not for δ15N. No relationship was found for dab. Changes of δ13C and δ15N correlated with changes in condition of species. The results show that the removal of demersal competitors and benthos by trawling can change the diets of commercial species, ultimately affecting their body condition.
Dataset for "Quantifying the physical impact of bottom trawling based on high-resolution bathymetric data"
<p>Bathymetric point cloud data and ship log data used for the article "Quantifying the physical impact of bottom trawling based on high-resolution bathymetric data" by Mischa Schönke, David Clemens and Peter Feldens (<a href="https://doi.org/10.3390/rs14122782">https://doi.org/10.3390/rs14122782</a>)</p>
Figure. Map of Turkey showing the sampling sites in the Black Sea. in Length-weight relationships of 28 fish species caught from demersal trawl survey in the Middle Black Sea, Turkey
Figure. Map of Turkey showing the sampling sites in the Black Sea.
Figure. Sampling stations (BS: beach seine, BT: beam trawl). in Length-weight relationships of forty-nine fish species from shallow waters of Gökçeada Island, northern Aegean Sea
Figure. Sampling stations (BS: beach seine, BT: beam trawl).
Figure 3 in Catch composition of trawl fisheries in Mersin Bay with emphasis on catch biodiversity
Figure 3. Monthly distribution of the catch.
Figure 4 in Catch composition of trawl fisheries in Mersin Bay with emphasis on catch biodiversity
Figure 4. Rank–abundance curves by month in terms of CPUE% (kg/h).
Figure 5 in Catch composition of trawl fisheries in Mersin Bay with emphasis on catch biodiversity
Figure 5. Rank–abundance curves by month in terms of CPUE% (N/h).
Figure 1 in Catch composition of trawl fisheries in Mersin Bay with emphasis on catch biodiversity
Figure 1. Study area.
Fig. 1 in Sustainability of capture of fish bycatch in the prawn trawling in northeastern Brazil
Fig. 1. Map of northwestern Brazil showing location of study area in São Cristóvão beach.
Data and Code for Analysis of Bottom Trawling Impact on Sedimentary Organic Carbon in the North Sea
<p>Data and Code for Analysis of Bottom Trawling Impact on Sedimentary Organic Carbon in the North Sea</p>
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
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