| mass mortality attributed to acanthocephaliasis at a gull-billed tern (gelochelidon nilotica) colony in coastal california. | from 12 may 2013 to 29 may 2013, the gull-billed tern (gelochelidon nilotica) colony at the san diego bay national wildlife refuge, california, experienced a mass die-off of at least 92 adults, representing 71-92% of the breeding population on the us west coast. cause of death was determined to be peritonitis due to perforations of the intestine by a large quantity of acanthocephala (profilicolis [=polymorphus] altmani). this is a unique report of p. altmani infecting g. nilotica, and a report o ... | 2017 | 28753411 |
| emerita analoga (stimpson)--possible new indicator species for the phycotoxin domoic acid in california coastal waters. | blooms of domoic acid (da) synthesizing diatoms (pseudo-nitzschia spp.) have been associated with the death and injury of hundreds of marine shorebirds and mammals, exposed humans to potentially serious health risks, and threatened to significantly impact coastal fisheries and commerce dependent on marine resources. while indicator organisms are widely utilized to monitor for marine biotoxins like paralytic shellfish poisoning toxins, a reliable intertidal indicator species to monitor da remains ... | 2002 | 12220710 |
| parasite infection and sand coarseness increase sand crab (emerita analoga) burrowing time. | parasites with indirect life cycles require trophic transmission from intermediate hosts to definitive (vertebrate) hosts. transmission may be facilitated if parasite infection alters the behavior of intermediate hosts such that they are more vulnerable to predation. vulnerability to predation may also be influenced by abiotic factors; however, rarely are the effects of parasites and abiotic factors examined simultaneously. the swash zone of sandy beaches is a particularly harsh environment. san ... | 2011 | 21959036 |
| development of a protocol for determination of domoic acid in the sand crab (emerita analoga): a possible new indicator species. | the aim of this study was to begin evaluating the utility of sand crabs (emerita analoga) as an indicator species for the algal neurotoxin, domoic acid (da), in monterey bay, california, usa, a site of recurrent blooms of the da-producing diatom, pseudo-nitzschia. one of the current sentinel organisms, the sea mussel (mytilus californianus), has shown minimal or undetectable toxicity during some local bloom events. as a critical step in assuring the accuracy of da determinations in e. analoga, w ... | 2002 | 11821119 |
| emerita analoga (stimpson) as an indicator species for paralytic shellfish poisoning toxicity along the california coast. | paralytic shellfish poisoning toxins (pspt) produced by certain harmful algal blooms (habs) pose a serious threat to public health worldwide. along the west coast of north america, mytilus californianus (california sea mussel) has long been used as the primary indicator species for monitoring levels of pspt in the environment. however, because the natural distribution of this species is limited to rocky shores, vast stretches of coastline bordered by sandy beach habitat are not regularly monitor ... | 2002 | 12165323 |
| associations between shorebird abundance and parasites in the sand crab, emerita analoga, along the california coast. | i investigated spatial variation in the prevalence and abundance of 4 species of parasites in the sand crab, emerita analoga, on 8 sandy beaches along 800 km of the california coast, to assess the importance of bird abundance for the distribution of parasites among sand crab populations. i collected sand crabs and counted shorebirds and gulls at each beach during june and november 1994. sand crabs served as intermediate hosts for 4 species of parasites, including a trematode, spelotrema nicolli ... | 2007 | 17539408 |
| ddt residues: distribution of concentrations in emerita analoga (stimpson) along coastal california. | the total concentrations (tddt) of ddt [1,1,1-trichloro-2,2-bis(pchlorophenyl)ethane], ddd [1,1-dichloro-2,2-bis(p-chlorophenyl)ethanel, and dde [1,1-dichloro-2,2-bis(p-chlorophenyl)ethylene] in emerita analoga from 19 california beaches reflect tddt contamination nearby. animals near the los angeles county sewer outfall contain over 45 times as much tddt as animals near major agricultural drainage areas. sediments near the outfall probably contain over 100 metric tons of tddt-a reservoir for in ... | 1971 | 5114825 |