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10 results for “Trawl bycatch”
Fig. 3 in Sustainability of capture of fish bycatch in the prawn trawling in northeastern Brazil
Fig. 3. Correspondence analysis showing the correlation among species and criteria used to evaluate the susceptibility and resilience. 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, Rep - reproductive.
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. 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.
Figure 4 in Mollusk bycatch in trawl fisheries targeting the Atlantic seabob shrimp Xiphopenaeus kroyeri on the coast of Sergipe, northeastern Brazil
Figure 4. Cephalopoda bycatch of trawl fisheries targeting Xiphopenaeus kroyeri on coast of Sergipe: (A) Callistoctopus macropus, (B) Lolliguncula brevis. Scale bars:1 cm.
Figure 2 in Mollusk bycatch in trawl fisheries targeting the Atlantic seabob shrimp Xiphopenaeus kroyeri on the coast of Sergipe, northeastern Brazil
Figure 2. Gastropoda bycatch of trawl fisheries targeting Xiphopenaeus kroyeri on coast of Sergipe: (A) Architectonica nobilis, (B) Bulla striata, (C) Crepidula plana, (D) Crepidula protea, (E) Cancellaria reticulata, (F) Tonna galea, (G) Columbella mercatoria, (H) Erosaria acicularis, (I) Macrocypraea zebra, (J) Charonia variegate, (K) Siratus sp., (L) Phyllonotus oculatus, (M) Siratus senegalensis, (N) Stramonita brasiliensis, (O) Distorsio clathrata, (P) Terebra taurina, (Q) Lobatus gallus, (R) Vasum cassiforme, (S) Voluta ebraea, (T) Xenophora conchyliophora. Scale bars: A-E, G-H, K-O = 5 mm; F, I-J, P-Q, S-T = 10 mm.
Figure 1 in Mollusk bycatch in trawl fisheries targeting the Atlantic seabob shrimp Xiphopenaeus kroyeri on the coast of Sergipe, northeastern Brazil
Figure 1. Map of study area showing sampling stations and transects on continental shelf off state of Sergipe.
Figure 3 in Mollusk bycatch in trawl fisheries targeting the Atlantic seabob shrimp Xiphopenaeus kroyeri on the coast of Sergipe, northeastern Brazil
Figure 3. Bivalvia bycatch of trawl fisheries targeting Xiphopenaeus kroyeri on coast of Sergipe: (A) Anadara chemnitzii, (B) Acrosterigma magnum, (C) Arca zebra, (D) Chama sp., (E-F) Arcinella brasiliana, (G) Mulinia cleryana, (H) Spathochlamys benedicti, (I) Psammotella cruenta, (J) Pteria colymbus, (K) Pitar aresta, (L) Eurytellina punicea. Scale bars: A-B, E-F, I-J, L = 5 mm; C-D, G-H, K = 2 mm.
Data from: Elasmobranch bycatch in the demersal prawn trawl fishery in the Gulf of Papua, Papua New Guinea
The elasmobranch bycatch of the Gulf of Papua Prawn Fishery is investigated in detail for the first time. Fisheries observers collected data on the elasmobranch bycatch from a total of 403 trawl sets (1,273 hrs) in the Gulf of Papua. A total of 40 species of elasmobranchs were recorded ranging in size from a 12 cm disc width stingray to a 350 cm total length sawfish. High mortality rates were recorded (>80%), attributed to the long trawl durations (up to 4 hours). The future inclusion of bycatch reduction devices would likely reduce the number of larger elasmobranchs being caught and is being investigation by the PNG National Fisheries Authority. Differences in catch compositions were detected across the management zones as well as between the two monsoonal seasons (SE Monsoon and NW Monsoon). Increased monitoring and additional research is required and management plans should address the elasmobranch bycatch and in particular their high mortality rate.
Figure 1 in Bycatch of Asteroidea from shrimp trawl fishery in the southwestern Atlantic Ocean - Brazil
Figure 1. Map of the study area of Marine Protected of the Santana Archipelago, Macaé (RJ).
Data from: Elasmobranch bycatch in the demersal prawn trawl fishery in the Gulf of Papua, Papua New Guinea
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