title: Tū Māori Ake: Seeking which is above.

authors: Maxwell, Te Kahautu

abstract: Te Waka Āwhina 2015 Seeking that which is above Kaupapa - Philosophy o Aotearoa “Tū Māori ake” E ngā mana, e ngā reo, e ngā karangatanga, nei rā te powhiri ki a koutou katoa ‘MĀ TE MĀORI, MŌ TE MĀORI’ Te Waka Āwhina o Aotearoa National Training Hui by Māori for Māori within local government Āwhea: 2 – 4 February 2015 Ki whea: The Gallagher Academy of Performing Arts, The University of Waikato, Hamilton Hau kāinga: Te Puku o te Ika.

text: Tū Māori Ake: Seeking which is above. Te Waka Āwhina 2015 Seeking that which is above Kaupapa - Philosophy o Aotearoa “Tū Māori ake” E ngā mana, e ngā reo, e ngā karangatanga, nei rā te powhiri ki a koutou katoa ‘MĀ TE MĀORI, MŌ TE MĀORI’ Te Waka Āwhina o Aotearoa National Training Hui by Māori for Māori within local government Āwhea: 2 – 4 February 2015 Ki whea: The Gallagher Academy of Performing Arts, The University of Waikato, Hamilton Hau kāinga: Te Puku o te Ika.

year: 2015-02-03

title: Assessment of impacts of mechanical spat harvesting on the surf clams of Te Oneroa a Tōhē

authors: Ross, Philip M.

abstract: Much of the mussel spat used to seed mussel aquaculture farms throughout New Zealand is sourced from Te Oneroa a Tōhē (90 Mile Beach) in Te Hiku (far north of New Zealand). The mussel spat washes ashore attached to seaweed and hydroids where it is collected by spat harvesters and transported to mussel farms around the country to be on-grown. The collection of Te Hiku spat and seaweed was originally done by hand. However, the methods used have evolved over time and mussel spat is now primarily collected using mechanical loaders operating in the surf zone. Local iwi, hapu and the wider community have recently voiced their concerns about the impacts of this harvesting method. Specifically, there are concerns about the impact of loaders operating on top of toheroa (Paphies ventricosa) and tuatua (Paphies subtriangulata) beds or other shellfish inhabiting in the intertidal and subtidal areas of Te Oneroa a Tōhē. Consequently, research into the ecological impacts of mechanical spat harvesting was conducted to address the concerns of the community and inform the management of the Te Hiku spat fishery. 
This research aimed to examine the ecological impacts of a ‘worst case scenario’ by (1) simulating an intensity of spat harvesting activity much greater than would be anticipated in the ‘real world’ and (2) conducting the research at high density tuatua beds where impacts would potentially be greatest. Adult toheroa were not targeted in the experiment to avoid unnecessary impacts on already depleted toheroa populations. At each of three sites on Te Oneroa a Tōhē, nine spat harvesting loaders were repeatedly driven in and out of the surf, over shellfish beds, for 75 minutes leading up to the low tide. Once loader activity ceased, a sampling team made up of mana whenua, local primary school children, spat harvesters and staff from MPI, Te Ohu Kaimoana and the University of Waikato collected clams from the intertidal area. Collections were made from both impact and control (non-impact) sites, where (a) the number of crushed shells was quantified and (b) the self-righting and burying abilities of tuatua from impact and control areas were compared to provide an estimate of sub-lethal effects. 
There was no detectable impact of mechanical spat harvesting loaders on tuatua (or the juvenile toheroa that were present in the sampled tuatua beds) when these surf clams were either fully or partially buried in sands of Te Oneroa a Tōhē. Rates of shell damage were less 2 than 6.1% and were similar in impact and control areas indicating much of the observed shell damage was caused by the sediment corers that were used to extract samples from the beach. Similarly, being driven over by loaders did not affect the ability or speed at which tuatua were able to right and bury themselves in the sediment. When standing on end these clams appear robust to the forces exerted by loaders upon the sediment surface. However, beach cast clams (both tuatua and toheroa), lying on top of the sediment on their sides are vulnerable to crushing by vehicles. This includes juvenile clams that ‘float’ to the beach surface where multiple loader passes liquefy the surface sediment. Mortality in these beach cast clams was not well captured by the sampling methodology used in this study, but was observed at two of the three sites sampled. It was not possible to quantify this type of mortality during this study. However, the number of clams crushed on the beach surface was small relative to the high abundances of clams within the sediment and the impact is not considered ecologically significant at the scale the individual shellfish beds or the entire beach. 
Overall, there was nothing observed during the course of this experiment to suggest that mechanical harvesting is having a significant ecological effect on the toheroa or tuatua of Te Oneroa a Tōhē. Mechanical spat harvesting did result in some clam mortality during the course of this experiment, and it is likely that some mortality will occur in the future when clams are present on the beach surface. However, the level of mortality observed, and anticipated, is unlikely to compromise the viability of either clam species. 
To minimise clam mortality caused by spat harvesting, loader operators should endeavour to avoid areas where large numbers of surf clams are either beach cast or are observed washing around in the shallow subtidal. It would also be prudent, because of the depressed state of toheroa populations on Te Oneroa a Tōhē, for spat harvesters to have up-to-date information about the location of toheroa beds and avoid them where possible. 
It should be noted that concerns have been raised as to whether the driving of loaders during this study was equivalent to real world operations. However, the collection of operational data during this experiment, the proposed installation of GPS trackers on all loaders and the use of observers will allow for monitoring and enforcement of operating procedures established in the industry code of practise.

text: Assessment of impacts of mechanical spat harvesting on the surf clams of Te Oneroa a Tōhē Much of the mussel spat used to seed mussel aquaculture farms throughout New Zealand is sourced from Te Oneroa a Tōhē (90 Mile Beach) in Te Hiku (far north of New Zealand). The mussel spat washes ashore attached to seaweed and hydroids where it is collected by spat harvesters and transported to mussel farms around the country to be on-grown. The collection of Te Hiku spat and seaweed was originally done by hand. However, the methods used have evolved over time and mussel spat is now primarily collected using mechanical loaders operating in the surf zone. Local iwi, hapu and the wider community have recently voiced their concerns about the impacts of this harvesting method. Specifically, there are concerns about the impact of loaders operating on top of toheroa (Paphies ventricosa) and tuatua (Paphies subtriangulata) beds or other shellfish inhabiting in the intertidal and subtidal areas of Te Oneroa a Tōhē. Consequently, research into the ecological impacts of mechanical spat harvesting was conducted to address the concerns of the community and inform the management of the Te Hiku spat fishery. 
This research aimed to examine the ecological impacts of a ‘worst case scenario’ by (1) simulating an intensity of spat harvesting activity much greater than would be anticipated in the ‘real world’ and (2) conducting the research at high density tuatua beds where impacts would potentially be greatest. Adult toheroa were not targeted in the experiment to avoid unnecessary impacts on already depleted toheroa populations. At each of three sites on Te Oneroa a Tōhē, nine spat harvesting loaders were repeatedly driven in and out of the surf, over shellfish beds, for 75 minutes leading up to the low tide. Once loader activity ceased, a sampling team made up of mana whenua, local primary school children, spat harvesters and staff from MPI, Te Ohu Kaimoana and the University of Waikato collected clams from the intertidal area. Collections were made from both impact and control (non-impact) sites, where (a) the number of crushed shells was quantified and (b) the self-righting and burying abilities of tuatua from impact and control areas were compared to provide an estimate of sub-lethal effects. 
There was no detectable impact of mechanical spat harvesting loaders on tuatua (or the juvenile toheroa that were present in the sampled tuatua beds) when these surf clams were either fully or partially buried in sands of Te Oneroa a Tōhē. Rates of shell damage were less 2 than 6.1% and were similar in impact and control areas indicating much of the observed shell damage was caused by the sediment corers that were used to extract samples from the beach. Similarly, being driven over by loaders did not affect the ability or speed at which tuatua were able to right and bury themselves in the sediment. When standing on end these clams appear robust to the forces exerted by loaders upon the sediment surface. However, beach cast clams (both tuatua and toheroa), lying on top of the sediment on their sides are vulnerable to crushing by vehicles. This includes juvenile clams that ‘float’ to the beach surface where multiple loader passes liquefy the surface sediment. Mortality in these beach cast clams was not well captured by the sampling methodology used in this study, but was observed at two of the three sites sampled. It was not possible to quantify this type of mortality during this study. However, the number of clams crushed on the beach surface was small relative to the high abundances of clams within the sediment and the impact is not considered ecologically significant at the scale the individual shellfish beds or the entire beach. 
Overall, there was nothing observed during the course of this experiment to suggest that mechanical harvesting is having a significant ecological effect on the toheroa or tuatua of Te Oneroa a Tōhē. Mechanical spat harvesting did result in some clam mortality during the course of this experiment, and it is likely that some mortality will occur in the future when clams are present on the beach surface. However, the level of mortality observed, and anticipated, is unlikely to compromise the viability of either clam species. 
To minimise clam mortality caused by spat harvesting, loader operators should endeavour to avoid areas where large numbers of surf clams are either beach cast or are observed washing around in the shallow subtidal. It would also be prudent, because of the depressed state of toheroa populations on Te Oneroa a Tōhē, for spat harvesters to have up-to-date information about the location of toheroa beds and avoid them where possible. 
It should be noted that concerns have been raised as to whether the driving of loaders during this study was equivalent to real world operations. However, the collection of operational data during this experiment, the proposed installation of GPS trackers on all loaders and the use of observers will allow for monitoring and enforcement of operating procedures established in the industry code of practise.

year: 2020

title: Human geographies of the rural-urban fringe: Social dynamics of land development in the Nairobi rural-urban fringe, Kenya

authors: Thuo, Aggrey Daniel Maina

subjects: rural-urban fringe

abstract: The process of urbanization is one of the most important dimensions of economic, social and physical change. It is almost a truism that the planet’s future is an urban one and that the largest and fastest growing cities are primarily in developing countries. As in other parts of the developing world, the urban population in Africa is expected to double by 2025, Kenya is no exception. Rapid urban population growth means an increasing demand for urban land. This land is not available within cities, but in the rural-urban fringes, for various reasons. The conversion of agricultural land to residential uses in these areas is leading to rapid transformations of this space. This thesis is motivated by a concern for the quality of life and environment in the Nairobi rural-urban fringe, specifically Town Council of Karuri (TCK). This is because it is a place where generic problems associated with urban growth (such as pollution, social dislocation, land use conflicts, loss of agricultural land) are increasingly becoming evident and manifest. This thesis thus examines the dynamics of land use change in the TCK with the aim of building an understanding of the drivers of agricultural land conversions, implications of resulting land use changes, and the related response mechanisms to the changes. The leading question that guided the line of enquiry and discussion is: why is agriculture being squeezed out by non-agricultural land uses in the Nairobi rural-urban fringe? To understand land use dynamics it was necessary to frame landholders and their decision-making environments in ‘situated contexts’. However literature, personal experience and interviews, indicated that forces driving or influencing land conversions interact and operate at varying scales and in an interrelated manner. With this understanding the study adopted an approach that embraced a nested set of scales, an approach that enabled an understanding of the complex local and macro forces and their localized consequences and responses. A case study research that adopted a multiple method qualitative approach and made use of a conceptual framework that borrowed from different theoretical perspectives was adopted. This study, in the main, has indicated that the geography of rural-urban fringe is the outcome of a host of public and private economic, social, cultural, environmental and political forces operating on a variety of scales from the global to the local/human. As a result, a full understanding of the rural-urban fringe and of the problems and prospects for different people and places needs to be grounded in the knowledge of the structural forces and processes that operate on and in combination with contextual factors to condition the geographies of the rural-urban fringe. This study has explored the complexity of geographies of the rural-urban fringe from a social perspective. It has illustrated the significance of macro, micro, local/human forces in creating and recreating the rural-urban fringe environment. The study achieved this by delving into the TCK to examine the diversity of places and actors and the way they affect land development. This study points out that a number of powerful conditions/factors operate at broad scales to determine what is possible at the level of the individual landholder in respect to land use. These forces are leading to land conversions which produce both intended and unintended consequences. These consequences are contributing to change in social, cultural, environmental and economic aspects of the Nairobi rural-urban fringe. Actors (landholders and the residents) are however not passively accepting the fate of being victims of land use changes but instead they are evolving varieties of local/human-level responses (and also developing/recalling subaltern strategies) to enable them to live in the rapidly changing environment. Their varied individual and collective agency is however at times limited or strongly constrained by structural factors and conditions that are beyond their knowledge repertoire or control. This has led to differences in collective and individual responses to the conditions that shape the effects of drivers of land conversions. The differentiated responses are, however also, unintentionally creating conditions for further land conversions, either through making the hitherto unfavourable areas for settlement favourable or creating more obstacles for the continuation of viable agricultural activities. The findings of this thesis point out that the explanation of why agricultural land use is being edged out by non-agricultural uses in the Nairobi fringe is contingent on many factors/conditions, primary of which is population increase through natural growth and in-migration. Population growth thus is a necessary condition for land conversions from agricultural to residential use in the Nairobi fringe. The process that produces population growth is, however, a part of the processes that produces land conversions in the Nairobi fringe. The study argues for redefinition of focus as is embodied in the dichotomous definitions such as rural/urban, legal/illegal, formal/informal to definitions that reflect hybrid characteristics that rural-urban fringes are manifesting. Further implications of the findings on the future research, policy and planning in urban/rural-urban fringe contexts of the developing countries are also enumerated. Areas/aspects in which this thesis was considered weak are identified and future rural-urban fringe research directions are proposed.

text: Human geographies of the rural-urban fringe: Social dynamics of land development in the Nairobi rural-urban fringe, Kenya The process of urbanization is one of the most important dimensions of economic, social and physical change. It is almost a truism that the planet’s future is an urban one and that the largest and fastest growing cities are primarily in developing countries. As in other parts of the developing world, the urban population in Africa is expected to double by 2025, Kenya is no exception. Rapid urban population growth means an increasing demand for urban land. This land is not available within cities, but in the rural-urban fringes, for various reasons. The conversion of agricultural land to residential uses in these areas is leading to rapid transformations of this space. This thesis is motivated by a concern for the quality of life and environment in the Nairobi rural-urban fringe, specifically Town Council of Karuri (TCK). This is because it is a place where generic problems associated with urban growth (such as pollution, social dislocation, land use conflicts, loss of agricultural land) are increasingly becoming evident and manifest. This thesis thus examines the dynamics of land use change in the TCK with the aim of building an understanding of the drivers of agricultural land conversions, implications of resulting land use changes, and the related response mechanisms to the changes. The leading question that guided the line of enquiry and discussion is: why is agriculture being squeezed out by non-agricultural land uses in the Nairobi rural-urban fringe? To understand land use dynamics it was necessary to frame landholders and their decision-making environments in ‘situated contexts’. However literature, personal experience and interviews, indicated that forces driving or influencing land conversions interact and operate at varying scales and in an interrelated manner. With this understanding the study adopted an approach that embraced a nested set of scales, an approach that enabled an understanding of the complex local and macro forces and their localized consequences and responses. A case study research that adopted a multiple method qualitative approach and made use of a conceptual framework that borrowed from different theoretical perspectives was adopted. This study, in the main, has indicated that the geography of rural-urban fringe is the outcome of a host of public and private economic, social, cultural, environmental and political forces operating on a variety of scales from the global to the local/human. As a result, a full understanding of the rural-urban fringe and of the problems and prospects for different people and places needs to be grounded in the knowledge of the structural forces and processes that operate on and in combination with contextual factors to condition the geographies of the rural-urban fringe. This study has explored the complexity of geographies of the rural-urban fringe from a social perspective. It has illustrated the significance of macro, micro, local/human forces in creating and recreating the rural-urban fringe environment. The study achieved this by delving into the TCK to examine the diversity of places and actors and the way they affect land development. This study points out that a number of powerful conditions/factors operate at broad scales to determine what is possible at the level of the individual landholder in respect to land use. These forces are leading to land conversions which produce both intended and unintended consequences. These consequences are contributing to change in social, cultural, environmental and economic aspects of the Nairobi rural-urban fringe. Actors (landholders and the residents) are however not passively accepting the fate of being victims of land use changes but instead they are evolving varieties of local/human-level responses (and also developing/recalling subaltern strategies) to enable them to live in the rapidly changing environment. Their varied individual and collective agency is however at times limited or strongly constrained by structural factors and conditions that are beyond their knowledge repertoire or control. This has led to differences in collective and individual responses to the conditions that shape the effects of drivers of land conversions. The differentiated responses are, however also, unintentionally creating conditions for further land conversions, either through making the hitherto unfavourable areas for settlement favourable or creating more obstacles for the continuation of viable agricultural activities. The findings of this thesis point out that the explanation of why agricultural land use is being edged out by non-agricultural uses in the Nairobi fringe is contingent on many factors/conditions, primary of which is population increase through natural growth and in-migration. Population growth thus is a necessary condition for land conversions from agricultural to residential use in the Nairobi fringe. The process that produces population growth is, however, a part of the processes that produces land conversions in the Nairobi fringe. The study argues for redefinition of focus as is embodied in the dichotomous definitions such as rural/urban, legal/illegal, formal/informal to definitions that reflect hybrid characteristics that rural-urban fringes are manifesting. Further implications of the findings on the future research, policy and planning in urban/rural-urban fringe contexts of the developing countries are also enumerated. Areas/aspects in which this thesis was considered weak are identified and future rural-urban fringe research directions are proposed.

year: 2010