Page 193 - Visitor Guides
P. 193

Beach Lighting Management Plan:  Frequently Asked Questions and Answers





       There are too many disadvantages to using low/high            There are other lights near my beachfront property

 Light management techniques are not meant to prohibit   f Control lights:   pressure sodium vapour lighting.   that are visible from the beach. How can the lights

 light near the beach, but to preserve useful light and reduce
 harmful light.   [  The Department of Environment  has information  on
    simple methods for redirecting outdoor and indoor     There are both advantages and disadvantages to   Every bit helps! Any reduction in the amount of

 Be aware that  ALL lighting visible from the beach is a   lighting that is deemed essential. This includes shielding,       using these types of lights.   artificial light on a nesting beach is  helpful.
 problem. Removing/lessening all troublesome lights on one   repositioning, recessing, lower pole mounts, redirecting     Expense: Initially costs of LPS/HPS lighting are   Hatchlings emerging far away from lighted areas
 and the use of timers and/or motion detectors for
 property may allow a nesting female a dark and private spot   outdoor lights,  and methods  such as window tinting,     higher than for incandescent/fluorescent lights,   will have a much higher chance of reaching the
 in which to lay,  but  will  not  lessen  the  attraction  of  lights  on   closing curtains, moving lights that are placed near     but are only  slightly  higher than costs for high   sea.
 adjacent properties to the newly emerged hatchling. It is vital to the   windows, and placing reminder notices on light switches     intensity discharge lighting. Operating costs are
 success of any lighting management effort, that all those      in rental apartments.     much lower for LPS/HPS than for any other   What is an acceptable level of brightness for a
 residing in  beachfront  property  are concerned about their   [    commercial source   beachfront light, so that it does not affect marine

 local sea turtle population, and  take part in the effort to   Additionally, vegetation may  be planted  between     Color:  These lights provide enough
 darken beaches.    properties and the beach front, not only to increase     luminescence for safety  and security lighting.
 suitable nesting  habitat for marine turtles,  but also to
    reduce the amount of light that reaches the beach.     They are used at U.S. Air Force Installations near
         nesting beaches in Florida,
 Light management tactics:  Availability:  Although not widely available in   There is no  method by which  to measure the
                                                                     amount  of  light  that  will  not interfere  with
 f Change bulb type and lower wattage:   stores, these lights  can  be  ordered using the   nesting behaviour. The best option is to remove
       product codes provided above, through Phillip’s               all unnecessary lighting, lower the wattage and/
 f Turn-off lights:    This method should only be used as a substitute  not as a   electrical. For more information concerning   or  change the  type  of bulb on all lighting
    replacement for beach darkening    these lights,  please visit the Phillip website  at   deemed essential and apply directional fixtures
 [  The most direct and complete method of removing the   [  Short-wave bulbs: floodlights, ultra-violet lights and   www.lighting.phillips.com/nam    to all lighting visible from the beach.

 threat of light pollution.    violet, blue and green lights. This is the most harmful to
       normal nesting and hatchling emergence behaviour.
 [  The  simplest, cheapest  and most straightforward   [  What should be done with misdirected hatchlings found   There is not enough turtle nesting on this beach to

 method.    Long-wave bulbs:  Have a minimal effect on sea turtles,   on the beach?   justify beach-darkening efforts. Why should I make
    but are not completely harmless and therefore should be          the effort?
 used in conjunction with other light management
 [  Many establishments use lighting to illuminate areas   techniques.

 that do  not need to  be lighted. This is decorative      Hatchlings are disoriented and confused by
 lighting, and  has limited use for  anything other than   Types of long-wave lighting sources:   artificial lights.  They should be  taken to  a   Beaches where only a few turtles nest are very
 aesthetics.      darkened portion of the beach, placed  on the      important.  The  entire  nesting range  of  a
    [  Low-pressure sodium-vapour (LPS) lighting is the least   send near to the tide line and allowed to run into   population can be made up of sparsely nested
 [  Lighting necessary for safety or security can be used in   disruptive to sea turtles among commonly used light   the sea. Hatchlings that do not move vigorously   beaches. Hawksbill turtles, one of the most

 the early evening hours and  turned off during the   sources.  High-pressure sodium-vapour (HPS) is  more   should  be  placed  in  the  ocean  and  allowed  to   endangered  species,  do  not  nest  in  great
 night.    widely available in Cayman. These are less suitable for   swim away,  By  no  means should any turtle be   numbers anywhere. In Cayman, numbers are so
    nesting turtles but offer high directional control,.   removed from the beach. This period of time is   low that every turtle counts, losing even a tiny
 [  Motion detectors can be fitted to lights used for   [  Yellow-filters, and bug lights : light bulbs that have been   crucial to their survival. The Department of   amount of  nesting activity  may at this  stage

 security.   tinted yellow to reduce the attraction to mosquitoes and   Environment should be notified immediately on   destroy a potential breeding/nesting rookery.
    other insects, can also be less disruptive to sea turtles.   9498469 (normal office hours) or 9477189 (5pm
 Turning out lights will result in energy savings as well as   They are no as good as LPS  lighting, but are less   – 8am)
 expensive and more widely available.

 marine turtle conservation.
   188   189   190   191   192   193   194   195   196   197   198