398
SUBJECT INDEX
Eyes of chaetognat,hs-continued
fimct,ions, 274
photo-receiving cells, 273
strrrct>rire of, 273
F
Facics, of maugals, 91, 118
“Farming the sea”, 54
Female reprodnct,ive apparatus of
chaet,ognaths,
activit)y cycles of, 347
of Eukrohnia, 308--309
of f’terosagitta, 305- 308
of Sagitta, 293-300
of Spadella, 300-305
origiii of, 319
Ferns, 237
Fertilization, in chaetognaths, 335
in Eukrohnia bathyantarctica, 333,334
in p-lagic chaetognaths, 334
in Sngitta, 329-333
in Spadella cephaloptem, 322-329
Filariases, mosquito carriers of, 151
Fins, of chaetognaths, 178
amorphous substarice in, 277
anterior, 279
caudal, 277
form of, 278
lateral, 276, 277
position of, 278
posterior, 279
rays of, 278
regeneration of, 353
Fireflies, synchronous flashing of, 161164
frequency, 164
optimum density for, 163
questions concerning, 163
rhythms of, 162
temperature control of, 164
depletion of resources of, 7-16
in mangrove areas, 122
percentage of t,ot,al animal protein
pond culture of, 238-240
underfished stocks of, 23
unexploited, 15
world production of, 1
Fish
intake, 2
Fish meal, 2
Fish ponds
cycle of production in, 238-239
green manuring of, 239
harvesting of crop, 239
making of, 238
of Java, 238
prawns in, 217, 240
protein production, 239
tidal canal system, 238
yields, 239, 240
complex, 25
international, 30
national, 30
for part#icular regions, 39
for research, 41
for sea fisheries, 39
list of international, 62-71
to formulate conservation measures,
Fisheries
Fishery bodies, specialized, 39, 40
41
Fishery management
aim of, 6
bodies concerned with, 62-71
effects of wrong, 16
international, 53
lack of basic data for, 52
mechanics of, 34-45
national approach to, 34
need for, 15
need for scientific knowledge, 51
objectives, 22, 23, 25
prospects for future progress in, 45
requirements for full, 50, 52
stock and recruitment, 19
assessing effect of, 51
effectiveness of various methods, 25
enforcement, 26
fixing maximum catch, 44
methods, 25-34
types of, 25
with several species, 32
effect on stock of changes in, 7
group quotas for, 29, 31
interaction of catches, 24
limitation of amount of, 29-34, 43
measurement of catch, 31
Fishery regulation
.Fishing
SUBJECT INDEX
Eyes of chaetognat,hs-continued
fimct,ions, 274
photo-receiving cells, 273
strrrct>rire of, 273
F
Facics, of maugals, 91, 118
“Farming the sea”, 54
Female reprodnct,ive apparatus of
chaet,ognaths,
activit)y cycles of, 347
of Eukrohnia, 308--309
of f’terosagitta, 305- 308
of Sagitta, 293-300
of Spadella, 300-305
origiii of, 319
Ferns, 237
Fertilization, in chaetognaths, 335
in Eukrohnia bathyantarctica, 333,334
in p-lagic chaetognaths, 334
in Sngitta, 329-333
in Spadella cephaloptem, 322-329
Filariases, mosquito carriers of, 151
Fins, of chaetognaths, 178
amorphous substarice in, 277
anterior, 279
caudal, 277
form of, 278
lateral, 276, 277
position of, 278
posterior, 279
rays of, 278
regeneration of, 353
Fireflies, synchronous flashing of, 161164
frequency, 164
optimum density for, 163
questions concerning, 163
rhythms of, 162
temperature control of, 164
depletion of resources of, 7-16
in mangrove areas, 122
percentage of t,ot,al animal protein
pond culture of, 238-240
underfished stocks of, 23
unexploited, 15
world production of, 1
Fish
intake, 2
Fish meal, 2
Fish ponds
cycle of production in, 238-239
green manuring of, 239
harvesting of crop, 239
making of, 238
of Java, 238
prawns in, 217, 240
protein production, 239
tidal canal system, 238
yields, 239, 240
complex, 25
international, 30
national, 30
for part#icular regions, 39
for research, 41
for sea fisheries, 39
list of international, 62-71
to formulate conservation measures,
Fisheries
Fishery bodies, specialized, 39, 40
41
Fishery management
aim of, 6
bodies concerned with, 62-71
effects of wrong, 16
international, 53
lack of basic data for, 52
mechanics of, 34-45
national approach to, 34
need for, 15
need for scientific knowledge, 51
objectives, 22, 23, 25
prospects for future progress in, 45
requirements for full, 50, 52
stock and recruitment, 19
assessing effect of, 51
effectiveness of various methods, 25
enforcement, 26
fixing maximum catch, 44
methods, 25-34
types of, 25
with several species, 32
effect on stock of changes in, 7
group quotas for, 29, 31
interaction of catches, 24
limitation of amount of, 29-34, 43
measurement of catch, 31
Fishery regulation
.Fishing