Basic Observation Buoys Introduction to Hard Substrate Epifaunal
Basic Observation Buoys Introduction to Hard Substrate Epifaunal Organisms the Fouling Community May 31, 2014 John Hamilton
Marine Sciences Department University of Connecticut Basic Observation Buoys Basic Observation Buoys
Benthic Invertebrate Life Cycle Many benthic invertebrates have a two-phase or complex life cycle: (1) Part of the life cycle is spent on or in the substrate (2) Part of the life cycle is spent in the water column Epifaunal organisms live on a hard substrate.
Infaunal organisms live in a soft sediment. Meroplankton organisms live in the water column for a portion of their life cycle.
Benthic Invertebrate Life History Larvae M Water Column
Larval Settlement and Recruitment Larvae Next Generation Settlement changing from the larval stage in the water column to the juvenile stage on or in the substrate.
Recruitment settlement, plus survival into the next generation * * or, until observed by a marine biologist! Basic Observation Buoys Benthic Invertebrate Life Cycle
Why ?? Basic Observation Buoys Benthic Invertebrate Life Cycle Complex life cycle what are the benefits and costs?
Promote dispersal to new habitats Reduce intra-specific competition Reduce predation risk Access to different resources (food, space) Basic Observation Buoys
Benthic Invertebrate Life Cycle Some larvae do not feed in the water column. They are Lecithotrophic they obtain energy from internal sources. Examples: colonial tunicates (Botrylloides, Botryllus). Larvae that do feed in the water column are Planktotrophic. Examples: solitary tunicates, some bryozoans.
Basic Observation Buoys Planktonic Larval Duration How long do larvae remain in the water column, and what are the implications of a short or long Planktonic Larval Duration (PLD) ? Barnacles: usually 10-20 days, but can be up to 6
weeks Solitary ascidians, bryozoans: hours to days Colonial ascidians: minutes to a few hours Basic Observation Buoys Planktonic Larval Duration
Distance = Velocity X Time Time = Planktonic Larval Duration Example Pine Island Harbor Velocity = 10 cm/s Time = 10 minutes (e.g. Botrylloides) Distance = ________ ? (in meters)
Thames River Pine Island Harbor Long Island Sound photo: Univ of Conn
Jesus Pineda, 2000 Basic Observation Buoys How To ...
Photo: Jesus Pineda, WHOI Photo: City College of San Francisco Photo: City College of San Francisco Basic Observation Buoys
Next Step ... Build A BOB ! Photo: Oregon Institute of Marine Biology Photo: Oregon Institute of Marine Biology
Sea-based ballistic missile defense will expand JFC options for: Protecting forward-deployed U.S. and coalition forces and Protecting key host nation targets from missile-borne CBRNE weapons And will, support acceleration of sea-based element (in coordination with MDA) of long-range missile defense...
시작일 2011년 1/24, 2/22, 3/21, 4/18, 5/16, 6/13, 7/11, 8/08, 9/06, 10/03, 10/31, 11/28, 12/27 ILAC - University Pathway Program (Pre-degree Certificate Program) 시작일 & 학비 Algoma University Algonquin College Douglas College Georgian College George Brown College Humber College Thompson...
Q: In premises liability case, jury advised the bailiff it had a question about Verdict Form B, which allowed a verdict for plaintiff, but reduced the award by plaintiff's comparative fault. A: Without notice to the attorneys, the judge entered...
Travel Why do people travel? have a rest explore new places - for education - to study practise a foreign language for an adventure get to know new cultures for entertainment To see historical places For shopping reasons Because it´s...
Now lets look at a very important part of the USS pension formula, your pensionable salary. We are a final salary scheme, but in fact it would be extremely unusual for your pensionable salary to equal the actual salary on...
On the PAGE LAYOUT tab, in the Themes group, click Effects. Theme effects are sets of lines and fill effects. Theme effects are sets of lines and fill effects. Hovering your mouse over the effects will show subtle changes in...