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Echinoderms such as urchins are important in marine ecosystems, particularly as grazers, and unhealthy urchins can have important ecological implications. For instance, unexplained mortalities of Diadema sp. in the Caribbean were followed by algal overgrowth and subsequent collapse of coral reef ecosystems. Unfortunately few tools exist to evaluate echinoderm health making management of mortalities or other health issues problematic. Hematology is often used to assess animal health in many animal groups including invertebrates but is seldom applied to echninoderms. We used a standard gravitometric technique to concentrate fixed ceolomocytes from the collector urchin Tripneustes gratilla onto microscope slides permitting...
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As grazers, sea urchins are keystone species in tropical marine ecosystems, and their loss can have important ecological ramifications. Die-offs of urchins are frequently described but their causesare often unclear, in part because systematic examinations of animal tissues at gross and microscopic level are not done. In some areas, urchins are being employed to control invasive marine algae. Here we describe the pathology of a mortality event in Tripneustes gratilla in Hawaii where urchins were being translocated to control invasive algae. Although we did not determine the cause of the mortality event, our investigation suggests that animals died from inflammation of the test and epidermal ulceration followed by...
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In general, ChesMMAP is fishery-independent monitoring survey that uses a large-mesh bottom trawl to sample late juvenile-to-adult fishes in the mainstem of Chesapeake Bay. This program currently provides data on relative abundance, length, weight, sex ratio, maturity, age, and trophic interactions for several important fish species that inhabit the bay seasonally.
Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Artrópode, Chesapeake Bay, USA, Cifozoa, Loggerhead, Loggerhead Sea Turtles, All tags...
Sea star wasting disease (SSWD) is a suite of poorly described non-specific clinical signs including abnormal posture, epidermal ulceration, and limb autotomy (sloughing) causing mortalities of over 20 species of sea stars and subsequent ecological shifts throughout the northeastern Pacific. While SSWD is widely assumed to be infectious with environmental conditions facilitating disease progression, little data exist on cellular changes associated with disease that could inform mechanisms of disease pathogenesis and host susceptibility. Here, we replicated SSWD by exposing captive Pisaster ochraceus to a suite of non-infectious organic substances and show that development of gross lesions is a basal to surface process...
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NEAMAP stands for NorthEast Area Monitoring and Assessment Program. NEAMAP was developed to meet the needs of fisheries management and stock assessment activities in the northeastern United States. NEAMAP began in 2006 with a fall pilot survey and in 2008 began conducting both a spring and fall survey. NEAMAP samples from Cape Cod, MA south to Cape Hatteras, NC and targets both juvenile and adult fishes. NEAMAP is an integrated, cooperative state/federal data collection program. Its mission is to facilitate the collection and dissemination of fishery-independent information obtained in the Northeast for use by state and federal fisheries management agencies, the fishing industry (commercial and recreational),...
Categories: Data; Types: Citation; Tags: Anelídeo, Artrópode, Atlantic hagfish, Atlantic ridley, Atlantic ridley sea turtle, All tags...
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These data are part of the Gulf Watch Alaska (GWA) long-term monitoring program, nearshore monitoring component. The dataset has four comma separated values (.csv) file exported from a Microsoft Access relational database. The data consist of: 1) size and disease state of sea stars, 2) counts of sea stars, 3) taxonomic classification and 4) Gulf Watch Alaska contributors.


    map background search result map search result map The Chesapeake Bay Multispecies Monitoring and Assessment Program (ChesMMAP) Northeast Area Monitoring and Assessment Program Near Shore Trawl Survey (NEAMAP) Data on blood cells of the collector urchin, Tripneustes gratilla Sea star wasting disease pathology Rocky Intertidal Data from Prince William Sound, Katmai National Park and Preserve, and Kenai Fjords National Park Mass mortality of collector urchins (Tripneustes gratilla) in Hawai`i The Chesapeake Bay Multispecies Monitoring and Assessment Program (ChesMMAP) Data on blood cells of the collector urchin, Tripneustes gratilla Mass mortality of collector urchins (Tripneustes gratilla) in Hawai`i Rocky Intertidal Data from Prince William Sound, Katmai National Park and Preserve, and Kenai Fjords National Park Northeast Area Monitoring and Assessment Program Near Shore Trawl Survey (NEAMAP)