The Open Sea: Its Natural History, Parts 1-2Houghton Mifflin, 1965 - Fisheries |
From inside the book
Results 1-3 of 58
Page 7
... tow - net to collect plankton from the sea off Cork as early as 1828. It was there that he first described the zoëa , the young planktonic stage of the crab . A little later , 1833 , he discovered the true nature of the barnacles and so ...
... tow - net to collect plankton from the sea off Cork as early as 1828. It was there that he first described the zoëa , the young planktonic stage of the crab . A little later , 1833 , he discovered the true nature of the barnacles and so ...
Page 38
... net . age , derived from that originally trapped from the sunlight by the tiny planktonic plants in the seas of long ... tow - net and line with which to collect the plankton from a rowing boat or any larger vessel that can be made to go ...
... net . age , derived from that originally trapped from the sunlight by the tiny planktonic plants in the seas of long ... tow - net and line with which to collect the plankton from a rowing boat or any larger vessel that can be made to go ...
Page 39
Sir Alister Clavering Hardy. tow - net is shown in Fig . 12 opposite . For ordinary collecting purposes a hoop of 18 inches diameter will be quite sufficient . The net is best made of the silk ' bolting cloth ' used by millers for ...
Sir Alister Clavering Hardy. tow - net is shown in Fig . 12 opposite . For ordinary collecting purposes a hoop of 18 inches diameter will be quite sufficient . The net is best made of the silk ' bolting cloth ' used by millers for ...
Contents
INTRODUCTION I | 1 |
THE MOVEMENT OF THE WATERS | 13 |
PLANTS OF THE PLANKTON | 36 |
76 other sections not shown
Common terms and phrases
adult amphipods appear Atlantic basking shark bathypelagic biol body bottom bottom-living British Calanus catch caught cells Channel chapter ciliated coast colour copepods crustacea ctenophores currents decapod depths diatoms Discovery II drawn drifting eggs eyes feeding fins fishery floating Garstang give haul hydroid inches jelly-fish Laboratory large numbers larger larva layers light living Lowestoft luminous mackerel marine medusae metres mouth natural history naturalist nets North Sea ocean organs pelagic photographs photophores phytoplankton plaice plankton plankton animals plants Pleurobrachia Plymouth polyp prawn prey R.R.S. Discovery records remarkable round Sagitta samples Scotland Scottish sea-bed seen shark shell shoals shown in Fig shown in Plate shows side Siphonophores sketch smaller southern North Sea spawning species specimens squids stages surface swimming tail taken tentacles tow-net trawl trawlers trochophore typical usually Velella vertical migration whales worms young fish zoea zooplankton