The ecology of deep and The ecology of deep and shallow coral reefs : results of a workshop on coral reef ecology held by the American Society of Zoologists, Philadelphia, Pennsylvania, December 1983 . ecologyofdeepsha00work Year: 1983 the re This w mass r occurr The and se or mi n specie presen At algal Algal c r u i t as al emove ed on fila veral i m a 1 . s (Ch t onl this s p e c i Prima ment so a d by the ment blu Pen ampi of th ccompa micro se pi a ous sp e-gree nate d a parv e g n i e -he tes eci ns i at ul a Pro treatm per ch betwee d u c t i ents 1 orop n gra y on time es o ry P these
The ecology of deep and The ecology of deep and shallow coral reefs : results of a workshop on coral reef ecology held by the American Society of Zoologists, Philadelphia, Pennsylvania, December 1983 . ecologyofdeepsha00work Year: 1983 the re This w mass r occurr The and se or mi n specie presen At algal Algal c r u i t as al emove ed on fila veral i m a 1 . s (Ch t onl this s p e c i Prima ment so a d by the ment blu Pen ampi of th ccompa micro se pi a ous sp e-gree nate d a parv e g n i e -he tes eci ns i at ul a Pro treatm per ch betwee d u c t i ents 1 orop n gra y on time es o ry P these there c c u r r i roduct Pi ap ng i on astropod C e r i t h i u m 1i tt d by an increase in the rbivores (Table 1). Sma es Herposiphonia secund dominated plates where oms were also abundant. , Cerami um ni tens and L a tes. pears under eratum onto the plates amount of algal bio- 11 filaments also a_, G i f f o r d i a r a 11 s i a e herbivory was absent Several 1arger algal aurenci a obtusa) were to be no clear pa each type of graz on p (Fig hyll zing er utii ure 2 ) a wei r e g i m t a . W ght es. rea was not significant hen expressed per unit , productivity rates va A consistent pattern o ttern in the number of i n g regime. ly different between algal weight or r i e d widely f higher specific .C I O Month Month Month Figure 2. Mean net community primary production + 95%%%%%%%% confidence limits; A) per area, B) per unit algal weight, and C) per unit chl. a weight. (X)- all herbivore treatment. (â¡)- group 1 and 3 treat- ment, (a)- group 2 and 3 treatment. (â )- group 3 only treatment. (â¢)- no grazing treatment. J, J, and A on the x axis indicate June, July, and August. Plates were submerged initially in December, 1981, and these data were collected during the summer of 1983. production rates in urchin grazed treatments (all herbivore treatment and urchin only treatment) than in fish grazed, micro-herbivore grazed and non-grazed treatments, was maintained. Net
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