Search Results - "Hepburn, Christopher"

Effect of temperature on sporulation and spore development of giant kelp (Macrocystis pyrifera) by Le, Duong M, Desmond, Mathew J, Pritchard, Daniel W, Hepburn, Christopher D

“…Rising ocean temperature is a major driver of kelp forest decline worldwide and one that threatens to intensify over the coming decades. What is not…”
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Diffusion boundary layers ameliorate the negative effects of ocean acidification on the temperate coralline macroalga Arthrocardia corymbosa by Cornwall, Christopher E, Boyd, Philip W, McGraw, Christina M, Hepburn, Christopher D, Pilditch, Conrad A, Morris, Jaz N, Smith, Abigail M, Hurd, Catriona L

“…Anthropogenically-modulated reductions in pH, termed ocean acidification, could pose a major threat to the physiological performance, stocks, and biodiversity…”
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Light Limitation within Southern New Zealand Kelp Forest Communities by Desmond, Matthew J, Pritchard, Daniel W, Hepburn, Christopher D

“…Light is the fundamental driver of primary productivity in the marine environment. Reduced light availability has the potential to alter the distribution,…”
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The unprecedented coupled ocean-atmosphere summer heatwave in the New Zealand region 2017/18: drivers, mechanisms and impacts by Salinger, M James, Renwick, James, Behrens, Erik, Mullan, A Brett, Diamond, Howard J, Sirguey, Pascal, Smith, Robert O, Trought, Michael C T, Alexander, Lisa, Cullen, Nicolas J, Fitzharris, B Blair, Hepburn, Christopher D, Parker, Amber K, Sutton, Phil J

“…During austral summer (DJF) 2017/18, the New Zealand region experienced an unprecedented coupled ocean-atmosphere heatwave, covering an area of 4 million km2…”
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Diurnal fluctuations in seawater pH influence the response of a calcifying macroalga to ocean acidification by Cornwall, Christopher E., Hepburn, Christopher D., McGraw, Christina M., Currie, Kim I., Pilditch, Conrad A., Hunter, Keith A., Boyd, Philip W., Hurd, Catriona L.

“…Coastal ecosystems that are characterized by kelp forests encounter daily pH fluctuations, driven by photosynthesis and respiration, which are larger than pH…”
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A kelp with integrity: Macrocystis pyrifera prioritises tissue maintenance in response to nitrogen fertilisation by Stephens, Tiffany A., Hepburn, Christopher D.

“…Our understanding of the response of vascular, terrestrial plants to nitrogen (N) addition is advanced and provides the foundation for modern agriculture. In…”
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Water motion and pH jointly impact the availability of dissolved inorganic carbon to macroalgae by James, Rebecca K., Hepburn, Christopher D., Pritchard, Daniel, Richards, Derek K., Hurd, Catriona L.

“…The supply of dissolved inorganic carbon to seaweeds is a key factor regulating photosynthesis. Thinner diffusive boundary layers at the seaweed surface or…”
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Concentration boundary layers around complex assemblages of macroalgae: Implications for the effects of ocean acidification on understory coralline algae by Cornwall, Christopher E., Hepburn, Christopher D., Pilditch, Conrad A., Hurd, Catriona L.

“…Metabolic processes have the potential to modulate the effects of ocean acidification (OA) in nearshore macroalgal beds. We investigated whether natural mixed…”
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Carbon dioxide mitigation potential of seaweed aquaculture beds (SABs) by Sondak, Calvyn F. A., Ang, Put O., Beardall, John, Bellgrove, Alecia, Boo, Sung Min, Gerung, Grevo S., Hepburn, Christopher D., Hong, Dang Diem, Hu, Zhengyu, Kawai, Hiroshi, Largo, Danilo, Lee, Jin Ae, Lim, Phaik-Eem, Mayakun, Jaruwan, Nelson, Wendy A., Oak, Jung Hyun, Phang, Siew-Moi, Sahoo, Dinabandhu, Peerapornpis, Yuwadee, Yang, Yufeng, Chung, Ik Kyo

“…Seaweed aquaculture beds (SABs) that support the production of seaweed and their diverse products, cover extensive coastal areas, especially in the…”
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Metabolically induced pH fluctuations by some coastal calcifiers exceed projected 22nd century ocean acidification: a mechanism for differential susceptibility? by Hurd, Catriona L., Cornwall, Christopher E., Currie, Kim, Hepburn, Christopher D., McGraw, Christina M., Hunter, Keith A., Boyd, Philip W.

“…Anthropogenically mediated decreases in pH, termed ocean acidification (OA), may be a major threat to marine organisms and communities. Research has focussed…”
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Mass-transfer gradients across kelp beds influence Macrocystis pyrifera growth over small spatial scales by Stephens, Tiffany A., Hepburn, Christopher D.

“…Nitrogen is essential for algal productivity but often reaches limiting concentrations in temperate ecosystems. Increased water motion enhances nitrogen uptake…”
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CARBON-USE STRATEGIES IN MACROALGAE: DIFFERENTIAL RESPONSES TO LOWERED PH AND IMPLICATIONS FOR OCEAN ACIDIFICATION by Cornwall, Christopher E., Hepburn, Christopher D., Pritchard, Daniel, Currie, Kim I., McGraw, Christina M., Hunter, Keith A., Hurd, Catriona L.

“…Ocean acidification (OA) is a reduction in oceanic pH due to increased absorption of anthropogenically produced CO2 . This change alters the seawater…”
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Population genetic structure of the giant kelp Macrocystis pyrifera in Aotearoa/New Zealand by Le, Duong Minh, Desmond, Matthew J., Knapp, Michael, Kardailsky, Olga, Nelson, Wendy A., Zuccarello, Giuseppe C., Hepburn, Christopher D.

“…The giant kelp Macrocystis pyrifera is in global decline as a result of numerous stressors operating on both local and global scales. It is a species that…”
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Revealing hydrogen peroxide as an external stressor in macrophyte-dominated coastal ecosystems by Twigg, Isla M., Baltar, Federico, Hall, Jack R., Hepburn, Christopher D.

“…Benthic primary producers in coastal ecosystems provide important habitat for marine organisms through the provision of complex 3D habitat. Primary producers…”
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Species-specific responses of macrophyte production to the increasing CO2 environment with potential ecosystem implications involved in the Baltic Sea by Pajusalu, Liina, Albert, Gerli, Fachon, Evangeline, Hepburn, Christopher D., Kotta, Jonne, Kõivupuu, Anneliis, Paalme, Tiina, Pritchard, Daniel W., Põllumäe, Arno, Torn, Kaire, Martin, Georg

“…Macrophytes vary in their ability to utilize carbon in the form of HCO 3 − and/or CO 2 for photosynthesis. Some functional groups that solely use CO 2 for…”
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TESTING THE EFFECTS OF OCEAN ACIDIFICATION ON ALGAL METABOLISM: CONSIDERATIONS FOR EXPERIMENTAL DESIGNS by Hurd, Catriona L, Hepburn, Christopher D, Currie, Kim I, Raven, John A, Hunter, Keith A

“…Ocean acidification describes changes in the carbonate chemistry of the ocean due to the increased absorption of anthropogenically released CO₂. Experiments to…”
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Local management to support local fisheries: Rāhui (temporary closure) and bag limits for blackfoot abalone (Haliotis iris) in southern New Zealand by Gnanalingam, Gaya, Pritchard, Daniel W., Richards, Derek K., Subritzky, Peri, Flack, Brendan, Hepburn, Christopher D.

“…Spatially discrete stocks that vary in life history traits on a reef‐to‐reef scale present a challenge for fisheries managers. Nationally or regionally applied…”
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Constraints to effective comanagement of New Zealand's customary fisheries: experiences of the East Otago Taiāpure by Bennett-Jones, Louise, Gnanalingam, Gaya, Flack, Brendan, Scott, Nigel, Chambers, Paul, Hepburn, Christopher

“…Centralization of fisheries management within large-scale, colonial governing bodies can remove access and management rights of Indigenous communities and…”
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Coralline photosynthetic physiology across a steep light gradient by Nguyen, Hang T. T., Pritchard, Daniel W., Desmond, Matthew J., Hepburn, Christopher D.

“…Coralline algae (CA) are globally distributed and fulfil many important roles within coastal ecosystems. In this study, photosynthetically active radiation…”
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Nitrogen and phosphorus ecophysiology of coralline algae by Nguyen, Hang T. T., Pritchard, Daniel W., Hepburn, Christopher D.

“…The characteristics of nutrient uptake in macroalgae are generally well known but surprisingly little is known about nutrient uptake in coralline algae despite…”
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