Absorption efficiencies of Lytechinus variegatus (Lamarck) (Echinodermata: Echinoidea) for selected marine plants

Lowe, Edgar F.; Lawrence, John M.

doi:10.1016/0022-0981(76)90117-9

Cited by 86 publications

(44 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Multiple regression analyses suggest that growth is best explained by the quantity of proteins ingested than by the other variables. This is in agreement with the results of Lilly (1975) and Lowe & Lawrence (1976), who also observed that the amount of protein ingested best defines growth. Conversely, Frantzis (1992) thought that the growth of Paracentrotus lividus was best explained by the quantity of organic matter absorbed.…”

Section: Effect Of Food Provided On Nutritionsupporting

confidence: 93%

“…Although the results of the present study concern only 3 food types, the data generated seem to be more in agreement with the second theory, with an increase in ingestion rates when protein levels in the food are low (with protein levels being an indication of food quality). The same results have been obtained in other studies (Miller & Mann 1973, Lowe & Lawrence 1976, Frantzis & Grémare 1992. In the present study, it should be noted that the increase in ingestion levels (in terms of weight) observed for individuals fed vegetable food does not compensate for the low protein content of this food type.…”

Section: Effect Of Food Provided On Nutritionsupporting

confidence: 92%

See 1 more Smart Citation

Nutrition of the sea urchin Paracentrotus lividus (Echinodermata: Echinoidea) fed different artificial food

Fernandez¹,

Boudouresque²

2000

Mar. Ecol. Prog. Ser.

121

View full text Add to dashboard Cite

Nutrition and growth of 3 size classes of Paracentrotus lividus fed different artificial diets were studied at monthly intervals over 9 mo. At the end of the experiment, the gonadal, test and gut growth rates were estimated so as to establish nutritional budgets. Three types of food were provided: 'vegetable-feed' (low protein, high carbohydrate), 'mixed-feed' (intermediate protein and carbohydrate) or 'animal-feed' (high protein, low carbohydrate). Nutritional parameters were affected by food quality, sea urchin size and experimental period. The highest ingestion rate was obtained with the vegetable food. The highest absorption value was recorded with the animal food while the lowest was observed for the vegetable food. Absorption was negatively correlated to both ingestion rate and carbohydrate levels of the food. The assimilation efficiency was lowest with the vegetable diet and highest with the animal-based feed. Allocation of energy amongst the different body organs was influenced by food quality and sea urchin size. A growth model based on the results shows that sea urchin growth can be explained by 4 factors: the quantity of food ingested; the amount of food absorbed; the size of the individuals; and the quantity of dry matter absorbed.

show abstract

Section: Effect Of Food Provided On Nutritionsupporting

confidence: 93%

Section: Effect Of Food Provided On Nutritionsupporting

confidence: 92%

Nutrition of the sea urchin Paracentrotus lividus (Echinodermata: Echinoidea) fed different artificial food

Fernandez¹,

Boudouresque²

2000

Mar. Ecol. Prog. Ser.

121

View full text Add to dashboard Cite

show abstract

“…The sea urchin L. variegatus is a generalist grazer of algae (LOWE;LAWRENCE, 1976;VADAS et al, 1982;GREENWAY, 1995;BEDDINGFIELD;MCCLINTOCK, 1999), and occasionally of animals (LOWE; LAWRENCE, 1976). For example, in central Florida this urchin can primarily consume macroflora, except in periods when abundance of algae is extremely limited (COBB; LAWRENCE, 2005).…”

Section: Discussionmentioning

confidence: 99%

Feeding preference of the sea urchin Lytechinus variegatus (Lamarck, 1816) on seaweeds

2008

View full text Add to dashboard Cite

A B S T R A C TSeaweeds exhibit different strategies to minimize the damage caused by herbivores and also to influence the feeding preference of these consumers. This study evaluated the feeding preference of the sea urchin Lytechinus variegatus through multiple-choice experiments using the seaweeds Caulerpa racemosa, Dictyota menstrualis, Osmundaria obtusiloba, Plocamium brasiliense, Sargassum sp., and Ulva sp. In order to verify the importance of morphological and chemical aspects on this feeding preference, two assay-types were carried out using live and powdered macroalgae, respectively. Two different methods were employed to analyze the results obtained: comparison between biomass losses versus autogenic changes, and inclusion of autogenic values in biomass loss through herbivory. In both experiments a clear differential consumption of certain species of seaweeds by L. variegatus was observed, in the following decreasing order of preference: R E S U M OAs macroalgas apresentam diversos tipos de estratégias para minimizar os danos gerados por herbívoros que influenciam a preferência alimentar dos consumidores. Este estudo avaliou a preferência alimentar do ouriço-do-mar Lytechinus variegatus em experimentos de múltipla escolha utilizando as macroalgas bentônicas Caulerpa racemosa, Dictyota menstrualis, Osmundaria obtusiloba, Plocamium brasiliense, Sargassum sp., e Ulva sp. Para verificar a importância dos aspectos morfológicos e químicos na preferência, os ensaios foram realizados com algas vivas e em pó, respectivamente. Foram utilizados dois métodos distintos de análise de dados: comparação entre a perda de biomassa e as mudanças por autogenia, e a incorporação dos valores de autogenia à perda de biomassa por herbivoria. Em ambos os experimentos observou-se uma clara preferência de L. variegatus por certas espécies de macroalgas em relação a outras, em ordem decrescente de preferência: C. racemosa ≈ Ulva sp. > O. obtusiloba ≈ Sargassum sp. > P. brasiliense > D. menstrualis. Além disso, constatou-se que os dois métodos de análise produziram resultados muito similares. De acordo com os resultados, a preferência alimentar de L. variegatus é provavelmente condicionada pela química defensiva produzida por P. brasiliense e D. menstrualis e aspectos morfológicos presentes em C. racemosa, Ulva sp., O. obtusiloba e Sargassum sp.

show abstract

“…For instance, Caulerpa spp. were avoided by the surgeonfish Zebrasoma flavescens (C. prolifera, C. racemosa, Caulerpa serrulata, C. sertularioides; Wylie and Paul, 1988) and the sea urchins Paracentrotus lividus (Caulerpa taxifolia; Lemee et al, 1996), and Lytechinus variegatus (C. prolifera, Lowe, 1974;Vadas et al, 1982). In contrast, many reef fish, including parrotfish, surgeonfish, and rabbitfish, consumed Caulerpa spp.…”

Section: Discussionmentioning

confidence: 99%

“…Ulva spp. were avoided by the sea urchins Strongylocentrotus droebachiensis (Van Alstyne and Houser, 2003), P. lividus , and L. variegatus (Lowe, 1974), the spottail pinfish Diplodus holbrooki (Hay et al, 1987a), and A. longimana (Duffy and Hay, 1994). However, Ulva spp.…”

Section: Discussionmentioning

confidence: 99%

Palatability of Macroalgae that Use Different Types of Chemical Defenses

Erickson

Paul

Alstyne³

et al. 2006

J Chem Ecol

View full text Add to dashboard Cite

This study compared algal palatability and chemical defenses from subtropical green algae that may use different types of defense systems that deter feeding by the rockboring sea urchin Echinometra lucunter. The potential defense systems present include (1) the terpenoid caulerpenyne and its activated products from Caulerpa spp., and (2) dimethylsulfoniopropionate (DMSP)-related defenses in Ulva spp. Secondary metabolites from these chemical groups have been shown to deter feeding by various marine herbivores, including tropical and temperate sea urchins. Live algal multiple-choice feeding assays and assays incorporating algal extracts or isolated metabolites into an artificial diet were conducted. Several green algae, including Ulva lactuca, Caulerpa prolifera, and Cladophora sp., were unpalatable. Nonpolar extracts from U. lactuca deterred feeding, whereas nonpolar extracts from C. prolifera had no effect on feeding. Polar extracts from both species stimulated feeding. Caulerpenyne deterred feeding at approximately 4% dry mass; however, dimethyl sulfide and acrylic acid had no effect at natural and elevated concentrations. E. lucunter is more tolerant than other sea urchins to DMSP-related defenses and less tolerant to caulerpenyne than many reef fish. Understanding the chemical defenses of the algae tested in this study is important because they, and related species, frequently are invasive or form blooms, and can significantly modify marine ecosystems.

show abstract

Absorption efficiencies of Lytechinus variegatus (Lamarck) (Echinodermata: Echinoidea) for selected marine plants

Cited by 86 publications

References 23 publications

Nutrition of the sea urchin Paracentrotus lividus (Echinodermata: Echinoidea) fed different artificial food

Nutrition of the sea urchin Paracentrotus lividus (Echinodermata: Echinoidea) fed different artificial food

Feeding preference of the sea urchin Lytechinus variegatus (Lamarck, 1816) on seaweeds

Palatability of Macroalgae that Use Different Types of Chemical Defenses

Contact Info

Product

Resources

About