Temporal-spatial distribution of the hermit crab &lt;i&gt;Loxopagurus loxochelis&lt;/i&gt; (Decapoda: Diogenidae) from Ubatuba Bay, São Paulo State, Brazil

Mantelatto, Fernando L.; Martinelli, Jussara Moretto; Fransozo, Adílson

doi:10.15517/rbt.v52i1.14701

Cited by 25 publications

(13 citation statements)

References 15 publications

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“…As proposed by Mantelatto et al (2004), the occurrence of the hermit crab L. loxocheles in lower temperatures is due to the optimum of geographical distribution of this species. It is mainly distributed along the southern Brazilian and Argentinean coasts (Melo 1999), where the water is cool year-round.…”

Section: Environment and Abundance Of Decapod Crustaceansmentioning

confidence: 86%

Effect of environmental factors on the abundance of decapod crustaceans from soft bottoms off southeastern Brazil

Furlan

Castilho

Fernandes-Góes

et al. 2013

An. Acad. Bras. Ciênc.

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This study investigated the importance of variations in environmental factors affecting the abundance patterns of decapods on the southeastern Brazilian coast. Sampling was carried out monthly from January 1998 through December 1999 in Ubatumirim and Mar Virado, Ubatuba region, using a commercial shrimp fishing boat equipped with double-rig nets. Six areas adjacent to rocky shores were chosen. Bottom-water samples were collected using a Nansen bottle, to measure the temperature and salinity. Sediment samples were also obtained by means of a Van Veen grab, for determination of texture and organic-matter content. The association of environmental factors with species abundance was evaluated by Canonical Correspondence Analysis (α = 0.05). Forty-one species of Decapoda were used in the multivariate analysis. The analysis indicated that sediment texture (phi) and bottom temperature were the main factors correlated (p < 0.05) with the spatial and temporal abundance of the species. Considering the study region as faunal transition zone, including a mixture of species of both tropical and subantarctic origin, the species responded differently to environmental factors, mainly temperature. It is conceivable that the decapods adjust their distribution according to their intrinsic physiological limitations, possibly as a result of the available resources.

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Section: Environment and Abundance Of Decapod Crustaceansmentioning

confidence: 86%

Effect of environmental factors on the abundance of decapod crustaceans from soft bottoms off southeastern Brazil

Furlan

Castilho

Fernandes-Góes

et al. 2013

An. Acad. Bras. Ciênc.

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“…The species biology has been studied continuously at the Brazilian coast (Mantelatto and Martinelli, 2001; Martinelli et al, 2002;Mantelatto et al, 2004;Bertini et al, 2004;Biagi et al, 2006); however, due to the great extent of the Brazilian coast and endemism, it is necessary to evaluate the characteristics of distinct populations, as well as suitable gastropod shells used by different populations of L. loxochelis.…”

Section: Introductionmentioning

confidence: 99%

Shell occupation by the South Atlantic endemic hermit crab Loxopagurus loxochelis (Moreira, 1901) (Anomura: Diogenidae)

et al. 2013

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-The evaluation of population characteristics, particularly those of endemic species, aids in population preservation and management. Hermit crabs present an innate behavior of occupying shells, which tends to individual needs and limits their distribution. This study characterized the pattern of occupation of gastropod shells by the hermit Loxopagurus loxochelis in three bays of the southwestern coast of Brazil. Monthly collections were made from January/1998 to December/1999 in the bays Ubatumirim (UBM), Ubatuba (UBA) and Mar Virado (MV) with a shrimping boat. Overall, ten species of gastropod shells were occupied by L. loxochelis. The shell of Olivancillaria urceus represented 66.8% of those occupied. Morphometric relationships demonstrated a differential occupation of the more abundant shells among demographic groups, where most of the males occupied O. urceus, non-ovigerous females occupied O. urceus and Buccinanops cochlidium, and ovigerous females occupied B. cochlidium and Stramonita haemastoma. Most of the individuals occupied the more abundant shells, considered adequate for the morphology of this hermit crab species. Thus, the studied bays seem to be stable and propitious environments for population perpetuation and the settlement of new individuals.

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“…The presence of Diogenidae (hermit crabs) in the high‐ and low‐water levels at the cleared and intact mangroves suggested that the spatial distribution of this taxon is driven by the preference for fine sediment over sandy bottoms (Lowery & Nelson ) or for sediment with high organic content (Mantelatto et al . ).…”

Section: Discussionmentioning

confidence: 97%

Macrofauna along the Sudanese Red Sea coast: potential effect of mangrove clearance on community and trophic structure

et al. 2014

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Mangroves along the Sudanese Red Sea coast are under constant anthropogenic pressure. To better understand the influence of mangrove clearance on the intertidal benthic community, we investigated the composition, biodiversity and standing stock of the macrofauna communities at high-, mid- and low-water levels in three contrasting habitats: a bare sand flat, a cleared mangrove and an intact mangrove. In addition, a community-wide metric approach based on taxon-specific carbon and nitrogen isotope values was used to compare the trophic structure between the three habitats. The habitats differed significantly in terms of macrofaunal standing stock, community composition and trophic structure. The high- and mid-water levels of the intact mangroves showed a distinct macrofaunal community characterized by elevated densities and biomass, largely governed by higher decapod and gastropod abundances. Diversity was similar for cleared and intact mangroves, but much lower for the bare sand flat. Community-wide metrics indicated highest trophic diversity and community niche breadth in the intact mangroves. Differences between the cleared and intact mangroves can be partly attributed to differences in sediment characteristics resulting from mangrove clearance. These results suggest a significant impact of mangrove clearance on the macrofaunal community and trophic structure. This study calls for further investigations and management actions to protect and restore these habitats, and ensure the survival of this ecologically valuable coastal ecosystem

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Temporal-spatial distribution of the hermit crab <i>Loxopagurus loxochelis</i> (Decapoda: Diogenidae) from Ubatuba Bay, São Paulo State, Brazil

Cited by 25 publications

References 15 publications

Effect of environmental factors on the abundance of decapod crustaceans from soft bottoms off southeastern Brazil

Effect of environmental factors on the abundance of decapod crustaceans from soft bottoms off southeastern Brazil

Shell occupation by the South Atlantic endemic hermit crab Loxopagurus loxochelis (Moreira, 1901) (Anomura: Diogenidae)

Macrofauna along the Sudanese Red Sea coast: potential effect of mangrove clearance on community and trophic structure

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