A new species of the ghost shrimp genus <i>Neocallichirus</i> Sakai, 1988 (Decapoda: Axiidea: Callianassidae) from the southwestern Atlantic

Hernáez, Patricio; Windsor, Amanda; Paula, Caio Augusto; Santana, William

doi:10.1080/17451000.2019.1703003

Cited by 6 publications

(3 citation statements)

References 12 publications

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“…The sizable difference in δ 13 C values for N. maryae (as Callianassa rathbunae) reported by Murphy & Kremer (1992) and measured in the present study suggests that this difference resulted from bodies of different callichirid species being analyzed, rather than from plasticity of feeding preference in N. maryae. New species of Neocallichirus are continuing to be discovered (Felder & Manning 1995, Karasawa 2004, Hernáez et al 2020, suggesting that misidentification was certainly possible; and Murphy & Kremer (1992) alluded to the fact that their specimens were difficult to identify to species level. Suchanek (1983) interpreted N. maryae as a deposit feeder based on burrow morphology.…”

Section: Interspecies Differences In Food Sources Among the Neocallic...mentioning

confidence: 99%

Interspecies differences in food sources for the tropical callichirid shrimp Neocallichirus spp. on San Salvador Island, Bahamas

Seike

Curran

2023

Mar. Ecol. Prog. Ser.

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At least 4 species of callichirid shrimp coexist in the shallow marine settings of San Salvador Island, an isolated, small platform of the all-carbonates Bahama Archipelago, implying that interspecific competition or trophic niche segregation occurs between these shrimp species. Carbon and nitrogen stable isotope analyses were conducted on soft tissues of 3 callichirid species, Neocallichirus cacahuate, N. grandimana, and N. maryae, to determine the food sources for each species. These analyses revealed that the isotopic trophic niches for these 3 species do not overlap. The most important food source for all 3 species was manatee grass Syringodium filiforme. The second most important food source for N. cacahuate and N. grandimana was drifting seaweed Sargassum sp., whereas that for N. maryae was turtle grass Thalassia testudium. These food-source adaptations likely contribute to the high species diversity of callichirid shrimp in tropical settings such as those found on San Salvador Island.

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Section: Interspecies Differences In Food Sources Among the Neocallic...mentioning

confidence: 99%

Interspecies differences in food sources for the tropical callichirid shrimp Neocallichirus spp. on San Salvador Island, Bahamas

Seike

Curran

2023

Mar. Ecol. Prog. Ser.

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“…It comprises 33 nominal accepted species (DecaNet eds, 2023) of which about half occur in the Indo-West Pacific and 14 in the Caribbean and Atlantic. Sakai's (2011) key to species is now incomplete and includes species now in other genera; Hernáez et al (2020) provided a key to seven Western Atlantic species. Species of Neocallichirus are recognised by the uropodal endopod with a straight or slightly convex anterior margin ending in a rounded angle, the posterior margin being more or less continuous with the posterior margin, a telson that tapers regularly to about half its width, and the antennal peduncle being longer than the antennular peduncle.…”

Section: Neocallichirus Sakai 1988mentioning

confidence: 99%

New records and one new species of Callichiridae (Crustacea, Axiidea) from the Indo-West Pacific, with keys to species of Corallianassa, Lepidophthalmus and Neocallichirus

Poore¹

2023

Mem. Mus. Vic

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Poore, G.C.B. (2023). New records and one new species of Callichiridae (Crustacea, Axiidea) from the Indo-West Pacific with keys to species of Corallianassa, Lepidophthalmus and Neocallichirus. Memoirs of Museum Victoria 82: 71–95. Collections of Callichiridae from surveys of coral reefs and sandy shallow environments in the Indo-West Pacific, particularly Papua New Guinea and Australia, have been used to redescribe and differentiate poorly known species and/or extend the range of others. Keys are provided for identification of the Indo-West Pacific species of Corallianassa Manning, 1987 (six species) and Lepidophthalmus Holmes, 1904 (four species). The distribution of Glypturus armatus (A. MilneEdwards, 1870) now includes Tonga, within its previously known geographic range. Supplementary descriptions and illustrations are provided for Michaelcallianassa indica Sakai, 2002, Mocallichirus mocambiquensis (Sakai, 2004) and Mucrollichirus mucronatus (Strahl, 1862). The 15 Indo-West Pacific and Australian species of the genus Neocallichirus Sakai, 1988 are diagnosed with a key for identification (N. variabilis (Edmondson, 1944) excepted). N. nagoi sp. nov. is described as a new species.

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“…This represents c. 15% and 83% of all valid species of Axiidea and Gebiidea described for the world and western Atlantic, respectively (World Register of Marine Species, www.marin espec ies.org, accessed on July 17th 2020). The information was collected from an exhaustive literature review and fieldwork carried out from 2007 to the present along the coast of Central America and South America (Hernáez, 2014(Hernáez, , 2018bHernáez et al, 2012Hernáez et al, , 2015Hernáez et al, , 2020Hernaez et al, 2020;Hernáez & Vargas, 2013;Hernáez & Wehrtmann, 2007). The taxonomic status of each species was validated using the World Register of Marine Species.…”

Section: Databasementioning

confidence: 99%

Departing from an ideal: An asymmetric, bimodal and non‐Equatorial latitudinal gradient of marine diversity in Western Atlantic burrowing shrimps (Decapoda: Axiidea and Gebiidea)

Hernáez

Fenberg

Rivadeneira

2020

Journal of Biogeography

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Aim: Despite the generality of the latitudinal gradient of species diversity (LDG) phenomenon, there is growing evidence showing deviations from an idealized pattern, that is, a single peak of species richness symmetrically centred in the Equator, but the underlying causes remain little studied. We here evaluate the existence of departures from the idealized LDG in a group of marine crustaceans and the explanatory role of environmental variables. Location: Coastal shelf (<200 m depth) along the Western Atlantic coast (46°N-47°S). Taxon: Burrowing shrimps (Decapoda: Axiidea and Gebiidea). Methods: We assessed the shape of the LDG in 100 burrowing shrimp species using the reported latitudinal ranges of distribution. Species richness was calculated in one-degree latitude bands using a range-through approach. The shape of the LDG was statistically evaluated in terms of latitudinal symmetry, number of modes and location. We evaluated the importance of 10 environmental variables (proxies of different hypothesis categories) predicting the LDG using a random forest model. Results: Burrowing shrimps exhibit an increase in diversity towards the tropics, but departures to the idealized LDG were evident. The LDG is asymmetric between hemispheres and bimodal (two peaks within the tropics), and this trend cannot be explained in terms of sampling artifacts. A random forest model explains 92% of species richness, but the only significant variables were bottom seawater temperature, bottom seawater salinity, bottom seawater temperature range, and tidal range. These predictors were nonlinearly related to species richness, whereas only bottom seawater temperature and bottom seawater salinity showed a significant phylogenetic signal. Main conclusions: The LDG of burrowing shrimps is driven by ecophysiological restrictions of species, reflecting the role of evolutionary (i.e. 'time for species accumulation' and/or 'diversification dynamics') and ecological processes (i.e. 'ecological limits'). Departures from the idealized LDG could be explained by the nonlinear responses of species richness to environmental conditions, the spatial structure of | 651 HERNÁEZ Et al.

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A new species of the ghost shrimp genus Neocallichirus Sakai, 1988 (Decapoda: Axiidea: Callianassidae) from the southwestern Atlantic

Cited by 6 publications

References 12 publications

Interspecies differences in food sources for the tropical callichirid shrimp Neocallichirus spp. on San Salvador Island, Bahamas

Interspecies differences in food sources for the tropical callichirid shrimp Neocallichirus spp. on San Salvador Island, Bahamas

New records and one new species of Callichiridae (Crustacea, Axiidea) from the Indo-West Pacific, with keys to species of Corallianassa, Lepidophthalmus and Neocallichirus

Departing from an ideal: An asymmetric, bimodal and non‐Equatorial latitudinal gradient of marine diversity in Western Atlantic burrowing shrimps (Decapoda: Axiidea and Gebiidea)

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