New Zealand Journal of Marine and Freshwater Research 1989 (Vol 23)

• Diet of two species of freshwater eel (Anguilla spp.) in Lake Pounui, New Zealand pp.1-10
• Effects of a severe flood on instream habitat and trout populations in seven New Zealand rivers pp.11-17
• Aspects of the reproductive biology of torrentfish, Cheimarrichthys fosteri, in two braided rivers of Canterbury, New Zealand pp.19-25
• Regional variation in electromorph frequencies in the tuatua, Paphies subtriangulata, around New Zealand pp.27-33
• Utility of relationships between lake phosphorus and chlorophyll a as predictive tools in eutrophication control studies pp.35-41
• Occurrence of the puerulus stage of the rock lobster, Jasus edwardsii at the New Plymouth Power Station, New Zealand pp.43-50
• Larvae of the incubatory oyster Tiostrea chilensis (Bivalvia: Ostreidae) in the plankton of central and southern New Zealand pp.51-60
• Occurrence of hoki (Macruronus novaezelandiae) eggs and larvae in eastern Cook Strait pp.61-67
• Picophytoplankton in the Hauraki Gulf, New Zealand pp.69-78
• Underwater light and photosynthesis at three sites in Pelorus Sound, New Zealand pp.79-91
• Yield- and egg-per-recruit analyses for the New Zealand rock lobster, Jasus edwardsii pp.93-103
• Movements and possible stock relationships of the New Zealand barracouta, Thrysites atun, from tag returns pp.105-111
• Commercial catch composition and reproductive biology of rig (Mustelus lenticulatus) from Pegasus Bay, Canterbury, New Zealand pp.113-120
• Mineralogy and geochemistry of sediments from Lakes Taupo and Waikaremoana, New Zealand pp.121-130
• Sensitivity of four New Zealand cladoceran species and Daphnia magna to aquatic toxicants pp.131-137
• Riparian pasture retirement effects on sediment, phosphorus, and nitrogen in channellised surface run-off from pastures pp.139-146
• Book reviews pp.147-147
• Prey selection by Galaxias vulgaris in the Hawkins River, New Zealand pp.153-161
• Social interactions between 0+ brown and rainbow trout in experimental stream troughs pp.163-170
• Fish distribution patterns and their association with environmental factors in the Mokau River catchment, New Zealand pp.171-180
• Swimming performances of some native freshwater fishes pp.181-187
• Barotropic and baroclinic waves in Lake Taupo pp.189-194
• Distribution, body size, and brood characteristics of four species of mysids (Crustacea: Peracarida) in the Avon-Heathcote Estuary, New Zealand pp.195-199
• Re-assessment of the status of southern elephant seals (Mirounga leonina) in New Zealand pp.201-213
• Timing of locomotor activity in the New Zealand rock lobster, Jasus edwardsii pp.201-213
• Acoustic measurements of the population of orange roughy (Hoplostethus atlanticus) on the north Chatham Rise, New Zealand, in winter 1986 pp.225-237
• Exploitation rates of rig (Mustelus lenticulatus) around the South Island of New Zealand pp.239-245
• New occurrences of manganese nodules in the South-western Pacific Basin, east of New Zealand pp.247-253
• Surficial sediment-heavy metal associations in the Avon-Heathcote Estuary, New Zealand pp.255-262
• Biomonitoring of organic pollution using periphyton, South Branch, Canterbury, New Zealand pp.263-274
• Effects of septic tank effluent on chemical quality of alluvial gravel aquifers pp.275-286
• Tributyl tin levels for sea water, sediment, and selected marine species in coastal Northland and Auckland, New Zealand pp.287-294
• Benthos associated with two New Zealand coastal outfalls pp.295-309
• Freshwater life history of Chinook salmon (Oncorhynchus tshawytscha) in the Rangitata River catchment, New Zealand pp.311-319
• Comparison between a fine mesh trap net and five other fishing gears for sampling shallow-lake fish communities in New Zealand (Note) pp.321-324
• Laboratory culture of Galaxias maculatus and potential applications pp.325-336
• Potential use of oxygen and carbon isotopic composition of otoliths to identify migratory and non-migratory stocks of the New Zealand common smelt: a pilot study pp.337-344
• Characteristics of common smelt, Retropinna retropinna (Richardson), of the Waikato River system pp.345-355
• Nature and quantity of net-seston exported from Lake Taupo to the Waikato River, New Zealand pp.357-372
• Effects of bleached kraft mill effluent on macroinvertebrate and fish populations in weedbeds in a New Zealand hydro-electric lake pp.373-379
• Hypolimnetic oxygen consumption in Lake Taupo, New Zealand: a preliminary assessment pp.381-391
• Distribution of carbon, nitrogen, and phosphorus in Lake Taupo surface sediment pp.393-399
• Modelling the upper limit to oceanic phytoplankton production as a function of latitude in the New Zealand Exclusive Economic Zone pp.401-410
• Hydrology and near-surface nutrient distribution along the South Otago continental shelf, New Zealand, in summer and winter 1986 pp.411-420
• A numerical model investigation of the residual circulation in Hauraki Gulf, New Zealand pp.421-442
• Aspects of the biology and taxonomy of Fiona exigua Viets, a predatory freshwater mite pp.443-448
• Book reviews pp.449-452
• Diets of alpine galaxias (Galaxias paucispondylus Stokell) and longjawed galaxias (G. prognathus Stokell) in a South Island,, New Zealand, high-country stream pp.453-458
• Age, growth, and condition of freshwater eels {Anguilla sp.) in backwaters of the lower Waikato River, New Zealand pp.459-465
• Macroinvertebrate colonisation of perspex artificial substrates for use in biomonitoring studies pp.467-478
• Impacts of wetland afforestation on the distribution of benthic invertebrates in acid streams of Westland, New Zealand pp.479-490
• Nitrogen assimilation by three size fractions of the winter phytoplankton off Westland, New Zealand pp.491-505
• Role of zooplankton in the nitrogen cycle off the west coast of the South Island, New Zealand, winter 1987 pp.507-518
• Puerulus and juvenile abundance in the rock lobster Jasus edwardsii at Stewart Island, New Zealand (Note) pp.519-523
• Size-fecundity relationships in the smooth oreo, Pseudocyttus maculatus, and the black oreo, Allocyttus niger (Pisces: Oreosomatidae) (Note) pp.525-527
• Survey of human pathogenic bacteria and viruses in cockle beds at Otakou, Otago Harbour, New Zealand pp.529-532
• Environmental monitoring of trace element concentrations in volcanogenic sediments, North Taranaki, New Zealand pp.533-556
• Two new species of the marine genus Limnodriloides and a record of Tubificoides /iraser/Brinkhurst (Oligochaeta: Tubificidae) from New Zealand pp.557-561
• Field evaluation of fluorescent whitening agents and sodium tripolyphosphate as indicators of septic tank contamination in domestic wells pp.563-568
• Effluent characteristics of dairy shed oxidation ponds and their potential impacts on rivers pp.569-584
• Effluent characteristics of domestic sewage oxidation ponds and their potential impacts on rivers pp.585-600
• Letter to the editor pp.601-606
• Book reviews pp.601-606