scholarly journals First records of the megamouth shark Megachasma pelagios (Taylor, Compagno & Struhsaker, 1983) as bycatch in Peruvian small-scale net fisheries

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Nicolas Acuña-Perales ◽  
Francisco Córdova-Zavaleta ◽  
Joanna Alfaro-Shigueto ◽  
Jeffrey C. Mangel
Keyword(s):  
Small Scale ◽  
Species Occurrence ◽  
Small Scale Fisheries ◽  
Monitoring Programs ◽  
Fisheries Bycatch ◽  
Northern Peru ◽  
Megamouth Shark ◽  
Fishery Interactions ◽  
Scale Surface

AbstractBetween October 2018 and October 2019, seven megamouth sharks were reported as bycatch in the small-scale surface and midwater gillnet fisheries operating from the ports of Mancora and Salaverry in northern Peru. Here we present details of these specimens and bycatch events that represent the first documented records of this species in Peruvian waters, confirming their occurrence as fisheries bycatch. We recommend continued monitoring programs in small-scale fisheries toward assessing the extent of this species’ occurrence in Peru and its vulnerability to fishery interactions.

scholarly journals Using pingers to reduce bycatch of small cetaceans in Peru's small-scale driftnet fishery

Oryx ◽  
2013 ◽  
Vol 47 (4) ◽  
pp. 595-606 ◽  
Author(s):  
Jeffrey C. Mangel ◽  
Joanna Alfaro-Shigueto ◽  
Matthew J. Witt ◽  
David J. Hodgson ◽  
Brendan J. Godley
Keyword(s):  
Large Scale ◽  
Small Scale ◽  
Marine Fauna ◽  
Incidental Capture ◽  
Small Scale Fisheries ◽  
Control Sets ◽  
Northern Peru ◽  
Catch Rates

AbstractThere is growing awareness that small-scale fisheries may have large impacts on threatened marine fauna. Bycatch of small cetaceans by the Peruvian small-scale driftnet fleet results in the deaths of thousands of animals annually. We sought to assess the effectiveness of acoustic alarms (pingers) for reducing the incidental capture of dolphins and porpoises by this fleet. Forty-three experimental trips (156 fishing sets) and 47 control trips (195 fishing sets) out of Salaverry Port, northern Peru, were observed from April 2009 to August 2011. Twenty-two percent of control sets captured small cetaceans (67 individuals) and 16% of experimental sets had captures of small cetaceans (33 individuals). The bycatch rate of experimental sets was 0.50 individuals km−2h−1, whereas for control sets the rate was 0.80 individuals km−2h−1. This 37% reduction in bycatch rate suggests that pingers may be effective in reducing the bycatch of small cetaceans in this fishery. Catch rates of the fishery's target shark and ray species were unchanged. Given the vast size of this fishery and its current levels of bycatch of small cetaceans (> 10,000 individuals annually), even the modest declines in bycatch we observed could result in reductions in mortality of hundreds or thousands of small cetaceans per annum. Challenges, including increased costs, to large-scale utilization of pingers have yet to be overcome. The harpooning of dolphins for use as bait will also need to be addressed for further reductions in dolphin and porpoise bycatch and mortality to be achievable.

scholarly journals Small-Scale Fisheries Bycatch Jeopardizes Endangered Pacific Loggerhead Turtles

PLoS ONE ◽  
2007 ◽  
Vol 2 (10) ◽  
pp. e1041 ◽  
Author(s):  
S. Hoyt Peckham ◽  
David Maldonado Diaz ◽  
Andreas Walli ◽  
Georgita Ruiz ◽  
Larry B. Crowder ◽  
...  
Keyword(s):  
Small Scale ◽  
Small Scale Fisheries ◽  
Loggerhead Turtles ◽  
Fisheries Bycatch

scholarly journals DNA barcoding reveals overlooked shark and bony fish species in landing reports of small-scale fisheries from northern Peru

2021 ◽  
Vol 35 (2) ◽  
Author(s):  
Alan Marín ◽  
Renato Gozzer Wuest ◽  
Jorge Grillo-Nuñez ◽  
Irina Alvarez-Jaque ◽  
Juan Carlos Riveros
Keyword(s):  
Dna Barcoding ◽  
Fishery Management ◽  
Stock Assessment ◽  
Species Level ◽  
Bony Fish ◽  
Small Scale ◽  
Shark Species ◽  
Species Determination ◽  
Small Scale Fisheries ◽  
Northern Peru

Species-level identification of commercially landed fish provides pivotal information for stock assessment and fishery management. However, there is a common lack of species determination in landing records from small-scale fisheries (SSFs) worldwide. Using DNA barcoding analyses, we detected four overlooked bony fish (yellow snapper, union snook, blackspot wrasse, and steeplined drum) and one shark species (the sicklefin smooth-hound) in official landing records of SSFs from northern Peru. Of particular concern is the sicklefin smooth-hound shark Mustelus lunulatus that was found to be overlooked and could mistakenly be landed as the humpback smooth-hound M. whitneyi. Increased efforts should be made to improve species identification capacities in Peruvian fishing landings. There is an urgent need to quantify the catch levels of members of the genus Mustelus to species level. This would contribute to a better understanding of the levels of exploitation in each particular species and to improved management decisions.

Dysbaric osteonecrosis associated with decompression sickness in a fishing diver

2019 ◽  
pp. 217-220
Author(s):  
Eduardo Briceño-Souza ◽  
◽  
Nina Méndez-Domínguez ◽  
Ricardo j Cárdenas-Dajda ◽  
Walter Chin ◽  
...  
Keyword(s):  
Femoral Head ◽  
Decompression Sickness ◽  
Small Scale ◽  
Prior History ◽  
Radiological Findings ◽  
Small Scale Fisheries ◽  
Left Limb ◽  
History Of ◽  
Decompression Stress ◽  
Probable Diagnosis

Diving as a method of fishing is used worldwide in small-scale fisheries. However, one of the main causes of morbidity and mortality among fishermen is decompression sickness (DCS). We report the case of a 46-year-old male fisherman diver who presented with chronic inguinal pain that radiated to the lower left limb. Living and working in a fishing port in Yucatan, he had a prior history of DCS. A diagnosis of avascular necrosis in the left femoral head secondary to DCS was made via analysis of clinical and radiological findings. The necrosis was surgically resolved by a total hip arthroplasty. Dysbaric osteonecrosis is a more probable diagnosis. In this region fishermen undergo significant decompression stress in their daily fishing efforts. Further studies regarding prevalence of dysbaric osteonecrosis among small-scale fisheries divers are needed. In a community where DCS is endemic and has become an epidemic, as of late, the perception of this health risk remains low. Furthermore, training and decompression technique are lacking among the fishing communities.

scholarly journals Fisheries Sustainability through Soft Multi-Use Maritime Spatial Planning and Local Development Co-Management: Potentials and Challenges in Greece

2020 ◽  
Vol 12 (5) ◽  
pp. 2026 ◽  
Author(s):  
Stella Sofia I. Kyvelou ◽  
Dimitrios G. Ierapetritis
Keyword(s):  
Spatial Planning ◽  
Local Development ◽  
Small Scale ◽  
Artisanal Fisheries ◽  
Sustainable Livelihood ◽  
Small Scale Fisheries ◽  
Island Communities ◽  
The Mediterranean ◽  
Family Based ◽  
Maritime Spatial Planning

Small-scale fisheries in the Mediterranean represent a significant part of the fisheries industry and their substantial social, economic and place attachment related role has always been acknowledged in the region. Despite the fact that this usually family-based endeavor has a vast economic impact on coastal and island communities of the sea-basin, data and insights on the Mediterranean artisanal fisheries continue to be inadequately developed and poorly integrated in the local development strategies. Thus, the aim of this research is two-fold. Firstly, it presents some data and facts on the fisheries sector in the region and secondly it explores the options of their survival, prosperity and sustainability, approaching the combination of fisheries and tourism as a small-scale and soft “multi-use” in the marine space. Greece, with a huge potential in both the fisheries and the tourism sector, was used as focus area where a co-development process was designed aiming to identify advantages/potentials and challenges/disadvantages of the co-existence of artisanal fisheries and tourism, as perceived by a series of stakeholders including the co-management schemes (Fisheries Local Action Groups, FLAGs) in the country. Key conclusion is that sustainable livelihood from small-scale fisheries depends on the correlation between fisheries and other marine activities. Despite some limitations, this can boost sustainable local development and be a unique pattern of a “win-win” and soft multi-use marine spatial planning (MSP), with economic, environmental, social, cultural and governance related benefits for the coastal communities.

Ethical considerations for research on small‐scale fisheries and blue crimes

2021 ◽  
Author(s):  
Paula Satizábal ◽  
Philippe Le Billon ◽  
Dyhia Belhabib ◽  
Lina M. Saavedra‐Díaz ◽  
Isabela Figueroa ◽  
...  
Keyword(s):  
Small Scale ◽  
Ethical Considerations ◽  
Small Scale Fisheries

scholarly journals Assessing impacts of COVID-19 on aquatic food system and small-scale fisheries in Bangladesh

Marine Policy ◽  
2021 ◽  
Vol 126 ◽  
pp. 104422
Author(s):  
Atiqur Rahman Sunny ◽  
Sharif Ahmed Sazzad ◽  
Shamsul Haque Prodhan ◽  
Md. Ashrafuzzaman ◽  
Gopal Chandra Datta ◽  
...  
Keyword(s):  
Food System ◽  
Small Scale ◽  
Small Scale Fisheries ◽  
Aquatic Food
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