Predation on Bivalve Veligers by Polychaete Larvae
نویسندگان
چکیده
منابع مشابه
Size-specific predation on marine invertebrate larvae.
Predation on planktonic larval stages is frequently a major source of mortality for the offspring of benthic marine invertebrates. Mortality rate likely varies with larval size and developmental stage, but few experiments have measured how these factors affect predation rates. I used experimental reductions in egg size to test how variation in larval size affects the likelihood of predation dur...
متن کاملOcean Acidification Has Multiple Modes of Action on Bivalve Larvae
Ocean acidification (OA) is altering the chemistry of the world's oceans at rates unparalleled in the past roughly 1 million years. Understanding the impacts of this rapid change in baseline carbonate chemistry on marine organisms needs a precise, mechanistic understanding of physiological responses to carbonate chemistry. Recent experimental work has shown shell development and growth in some ...
متن کاملCopepod predation on Anopheles quadrimaculatus larvae in rice fields.
Cyclopoid copepods and mosquito larvae were surveyed in southwestern Louisiana rice fields. Almost every rice field had a natural population of Mesocyclops ruttneri, Acanthocylops vernalis, or Macrocyclops albidus. Judging from the abundance of pupae, 29% of the fields were responsible for virtually all Anopheles quadrimaculatus production, apparently because larval mortality suppressed product...
متن کاملPredation: a causal mechanism for variability in intertidal bivalve populations
Two caging experiments were conducted on an intertidal mudflat to assess the impact of predation on two species of bivalves; Macoma balthica and Cerastoderma edule. The first caging 2 experiment enclosed the shore crab, Carcinus maenas, carapace width 15–25 mm, in 1-m cages. The three treatments were zero Carcinus (control), five Carcinus (the highest natural densities found at this site) and 2...
متن کاملPredation and sediment disturbance effects of the intertidal polychaete Nereis virens (Sars) on associated meiofaunal assemblages
A microcosm experiment was carried out to determine the effects of the activity of the burrowing polychaete Nereis virens (Sars) on the associated meiofauna. The sediment basin (76 3 41 cm) was filled with 10 cm of sandy sediment previously sieved with a 1-mm mesh to remove any undesired macrofauna and macrodetritus. Fifteen 13-cm long polyvinyl-chloride (PVC) tubes (I.D. 5 10 cm) were pushed i...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Biological Bulletin
سال: 1998
ISSN: 0006-3185,1939-8697
DOI: 10.2307/1543099