Echinoderm Fauna of the Galápagos Islands

Maluf, Linda Yvonne

doi:10.1007/978-1-4899-0646-5_17

Cited by 24 publications

(36 citation statements)

References 4 publications

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“…Off Santa Barbara, California, in depths of 278-550 m (152-300 fm) (Domantay, 1961, as B. hancocki and B. maccullochae;Solís-Marín, 2003). In depths of 585-1 018 m (Hansen, 1975;Maluf, 1988;Maluf, 1991). Present record extends the distribution range of S. alexandri within the southwestern Gulf of California (Fig.…”

Section: Remarkssupporting

confidence: 55%

“…Clark, 1907, from the NW Pacific; and Molpadia musculus Risso, 1826, from the Mediterranean. Maluf (1991) proposed a checklist of echinoderms reported from the Galapagos Islands, including 38 Holothuroidea, 16 with records below 350 m depth. Lambert (1996) presented a recapitulation table with distribution, habitat and morphological data for all 8 species of Psolidium known from the eastern Pacific.…”

Section: Introductionmentioning

confidence: 99%

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Deep-water Holothuroidea (Echinodermata) collected during the TALUD cruises off the Pacific coast of Mexico, with the description of two new species

Massin¹,

Hendrickx²

2011

Rev.Mex.Biodiv.

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Research cruises aboard the R/V "El Puma" were organized to collect deep-water benthic and pelagic specimens off the Pacific coast of Mexico. Seventy four specimens of Holothuroidea were collected off the Pacific coast of Mexico in depths of 377-2 200 m. The collection includes representatives of 5 of the 6 orders of Holothuroidea, 3 Dendrochirotida, 2 Dactylochirotida, 2 Aspidochirotida, 4 Elasipodida and 2 Molpadiida. Apodida were not represented. Of the 13 species recognized, 11 were identified to species level and 2, belonging to the genera Ypsilocucumis Panning, 1949, and Mitsukuriella Heding and Panning, 1954, are new to science. Five species represent new geographic or depth records. A list of Mexican localities previously and newly reported for each species are plotted on distribution maps. Environmental data, i.e., depth, temperature, and dissolved oxygen measured at the bottom level during the survey are provided. When compared with other areas of the world, the reduced number of specimens collected during this survey could be linked to the limiting effect of the Pacific Mexico Oxygen Minimum Zone. An updated checklist of species of Holothuroidea recorded below 350 m depth along the Pacific coast of Mexico is also provided totaling 31 species: 13 of these occur in the California Current area, 20 in the Gulf of California, and 15 (16) along the SW coast of Mexico.

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Section: Remarkssupporting

confidence: 55%

Section: Introductionmentioning

confidence: 99%

Deep-water Holothuroidea (Echinodermata) collected during the TALUD cruises off the Pacific coast of Mexico, with the description of two new species

Massin¹,

Hendrickx²

2011

Rev.Mex.Biodiv.

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“…The sea stars gradually move away from the boundary and across the sand patch again where they encounter sediments with relatively high concentrations of particulate organic matter that have developed in the absence of intensive sea star grazing over periods of weeks (Scheibling 1980c). This sea star is about the same size as O. reticulatus and feeds in a similar manner (Maluf 1991). There is some evidence that the sea star becomes more aggregated during its spawning period (Scheibling 1980b), which may result in sufficient heterogeneity in the distribution of sea stars and their particulate foods to trigger a front.…”

Section: Spatial Distribution Of the Foodmentioning

confidence: 99%

“…Interestingly, one of us (R. E. Scheibling) has observed a front of another oreasterid, Pentaceraster cumingi (formerly Oreaster occidentalis), on an open sand and cobble bottom at Rabida, Gala´pagos Islands. This sea star is about the same size as O. reticulatus and feeds in a similar manner (Maluf 1991).…”

Section: Spatial Distribution Of the Foodmentioning

confidence: 99%

Formation and Propagation of Feeding Fronts in Benthic Marine Invertebrates: A Modeling Approach

Lauzon-Guay

Scheibling

Barbeau

2008

Ecology

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Feeding fronts are a striking pattern of spatial distribution observed in both marine and terrestrial ecological systems. These fronts not only determine the abundance and distribution of prey populations, but on a broader scale they may also affect the structure and dynamics of entire communities. Several mechanisms leading to the formation of feeding fronts have been proposed, and chemotaxis has been suggested as an important component.Here we develop two mathematical models that show front formation can occur with simple kinesis (and without chemotaxis) in two marine invertebrates with different feeding habits: a microphagous sea star (Oreaster reticulatus) that feeds on sediments and an herbivorous sea urchin (Strongylocentrotus droebachiensis) that grazes kelp beds. We utilize a large body of detailed empirical information on movement pattern, foraging behavior, and front dynamics for each species to develop, parameterize, and evaluate our models. We found that our model predictions for the rate of advance of a front and its relationship to the density of consumers at the front were in close agreement with independently collected, empirical observations in both systems. This work shows that simple local interactions between mobile consumers and a stationary resource can result in large-scale heterogeneous patterns of abundance of both species.

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“…Maluf (1988) showed that 52 of these 109 species had at least 1 record off the western coast of Mexico. Subsequent accounts summarizing the distribution of species of Asteroidea occurring off the Pacific coast of Mexico include Maluf (1991), Nybakken et al (1998), Solís-Marín et al (2005), Maluf and Brusca (2005), Keller et al (2007), and Honey-Escandón et al (2008). Alton (1966) reported 54 species of bathyal and abyssal sea stars from northern Oregon.…”

Section: Introductionmentioning

confidence: 99%

Deep-water Asteroidea (Echinodermata) collected during the TALUD cruises in the Gulf of California, Mexico

Hendrickx¹,

Mah²,

Zárate-Montes³

2011

Rev.Mex.Biodiv.

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During a series of cruises aboard the R/V "El Puma" aimed at collecting the deep-water benthic and pelagic fauna off the Pacific coast of Mexico, in the eastern Pacific, samples of Asteroidea were collected below 500 m depth (587-1 526 m). A total of 335 specimens were collected, belonging to 18 species, 14 identified to species, 3 to genus, and 1 previously undescribed species. New records are provided for Dipsacaster

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Echinoderm Fauna of the Galápagos Islands

Cited by 24 publications

References 4 publications

Deep-water Holothuroidea (Echinodermata) collected during the TALUD cruises off the Pacific coast of Mexico, with the description of two new species

Deep-water Holothuroidea (Echinodermata) collected during the TALUD cruises off the Pacific coast of Mexico, with the description of two new species

Formation and Propagation of Feeding Fronts in Benthic Marine Invertebrates: A Modeling Approach

Deep-water Asteroidea (Echinodermata) collected during the TALUD cruises in the Gulf of California, Mexico

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