Anthropogenic Noise in the Marine Environment: Pressures, Trends and Efforts to Prevent the Irreversible- Juniper Publishers

Juniper Publishers- Open access journal of Oceanography and Fisheries

Anthropogenic Noise in the Marine Environment: Pressures, Trends and Efforts to Prevent the Irreversible

Human activities introduce noise, i.e. unwanted sound, into the marine environment either intentionally for a specific purpose (e.g., seismic surveys) or unintentionally as a by-product of their activities (e.g., shipping or construction). Anthropogenic noise can be broadly split into two main types: impulsive and continuous. The first type includes sounds from offshore construction (construction of cables and pipelines, construction of offshore wind farms, bridges and oil platforms, explosives, pile driving), sonars (naval-military sonars, echosounders - fisheries sonars), seismic survey (airgun arrays operation for oil and gas exploration) and acoustic deterrent and harassment devices. The second type includes sounds from offshore industrial activities (operation of offshore wind farms and oil platforms / dredging, drilling, wind turbines), shipping (commercial shipping, fishing boats and vessels, recreational boating and sports & charter operators, military & coast guards) and marine renewable energy devices (tidal & wave energy). The Convention on Biological Diversity [1] points out the increase of anthropogenic noise in the marine environment over the last 100 or so years due to the growing and diverse aforementioned activities (increase of commercial shipping, expansion of industrial activities including oil and gas exploration and production, commercial fishing, development of marine renewable energy and the growing number of small vessels in coastal areas).

For more articles please click on: https://juniperpublishers.com/ofoaj/OFOAJ.MS.ID.555556.php

Comments

Post a Comment

Popular posts from this blog

Bioluminescence in Fishes: Diversity and Functions- Juniper Publishers

                  Juniper Publishers -  Journal of Oceanography Introduction Bioluminescence is a amazing biological phenomen, which can be found in terrestrial and oceanic environments. Numerous bioluminescent taxa were described from the marine environment [ 1 - 2 ]. Bioluminescence is especially abundant in the deep-sea. The majority of luminescent taxa are invertebrate animals. In contrast to the high diversity in invertebrates, vertebrates lack bioluminescent light organs, with the exception of an amazing diversity in teleosts and some shark species. A recent paper reported that bioluminescence appeared in ray finned fishes in 27 independent evolutionary events [ 3 ]. Bioluminescent light is generated in spezialized light organs based on a oxyidation of a light emitting luciferine in the presence of oxygene and the enzyme luciferin [ 1 , 4 ]. Most of the bioluminescent species produce blue green light in the wavelength range around Xmax ~475nm [ 1 ]. Luminescence in fishes c
Read more

SDS-PAGE Electrophoresis of Ocypode rotundata Miers, 1882 and O. ceratophthalma Pallas, 1772 using Muscle Tissue along the Coast of Pakistan

Image
  Oceanography & Fisheries Open Access Journal Juniper Publishers Authored by Sahir Odhano Abstract Electrophoretic studies for the identification of ghost crabs (Ocypode rotundata and Ocypode ceratophthalma) using the SDS-PAGE were performed on protein patterns along the Sandspit coastal areas. The muscle tissues were used to estimate the molecular mass of proteins through SDS-PAGE electrophoresis. Electrophoretic settings were standardized to use 10% acrylamide resolving gel and 5% acrylamide stacking gel. A discontinuous buffer system was used following the protocols of Laemmli (1970) to observe the relative mobility and molecular weight of proteins. In O. rotundata total of 6 protein bands were resolved among them band-5 was found similar in size to the marker used (BSA = 66 kDa MW). Whereas in O. ceratophthalma total of 8 protein bands were resolved among them three protein bands (band-6, band-7, and band-8) were found to be higher in size than the molecular mar
Read more

Environmental Perception of Recreational Fishers in Urban Beaches

Image
  Oceanography & Fisheries Open Access Journal Juniper Publishers Authored by:  Jacqueline S Silva-Cavalcanti Abstract Recreational fishers depend on the good quality of those environments. The assessment of the environmental perception of social actors who show a sense of belonging to the landscape can better describe the impacts on the environment. This study aimed to assess the recreational fishers’ perception of the environmental quality in four urban beaches. 170 recreational fishers agreed to participate in the research. They were required to respond to questions about their fishing strategies and their perception of the environmental quality of the beaches and the possible impacts on the fishing activity. Based on the responses presented, a description of both local fishing activities made, as well as an analysis of the perception of the beaches’ environmental quality for fishers. On average, the recreational fisher ones have been working for 16.2 years. Pollu
Read more