Diet and growth of juvenile queen conch Lobatus gigas (Gastropoda: Strombidae) in native, mixed and invasive seagrass habitats

Erik Maitz Boman, Tadzio Bervoets, Martin De Graaf, Jana Dewenter, Anna Maitz, Melanie P. Meijer Zu Schlochtern, Johan Stapel, Aad C. Smaal, Leopold A.J. Nagelkerke

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Juvenile queen conch are primarily associated with native seagrass such as Thalassia testudinum in large parts of their range in the Caribbean and the southern Gulf of Mexico. Here, a number of non-native seagrass species have been introduced including Halophila stipulacea, which is natural to the Red Sea and the Indo-Pacific. In the Caribbean, H. stipulacea often creates dense continuous mats with little or no sediment exposed, compared to native seagrass, which grows much less dense. We examined the diet and growth of juvenile conch in both native, mixed, and invasive seagrass beds using stable isotope analysis and an in situ growth enclosure experiment. Organic material in the sediment (i.e. benthic diatoms and particulate organic matter) was found to be the most important source of carbon and nitrogen for juvenile queen conch in all 3 habitats investigated, and there was a significantly higher probability of positive growth in the native seagrass compared to the invasive seagrass. Due to the importance of the organic material in the sediment as a source of nutrition for juvenile conch, limited access to the sediment in the invasive seagrass can potentially cause inadequate nutritional conditions to sustain high growth rates. Thus, it is likely that there is a negative effect on juvenile queen conch growth currently inhabiting invasive seagrass beds, compared to native seagrass beds, when other potential sources of nutrition are not available.

LanguageEnglish
Pages143-154
Number of pages12
JournalMarine Ecology Progress Series
Volume621
DOIs
Publication statusPublished - 2019

Fingerprint

seagrass
Gastropoda
diet
habitat
habitats
sediments
nutrition
Halophila
Bacillariophyceae
Red Sea
sediment
Gulf of Mexico
stable isotopes
enclosure experiment
Lobatus gigas
Strombidae
particulate organic matter
carbon
nitrogen
stable isotope

Keywords

  • Caribbean
  • Halophila stipulacea
  • Invasive species
  • Mollusca
  • Stable isotope

Cite this

Boman, Erik Maitz ; Bervoets, Tadzio ; De Graaf, Martin ; Dewenter, Jana ; Maitz, Anna ; Meijer Zu Schlochtern, Melanie P. ; Stapel, Johan ; Smaal, Aad C. ; Nagelkerke, Leopold A.J. / Diet and growth of juvenile queen conch Lobatus gigas (Gastropoda: Strombidae) in native, mixed and invasive seagrass habitats. In: Marine Ecology Progress Series. 2019 ; Vol. 621. pp. 143-154.
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abstract = "Juvenile queen conch are primarily associated with native seagrass such as Thalassia testudinum in large parts of their range in the Caribbean and the southern Gulf of Mexico. Here, a number of non-native seagrass species have been introduced including Halophila stipulacea, which is natural to the Red Sea and the Indo-Pacific. In the Caribbean, H. stipulacea often creates dense continuous mats with little or no sediment exposed, compared to native seagrass, which grows much less dense. We examined the diet and growth of juvenile conch in both native, mixed, and invasive seagrass beds using stable isotope analysis and an in situ growth enclosure experiment. Organic material in the sediment (i.e. benthic diatoms and particulate organic matter) was found to be the most important source of carbon and nitrogen for juvenile queen conch in all 3 habitats investigated, and there was a significantly higher probability of positive growth in the native seagrass compared to the invasive seagrass. Due to the importance of the organic material in the sediment as a source of nutrition for juvenile conch, limited access to the sediment in the invasive seagrass can potentially cause inadequate nutritional conditions to sustain high growth rates. Thus, it is likely that there is a negative effect on juvenile queen conch growth currently inhabiting invasive seagrass beds, compared to native seagrass beds, when other potential sources of nutrition are not available.",
keywords = "Caribbean, Halophila stipulacea, Invasive species, Mollusca, Stable isotope",
author = "Boman, {Erik Maitz} and Tadzio Bervoets and {De Graaf}, Martin and Jana Dewenter and Anna Maitz and {Meijer Zu Schlochtern}, {Melanie P.} and Johan Stapel and Smaal, {Aad C.} and Nagelkerke, {Leopold A.J.}",
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Diet and growth of juvenile queen conch Lobatus gigas (Gastropoda: Strombidae) in native, mixed and invasive seagrass habitats. / Boman, Erik Maitz; Bervoets, Tadzio; De Graaf, Martin; Dewenter, Jana; Maitz, Anna; Meijer Zu Schlochtern, Melanie P.; Stapel, Johan; Smaal, Aad C.; Nagelkerke, Leopold A.J.

In: Marine Ecology Progress Series, Vol. 621, 2019, p. 143-154.

Research output: Contribution to journalArticleAcademicpeer-review

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T1 - Diet and growth of juvenile queen conch Lobatus gigas (Gastropoda: Strombidae) in native, mixed and invasive seagrass habitats

AU - Boman, Erik Maitz

AU - Bervoets, Tadzio

AU - De Graaf, Martin

AU - Dewenter, Jana

AU - Maitz, Anna

AU - Meijer Zu Schlochtern, Melanie P.

AU - Stapel, Johan

AU - Smaal, Aad C.

AU - Nagelkerke, Leopold A.J.

PY - 2019

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KW - Caribbean

KW - Halophila stipulacea

KW - Invasive species

KW - Mollusca

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T2 - Marine Ecology Progress Series

JF - Marine Ecology Progress Series

SN - 0171-8630

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