A comparative study of the external form and skeleton of the calcareous sponges <i>Clathrina coriacea</i> and <i>Clathrina blanca</i> from Santa Catalina Island, California

Johnson, Marion Fischel

doi:10.1139/z78-230

Cited by 12 publications

(24 citation statements)

References 5 publications

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“…Seasonal patterns are common in temperate habitats (Elvin 1976; Osman 1977; Sutherland & Karlson 1977; Sebens 1986). For sponges, seasonal cycles with higher growth rates in winter–early spring (the reverse of what we have found) have been reported by Johnson (1979). In contrast, Ayling (1983) found fluctuations in sponge sizes not related to seasonal or reproductive cycles, and no seasonal pattern of growth has been observed in other Mediterranean species (Pansini & Pronzato 1990).…”

Section: Discussionsupporting

confidence: 81%

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Growth dynamics and mortality of the encrusting sponge Crambe crambe (Poecilosclerida) in contrasting habitats: correlation with population structure and investment in defence

1998

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1. A trade‐off was predicted between investment in defence and growth rate in the encrusting sponge Crambe crambe (Schmidt), while survival rates were expected to correlate positively with the production of defences. Previous studies have demonstrated that this sponge is better defended (chemically and physically) in shaded animal‐dominated habitats than in well‐illuminated habitats, dominated by algae. It was determined whether these habitat‐associated differences in investment correlate with differences in growth, regeneration and mortality rates of small specimens (initial average area less than 100 mm2) of this sponge. 2. In the 2 years of the study the sponge grew slowly (size increased 2·5 times on average), and showed high interindividual variation in growth rates. A seasonal pattern was evident, with marked size increases from May to October. Significantly higher growth rates (on a monthly basis) were found in the well‐illuminated habitat during the second year of study. There was also a negative relationship between monthly growth rate and toxicity (measured in previous studies). No differences were found in sponge regeneration rates between communities. 3. Mortality was significantly higher in individuals from the well‐illuminated habitat, and mainly affected the smallest sponges (< 150 mm2). 4. This sponge was significantly more abundant in the shaded habitat, but the mean size of the sponges was greater in the well‐illuminated habitat. The size distributions in the two communities were also significantly different. Sponges of the smallest size classes were more abundant in the shaded community. 5. It is concluded that sponges in the shaded habitat, in which investment in defence was greatest, featured higher survival but grew more slowly than those in the well‐illuminated habitat. Differential mortality and growth observed in the study were sufficient to explain the patterns of abundance and size distributions of the established sponge populations from these two habitats.

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Section: Discussionsupporting

confidence: 81%

“…The 2‐year monitoring revealed that the growth rate of small specimens of C. crambe was extremely low, especially if compared with that reported for massive demosponges (Dayton 1979) or calcareous sponges (Johnson 1979). Sizes increased on average about 2·5 times in 26 months (Fig.…”

Section: Discussionmentioning

confidence: 74%

Growth dynamics and mortality of the encrusting sponge Crambe crambe (Poecilosclerida) in contrasting habitats: correlation with population structure and investment in defence

1998

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“…Johnson (1979) found for CIathrina coriacea and C. blanca that most vigorous growth of these species occurred at lower habitat temperatures. Similar results have been found for a number of other species (Coe 1932, Coe & Allan 1937, Wells et al 1964.…”

Section: Discussionmentioning

confidence: 83%

On the ecophysiology of the sponge Halichondria panicea in Kiel Bight. I. Substrate specificity, growth and reproduction

Barthel¹

1986

Mar. Ecol. Prog. Ser.

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Between December 1983 and Apnl 1985 field expenments and laboratory observations on Hahchondr~a panicea were performed In the Hausgarten area at Boknis Eck k e l Bight The sponge populahon was sampled regularly by dredging and scuba diving Field growth expenments were conducted at the same hme Phyllophora sp and Phycodrys sp were the preferred substrate algae while Delessena sanguinea and fllamentous f~n e algae served as substrate only occas~onally

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“…True diactinal spicules with two rays in different Note that the rays are not in the same plane (SEM) (x600) (Johnson, 1978a). (Courtesy Dr. M. Fischel Johnson.…”

Section: Calcareous Deposits: Morphology Chemistry Distributionmentioning

confidence: 99%

The Cell Biology of Sponges

Simpson

1984

690

604

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PrefaceThe writing of this work was stimulated by discussions with colleagues in the fields of biochemistry, developmental biology, and physiology who expressed their, and other's, need for a current, critical review and analysis of sponge cell biology, and secondly by my own conviction that the field of sponge biology in general could benefit from such a synthesis and evaluation of the data. The major problem faced in writing this book was that of balancing the text relative to presenting, on the one hand, a review of the data and, on the other hand, a synthesis of it. A vigorous attempt has been made to be as uniform as possible in reviewing data but this, of course, is not always possible because some papers stand out as key advances in one or more areas. To the extent that it has been feasible to synthesize specific perspectives or to emphasize deficiencies in knowledge, these have been done. A major effort is made to review cellular structure per se since this has not previously been attempted. Some speculations are also to be found and these, hopefully, will not only stimulate new investigations but will also serve as respites from the unavoidable rigidity of data review. Much effort has been expended to avoid errors, although it is probably not possible in an undertaking of this scope to finally arrive at an error-free state. For such of those that do occur by omission or otherwise, I take full and sole responsibility.There are a number of important, recent monographs and symposial volumes which contain much information on sponge cell biology as well as other topics. Outstanding among them is Biologie des Spongiaires (C. Levi and N. Boury-Esnault, Eds., 1979. Editions de CNRS, Paris).

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A comparative study of the external form and skeleton of the calcareous sponges Clathrina coriacea and Clathrina blanca from Santa Catalina Island, California

Cited by 12 publications

References 5 publications

Growth dynamics and mortality of the encrusting sponge Crambe crambe (Poecilosclerida) in contrasting habitats: correlation with population structure and investment in defence

Growth dynamics and mortality of the encrusting sponge Crambe crambe (Poecilosclerida) in contrasting habitats: correlation with population structure and investment in defence

On the ecophysiology of the sponge Halichondria panicea in Kiel Bight. I. Substrate specificity, growth and reproduction

The Cell Biology of Sponges

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