TGPC: Greater Wellington letter to Chair, PCTG BOI - Attachment 2

, .iLiterature review of Porirua Harbour and catchmentAppendix 2: Annotated BibliographyResearch paper compares 1995 study with earlier ones. Total population estimated 10have declined from 438-608 million individuals in 1976, to 187-257 million in 1992 andto 146-214 million in 1995, representing slightly more than one third of the 1976population. The 1995 survey recorded a slightly greater abundance of juvenilescompared with the 1992 survey possibly indicating a recoveryGrange, K. R. and T. Crocker (1999). Cockles ill Pondidhoitui' I'llei. results off/Ie 1998 millpli7igprogranti, Ie. Nelson, National Institute of Water and Atmospheric Research. Report prepared forGuardians of Inlet.Fourth cockle survey showing similar pattern of distribution as found previously withgreater densities along the southern shores and increasing densities down the shore. Asignificant difference in the numbers of juvenile cockles at almost all sites with increasesfrom 1992 and 1995 surveys. The increase in juveniles boosted the estimated totalpopulation to around 257 million (up from 180 million in 1995). Note slightly differentsampling method used. Warm winter may have influenced number of youngMonitoring young cockle recruitment is suggested to ascertain whether population isrecovering from decline of past 20 yearsGrange, K. and Tovey, A. (2002). Cockles in Pullamhuiiui litrei. yesulis o1 Ihe 2001 millpli7tgprogroninte. NIWA Client Report NEL02401/2. NUNA, NelsonSummarises results of fifth cockle surveyHaddon, M. and R. G. Wear (1987). Biology offeeding in the New Zealand paddle crab Oval^esCUIha, 'us (Crustacea, Portunidae). New Zealand Jollylidl of Marine und Fitshwttier Reseorch21(I): 55-64.Starvation, satiation and temperature experiments to determine the influences on theappetite of the crab Ovulipes cathayws. Crabs collected from PIimmerion BeachHayward, B. W. , H. R. Grenfell and D. B. Scott (1999). Tidal range of marsh foraminifera fordetermining former sea-level heights in New Zealand. New Zealand lowlyIul of Geology andGeop/Iysics 42: 395-4/3.Present day distribution of forams from marsh environments in the Kaipara, Miranda andPauatahanui estuaries. Describes species assemblages at each tidal level and relativeabundanceHicks, G. RF. 1984 Spatio-temporal dynamics of a mejobenthic copepod and the impact ofpredation disturbance. Journal o1ExperiiiienmlMorine Biology und Ecology 81: pp 47-72Establishes the importance of copepod Painstenhelia litegnrosiruni as a principal preyitem for young postmetamorphic flatfish during their first half year of life. Based onsampling on MariaBankHicks, G. (1985). Biomass and production estimates for an estuarine mejobenthic copepod, withan instantaneous assessment of exploitation by flatfish predators. New Zealand Jouriiul ofEcology 8: 125-127Assessment of biomass and secondary production of copepod (Painsienhefia111egurosirunt) populations in Pauatahanui Inlet and evaluates consequences of fishpredation. Up to generations of young may be produced annually. Predation has littleoverallimpact on abundance of copepod, despite large numbers found in fish gutsReport for Porirua City Council & Wellington City CouncilBlaschke and Rutherford Environmental ConsultantsFebruary 201025