MPA as management tools for small-scale fisheries: The case study of Arrábida Marine Protected Area (Portugal)

2011 ◽  
Vol 54 (2) ◽  
pp. 137-147 ◽  
Author(s):  
Marisa I. Batista ◽  
Filipa Baeta ◽  
Maria J. Costa ◽  
Henrique N. Cabral
2018 ◽  
Vol 10 (6) ◽  
pp. 527-535
Author(s):  
Rigers Bakiu ◽  
Marko Cakalli ◽  
Kastriot Korro ◽  
Antonio Di Franco ◽  
Paolo Guidetti

2021 ◽  
Vol 26 (3) ◽  
pp. 136-146
Author(s):  
Selvi Tebaiy ◽  
Denny Clif Mampioper ◽  
Marjan Batto ◽  
Agnestesya Manuputty ◽  
Syafri Tuharea ◽  
...  

Seagrass plays an important role in aquatic resources, such as to support the sustainable management of small-scale fisheries, ensuring the availability of seagrass stocks for generations of local communities to cultivate in a sustainable manner. The purpose of this study is to provide information on the seagrass health status to support sustainable small-scale fisheries in the South Misool Regional Waters Conservation Areas which is located within the Raja Ampat Marine Protected Area of  West Papua. The research was conducted in January 2019 in the Yefgag, Yellu and Harapan Jaya island. A total of ten quadratic transects measuring 1x1 m were laid perpendicularly to the coastline adapted from the seagrass watch method to collect the seagrass data, i.e. the species and the frequency of seagrass found, the dominance and the percentage of seagrass cover. Additional data on fish species were collected by interviewing the local fishermen directly. The relationship between seagrass cover and the number of fish species was analyzed. Th results showed that there were eight species of seagrass found in three observation stations, i.e. Halophila ovalis, Halodule uninervis, Halodule pinifolia, Halophila minor, Syringodium isoetifolium, Cymodocea serrulata, Cymodocea rotundata and Enhalus acoroides. According to the standard criteria for the health status of seagrass beds, the three locations are classified as less rich/less healthy. It because the seagrass coverage was in the range of 30-59%. The relationship between the percentage of seagrass cover and the number of fish species resulted equation of  Y = 15,923x + 0,3174 with R2 = 0,763. It means that the percentage of seagrass cover affects the abundance of fish species by 76,3% with the remaining being influenced by other variables, such as water quality.


2017 ◽  
Vol 75 (2) ◽  
pp. 785-795 ◽  
Author(s):  
Torsten Linders ◽  
Per Nilsson ◽  
Andreas Wikström ◽  
Mattias Sköld

Abstract Bottom trawls suspend sediments by physical contact and the drag created by the gear when towed over the seafloor. Increased turbidity and redistribution of sediments may be of concern as some organisms are vulnerable to increased levels of sediment particles in the water column. This study investigates the distribution and fate of trawling-induced suspension of sediments in a coastal marine protected area (MPA). Bottom trawling is allowed in a deep trench of the MPA and regulated to weekdays with weekend closures. We use the closed period as controls to experimentally investigate sediment resuspension generated by the trawling fleet. We find that the turbidity is elevated at trawled depths and originates from small particles of silt–mud seafloor origin that remain suspended for days preventing background levels to be reached during closures. Peaks in the plumes behind trawlers reach levels critical to organisms but decays within hours. Currents in the trench are too weak to resuspend sediments; however, wind-induced resuspension events of elevated turbidity likely originating from nearby shallower areas may occur. Short-term closures and small-scale MPAs are concluded to be of limited use as management tools to reduce effects of resuspension by bottom trawling.


2021 ◽  
pp. 101852
Author(s):  
Miguel Armenta-Cisneros ◽  
Miguel Angel Ojeda-Ruiz ◽  
Elvia Aida Marín-Monroy ◽  
Alfredo Flores-Irigoyen

2011 ◽  
Vol 16 (3) ◽  
Author(s):  
Carolin I. Mondaca-Schachermayer ◽  
Jaime Aburto ◽  
Georgina Cundill ◽  
Domingo Lancellotti ◽  
Carlos Tapia ◽  
...  

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