51813_Sturgeon biodioversity an.PDF

†Protopsephurus

biogeography 174

branchiostegal number 58

Jurassic paddlefish 28, 32

morphological characters 53-54, 58

systematics 36, 39, 53- 54

morphological characters 115
systematic relationships 39
†Protoscaphirhynchus squamosus
phylogenetic analysis 45
systematics 45
protractor hyomandibularis muscle 59
Psephurus gladius (Chinese paddlefish) 26,

†Protoscaphirhynchus 28

36 - 37, 246, 253, 433

artificial reproduction 267

conservationefforts 267 - 268

morphological characters 78, 86,

91 - 93, 95, 99, 102-103, 105, 114,

116

natural history 177, 247

phylogenetics 119

status 247

systematics 39

inthe Yangtze River 246- 247

Pseudoscaphirhynchus 74

and Aral Sea drying 429

benthic adaptation 123

biogeography 180

morphological characters 81, 86-87,

osteological methods 76

peramorphyin 123

potamodromy 177

systematics 39,43-44, 117, 147

(Syr-Dar shovelnose sturgeon) 26,373,

382

90, 101, 107, 112- 116

status 381- 383

Pseudoscaphirhynchus fedtschenkoi

morphotypes 77

status 44, 373, 382

Pseudoscaphirhynchus hermanni (small

Amu-Dar shovelnose sturgeon)

description 381- 382

distribution 382

extinction of 373

status 44,382

Pseudoscaphirhynchus kaufmanni (large

Amu-Dar shovelnose sturgeon)

artificial propagation 378

natural history 376-377, 381

† status 44,373,376,381
Pteronisculus,morphological characters 86
PyasinaRiver,Acipenser baerii in 224
quadratojugal bone 47, 53
Quebec,Acipenser fulvescens in305,308
races, winter and vernal 18, 178
ram ventilation, and filter feeding 60- 61
rangesee biogeography; distribution also
regulations, of fisheries, see under fishery
reproduction 265
inAcipenser baerii 227 - 228

under natural history inindividual taxa

inAcipenser brevirostrum 324 - 327,

inAcipenser oxyrinchus 354, 355

inAcipenser schrenckii 236,250- 251

inAcipensersinensis 250 - 25 1

inAcipenser sturio 364 - 365, 367

inAcipenser transmontanus 265 - 276

in Acipenseridae 408- 409

inthe Amur River 235 - 236,250- 251

and eggs-per-recruit (EPR) 400- 401

and fishing mortality 400- 403

inHusodauricus 235

inPsephurus gladius 247

inPseudoscaphirhynchuskaufmanni

377

inScaphirhynchw platorynchus

293 - 293

threatsto 429

in the Yangtze River 247, 250- 252

see alsoartificial reproduction; spawning

respiration

352 - 353

adaptation for feeding 120- 121

evolution of 59- 61

respiratory shunt 120

restockingseestocking

restorationseestockingor under individual

RFLP (restriction fragment length

inAcipenser fulvescens 390

inAcipenser oxyrinchus336, 393- 394

inAcipenser transmontanus 390

inmtDNA analysis 389-391, 393- 394

and stock identification 391

Rioni River, Acipenser sturio in359, 365

Romania, sturgeon fishery 203

rostral bones 49,52-53,99, 101, 107

taxa

polymorphism)

seealsoborder rostral bones; dorsal

rostral shield; ventral rostral bone

rostral canal shape 53,55,85- 86

rostrum expansion 52, 120- 121

benthic adaptation and 119

Russian sturgeon seeAcipenser

Saint John River

gueldenstaedtii

Acipenser brevirostrum in 322,

Acipenser oxyrinchus in 340

Sakhalin sturgeonseeAcipenser mikadoi

324-325,331

salinity

inthe Black Sea 205

inthe Caspian Sea 216

andHuso dauricus 234

toleranceinAcipenseridae 408

Acipenser brevirostumin 323 - 324

Santee-Cooper River

† dams 323-324,329

Saurichthys 33

morphological characters 51

relationship to Acipenseriformes 34

Acipenser brevirostumin 322-324,

330

dams 340

Savannah River

scalation 51, 121

benthic adaptation 119, 121

scales 47, 78

Scaphirhynchinae, phylogeny 128

Scaphirhynchini

benthic adaptation 119-120, 122

biogeography 63, 169, 180

morphological characters 52, 83, 91,

phylogeny 118, 128

potamodromy 177

systematics 44

benthic adaptation 119- 123

biogeography 180

distribution 292- 293

genetics 388- 389

habitat 45

locomotion, adaptations 121

inthe Missouri River 389

morphological characters 48, 78, 81,

93, 95 - 96, 99, 103, 105, 107

Scaphirhynchus 74

86 - 87, 89-90, 101, 107, 113,

115 - 116

osteological methods 76

potamodromy 177

status 395

systematics 26, 39, 44, 117, 147

taxonomy 388,395

variation in 29,395

Scaphirhynchus albus, status 45,388,412,

Scaphirhynchus platorynchus (shovelnose

sturgeon) 45, 290, 292-296, 412

Scaphirhynchus suttkusi(Alabama

shovelnose sturgeon) 45, 292, 387-388,

412, 418- 419

420 - 421

scapulocoracoid bone 74.78, 87, 89, 116

sea level, of the Caspian Sea 214,216

Sea of Azov, Acipenserspp. in 158

Sea of Japan,Acipenser mikadoiin 159

sensory systems, evolution of 63- 64

scutes 54, 77- 78

seealsoampullary organs; barbels;

visual systems

shortnose sturgeon see Acipenser

shoulder girdle denticles 50

Siberian sturgeon see Acipenser baerii

skeletonseeosteology

skull expansionseerostrum expansion

Soviet Union (former)regional faunas 28

spawning 169, 178-179, 408-409

brevirostrum

Acipenser brevirostrum 324 - 326,

Acipenser dabryanus 261 - 262

Acipenser gueldenstaedtii 214

Acipensernudiventris 378

Acipenser oxyrinchus 336-337, 354

Acipenser schrenckii 236

Acipenser sinensis 25 1- 252

Acipenser stellatus 196, 213

Acipenser sturio 361, 364

inthe Amur River 234-236, 245

inthe Caspian Sea 214, 216

328 - 331, 350, 352