New Zealand Journal of Marine and Freshwater Research 1981 (Vol 15)

• Seasonal occurrence and distribution of flatfish pp.1-13
• Growth of two species of freshwater crayfish (Paranephrops spp.) in New Zealand pp.15-20
• Distribution of quinnat salmon, Oncorhynchus tshawytscha, off the east coast of the South Island, 1925-78 pp.21-24
• Hydrology of Okarito Lagoon and the inferred effects of selective logging in Okarito Forest pp.25-39
• Benthic macroinvertebrates of Lake Taupo pp.41-46
• Age and growth of moki, Latridopsis ciliaris (Teleostei: Latridae) pp.47-49
• Phytoplankton photosynthesis and its relation to standing crop and nutrients in two warm-monomictic South Island lakes pp.51-67
• Prey characteristics and dietary composition in intertidal Astrostole scabra (Echinodermata: Asteroidea) pp.69-80
• Spectra of the fully developed wind-generated ocean wave field west of central New Zealand pp.81-84
• Oxygen consumption and apnoea in the shortfin eel, Anguilla australis schmidtii pp.85-90
• Acute toxicity of increased pH to the freshwater shrimp Paratya curvirostris pp.91-93
• Ecological studies of phytoplankton in the Waikato River and its catchment pp.95-103
• ERRATUM pp.107
• Description of a new species of incubatory oyster from northern New Zealand, with notes on its ecology and reproduction pp.109-119
• Growth of rock lobsters {Jasus edwardsii) in the Gisborne region, New Zealand pp.121-136
• Mercury levels in some New Zealand sea fishes pp.137-146
• Possible functions of surface structure and size in some planktonic eggs of marine fishes pp.147-153
• Morphometric changes, gonad histology, and fecundity estimates in migrating New Zealand freshwater eels {Anguilla spp.) pp.155-170
• Seasonal settlement of shipworms (Bivalvia: Teredinidae) in Tauranga Harbour and Wellington Harbour pp.171-180
• Non-toxic blooms of Prorocentrum micans (Dinophyceae) in the Karamea Bight pp.181-184
• Effects of artificial shading on periphyton and invertebrates in a New Zealand stream pp.185-192
• Relative growth in the New Zealand mud crab Macrophthalmus hirtipes (Brachyura: Ocypodidae) pp.193-200
• Influence of season on growth of the sea urchin Evechinus chlorotlcus pp.201-205
• Limnology of Lake Rerewhakaaitu pp.207-224
• Timing and periodicity of migrating New Zealand freshwater eels (Anguilla spp.) pp.225-235
• Hormone-induced maturation in male New Zealand freshwater eels (Anguilla spp.) pp.237-246
• Evidence for two species of arrow squid in the New Zealand fishery pp.247-253
• Concentration and distribution of mercury in flesh of orange roughy (Hoplostethus atlanticus) pp.255-260
• Egg and larval development of the silver warehou, Seriolella punctata (Pisces: Centrolophidae) pp.261-266
• Spawning migration of moki (Latridopsis ciliaris) off eastern New Zealand pp.267-273
• Abergasilus amplexus Hewitt, 1978 (Ergasilidae: Copepoda) from New Zealand, with a description of the male pp.275-278
• Limnology of Opal Lake pp.279-283
• New records of xenophyophores from the upper slope around New Zealand pp.285-287
• An oceanographic survey of the Tasman Front pp.289-297
• Some hydrological features of the South Fiji Basin pp.299-306
• Low flow water chemistry in forested and pasture catchments, Mawheraiti River, Westland pp.307-320
• Are New Zealand stream ecosystems really different? pp.321-328
• ERRATUM pp.329
• Life history studies on New Zealand Brachyura *5. Larvae of the family Majidae pp.331-383
• A new bathyal myodocopine ostracode from New Zealand and a key to developmental stages of Sarsiellidae pp.385-390
• Records of Paraeuchaeta (Copepoda: Calanoida) from McMurdo Sound, Antarctica, with a description of three hitherto unknown males pp.391-402
• Vertical distribution of New Zealand shipworms (Bivalvia: Teredinidae) pp.403-409
• Density of mud-dwelling meiobenthos from three sites in the Wellington region pp.411-415
• Zonation of inshore benthos off a sewage outfall in Hawke Bay, New Zealand pp.417-435
• Movements of rock lobsters (Jasus edwardsii) tagged near Gisborne, New Zealand pp.437-443
• An improved technique for preparing eel otoliths for aging pp.445-446
• Submerged vegetation of the Rotorua and Waikato lakes *4. Lake Rotoma pp.447-451
• Sedimentation in an artificial lake -Lake Matahina, Bay of Plenty pp.459-473
• Copper and nickel in surface waters of Otago Harbour pp.475-480
• Book review pp.481-484
• ERRATUM pp.485