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Karyotype evolutionary diversification in marine fishes. First classical and molecular cytogenetic data on four Atlantic species N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2024-03-17 Wagner Franco Molina, Karlla Danielle Jorge Amorim, Simião Alefe Soares da Silva, Marcelo de Bello Cioffi, Luiz Antonio Carlos Bertollo, Rodrigo Xavier Soares, Clóvis Coutinho da Motta-Neto, Gideão Wagner Werneck Félix da Costa
Fishes present an exceptional level of diversification among vertebrates, whose adaptive instructions contained in their genome are physically organised in their chromosomes. Although cytogenetic d...
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Invasive New and Old World freshwater species in isolated springs of the Atacama Desert: implications for native species N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2024-03-11 Gonzalo A. Collado, Rebeca Carballo, Nicolás Villalobos, Francisco Gómez, Viviana Castillo, Álvaro Alonso
Invasive species can significantly alter invaded ecosystems. In this study, we report the presence of two invasive species, the poeciliid fish Poecilia reticulata and the gastropod Melanoides tuber...
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Effects of reproductive condition on haemocyte parameters in the Pacific abalone Haliotis discus hannai during the spawning period N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2024-03-11 Pantip Sawangwong, Nan Chen, Xuan Luo, Grace Afumwaa Boamah, Jin-Chywan Gwo, Caihuan Ke, Weiwei You
The assessment of morphology and immunology of specimens at different maturity stages is essential for the determination of spawning strategy and reducing the risk of mortality. In this paper, fema...
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Long-term warming and record-breaking marine heatwaves in the Hauraki Gulf, northern New Zealand N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2024-03-11 Nick T. Shears, Melissa M. Bowen, François Thoral
As global oceans warm, long-term temperature records are critical in understanding and interpreting warming trends and the significance of marine heatwaves (MHWs) in coastal environments. Daily mea...
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Correction N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2024-03-07
Published in New Zealand Journal of Marine and Freshwater Research (Ahead of Print, 2024)
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Tracing transgenerational plasticity through ova fatty acid biomarkers in Giant Kōkopu (Galaxias argenteus) N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2024-03-07 Armagan Sabetian, Luu Huong Hoang, Jingjing Zhang, Julian Lilkendey
Broodstock management has traditionally focused on heritable traits and diet-induced gamete quality. However, the potential of transgenerational plasticity (TP) underscores the importance of unders...
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Effects of point-source discharges on shortfin eels (Anguilla australis) along the Waikato River, New Zealand N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2024-02-25 David W. West, Brendan J. Hicks, Nicholas Ling, Michael R. van den Heuvel, Louis A. Tremblay
The Waikato River is the longest river in New Zealand and is exposed to range of anthropogenic stressors. This study investigated the effects of three major point-source discharges on resident shor...
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Re-assessment of a blackfoot abalone (Haliotis iris) population in Peraki Bay, New Zealand, after 45 years N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2024-02-25 Finn J. Ryder, Keith J. Sainsbury, Christopher D. Hepburn, Daniel W. Pritchard, Gaya Gnanalingam
Marine species are facing an increasing number of stressors and some species once thought to be resilient to change are now threatened. It is important to understand how species populations have ch...
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Common bully (Gobiomorphus cotidianus) and mosquitofish (Gambusia affinis) shift littoral zooplankton community composition to smaller bodied taxa N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2024-02-21 Flavian Ember, Nicholas Ling, Ian C. Duggan
We investigated the effects of native common bully (Gobiomorphus cotidianus) and non-native western mosquitofish (Gambusia affinis) on zooplankton assemblages in an outdoor mesocosm experiment. Twe...
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Growth of juvenile red abalone (Haliotis rufescens) co-cultivated with two densities of warty sea cucumber (Apostichopus parvimensis) N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2024-02-18 Jeremie Bauer, Rodrigo Beas-Luna, Ricardo Searcy-Bernal, Fiorenza Micheli, Leonardo Vázquez-Vera, Charles Boch, Eugenio Carpizo-Ituarte, Fabiola Lafarga-De la Cruz, Gabriela Montaño-Moctezuma, Julio Lorda
Co-culture of abalone and sea cucumber can result in benefits. This study investigated for 131 days the growth of juvenile red abalone (Haliotis rufescens) co-cultured with two densities of warty s...
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Spatial variation in the rocky temperate benthic mesophotic communities of the Wellington region in New Zealand N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2024-02-14 James J. Bell, Francesca Strano, Manon Broadribb-Payne, Ben Harris, Alice Rogers, Valerio Micaroni
Temperate mesophotic ecosystems (TMEs) have only recently been recognised as distinct ecosystems and generally occur between 30 and 150 m at the limit of photosynthetic light penetration. In this s...
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Morphometric and meristic discrimination within juvenile flounder species in New Zealand indicate genetic and environmental disparities N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2024-02-11 Tim H. Currie, Stephen R. Wing, Leonardo M. Durante
Morphometrics and meristics are measurable and countable traits, respectively, that are under simultaneous control by genetic and/or environmental factors. Resolving morphometric and meristic spati...
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The metabolic fate of abalone: transport and recovery of Haliotis iris gills as a case study N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2024-01-31 Leonie Venter, Andrea C. Alfaro, Jeremie Zander Lindeque, Peet J. Jansen van Rensburg
Abalone is a gourmet seafood with a high commercial value, particularly when obtained as a live product. During live transportation, abalone encounter stressors causing biochemical modifications to...
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Influence of hydrological changes on the composition of phytoplankton and sediment diatoms in the Rio de la Plata estuary N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2024-01-29 Ana Martínez Goicoechea, Laura Pérez, Felipe García-Rodríguez
ENSO phases produce changes in precipitation and river flow in Eastern South America. We aimed to evaluate phytoplankton and surface sediment diatoms' response to ENSO within the Río de la Plata es...
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Conductivity anomalies provide evidence of large scale hydrothermal venting in Lake Taupō N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2024-01-29 Max Gibbs, Piet Verburg, Brad Scott
Lake Taupō (Taupō moana) in the central North Island is the largest freshwater lake in Aotearoa/New Zealand. Taupō is also a frequently active and potentially hazardous caldera volcano. Water quali...
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Ecological and archaeological consequences of ongoing, largely human-mediated colonisation of endemic soft, shelly habitats by mangroves in a northern New Zealand embayment N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2024-01-29 John D. Booth, James J. Robinson, Reuben C. Booth, Robert S. Willoughby
Areal extent of native mangroves, Avicennia marina, has doubled in Bay of Islands since 1951. This expansion is widely attributed to deforestation and poor land-use practices beginning in the late ...
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Winter consumption of the introduced Green Crab Carcinus maenas by Kelp Gulls Larus dominicanus N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2024-01-25 Nora Lisnizer, Paula Giudici, Miriam Pollicelli, Juan Cortés, Martín Frixione, Pablo Yorio
The introduction of species can have negative effects on species, communities, and ecosystems, although native predators may profit from the introduced prey. We present an evaluation of the consump...
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Optimising abalone settlement and metamorphosis: a red macroalgae candidate as an alternative to existing algal substrates N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2024-01-25 Gercende Courtois de Viçose, Nuria Marrero Sánchez, María del Pino Viera Toledo, Juan Manuel Afonso López
Settlement induction potential of two red algae, Sahlingia subintegra and Rhodosorus marinus, and one green macroalgae, Ulvella leptochaete was examined to identify potential alternative algal spec...
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Fishways provide catchment-scale improvements to common galaxias (Galaxias maculatus) upstream of a barrier in south-eastern Australia N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2023-12-04 Frank Amtstaetter, Justin O’Connor, Dan Borg, Lauren Johnson, Paul Moloney
The common occurrence of dams is a major threat to riverine fish communities globally and a common remediation technique for fragmented fish communities is fishway construction. Demonstrating the e...
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Opportunistic discovery of giant kōkopu (Galaxias argenteus) spawning in a tidal reach: site description and implications N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2023-11-20 Shane Orchard, Shaun Wilkinson
This paper reports the first observation of a giant kōkopu (Galaxias argenteus) spawning site in a tidal waterway and illustrates the usefulness of DNA barcoding for opportunistic discoveries that ...
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Are marine reserves and temporary closed areas effective in enhancing blue cod (Parapercis colias) sub-populations? N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2023-11-22 Michael Peter Beentjes
The primary aim of this study was to determine if blue cod (Parapercis colias) sub-populations demonstrate increases in abundance and size when protected from fishing. (1) Four South Island, New Ze...
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The complete mitogenome of Haliotis asinina (Gastropoda, Haliotidae) from Malaysian waters provides further insights into the phylogeny of the abalone N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2023-11-13 Nur-Syahirah Mamat, Yuzine Esa, Nur Leena W. S. Wong, Siti-Azizah Mohd Nor, Nazia Abdul Kadar, Julia D. Sigwart, Aziz Arshad
Due to its high economic importance, the aquaculture of abalone has developed significantly as a global industry. However, there is still limited studies of abalone in Malaysia. Therefore, the comp...
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Growth and survival of juvenile red abalone (Haliotis rufescens) fed invasive macroalgae N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2023-11-12 Jeremie Bauer, Rodrigo Beas-Luna, Misael Emeterio-Cerecero, Juan Vaca-Rodríguez, Gabriela Montaño-Moctezuma, Julio Lorda
Abalone is one of the most important small-scale fisheries in Mexico and is challenged by multiple stressors. For example, the loss of the native main food, Macrocystis pyrifera, and the subsequent...
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Review of skeletal carbonate mineralogy of brachiopods with new material from New Zealand N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2023-10-26 Abigail M. Smith, David F. Freeman, Ian S. Dixon-Anderson, Daphne E. Lee
We combine published and new mineralogical data on most major taxa of brachiopods from all over the world, to investigate patterns and controls on brachiopod carbonate mineralogy. Measurements of 1...
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Expanding the menu for New Zealand farmed abalone: dietary inclusion of insect meal and grape marc (effects on gastrointestinal microbiome, digestive morphology, and muscle metabolome) N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2023-10-29 Natalia Bullon, Andrea C. Alfaro, Jinchen Guo, Joanna Copedo, Thao V. Nguyen, Ali Seyfoddin
Limited supply of sustainable feed ingredients is a significant concern for future aquaculture practices. Alternative ingredients, such as insect meal and grape marc, are suitable for aquaculture n...
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Allocations, quota and abalone fishery management: the Tragedy of the commons revisited N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2023-10-26 David R. Schiel, Shawn Gerrity, Shane Orchard
Fisheries management uses a variety of methods to assess stocks, assign quota or allocations, and calculate potential for sustainability. In the New Zealand abalone (pāua) fishery, neither the tota...
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Snapshots in time: quantifying dynamics of coastal vessel traffic in a dolphin hotspot N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2023-10-25 William Carome, William Rayment, Elisabeth Slooten, M. Hamish Bowman, Emmanuelle Martinez, Stephen M. Dawson
Small vessels contribute substantially to coastal soundscapes, presenting myriad potential impacts on marine species and ecosystems, yet are challenging to monitor using standard tracking methods (...
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A review on green-lipped mussel, Perna canaliculus immunology: the drivers, virulence factors, advances, and applications N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2023-10-25 Awanis Azizan, Leonie Venter, Andrea C. Alfaro
The endemic, green-lipped mussel (Perna canaliculus), trademarked as Greenshell™ mussel, contributes most to the New Zealand aquaculture industry based on tonnage and export value. Research on muss...
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Combining a novel outplant module with metareplication to further abalone restoration capacity in California N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2023-10-18 Adam Obaza, Amanda Bird, Dave Witting, Heather Burdick, Benjamin Grime, Melissa Neuman
Species reintroductions require large resource investments for rearing and placement and are further complicated by the paucity of robust monitoring regimes. Nonetheless, continued population decli...
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Worldwide abalone production: an update N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2023-10-11 Peter A. Cook
This paper presents a review of information presented at the 11th International Abalone Symposium, held in New Zealand in February 2023, where representatives from a range of countries presented da...
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A preliminary investigation of zooplankton diapausing eggs from waterbird faecal droppings in New Zealand N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2023-10-04 Kelly M. Jamieson, Ian C. Duggan
We analysed internal dispersal of zooplankton by waterbirds (endozoochory) in New Zealand, quantifying zooplankton eggs in faecal droppings collected at two lakes, Lake Rotoroa (Hamilton) and Lake ...
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Line configuration and farming depth markedly affect survival and growth in the kelp Ecklonia radiata N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2023-09-20 Jacob Nepper-Davidsen, Marie Magnusson, Christopher R. K. Glasson, Rebecca J. Lawton
The native kelp Ecklonia radiata is a target species for the emerging seaweed aquaculture industry in New Zealand, however, the effect of line configuration on survival and growth of farmed seaweed...
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A preliminary estimate of the contribution of coastal blue carbon to climate change mitigation in New Zealand N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2023-09-13 Finnley W. R. Ross, Dana E. Clark, Olga Albot, Anna Berthelsen, Richard Bulmer, Josie Crawshaw, Peter I. Macreadie
ABSTRACT The scale at which New Zealand is currently storing and sequestering blue carbon, and could create additional blue carbon via restoration, has been unclear. Here, we calculate a preliminary estimate for the current extent of three key blue carbon ecosystems (saltmarshes, mangrove forests and seagrass meadows), their carbon stocks and their carbon sequestration rates using the best available
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Coral reefs of Australia: perspectives from beyond the water’s edge N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2023-08-06 Candida Savage
Published in New Zealand Journal of Marine and Freshwater Research (Vol. 58, No. 1, 2024)
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Effects of sediment pulses on the deep-sea coral Goniocorella dumosa N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2023-07-31 Valeria Mobilia, Dianne M. Tracey, Vonda Cummings, Malcolm R. Clark, Lisa Woods, James Bell
ABSTRACT Seabed-contact activities operating in the deep sea can generate sediment plumes that pose varying levels of threat to benthic fauna. Corals are important components of deep-sea ecosystems and can be particularly sensitive to elevated suspended sediment concentrations. In this study, we exposed colony fragments of the New Zealand deep-sea scleractinian Goniocorella dumosa to four-day pulses
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Chironomidae responses to volcanic ash fall: a case study from Northern Patagonia for consideration in paleolimnological reconstructions N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2023-07-24 Natalia Williams, Andrea Rizzo, Romina Daga, Walter A. Alfonzo, Sergio Ribeiro Guevara
ABSTRACT Lacustrine environments from Northern Patagonia are exposed to volcanic events from the Southern Volcanic Zone. Chironomid larvae are an important paleo-proxy because, in addition to their environmental sensitivity, their chitinous cephalic capsules are well preserved in lacustrine sediments, allowing their recovery and identification. We analysed the effects of a recent volcanic eruption
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Which variables influence the structure and abundance of aquatic herbivorous assemblages in small forested Patagonian wetlands? N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2023-07-23 Fabián Gastón Jara, Patricia Elizabeth Garcia, Roberto Daniel Garcia, Julieta Valeria Sganga, Mariana Pueta
ABSTRACT Herbivores in wetlands are key organisms that shape the structure and composition of wetland plant communities (algae and vascular plants). The detritus produced by herbivory contributes to nutrient cycling and provides important resources for other organisms in the ecosystem. Due to their importance, we decided to survey a set of 12 seasonal wetlands located in Andean Patagonian forests.
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Diet variation of common smelt across a salinity gradient in coastal lakes on Rēkohu (Chatham Island) N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2023-07-19 Grace Fortune-Kelly, Motia Gulshan Ara, Travis Ingram
ABSTRACT Sea level rise threatens ecosystem function in coastal lakes by increasing salinity and altering community composition. As mobile generalists, fish have considerable influence on the stability of a system by impacting trophic network structure. Understanding their diet across abiotic gradients, including salinity, can show key characteristics of their ecological role, and predator diet shifts
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Using a transcriptomic approach to understand poor growth performance in farmed orange-spotted grouper (Epinephelus coioides) larvae: a case study in a commercial hatchery N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2023-07-09 Su Khi Ng, Cher Chien Lau, Min Pau Tan, Siti Azizah Mohd Nor, Muhd Danish-Daniel, Nor Afiqah-Aleng, Zainal Abidin Muchlisin, Nur Fadli
ABSTRACT The orange-spotted grouper (Epinephelus coioides) is one of the most popular fish in aquaculture due to its high economic value. However, the random occurrence of slow-growing population has led to profit loss. Therefore, transcriptomic analysis was performed to identify the molecular mechanisms involved in driving slow and fast growth, towards addressing this issue. Results show that low
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Development and validation of molecular biomarkers for the green-lipped mussel (Perna canaliculus) N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2023-07-05 Camille G. Baettig, Andrew Barrick, Martin Zirngibl, Gavin Lear, Kirsty F. Smith, Grant L. Northcott, Louis A. Tremblay
ABSTRACT Globally, there is a move towards using local, native species for ecotoxicological risk assessments. Anthropogenic stressors from urban, agricultural, and industrial activities can impact the health of receiving ecosystems. Biomarkers can provide valuable insights as early warning signals of the potential environmental impacts of stressors. The aim of this study was to develop biomarkers in
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Seasonal trends in marine heatwaves highlight vulnerable coastal ecoregions and historic change points in New Zealand N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2023-06-11 Shinae Montie, François Thoral, Robert O. Smith, Felix Cook, Leigh W. Tait, Matthew H. Pinkerton, David R. Schiel, Mads S. Thomsen
ABSTRACT Marine heatwaves (MHWs) have increased worldwide in intensity, frequency, and duration, often with severe impacts on ecologically and socio-economically important coastal habitats. Most MHW studies have focused on summer events in specific regions or global open-water analyses with little consideration to seasonality or spatial biogeography of the nearshore zone. We address this research gap
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The role of wind and buoyancy forcing on mixed layer depths and productivity on the Chatham Rise from ocean glider and ship-based observations N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2023-06-07 Charine Collins, Joe O’Callaghan, Malcolm R. Clark, Scott D. Nodder
ABSTRACT The Subtropical Front (STF) and associated biological productivity are topographically locked to the Chatham Rise. Year-to-year differences of upper ocean dynamics and associated responses of phytoplankton are valuable for understanding variability in fisheries biomass as well as providing new knowledge of environmental condition for potential seabed mining in this keystone ecosystem. In-situ
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Identification and characterisation of Botrylloides (Styelidae) species from Aotearoa New Zealand coasts N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2023-05-29 Berivan Temiz, Rebecca M. Clarke, Mike Page, Miles Lamare, Megan J. Wilson
ABSTRACT Ascidians are marine filter-feeder chordates. Botrylloides ascidians possess diverse biological properties such as whole-body regeneration (WBR), hibernation/aestivation, blastogenesis, metamorphosis, and natural chimerism. However, the absence of distinctive morphological features often makes identification difficult. Botrylloides diegensis is an ascidian that has been misidentified in previous
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Local variation in the timing of reproduction and recruitment in a widely distributed diadromous fish N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2023-05-24 Jesse Wansbrough, Pieter M. Lokman, Gerard P. Closs
ABSTRACT Īnanga (Galaxias maculatus) is a widespread freshwater fish, found around coastal New Zealand, Chatham Islands, southern Australia and southern South America, exhibiting both diadromous and land-locked life history patterns. We assessed population size structure, size at maturity, timing of reproduction, and post-reproductive survival in the Waikouaiti and Kakanui rivers, two regionally important
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Sediment preference of the introduced Japanese mantis shrimp Oratosquilla oratoria in northern New Zealand N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2023-05-03 Hayley R. Nessia, Ian D. Tuck, Richard B. Taylor
ABSTRACT The Japanese mantis shrimp Oratosquilla oratoria (De Haan, 1844) is a large stomatopod crustacean that was first reported from New Zealand in 2009, and is now present in many upper North Island estuaries, including the Kaipara and Manukau harbours. To assess the sediment traits of harbours potentially vulnerable to invasion by Japanese mantis shrimps, we examined its relationship with the
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Could spatial variation be more important than species identity in determining the presence of microplastics in temperate sponges? N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2023-03-23 Rachel L. Parry, Valerio Micaroni, Francesca Strano, James J. Bell
ABSTRACT Microplastic (MP) particles (<5000 µm) pose a risk to many marine organisms. Globally, sponges are important suspension-feeding organisms that may be particularly vulnerable to MPs since many of these particles fall within their food size range. However, there has been little research on spatial variation in MP abundance in sponges. Here we examined MP abundance and spatial variation in sponges
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Milk compositions and fatty acid profiles in two coastal odontocete species from the southwest Atlantic Ocean N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2023-03-22 Pablo Denuncio, Antonella D. Padula, Maria A. Mandiola, Gisela V. Giardino, Diego H. Rodríguez, Gabriel E. Machovsky-Capuska
ABSTRACT Lactation is a crucial reproductive stage in eutherian mammals and the most energetically and nutritionally expensive part of the life cycle. However, data on lactation parameters in cetaceans remain scattered and incomplete. In this paper, we present novel information on the nutritional compositions and fatty acid (FA) profiles of the milks of two small odontocete species that inhabit coastal
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Factors influencing summer phytoplankton biomass in a large river system with impoundments: retention time, zooplankton grazing, thermal stratification and internal seiching in a hydro lake N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2023-02-12 Max M. Gibbs, Eddie Bowman, Karl A. Safi, Anathea M. Albert, Ian C. Duggan, David Burger
ABSTRACT Phytoplankton production as indicated by chlorophyll a concentrations in Lake Karāpiro, the last hydro power station lake on the Waikato River, shows high seasonal variability but a long term trend of decrease, despite an abundance of nutrients (N and P) in the river. Early studies pre-2005 of the river system’s eight hydro dams identified that only Lakes Ohakuri and Arapuni thermally stratified
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Laboratory-based comparison of screening materials for excluding juvenile freshwater fishes from New Zealand water intakes N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2023-02-01 Phillip G. Jellyman, Caitlin M. Quilty, Christina R. Thomas, Charlotte B. Green, Michael J. H. Hickford
ABSTRACT Growing demand for water requires resource managers to be innovative to minimise impacts on aquatic ecosystems. There are increasing concerns about fish damage and losses at water intakes, but few studies have examined the effectiveness of different screening material for excluding New Zealand fishes. We experimentally tested six screens (50–100 and 100–200 mm rock bunds, 3 mm woven mesh,
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Variations in ecosystem service provision of two functionally similar bivalve habitats N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2023-01-30 Vera Rullens, Andrew M. Lohrer, Michael Townsend, Conrad A. Pilditch
ABSTRACT The quantification of ecosystem services (ES) remains challenging and can result in biases towards data-rich ES in management. For infaunal bivalves, little quantitative in situ data are available on the ES they provide, and differences between functionally similar species in different habitats are rarely considered. Here, we aimed to measure and compare the ecosystem functions (primary production
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Heavy metal levels in blood cockle from south Vietnam coastal waters N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2022-12-15 Nguyen Phuc Cam Tu, Nguyen Ngoc Ha, Nguyen Van Dong, Dinh The Nhan, Nguyen Nhu Tri
The blood cockle, Anadara granosa, is a favoured bivalve mollusc species of Vietnamese people. Since the cockle is a filter feeder, heavy metals (HM) in the mudflat and natural food tend to accumul...
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Destruction and reconstruction: is freshwater offsetting achieving No Net Loss? N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2022-11-23 Chloe A. Price, Kevin S. Simon, Martin Neale
‘Biodiversity offsetting’ aims to address the residual negative environmental impacts of human development. It’s goal is to achieve No Net Loss (NNL), and preferably a Net Gain of biodiversity attr...
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On the projected changes in New Zealand's wave climate and its main drivers N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2022-11-03 João Albuquerque, Jose A. A. Antolínez, Fernando J. Méndez, Giovanni Coco
Wave climatologies from historical and projected simulations of the ACCESS1.0, MIROC5 and CNRM-CM5 Global Circulation Models (GCM) were sourced from the Coordinated Ocean Wave Climate Project (COWC...
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Occurrence and anthropogenic-derived mortality of humpback whales (Megaptera novaeangliae) along the northern coast of Argentina, 2003–2021 N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2022-10-06 Gisela V. Giardino, Joaquín C. M. Gana, M. Carolina De León, M. Agustina Mandiola, Mariela Dassis, Pablo Denuncio, Andrea Elissamburu, Sergio Morón, Sergio Rodríguez Heredia, C. Karina Alvarez, Juan P. Loureiro, Victoria Massola, Luciano O. Valenzuela, Leandro Tamini, Paula Taraborelli, Alejandro Saubidet, Adrian Faiella, H. Luis Cappozzo, Ricardo O. Bastida, Diego H. Rodríguez
Sightings and strandings of humpback whales (Megaptera novaeangliae) along the coast of Buenos Aires Province in Argentina were once sporadic but have increased by up to 640% since 2018. Here, we a...
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Taura kuku: prioritising Māori knowledge and resources to create biodegradable mussel spat settlement lines for shellfish restoration in Ōhiwa harbour N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2022-09-04 Kura Paul-Burke (Ngāti Awa, Ngāti Whakahemo), Rokahurihia Ngarimu-Cameron (Te Whānau ā Apanui, Te Whakatōhea), Joe Burke (American), Richard Bulmer (Aotearoa European), Kerry Cameron (Ngāti Kahungungu, Ngāti Porou), Tuwhakairiora O’Brien (Ngāti Awa), Charlie Bluett (Ngāti Awa), Megan Ranapia (Ngāti Awa, Tainui)
ABSTRACT Mātauranga Māori (Māori knowledge) is grounded in place-based, multi-generational knowledge and the connection of that knowledge with the environments from which it is derived. It takes for granted that all elements of the natural world are related, and it is upon those relationships that survival depends. A Māori worldview advocates for the responsibility of each generation to pass onto their
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Understanding the diversity and phylogenetic placements of New Zealand amphipods within a global context N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2022-09-04 Eunji Park
Amphipods are an ecologically diverse group of crustaceans. Due to the limited number of fossil data and common morphological homoplasy, molecular data can be very useful to understand their evolut...
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Satellite remote sensing of coastal water quality in New Zealand N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2022-08-29 Mark P. Gall, Matthew H. Pinkerton, Tilmann Steinmetz, Simon Wood
ABSTRACT Water quality in estuarine and coastal waters of Aotearoa New Zealand is of concern yet currently under-monitored, reflecting challenges of sampling at regular intervals across large areas. Satellite products are currently underutilised (globally) by management agencies but could be part of a holistic approach. NIWA-SCENZ (Seas, Coasts and Estuaries New Zealand) is a website providing access
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Transcending boundaries: transitioning toward integrated estuary management in Aotearoa New Zealand N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2022-08-29 Dana E. Clark, Joanne Clapcott, Eleanor Gee, Andrew Lohrer, Kura Paul-Burke, Clive Howard-Williams
Published in New Zealand Journal of Marine and Freshwater Research (Vol. 56, No. 3, 2022)
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Estimating the abundance of the Hector’s dolphins (Cephalorhynchus hectori hectori) that use Porpoise Bay, New Zealand N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2022-08-17 Max Harvey, Steve Dawson, William Rayment
Hector’s dolphin, an endangered species endemic to the coastal waters of Aotearoa New Zealand, has a highly fragmented population structure. Low abundance of some local subpopulations, coupled with...
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Factors influencing cyanobacteria blooms: review of the historical monitoring data to assess management options for Lake Horowhenua N. Z. J. Mar. Freshw. Res. (IF 1.6) Pub Date : 2022-08-11 Max M. Gibbs, Jon Roygard, Maree Patterson, Logan Brown, David Brown
Factors influencing cyanobacterial blooms in Lake Horowhenua, Aotearoa/New Zealand, have been deduced from over 40 yrs routine monitoring data, detailed studies and high frequency (15-min interval)...