Julia Reisser

Julia Reisser
ULUU

PhD

About

68
Publications
74,553
Reads
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7,486
Citations
Additional affiliations
March 2018 - September 2019
Australian Institute of Marine Science
Position
  • PostDoc Position
January 2015 - October 2017
The Ocean Cleanup
Position
  • Project Manager
January 2014 - November 2014
The Ocean Cleanup
Position
  • Consultant
Education
February 2011 - October 2014
February 2007 - February 2009
Universidade Federal do Rio Grande (FURG)
Field of study
  • Biological Oceanography
February 2002 - February 2007

Publications

Publications (68)
Article
Full-text available
Ocean plastic can persist in sea surface waters, eventually accumulating in remote areas of the world's oceans. Here we characterise and quantify a major ocean plastic accumulation zone formed in subtropical waters between California and Hawaii: The Great Pacific Garbage Patch (GPGP). Our model, calibrated with data from multi-vessel and aircraft s...
Article
Full-text available
Here we report concentrations of pollutants in floating plastics from the North Pacific accumulation zone (NPAC). We compared chemical concentrations in plastics of different types and sizes, assessed ocean plastic potential risks using sediment quality criteria, and discussed the implications of our findings for bioaccumulation. Our results sugges...
Article
Full-text available
Plastics in the marine environment have become a major concern because of their persistence at sea, and adverse consequences to marine life and potentially human health. Implementing mitigation strategies requires an understanding and quantification of marine plastic sources, taking spatial and temporal variability into account. Here we present a g...
Article
Full-text available
Plastic pollution is ubiquitous throughout the marine environment, yet estimates of the global abundance and weight of floating plastics have lacked data, particularly from the Southern Hemisphere and remote regions. Here we report an estimate of the total number of plastic particles and their weight floating in the world’s oceans from 24 expeditio...
Article
Full-text available
Plastics represent the vast majority of human-made debris present in the oceans. However, their characteristics, accumulation zones, and transport pathways remain poorly assessed. We characterised and estimated the concentration of marine plastics in waters around Australia using surface net tows, and inferred their potential pathways using particl...
Article
Full-text available
Millions of tons of buoyant plastic materials enter oceans annually, the majority originating from terrestrial sources and transported to oceans where oceanographic processes disperse or accumulate them. Some of these materials beach while others accumulate in convergent zones in coastal seas and the open ocean. Although accumulations associated wi...
Article
Full-text available
Mitigating plastic pollution requires strong international cooperation because significant volumes of plastic waste are transported across jurisdictions both as waste exports and drifting ocean plastics (OP). Here we estimate which nations are (1) sources for overseas OP reaching Australian waters and (2) destinations receiving OP from Australian s...
Article
Full-text available
Tracking data have led to evidence-based conservation of marine megafauna, but a disconnect remains between the many thousands of individual animals that have been tracked and the use of these data in conservation and management actions. Furthermore, the focus of most conservation efforts is within Exclusive Economic Zones despite the ability of th...
Article
Full-text available
Sustained observations are required to determine the marine plastic debris mass balance and to support effective policy for planning remedial action. However, observations currently remain scarce at the global scale. A satellite remote sensing system could make a substantial contribution to tackling this problem. Here, we make initial steps towards...
Article
Full-text available
Marine plastic pollution is a symptom of an inherently wasteful linear plastic economy, costing us more than US$ 2.2 trillion per year. Of the 6.3 billion tonnes of fossil fuel-derived plastic (FFP) waste produced to date, only 9% has been recycled; the rest being incinerated (12%) or dumped into the environment (79%). FFPs take centuries to degrad...
Article
Full-text available
Here, we report cetacean sightings made within a major oceanic accumulation zone for plastics, often referred to as the ‘Great Pacific Garbage Patch’ (GPGP). These cetacean records occurred in October 2016 and were made by sensors and trained observers aboard a Hercules C-130 aircraft surveying the GPGP at 400 m height and 140 knots speed. Four spe...
Article
Full-text available
Here, we present a proof-of-concept on remote sensing of ocean plastics using airborne shortwave infrared (SWIR) imagery. We captured red, green, and blue (RGB) and hyperspectral SWIR imagery with equipment mounted on a C-130 aircraft surveying the “Great Pacific Garbage Patch” at a height of 400 m and a speed of 140 knots. We recorded the position...
Article
Full-text available
Identifying individual sea turtles is essential for understanding population dynamics and, in turn, planning conservation efforts. Traditionally, sea turtle individuals are identified through the application of external flipper tags and/or internal Passive Integrated Transponders (PIT). However, sea turtle identification and consequently population...
Data
Dataset associated with Chen et al 2017 article published in Environmental Science and Technology. DOI: 10.1021/acs.est.7b04682
Technical Report
Full-text available
The Ocean Cleanup Aerial Expedition used visual observation teams and sensors installed on the aircraft to detect floating debris within the so-called Great Pacific Garbage Patch. This document specifically reports on the visual observations conducted during these aerial surveys in October 2016.
Conference Paper
Full-text available
An emerging environmental issue for the world's oceans is the accumulation of plastic debris on or near the ocean surface. A novel collaboration between The Ocean Cleanup foundation and Teledyne Optech-an aerial survey with the Optech CZMIL system, data processing and analysis-is expected to provide initial volume estimates for future debris collec...
Poster
We analysed sensor data collected during the first-ever aerial survey on 2 and 6 October 2016 of the so-called Great Pacific Garbage Patch (GPGP), located between California and Hawaii.
Conference Paper
Full-text available
Marine debris and particularly plastic litter represent a major threat for ecosystems, human health and the economy. Understanding the origin, transport and accumulation of floating ocean plastics is critical to assess global risks and impacts. Here we present a global dispersal model for the simulation of marine debris trajectories allowing for va...
Article
Full-text available
Most studies on buoyant microplastics in the marine environment rely on sea surface sampling. Consequently, microplastic amounts can be underestimated, as turbulence leads to vertical mixing. Models that correct for vertical mixing are based on limited data. In this study we report measurements of the depth profile of buoyant microplastics in the N...
Conference Paper
Full-text available
The impact of plastic pollution on marine ecosystems and global economy has been drawing public concern since the end of the 20th century. To mitigate this issue, The Ocean Cleanup (TOC) Foundation is developing technologies to extract, prevent, and intercept plastic debris from coastal and oceanic environments. The core technology being optimized...
Data
Supplementary methods is a separate file which contains details on the pilot study work and supplementary figures related to the manuscript.
Article
Full-text available
We examined the effect of artificial light on the near shore trajectories of turtle hatchlings dispersing from natal beaches. Green turtle (Chelonia mydas) hatchlings were tagged with miniature acoustic transmitters and their movements tracked within an underwater array of 36 acoustic receivers placed in the near shore zone. A total of 40 hatchling...
Article
Full-text available
The ubiquity of plastics in oceans worldwide raises concerns about their ecological implications. Suspended microplastics (<5 mm) can be ingested by a wide range of marine organisms and may accumulate up the food web along with associated chemicals. Additionally, plastics provide a stable substrate to a wide range of organisms and, owing to their w...
Article
Full-text available
Millimetre-sized plastics are numerically abundant and widespread across the world's ocean surface. These buoyant macroscopic particles can be mixed within the upper water column by turbulent transport. Models indicate that the largest decrease in their concentration occurs within the first few metres of water, where in situ observations are very s...
Article
Full-text available
Marine microplastics (< 5mm in length) can contain high loads of additives and adsorbed pollutants, and may be a threat to marine food webs due to their ingestion by organisms at the base of the food chain (http://www.unep.org/yearbook/). Most of our knowledge on plastic ingestion by zooplankton has been obtained through experiments assuming that p...
Preprint
Full-text available
Most of our knowledge on plastic ingestion by zooplankton comes from experiments exposing invertebrates to plastic particles smaller than their feeding apparatus. By examining millimetre-sized marine plastics using a scanning electron microscope, we putatively identified some surface textures as feeding marks produced by invertebrates grazing upon...
Preprint
Most of our knowledge on plastic ingestion by zooplankton comes from experiments exposing invertebrates to plastic particles smaller than their feeding apparatus. By examining millimetre-sized marine plastics using a scanning electron microscope, we putatively identified some surface textures as feeding marks produced by invertebrates grazing upon...
Article
Full-text available
Millimeter-sized plastics are numerically abundant and widespread across the world's ocean surface. These buoyant macroscopic particles can be mixed within the upper water column due to turbulent transport. Models indicate that the largest decrease in their concentration occurs within the first few meters of water, where subsurface observations are...
Article
Full-text available
Millimeter-sized plastics are abundant in most marine surface waters, and known to carry fouling organisms that potentially play key roles in the fate and ecological impacts of plastic pollution. In this study we used scanning electron microscopy to characterize biodiversity of organisms on the surface of 68 small floating plastics (length range =...
Article
Full-text available
https://theconversation.com/the-difficulty-of-searching-for-mh370-in-a-giant-rubbish-patch-25083
Technical Report
Full-text available
The research described in this feasibility report indicates that The Ocean Cleanup Array is a feasible and viable method to remove large amounts of plastic pollution from a major accumulation zone known as the Great Pacific Garbage Patch. Computer simulations have shown that floating barriers are suitable to capture and concentrate floating plastic...
Article
Full-text available
Understanding the connections between sea turtle populations is fundamental for their effective conservation. Brazil hosts important hawksbill feeding areas, but few studies have focused on how they connect with nesting populations in the Atlantic. Here, we (1) characterized mitochondrial DNA control region haplotypes of immature hawksbills feeding...
Article
Full-text available
Hybridization between hawksbill (Eretmochelys imbricata) and loggerhead (Caretta caretta) breeding groups is unusually common in Bahia state, Brazil. Such hybridization is possible because hawksbill and loggerhead nesting activities overlap temporally and spatially along the coast of this state. Nevertheless, the destinations of their offspring are...
Preprint
Full-text available
Hybridization between hawksbill ( Eretmochelys imbricata ) and loggerhead ( Caretta caretta ) breeding groups is unusually common in Bahia state, Brazil. Such hybridization is possible because hawksbill and loggerhead nesting activities overlap temporally and spatially along the coast of this state. Nevertheless, the destinations of their offspring...
Preprint
Hybridization between hawksbill ( Eretmochelys imbricata ) and loggerhead ( Caretta caretta ) breeding groups is unusually common in Bahia state, Brazil. Such hybridization is possible because hawksbill and loggerhead nesting activities overlap temporally and spatially along the coast of this state. Nevertheless, the destinations of their offspring...
Article
Full-text available
Each square kilometre of Australian sea surface water is contaminated by around 4,000 pieces of tiny plastics, according to our study published today in journal PLOS ONE and data repository Figshare. These small plastic fragments, mostly less than 5mm across, are loaded with pollutants that can negatively affect several marine species, from tiny fi...
Data
This fileset contains photos (.jpg) of hawksbill turtle flippers upon capture, and subsequent underwater observations. It is intended to aid in the development of softwares for sea turtle photo-id.
Article
Full-text available
Feeding ecology of green turtles was investigated between January 2005 and april 2008 at Arvoredo Reserve, Brazil (27°17′S, 48°18′W). Data were obtained through the performance of observational sessions, geo-referenced counts, benthic surveys, capture and recapture of individuals, and oesophageal lavages. This protected area was identified as an im...
Article
Full-text available
Genetic structure and natal origins of green turtle mixed stocks in southern Brazil were assessed based on analyses of mtDNA control region sequences from the Arvoredo Island (n = 115) and Cassino Beach (n = 101) feeding areas. These were compared to other mixed aggregations to examine structuring, and to Atlantic Ocean nesting colonies to evaluate...