Does reef architectural complexity influence resource availability for a large reef-dwelling invertebrate?

Lozano‐Álvarez, Enrique; Luviano-Aparicio, Nelia; Negrete-Soto, Fernando; Barradas-Ortíz, Cecilia; Aguíñiga‐García, Sergio; Morillo-Velarde, Piedad S.; Álvarez‐Filip, Lorenzo; Briones‐Fourzán, Patricia

doi:10.1016/j.seares.2017.08.010

Cited by 13 publications

(21 citation statements)

References 52 publications

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“…To examine the similarity of benthic constituents between reefs, the percentage data were logit-transformed (Warton and Hui, 2011) and subjected to a principal components analysis (PCA). The transformed data for each constituent were then compared between reefs with General Linear Models (GLM) (Lozano-Álvarez et al, 2017).…”

Section: Assessment Of Reef Benthic Constituentsmentioning

confidence: 99%

“…Yet, a stable isotopes analysis (δ 13 C and δ 15 N) showed that despite great overlap in the diet of both species in terms of gross taxa, P. guttatus had a higher trophic position (mean δ 15 N value) than P. argus, and that both species had a very wide range in δ 13 C values, potentially reflecting differences in primary carbon sources at different spatial scales (Segura-García et al, 2016). In the Puerto Morelos Reef National Park, Mexico, Lozano-Álvarez et al (2017) found that habitat complexity is an important factor determining the trophic ecology of P. guttatus. By comparing individuals of P. guttatus from two small isolated reef patches differing in architectural complexity, these authors found that P. guttatus from the less complex reef patch consumed proportionally more crustaceans than did conspecifics from the more complex (and less degraded) reef patch, which consumed proportionally more mollusks.…”

Section: Introductionmentioning

confidence: 98%

“…This phase shift eventually results in loss of structure (i.e., "flattening, " Álvarez-Filip et al, 2009;Bruno et al, 2009). Although most Caribbean reefs are degraded to some extent (Bruno, 2014), different reefs vary in their level of degradation and also in their recovery rates, resulting in wide variations in percent cover of live coral and other constituents of the benthic community (including various types of macroalgae) at the local and landscape scales (Emslie et al, 2008;Edmunds, 2014;Lozano-Álvarez et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…However, in order to understand reef dynamics under rapidly changing conditions, it is necessary to assess ecological changes in other groups, such as motile invertebrates, as these organisms serve as trophic links and can drive key ecological processes on coral reefs (Stella et al, 2011;Kramer et al, 2015). Although these groups have overall been less studied than corals and reef fishes, recent works have found little effects of reef degradation on the diversity or abundance of mobile reef-associated invertebrates in general and of crustaceans in particular (Head et al, 2015;Nelson et al, 2016;Lozano-Álvarez et al, 2017;González-Gómez et al, 2018). Reef degradation, however, may affect associated species in sub-lethal, more subtle ways, such as altering their trophic niche (Letourneur et al, 2017) or reducing their physiological condition due to changes or declines in food availability or quality (Pratchett et al, 2009;Hempson et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

“…Spiny lobsters sustain important fisheries wherever they occur and many studies have addressed overfishing and management issues for spiny lobsters (reviewed in Phillips et al, 2013). Although spiny lobsters can respond to habitat characteristics (e.g., shelter or food availability) at local and landscape scales (Mai and Hovel, 2007;Wynne and Côté, 2007;MacArthur et al, 2011), little is known about the potential effects of coral reef degradation on the trophic ecology of tropical, reef-associated spiny lobsters (e.g., Lozano-Álvarez et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Coral Reef Degradation Differentially Alters Feeding Ecology of Co-occurring Congeneric Spiny Lobsters

et al. 2019

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Caribbean coral reefs are undergoing massive degradation, with local increases of macroalgae and reduction of architectural complexity associated with loss of reefbuilding corals. We explored whether reef degradation affects the feeding ecology of two co-occurring spiny lobsters: Panulirus guttatus, which is an obligate reef-dweller, and Panulirus argus, which uses various benthic habitats including coral reefs. We collected lobsters of both species from the back-reef zones of two large reefs similar in length (∼1.5 km) but differing widely in level of degradation, at the Puerto Morelos Reef National Park (Mexico). We measured the carapace length (CL) and weight (W) of lobsters, estimated three condition indices (hepatosomatic index, HI; blood refractive index, BRI; and W/CL ratio), and analyzed their stomach contents and stable isotope values (δ 15 N and δ 13 C). All lobsters tested negative for the presence of the virus PaV1, which can affect nutritional condition. Stomach contents yielded 72 animal taxa, mainly mollusks and crustaceans, with an average of 35 taxa per species per reef, but with much overlap. In P. guttatus, CL, HI, BRI, and W/CL did not vary with reef, but mean isotopic values did. The isotopic niche of P. guttatus showed little overlap between reefs, reflecting differences in local carbon sources and underlining the habitat specialization of P. guttatus, which exhibited a higher trophic position on the more degraded reef. Overall, the trophic position of P. guttatus was higher than that of P. argus. In P. argus, none of the variables differed between reefs and the isotopic niche was wide and with great overlap between reefs, reflecting the broader foraging ranges of P. argus compared to P. guttatus. Additional isotopic values from 16 P. argus caught at a depth of 25 m in the fore reef suggest that these larger lobsters forage over different habitats and have a higher trophic position than their smaller conspecifics and congeners from the back reef. The feeding ecology of P. argus appears to be less influenced by coral reef degradation than that of P. guttatus, but our results suggest a buffering effect of omnivory against habitat degradation for both lobster species.

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Section: Assessment Of Reef Benthic Constituentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Coral Reef Degradation Differentially Alters Feeding Ecology of Co-occurring Congeneric Spiny Lobsters

et al. 2019

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Untangling the effects of size, habitat and invertebrate biodiversity on parasite prevalence in the Caribbean spiny lobster

2019

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The spiny lobster Panulirus argus is an important benthic mesopredator and a major fishing resource across the Wider Caribbean region. This species is host to the pathogenic virus PaV1 and metacercariae of Cymatocarpus solearis, a digenean trematode whose first intermediate host remains unknown. Previous studies found that the probability of infection with PaV1 was higher in juvenile lobsters and in densely vegetated habitats (suggesting that marine vegetation can be an environmental reservoir for PaV1), whereas the probability of infection with C. solearis was higher for larger lobsters and in poorly vegetated habitats. To increase insight into the role of habitat and body size in the ecology of lobster diseases, the presence of both C. solearis and PaV1 in P. argus was investigated across three contrasting zones in Bahía de la Ascensión, Mexico (19°35′27″N, 87°38′06″W): reef, lagoon and shallow habitat. Additionally, habitat complexity, cover of benthic components, and macroinvertebrate biodiversity were characterized in each zone. Consistent with previous studies, probability of infection with PaV1 (both at a clinical and infective level) decreased with increasing lobster size and was highest in the seagrass-rich lagoon, supporting the idea that marine vegetation could be an environmental reservoir for PaV1. In contrast, the probability of infection with C. solearis increased significantly with lobster size but did not vary with zone, suggesting no relationship with benthic substrate type. However, based on results of macroinvertebrate diversity, the gastropods Cerithium litteratum and Tegula fasciata are put forward as potential candidates for the first intermediate hosts of C. solearis.

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Changes in the physiology and chitin metabolism in cultured juvenile Panulirus ornatus across the moult cycle

Lewis,

Glendinning,

Codabaccus

et al. 2024

Aquaculture Reports

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Does reef architectural complexity influence resource availability for a large reef-dwelling invertebrate?

Cited by 13 publications

References 52 publications

Coral Reef Degradation Differentially Alters Feeding Ecology of Co-occurring Congeneric Spiny Lobsters

Coral Reef Degradation Differentially Alters Feeding Ecology of Co-occurring Congeneric Spiny Lobsters

Untangling the effects of size, habitat and invertebrate biodiversity on parasite prevalence in the Caribbean spiny lobster

Changes in the physiology and chitin metabolism in cultured juvenile Panulirus ornatus across the moult cycle

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