1
|
Charry MP, Keesing V, Gaw S, Costello MJ, Champeau O, Tremblay LA. Assessing the Efficacy of a Sediment Remediation Program Using Benthic and Pelagic Copepod Bioassays. Environ Toxicol Chem 2020; 39:492-499. [PMID: 31692086 DOI: 10.1002/etc.4632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 04/16/2019] [Accepted: 10/29/2019] [Indexed: 06/10/2023]
Abstract
Tributyltin is an organotin chemical that has been commonly used in ship antifouling paints. Despite the global total prohibition of tributyltin-based paint in 2008, tributyltin continues to be found at toxic levels in areas of high maritime traffic such as ports and harbors. A remediation program was conducted at a New Zealand port to reduce tributyltin and copper concentrations to acceptable values. The present study assessed the efficacy of the program using a combination of chemical analyses and copepod bioassays. Sediment and water samples were collected at 3 locations along a spatial gradient within the port, and concentrations of various organotin compounds and trace metal levels were measured pre- and postremediation. The toxicity of sediment and elutriate samples was estimated by benthic and pelagic copepod bioassays. Although acute toxicity in sediment samples was reduced following remediation, reproductive success was still affected for the benthic copepod. This approach combining chemical analysis and bioassays is promising for assessing the efficacy of remediation processes at contaminated marine sites. Environ Toxicol Chem 2020;39:492-499. © 2019 SETAC.
Collapse
Affiliation(s)
- Maria P Charry
- Cawthron Institute, Nelson, New Zealand
- School of Biological Sciences, University of Auckland, Auckland, New Zealand
| | | | - Sally Gaw
- School of Physical and Chemical Sciences, University of Canterbury, Christchurch, New Zealand
| | - Mark J Costello
- Institute of Marine Science, University of Auckland, Auckland, New Zealand
| | | | - Louis A Tremblay
- Cawthron Institute, Nelson, New Zealand
- School of Biological Sciences, University of Auckland, Auckland, New Zealand
| |
Collapse
|
2
|
Charry MP, Northcott GL, Gaw S, Keesing V, Costello MJ, Tremblay LA. Development of acute and chronic toxicity bioassays using the pelagic copepod Gladioferens pectinatus. Ecotoxicol Environ Saf 2019; 174:611-617. [PMID: 30875554 DOI: 10.1016/j.ecoenv.2019.03.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 02/28/2019] [Accepted: 03/05/2019] [Indexed: 06/09/2023]
Abstract
Well validated and reliable biological assays using local and native species are required to characterise the impacts of pollution on ecosystem health. We identified a native estuarine pelagic copepod species suitable for assessing the ecotoxicological impact of anthropogenic contaminants. Gladioferens pectinatus fulfilled the necessary-selection criteria of: wide distribution and abundance across New Zealand estuaries, ease of maintenance in the laboratory, short life cycle, sensitivity to toxicants with different modes of action, and providing reproducibility of biological response to toxicants. Measured endpoints were survival and larval development rate for the nauplii, and survival, realized offspring and total potential offspring for adults. LC50 values for the survival of G. pectinatus exposed to copper, phenanthrene and chlorpyrifos were 170 (143-193), 181.3 (131.3-231.3) and 4.3 (3.8-4.9) µg/L, respectively. The most sensitive chronic endpoint identified for G. pectinatus was the larval development rate, with EC50 values of 49.8 (45-55.3), 31.3 (24.8-44.7) and 1.97 (1.6-2.31) µg/L for copper, phenanthrene and chlorpyrifos, respectively. The acute and chronic responses obtained for G. pectinatus against the three reference toxicants are comparable with those reported for other copepod species and confirm its sensitivity and suitability to assess the toxicity of New Zealand estuarine samples.
Collapse
Affiliation(s)
- Maria P Charry
- Cawthron Institute, Private Bag 2, Nelson 7042, New Zealand; School of Biological Sciences, University of Auckland, Auckland 1142, New Zealand
| | - Grant L Northcott
- Northcott Research Consultants, 20 River Oaks Place, Hamilton 3200, New Zealand
| | - Sally Gaw
- Chemistry Department, University of Canterbury, Private Bag 4800, Christchurch 8140 New Zealand
| | - Vaughan Keesing
- Boffa Miskell Ltd, PO Box 13340, Wellington 6142, New Zealand
| | - Mark J Costello
- Institute of Marine Science, University of Auckland, Auckland 1142, New Zealand
| | - Louis A Tremblay
- Cawthron Institute, Private Bag 2, Nelson 7042, New Zealand; School of Biological Sciences, University of Auckland, Auckland 1142, New Zealand.
| |
Collapse
|
3
|
Charry MP, Wells JBJ, Keesing V, Smith KF, Stringer TJ, Tremblay LA. Quinquelaophonte Aurantius sp. nov., a new harpacticoid species (Copepoda: Harpacticoida: Laophontidae: Quinquelaophonte) from New Zealand. New Zealand Journal of Zoology 2018. [DOI: 10.1080/03014223.2018.1548496] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Maria P. Charry
- Cawthron Institute, Nelson, New Zealand
- School of Biological Sciences, University of Auckland, Auckland, New Zealand
| | - John B. J. Wells
- School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand
| | | | | | - Tristan J Stringer
- School of Biological Sciences, University of Canterbury, Christchurch, New Zealand
| | - Louis A. Tremblay
- Cawthron Institute, Nelson, New Zealand
- School of Biological Sciences, University of Auckland, Auckland, New Zealand
| |
Collapse
|
4
|
Charry MP, Keesing V, Costello M, Tremblay LA. Assessment of the ecotoxicity of urban estuarine sediment using benthic and pelagic copepod bioassays. PeerJ 2018; 6:e4936. [PMID: 29868297 PMCID: PMC5984583 DOI: 10.7717/peerj.4936] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 05/21/2018] [Indexed: 12/25/2022] Open
Abstract
Urban estuarine sediments are sinks to a range of contaminants of anthropogenic origin, and a key challenge is to characterize the risk of these compounds to receiving environments. In this study, the toxicity of urban estuarine sediments was tested using acute and chronic bioassays in the benthic harpacticoid Quinquelaophonte sp., and in the planktonic calanoid Gladioferens pectinatus, two New Zealand copepod species. The sediment samples from the estuary tributary sites significantly impacted reproduction in Quinquelaophonte sp. However, results from one of the estuary sites were not significantly different to those from the tributaries sites, suggesting that chemicals other than trace metals, polycyclic aromatic hydrocarbons and ammonia may be the causative stressors. Sediment elutriate samples had significant effects on reproductive endpoints in G. pectinatus, and on the induction of DNA damage in cells, as shown by the comet assay. The results indicate that sediment contamination at the Ahuriri Estuary has the potential to impact biological processes of benthic and pelagic organisms. The approach used provides a standardized methodology to assess the toxicity of estuarine sediments.
Collapse
Affiliation(s)
- Maria P Charry
- School of Biological Sciences, University of Auckland, Auckland, New Zealand.,Cawthron Institute, Nelson, New Zealand
| | | | - Mark Costello
- Institute of Marine Science, University of Auckland, Auckland, New Zealand
| | - Louis A Tremblay
- School of Biological Sciences, University of Auckland, Auckland, New Zealand.,Cawthron Institute, Nelson, New Zealand
| |
Collapse
|
5
|
Stringer TJ, Glover CN, Keesing V, Northcott GL, Gaw S, Tremblay LA. Development of acute and chronic sediment bioassays with the harpacticoid copepod Quinquelaophonte sp. Ecotoxicol Environ Saf 2014; 99:82-91. [PMID: 24176293 DOI: 10.1016/j.ecoenv.2013.10.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Revised: 09/27/2013] [Accepted: 10/02/2013] [Indexed: 06/02/2023]
Abstract
Reliable environmentally realistic bioassay methodologies are increasingly needed to assess the effects of environmental pollution. This study describes two estuarine sediment bioassays, one acute (96 h) and one chronic (14 d), with the New Zealand harpacticoid copepod Quinquelaophonte sp. utilising behavioural and reproductive endpoints. Spiked sediments were used to expose Quinquelaophonte sp. to three reference compounds representing important categories of estuarine chemical stressors: zinc (a metal), atrazine (a pesticide), and phenanthrene (a polycyclic aromatic hydrocarbon). Acute-to-chronic ratios (ACR) were used to further characterise species responses. Acute sediment (sandy and low total organic content) 96 h EC50 values for the sublethal inhibition of mobility for zinc, atrazine and phenanthrene were 137, 5.4, and 2.6 µg/g, respectively. The chronic EC50 values for inhibition of reproduction (total offspring) were 54.5, 0.0083, and 0.067 µg/g for zinc, atrazine, and phenanthrene, respectively. For phenanthrene, a potentially novel mode of action was identified on reproduction. Quinquelaophonte sp. was found to be more sensitive than several other estuarine species indicating choice of test organism is important to characterising the effects of environmentally relevant levels of contamination. The bioassay sediment results demonstrate the sensitivity and suitability of Quinquelaophonte sp. as a tool for the assessment use of estuarine health.
Collapse
Affiliation(s)
- Tristan J Stringer
- School of Biological Sciences, University of Canterbury, Private Bag 4800, Christchurch 8140, New Zealand; Landcare Research, PO Box 40, Lincoln 7640, New Zealand.
| | | | | | | | | | | |
Collapse
|
6
|
Stringer TJ, Glover CN, Keesing V, Northcott GL, Tremblay LA. Development of a harpacticoid copepod bioassay: selection of species and relative sensitivity to zinc, atrazine and phenanthrene. Ecotoxicol Environ Saf 2012; 80:363-371. [PMID: 22521687 DOI: 10.1016/j.ecoenv.2012.04.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2011] [Revised: 04/02/2012] [Accepted: 04/03/2012] [Indexed: 05/31/2023]
Abstract
Worldwide, estuaries are under increasing pressure from numerous contaminants. This study aimed to identify a suitable marine harpacticoid copepod species for toxicity testing of New Zealand estuaries. Multiple aspects were considered for species selection and included: a broad regional distribution, ease of culture, reproductive rate under laboratory conditions, sexual dimorphism, and sensitivity to contaminants. Five species were evaluated and two (Robertsonia propinqua and Quinquelaophonte sp.) were able to be cultured. The relative sensitivity of these copepods to three reference toxicants was assessed by determining the medial lethal values following a 96 h exposure (96 h LC(50)) to these toxicants in the aquatic phase. LC(50) values for zinc, phenanthrene, and atrazine respectively were 2.0, 0.89, and 7.58 mg/L in R. propinqua and 0.64, 0.75, and 20.8 mg/L in Quinquelaophonte sp. After evaluating all factors involved in choosing a bioassay species for New Zealand, Quinquelaophonte sp. was selected as the most suitable bioassay species.
Collapse
Affiliation(s)
- Tristan J Stringer
- School of Biological Sciences, University of Canterbury, Private Bag 4800, Christchurch 8140, New Zealand.
| | | | | | | | | |
Collapse
|
7
|
Hack LA, Tremblay LA, Wratten SD, Forrester G, Keesing V. Toxicity of estuarine sediments using a full life-cycle bioassay with the marine copepod Robertsonia propinqua. Ecotoxicol Environ Saf 2008; 70:469-474. [PMID: 18242700 DOI: 10.1016/j.ecoenv.2007.12.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2006] [Revised: 10/10/2007] [Accepted: 12/09/2007] [Indexed: 05/25/2023]
Abstract
Estuarine sediment contamination is a growing significant ecological issue in New Zealand. Methods of assessing toxicity and ecological impacts in a cost effective way are currently limited. Further to that is a need to develop bioassays that generate data quickly and cost effectively and have ecological relevance to the wider community. A chronic full life-cycle bioassay to assess the toxicity of New Zealand estuarine sediments using the marine harpacticoid copepod Robertsonia propinqua has been investigated. Sediment samples were collected from the Bay of Plenty region and included two polluted and one reference site. Sources of pollutants in the contaminated field sites originated from a variety of sources and generally include nutrients, pesticides and herbicides and the pollutants zinc, copper, lead and polycyclic aromatic hydrocarbons (PAHs). Conversely, the reference site was exposed to low levels of contaminants due to the relatively undeveloped catchment. Adult male and female copepods were exposed to field collected sediments for 24 days under flow-through conditions at 21 degrees C and 12h L:D cycles. Five endpoints were recorded: male and female survival, fecundity (number of gravid females per replicate at the end of the test), clutch size per female, number of eggs per sample and juvenile survival (number of nauplii and copepodites per replicate at the end of the test). Adult mortality was observed in all sediment samples but the number of males, gravid females, clutch size per female and number of eggs produced were not affected by either the contaminated or reference sediment samples. However, the contaminated sediments did reduce reproductive output (i.e. nauplii and copepodite production). Therefore, we conclude that reproductive endpoints provide a good measure of sediment-associated contaminant effects compared with adult R. propinqua survivorship. It may be that a change in focus from chemical thresholds without ecological relevance or lethal dose threshold methods, to more subtle but ecologically significant elements of faunal life, such as reproductive success, are a more sensitive and a long term ecologically informative method.
Collapse
Affiliation(s)
- Lisa A Hack
- National Centre for Advanced Bio-Protection Technologies, Lincoln University, PO Box 84, Canterbury, New Zealand.
| | | | | | | | | |
Collapse
|
8
|
Hack LA, Tremblay LA, Wratten SD, Lister A, Keesing V. Benthic meiofauna community composition at polluted and non-polluted sites in New Zealand intertidal environments. Mar Pollut Bull 2007; 54:1801-12. [PMID: 17868745 DOI: 10.1016/j.marpolbul.2007.07.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2007] [Revised: 07/23/2007] [Accepted: 07/25/2007] [Indexed: 05/17/2023]
Abstract
Meiofauna composition was investigated for six field sites, including polluted and non-polluted sites, within two regions (Auckland and Bay of Plenty) during winter (July-August 2004) in the North Island of New Zealand. Physico-chemical parameters were measured during the sampling period and meiofauna distribution and abundance were compared with these measured parameters. Analysis of meiofauna abundance indicated that foraminiferans, nematodes and ostracods were the taxa that contributed to the variability between field sites within the Auckland region. However, no clear taxa dominance was seen in the Bay of Plenty region. Comparison of meiofauna abundance and physico-chemical parameters was done using multivariate analysis (PRIMER). However, no clear relationships between the parameters were observed in any field site in either region. The Shannon-Weiner index of diversity did not show any clear differentiation between polluted and non-polluted field sites. Therefore, from the present study, the taxa or physico-chemical parameters used could not effectively characterise pollution at the investigated field sites.
Collapse
Affiliation(s)
- Lisa A Hack
- National Centre for Advanced Bio-Protection Technologies, Lincoln University, P.O. Box 84, Canterbury, New Zealand.
| | | | | | | | | |
Collapse
|
9
|
|