Early Larval Development of<i>Donax obesulus:</i>Response to el Niño Temperature and Salinity Conditions

Carstensen, Daniel; Laudien, Jürgen; Sielfeld, Walter; Oliva, Marcelo E.; Arntz, Wolf

doi:10.2983/035.029.0211

Cited by 6 publications

(1 citation statement)

References 34 publications

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“…Coquina clams are less than 3 cm in length and burrow shallowly into sand of the intertidal and upper subtidal zones, often forming dense populations within centimeters of the surface. Notably, D. obesulus has demonstrated resiliency to ocean temperature increases and salinity reductions associated with strong El Niño events that can decimate other shellfish taxa for months or even years (Arntz et al, 1987; Berrú Paz and Alzamora, 2014; Carstensen et al, 2010). D. obesulus also tolerates latitudinally-dependent ranges in SST during La Niña (Warner et al, 2022).…”

Section: Results: Marine Mollusks Consumed In the Chincha Pisco And T...mentioning

confidence: 99%

Marine shellfish exploitation as a means of reducing vulnerability to resource uncertainty in southern coastal Peru (200 BCE–150 CE)

2022

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The effects of El Niño Southern Oscillation (ENSO) are notoriously hazardous for human populations of the hyperarid Peruvian coast. Yet, ENSO climate fluctuations are fundamental to the ecology of desert plant and animal resources that have been incorporated into human subsistence economies for millennia. We examine marine shellfish exploitation among early complex societies in southern coastal Peru at the end of the first millenium BCE to better understand the subsistence vulnerability of communities in arid environments with variable resource availability and productivity. We analyze new shellfish data from Jahuay, a shoreline fishing settlement in the Topará Quebrada occupied amidst new regional social hierarchies and intensifying inner-valley agriculture. We compare mollusk taxonomic diversity and taxa rank order with published assemblages from four near-contemporaneous sites to assess local and regional trends in resource exploitation. At Jahuay, a unique focus on foraging plentiful Donax obesulus clams resistant to ENSO effects may reflect a local buffering strategy to ensure a resource supply through interannual and decadal climate oscillations. Our comparative results suggest regional reliance on intertidal resource patches, especially rocky habitats, for consumable shellfish. The relative convenience of gathering sessile intertidal taxa that form dense settlements may partly explain their regional popularity. The potential to dry and exchange mollusk meat as a protein source likely enhanced diet diversification while supporting economic and social relationships between communities. Overall, our findings imply that mollusks and intertidal foraging landscapes were important within a broad-spectrum subsistence strategy suited to maintaining and coordinating food availability in a dynamic environment.

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Section: Results: Marine Mollusks Consumed In the Chincha Pisco And T...mentioning

confidence: 99%

Marine shellfish exploitation as a means of reducing vulnerability to resource uncertainty in southern coastal Peru (200 BCE–150 CE)

2022

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Thermal tolerance of larvae of Pollicipes elegans, a marine species with an antitropical distribution

et al. 2013

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Population genetic structure and demographic history of the scallop Argopecten purpuratus from Peru and Northern Chile: implications for management and conservation of natural beds

et al. 2019

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Early Larval Development ofDonax obesulus:Response to el Niño Temperature and Salinity Conditions

Cited by 6 publications

References 34 publications

Marine shellfish exploitation as a means of reducing vulnerability to resource uncertainty in southern coastal Peru (200 BCE–150 CE)

Marine shellfish exploitation as a means of reducing vulnerability to resource uncertainty in southern coastal Peru (200 BCE–150 CE)

Thermal tolerance of larvae of Pollicipes elegans, a marine species with an antitropical distribution

Population genetic structure and demographic history of the scallop Argopecten purpuratus from Peru and Northern Chile: implications for management and conservation of natural beds

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