Taxonomy and diversity of the deep sea isopods from the abyssal Southeast Pacific (Crustacea, Isopoda, Asellota): a study of environmental impact on the deep sea isopod community, resulting from a large scale physical disturbance experiment in the Peru Basin
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| Main Author: | |
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| Format: | Thesis Book |
| Language: | English |
| Published: |
2000
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| Subjects: | |
| Online Access: | Inhaltsverzeichnis |
| Physical Description: | III, 239 S. Ill., graph. Darst., Kt. : 30 cm |
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| 245 | 1 | 0 | |a Taxonomy and diversity of the deep sea isopods from the abyssal Southeast Pacific (Crustacea, Isopoda, Asellota) |b a study of environmental impact on the deep sea isopod community, resulting from a large scale physical disturbance experiment in the Peru Basin |c Ja-Yang Park |
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Record in the Search Index
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I
CONTENTS
ABSTRACT
1. INTRODUCTION 1
1.1. SHORT HISTORICAL ACCOUNT OF THE DEEP-SEA RESEARCH 2
1.2. GENERAL CHARACTER OF THE DEEP-SEA ENVIRONMENT 4
1.3. THE DEEP-SEA ISOPODS (ASELLOTA, JANIROIDEA) 4
1.3.1. STATE OF RESEARCH 4
1.3.2. DIVERSITY CONCEPTS 5
1.4. THE DISCOL EXPERIMENT 6
1.4.1. AIM AND INITIATIVE OF THE DISCOL PROJECT 6
1.4.2. THE STUDY SITE: DISCOL EXPERIMENTAL AREA (DEA) 7
1.4.3. BOTTOM CURRENTS 8
1.4.4. CHARACTER OF SEDIMENTS 8
1.5. RESEARCH PURPOSE 9
2. MATERIAL AND METHODS 10
2.1. SAMPLING OVERVIEWS 11
2.2. SAMPLE COLLECTION AND PROCESSING 12
2.3. IDENTIFICATION OF THE ISOPODA: TAXONOMIC BASE-LINE STUDY 13
2.4. "
LAYMEN EXPERIMENT": DIVERSITY ESTIMATION BY TAXONOMIC LAYMEN,
DISTINCTION OF SPECIES OF THE FAMILY HAPLONISCIDAE 14
2.5. NUMERICAL AND STATISTIC EVALUATION 15
2.5.1. COMPARISON OF MEAN ABUNDANCES 15
2.5.1.1. ABUNDANCES OF ISOPODS AS A HIGHER TAXON IN ALL EXPEDITIONS 15
2.5.1.2. COMPARISON OF SAMPLES FROM THE CENTRAL AND THE PERIPHERAL AREA
IN THE DEA 16
2.5.1.3. COMPARISON OF SAMPLES IN THE THREE TREATMENTS WITHIN A CRUISE
16
2.5.2. VARIANCE / MEAN RATIO 16
2.5.3. VERTICAL DISTRIBUTION IN SEDIMENTS 17
2.5.4. SPECIES DIVERSITY 17
2.5.4.1. SPECIES SELECTION 17
2.5.4.2. DIVERSITY ESTIMATION 18
3. COMMUNITY OF THE DEEP-SEA ISOPODS 20
3.1. RESULTS OF THE LAYMEN DIVERSITY ESTIMATION 20
3.2. SYSTEMATICS AND TAXONOMY 21
3.2.1. THE FAMILY HAPLONISCIDAE HANSEN, 1916 21
3.2.1.1. DEEP-SEA ISOPODS OF THE FAMILY HAPLONISCIDAE FROM THE PERU
BASIN:
THE STATUS OF THE GENUS HAPLONISCUS RICHARDSON, 1908
(CRUSTACEA; ISOPODA; ASELLOTA) 21
ABSTRACT 22
INTRODUCTION 23
MATERIAL AND METHODS 24
SYSTEMATICS 26
BIBLIOGRAFISCHE INFORMATIONEN
HTTP://D-NB.INFO/960120521
II
SUBDIVISION OF THE FAMILY HAPLONISDDAE HANSEN, 1914 26
GENUS HAPLONISCUS RICHARDSON, 1908 26
CONSIDERATION ON THE CHARACTERS OF THE GENUS
HAPLONISCUS 28
TAXONOMIC SURVEY OF THE GENUS HAPLONISCUS 29
POSTMARSUPIAL DEVELOPMENT IN
HAPLONISCUS ROBINSONI
FROM THE PERU BASIN 48
INTRASPECIFIC VARIATION 81
REDESCRIPTION OF
HAPLONISCUS ROBINSONI MENZIES & TINKER, 1960 56
GENUS CHAULIODONISCUS LINCOLN, 1985 69
TAXONOMIC SURVEY OF THE GENUS CHAULIODONISCUS 70
THE MONOPHYLY OF THE GENERA "
HAPLONISCUS " AND CHAULIODONISCUS 73
DISTRIBUTION 76
ZOOGEOGRAPHY: ENDEMISM 76
DEPTH DESTRIBUTION 78
KEY TO THE SOUTHEASTERN PACIFIC HAPLONISDDAE 78
3.2.1.2. ON THE GENUS
MASTIGONISCUS LINCOLN, 1985: ITS MEMBERS AND
THREE NEW SPEDES FROM THE SOUTHEASTERN TROPICAL PACIFIC OCEAN
(ASELLOTA: HAPLONISDDAE) 84
ABSTRACT 85
INTRODUCTION 85
SYSTEMATICS:
MASTIGONISCUS LINCOLN, 1985 86
CONSIDERATION ON THE GROUND PLAN OF THE GENUS
MASTIGONISCUS 87
DIAGNOSIS OF THE GENUS MASTIGONISCUS 91
COMPOSITION 91
AUTAPOMORPHIES FOR THE GENUS
MASTIGONISCUS 92
KEY TO THE SPEDES OF THE GENUS
MASTIGONISCUS (FOR MALES) 92
TAXONOMY 94
MATERIAL AND METHODS 94
MASTIGONISCUS GRATUS
(MENZIES & GEORGE, 1972) 94
MASTIGONISCUS CONCAVUS
(MENZIES & GEORGE, 1972) 96
MASTIGONISCUS GENERALIS
(MENZIES & GEORGE, 1972) 96
MASTIGONISCUS EKGANS
SP. NOV. 97
MASTIGONISCUS GRATISSIMUS
(MENZIES & GEORGE, 1972) 105
MASTIGONISCUS PLATOVATUS SP. NOV. 112
MASTIGONISCUS STENOCEPHALUS
SP. NOV. 120
MASTIGONISCUS
SP. 127
ZOOGEOGRAPHY 128
3.2.2. THE FAMILY DESMOSOMATIDAE SARS, 1897 132
3.2.2.1. A NEW ISOPOD SPEDES FROM THE ABYSSAL SOUTH PACIFIC OCEAN:
EUGERDA GIGANTEA SP. NOV. (ISOPODA: ASELLOTA: DESMOSOMATIDAE) 133
ABSTRACT *83
INTRODUCTION 183
MATERIAL AND METHODS 183
TAXONOMY: DESCRIPTION OF A BROODING FEMALE 134
DISCUSSION 141
IN
3.2.3. THE FAMILY MACROSTYLIDAE HANSEN, 1916
3.2.3.1. HISTORICAL ACCOUNT
3.2.3.2. GENUS MACROSTYLIS SARS, 1864
3 2.3.3. THE STATUS OF THE FAMILY MACROSTYLIDAE:
CONSIDERATION ON THE CHARACTERS OF THE GENUS
DESMOSTYLIS
3.2.3.4. IDENTIFICATION
3.3. QUANTITATIVE EVALUATION
3.3.1. LIST OF DEEP-SEA ISOPOD SPECIES FROM THE PERU-BASIN (DEA)
3.3.2. ABUNDANCE OF ISOPODA
3.3.2.1. MEAN DENSITIES OF ALL ISOPODS IN EACH EXPERIMENT
3.3.2.2. MEAN DENSITIES OF FIVE MAJOR ISOPOD FAMILIES IN EACH EXPERIMENT
3.3.3. COMPARISON OF MEAN ABUNDANCES IN THE CENTRAL AND THE PERIPHERAL
AREAS OF THE DEA AT THE LEVEL OF FAMILIES AND GENERA OF THE ISOPODA
3.3.4. RELATIVE FREQUENCY OF ISOPODS AT THE FAMILY LEVEL
3.3.5. COMPARISON OF THE SAMPLES BETWEEN UNDISTURBED, DISTURBED AND
REFERENCE AREA AT THE POST-IMPACT PHASE IN DISCOL 3 AND ECOBENT
3.3.5.1. COMPARISON AT THE LEVEL OF FAMILIES
3.3.5.2. COMPARISON AT THE LEVEL OF GENERA
3.3.6. DEPTH DISTRIBUTION IN THE SEDIMENT
3.3.7. VARIANCE / MEAN RATIO
3.3.7.1. AT THE LEVEL OF FAMILIES
3.3.7.2. AT THE LEVEL OF GENERA
3.3.7.3. AT THE SPECIES LEVEL
3.3.8. DIVERSITY OF THE ISOPODA COMMUNITY
3.3.8.1. RELATIONSHIP OF DOMINANCE AMONG SELECTED ISOPODS SPECIES
3.3.8.2. "SPECIES RICHNESS"
3.3.8.3. DIVERSITY IN ISOPODS
4. DISCUSSION
4.1. SAMPLING ARTIFACTS
4.2. PROBLEMS OF IDENTIFICATION
4.3. COMPARISON WITH OTHER MACROFAUNAL INVESTIGATIONS OF THE DISCOL AREA
4.4. COMPOSITION OF THE ISOPOD COMMUNITY IN THE PERU BASIN
4.5. EFFECTS OF THE DISCOL-EXPERIMENTS ON THE ISOPOD FAUNA AND
ENVIRONMENTAL FACTORS OTHER THAN THE EXPERIMENTAL DISTURBANCES
4.6. MODERATE SPECIES DIVERSITY, HIGH INTRASPECIFIC VARIATION
5. SUMMARY
ACKNOWLEDGEMENTS
BIBLIOGRAPHY
APPENDIX
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| spelling | Park, Ja-Yang Verfasser aut Taxonomy and diversity of the deep sea isopods from the abyssal Southeast Pacific (Crustacea, Isopoda, Asellota) a study of environmental impact on the deep sea isopod community, resulting from a large scale physical disturbance experiment in the Peru Basin Ja-Yang Park 2000 III, 239 S. Ill., graph. Darst., Kt. : 30 cm txt rdacontent n rdamedia nc rdacarrier Bielefeld, Univ., Diss., 2000 Asseln (DE-588)4143221-6 gnd rswk-swf Systematik (DE-588)4128136-6 gnd rswk-swf Artenreichtum (DE-588)4131912-6 gnd rswk-swf Peru-Becken (DE-588)4321713-8 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Peru-Becken (DE-588)4321713-8 g Asseln (DE-588)4143221-6 s Artenreichtum (DE-588)4131912-6 s DE-604 Systematik (DE-588)4128136-6 s DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=009223906&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Park, Ja-Yang Taxonomy and diversity of the deep sea isopods from the abyssal Southeast Pacific (Crustacea, Isopoda, Asellota) a study of environmental impact on the deep sea isopod community, resulting from a large scale physical disturbance experiment in the Peru Basin Asseln (DE-588)4143221-6 gnd Systematik (DE-588)4128136-6 gnd Artenreichtum (DE-588)4131912-6 gnd |
| subject_GND | (DE-588)4143221-6 (DE-588)4128136-6 (DE-588)4131912-6 (DE-588)4321713-8 (DE-588)4113937-9 |
| title | Taxonomy and diversity of the deep sea isopods from the abyssal Southeast Pacific (Crustacea, Isopoda, Asellota) a study of environmental impact on the deep sea isopod community, resulting from a large scale physical disturbance experiment in the Peru Basin |
| title_auth | Taxonomy and diversity of the deep sea isopods from the abyssal Southeast Pacific (Crustacea, Isopoda, Asellota) a study of environmental impact on the deep sea isopod community, resulting from a large scale physical disturbance experiment in the Peru Basin |
| title_exact_search | Taxonomy and diversity of the deep sea isopods from the abyssal Southeast Pacific (Crustacea, Isopoda, Asellota) a study of environmental impact on the deep sea isopod community, resulting from a large scale physical disturbance experiment in the Peru Basin |
| title_full | Taxonomy and diversity of the deep sea isopods from the abyssal Southeast Pacific (Crustacea, Isopoda, Asellota) a study of environmental impact on the deep sea isopod community, resulting from a large scale physical disturbance experiment in the Peru Basin Ja-Yang Park |
| title_fullStr | Taxonomy and diversity of the deep sea isopods from the abyssal Southeast Pacific (Crustacea, Isopoda, Asellota) a study of environmental impact on the deep sea isopod community, resulting from a large scale physical disturbance experiment in the Peru Basin Ja-Yang Park |
| title_full_unstemmed | Taxonomy and diversity of the deep sea isopods from the abyssal Southeast Pacific (Crustacea, Isopoda, Asellota) a study of environmental impact on the deep sea isopod community, resulting from a large scale physical disturbance experiment in the Peru Basin Ja-Yang Park |
| title_short | Taxonomy and diversity of the deep sea isopods from the abyssal Southeast Pacific (Crustacea, Isopoda, Asellota) |
| title_sort | taxonomy and diversity of the deep sea isopods from the abyssal southeast pacific crustacea isopoda asellota a study of environmental impact on the deep sea isopod community resulting from a large scale physical disturbance experiment in the peru basin |
| title_sub | a study of environmental impact on the deep sea isopod community, resulting from a large scale physical disturbance experiment in the Peru Basin |
| topic | Asseln (DE-588)4143221-6 gnd Systematik (DE-588)4128136-6 gnd Artenreichtum (DE-588)4131912-6 gnd |
| topic_facet | Asseln Systematik Artenreichtum Peru-Becken Hochschulschrift |
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