Relationship of population density of oceanic sea skaters collected from tropical and subtropical zones in the Pacific Ocean was examined to chlorophyll concentration/Dissolved Oxygen concentration and biomass in surf...Relationship of population density of oceanic sea skaters collected from tropical and subtropical zones in the Pacific Ocean was examined to chlorophyll concentration/Dissolved Oxygen concentration and biomass in surface sea water. The four parameters shown above were measured at the site of 12<sup>o</sup>N 135<sup>o</sup>N during the cruise, MR13-03 cruise, and at the site of 25<sup>o</sup>N 160<sup>o</sup>E during another cruise KH-14-02. Significant and positive correlation between all biomass (especially invertebrates) and population density of oceanic sea skaters collected with a Neuston-Net trailing during 15 min was shown in overall analysis on the data of the both samplings (p <sup>o</sup>N 160<sup>o</sup>E than that at 12<sup>o</sup>N 135<sup>o</sup>N with similar value of chlorophyll value (p <sup>o</sup>N 160<sup>o</sup>E than that at 12<sup>o</sup>N 135<sup>o</sup>N for keeping high density population of oceanic sea skaters.展开更多
Norwegian fjord systems provide a host of ecosystem services and are important for recreational and industrial use.The biodiversity of Norwegian fjords has been—and still is—extensively studied since they are import...Norwegian fjord systems provide a host of ecosystem services and are important for recreational and industrial use.The biodiversity of Norwegian fjords has been—and still is—extensively studied since they are important for fishing and aquaculture industries.However,threats from plastic and microplastic pollution within the fjord systems are largely undocumented.Monitoring efforts of microplastic in Norway are limited to coastal biota monitoring,offshore sediments,and some investigations within Oslofjord.Here,we quantify anthropogenic microparticles in Norwegian fjord subsurface waters,including an analysis of distribution effects.Fifty-two samples were collected during repeated transits from Bergen to Masfjorden covering 250 km.Anthropogenic particles were identified in 89%of samples,with an average abundance within the fjord estimated to be 1.9 particles m−3.This report shows the ubiquitous nature of anthropogenic particles in the subsurface waters of a Norwegian Fjord system.Additionally,methods were validated for opportunistic nondisruptive sampling on-board vessels where microplastics are seldom monitored,including research vessels,commercial freight and transport,and recreational vessels.Further development and implementation of these methods in terms of sampling,chemical characterisation,and long-term monitoring will allow for microplastic quantification and can be easily adapted for worldwide implementation.展开更多
文摘Relationship of population density of oceanic sea skaters collected from tropical and subtropical zones in the Pacific Ocean was examined to chlorophyll concentration/Dissolved Oxygen concentration and biomass in surface sea water. The four parameters shown above were measured at the site of 12<sup>o</sup>N 135<sup>o</sup>N during the cruise, MR13-03 cruise, and at the site of 25<sup>o</sup>N 160<sup>o</sup>E during another cruise KH-14-02. Significant and positive correlation between all biomass (especially invertebrates) and population density of oceanic sea skaters collected with a Neuston-Net trailing during 15 min was shown in overall analysis on the data of the both samplings (p <sup>o</sup>N 160<sup>o</sup>E than that at 12<sup>o</sup>N 135<sup>o</sup>N with similar value of chlorophyll value (p <sup>o</sup>N 160<sup>o</sup>E than that at 12<sup>o</sup>N 135<sup>o</sup>N for keeping high density population of oceanic sea skaters.
文摘Norwegian fjord systems provide a host of ecosystem services and are important for recreational and industrial use.The biodiversity of Norwegian fjords has been—and still is—extensively studied since they are important for fishing and aquaculture industries.However,threats from plastic and microplastic pollution within the fjord systems are largely undocumented.Monitoring efforts of microplastic in Norway are limited to coastal biota monitoring,offshore sediments,and some investigations within Oslofjord.Here,we quantify anthropogenic microparticles in Norwegian fjord subsurface waters,including an analysis of distribution effects.Fifty-two samples were collected during repeated transits from Bergen to Masfjorden covering 250 km.Anthropogenic particles were identified in 89%of samples,with an average abundance within the fjord estimated to be 1.9 particles m−3.This report shows the ubiquitous nature of anthropogenic particles in the subsurface waters of a Norwegian Fjord system.Additionally,methods were validated for opportunistic nondisruptive sampling on-board vessels where microplastics are seldom monitored,including research vessels,commercial freight and transport,and recreational vessels.Further development and implementation of these methods in terms of sampling,chemical characterisation,and long-term monitoring will allow for microplastic quantification and can be easily adapted for worldwide implementation.
