

@mastersthesis {6891,
	title = {Early life history growth and settlement dynamics of a tropical reef fish ({Gobiidae}: {Bathygobius} coalitus)},
	year = {1998},
	note = {9913964},
	school = {University of Hawai{\textquoteright}i},
	type = {phdPh.{D}.},
	address = {Ann Arbor},
	abstract = {A Hawaiian intertidal population of the basalt go by (Gobiidae: Bathygobius coalitus ) was studied to determine the dynamics and interactions among variable larval growth rates, size and age at settlement juvenile growth rates, and seasonal changes in ambient water temperature. Robust daily periodicity of primary increments in sagittal otoliths, isometric somatic-otolith scaling, and the formation of a settlement mark were validated and used for reconstruction of hatch and settlement dates, mean daily pre- and post-settlement growth rates, size and age at settlement, and individual growth histories during early post-settlement life history of the basalt goby. B. coalitus grew rapidly during the first nine months of life, attaining 55\% of its maximum size of 11.4 cm total length (TL). Mean daily growth rates were not correlated between pre- and post-settlement life stages, but were faster during post-settlement life history. Growth rates were more rapid during warmer sea surface temperatures (SST), increasing by 0.01 mm TL d -1 per {\textdegree}C. Larval durations ranged between 29 and 50 days (mean {\textpm} sd, 36.8 {\textpm} 5.3), and size at settlement ranged between 7.02 and 10.60 min TL (8.36 {\textpm} 0.76 mm TL). Size at settlement increased curvilinearly with larval duration and both decreased during warmer SST. Increases in variation in size within cohorts during post-settlement life history predominately occurred during warm SST, whereas decreases in variability predominately occurred during cool SST. The order of size rankings at settlement was typically preserved through early post-settlement life history, and recruits settling larger than the mean size at a particular age at settlement in a cohort tended to remain larger at age later in life history. Growth rate typically increased to a maximum at 20-30 days post-settlement and was unrelated to size at settlement. Dynamics and interactions among variable growth rates, larval duration, size at settlement and ambient water temperatures may have significant consequences for recruitment, survival to maturity, and the ecology of local, open populations of tropical reef fishes.},
	keywords = {0329:Ecology, 0472:Zoology, Bathygobius coalitus, Biological sciences, Ecology, Life history, Settlement, Tropical reef fish, Zoology},
	url = {http://search.proquest.com/docview/304444118?accountid=14270},
	author = {Shafer, David John}
}
