Orchestia
National Institutes of Health
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An adequate description of growth in Crustacea depends on determining both the frequency of moulting and the linear or weight…
........................................................................................................................................ 2 ACKNOWLEDGEMENT ....................................................................................................................... 3 TABLE OF CONTENTS ......................................................................................................................... 5 Chapter 1 –INTRODUCTION AND AIMS .............................................................................................. 6 Chapter 2 – SYSTEMATICS AND ECOLOGY ........................................................................................ 10 Amphipod Anatomy..................................................................................................................... 10 Amphipod Systematics ................................................................................................................ 11 Beachflea Ecology –based on O. gammarellus and P. platensis .................................................... 15 Habitat and Dispersal................................................................................................................... 16 Chapter 3 – SPECIES CHARACTERISTICS............................................................................................ 19 Species Descriptions .................................................................................................................... 20 Orchestia gammarellus Pallas, 1766 ......................................................................................... 20 Platorchestia platensis KrØyer, 1845 ........................................................................................ 24 Species Comparison ..................................................................................................................... 28 Chapter 4 –SPECIES DISTRIBUTION .................................................................................................. 31 Global Distribution ...................................................................................................................... 31 South African Distribution Historical and Current....................................................................... 34 Orchestia gammarellus ............................................................................................................ 34 Platorchestia platensis ............................................................................................................. 35 Chapter 5 – RECOMMENDED FUTURE STUDIES ................................................................................ 38 REFERENCES .................................................................................................................................... 39 Appendix A TABLES........................................................................................................................ 45 Appendix B – MAPS ......................................................................................................................... 47 Search Areas and Sample Collection Sights .................................................................................. 47 Sample Locations Orchestia gammarellus .............................................................................. 48 Sample Locations Orchestia gammarellus & Platorchestia platensis ....................................... 49 Sample Locations Platorchestia platensis ............................................................................... 49 Negative Search Areas for Non-native Beachfleas – Native Samples Recorded ......................... 52
Talitrids are semiterrestrial crustacean amphipods inhabiting sandy and rocky beaches; they generally show limited active…
Orchestia stocki n. sp. from Gran Canaria is described. It is similar to Orchestia canariensis Dahl, 1950 but differs in…
Amphipods of the family Talitridae form an important part of the cryptozoa of Tasmanian forests .. The terrestrial amphipod fauna…
The authors point out the ecological conditions required for the life-cycle development of Maritrema misenensis (A. Palombi, 1940…
The daily locomotory activity ofOrchestia platensis (Kröyer) was recorded in situ and under constant conditions in the laboratory…
Zusammenfassung1.Die Darstellung der bulgarischen Strandfauna fusst auf syn\:okologischen Untersuchungen des Verf. 1939–1941 im…