Population Dynamics of the Western Australian Soldier Crab Mictyris Occidentalis Unno, 2008 (brachyura, Mictyridae) in the Dampier Archipelago — 30 Years of Observations

Population Dynamics of the Western Australian Soldier Crab Mictyris Occidentalis Unno, 2008... POPULATION DYNAMICS OF THE WESTERN AUSTRALIAN SOLDIER CRAB MICTYRIS OCCIDENTALIS UNNO, 2008 (BRACHYURA, MICTYRIDAE) IN THE DAMPIER ARCHIPELAGO — 30 YEARS OF OBSERVATIONS BY J. UNNO 1,2,3 ) and V. SEMENIUK 2 ) 1 ) School of Natural Sciences, Edith Cowan University, Joondalup, WA 6027, Australia 2 ) V & C Semeniuk Research Group, 21 Glenmere Road, Warwick, WA 6024, Australia ABSTRACT The previously undescribed population dynamics of the Western Australian soldier crab, Mictyris occidentalis Unno, 2008, in King Bay, north-western Australia are elucidated, with annual observa- tions and sampling over a 30-year period from 1980 to 2010. This is the longest recorded study of a single inter-tidal brachyuran population and shows long-term persistence of soldier crab populations in stable, sheltered habitats. The life cycle of M. occidentalis follows a cryptic subsurface juvenile and immature adult ( = adolescent) phase and an emergent adult phase. Population densities were generally 500 crabs/m 2 for the early 1980s, late 1980s, and during the early 2000s. Maximum popu- lation densities were high in the mid 1980s (800 crabs/m 2 ). The spatial and temporal variability in the distribution of the population was consistent over the study period. Juvenile recruitment extends for http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Crustaceana Brill

Population Dynamics of the Western Australian Soldier Crab Mictyris Occidentalis Unno, 2008 (brachyura, Mictyridae) in the Dampier Archipelago — 30 Years of Observations

Crustaceana , Volume 84 (8): 905 – Jan 1, 2011

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Publisher
Brill
Copyright
© 2011 Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0011-216x
eISSN
1568-5403
D.O.I.
10.1163/001121611X572832
Publisher site
See Article on Publisher Site

Abstract

POPULATION DYNAMICS OF THE WESTERN AUSTRALIAN SOLDIER CRAB MICTYRIS OCCIDENTALIS UNNO, 2008 (BRACHYURA, MICTYRIDAE) IN THE DAMPIER ARCHIPELAGO — 30 YEARS OF OBSERVATIONS BY J. UNNO 1,2,3 ) and V. SEMENIUK 2 ) 1 ) School of Natural Sciences, Edith Cowan University, Joondalup, WA 6027, Australia 2 ) V & C Semeniuk Research Group, 21 Glenmere Road, Warwick, WA 6024, Australia ABSTRACT The previously undescribed population dynamics of the Western Australian soldier crab, Mictyris occidentalis Unno, 2008, in King Bay, north-western Australia are elucidated, with annual observa- tions and sampling over a 30-year period from 1980 to 2010. This is the longest recorded study of a single inter-tidal brachyuran population and shows long-term persistence of soldier crab populations in stable, sheltered habitats. The life cycle of M. occidentalis follows a cryptic subsurface juvenile and immature adult ( = adolescent) phase and an emergent adult phase. Population densities were generally 500 crabs/m 2 for the early 1980s, late 1980s, and during the early 2000s. Maximum popu- lation densities were high in the mid 1980s (800 crabs/m 2 ). The spatial and temporal variability in the distribution of the population was consistent over the study period. Juvenile recruitment extends for

Journal

CrustaceanaBrill

Published: Jan 1, 2011

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