Casitas: a location-dependent ecological trap for juvenile Caribbean spiny lobsters, Panulirus argus. (15th March 2015)
- Record Type:
- Journal Article
- Title:
- Casitas: a location-dependent ecological trap for juvenile Caribbean spiny lobsters, Panulirus argus. (15th March 2015)
- Main Title:
- Casitas: a location-dependent ecological trap for juvenile Caribbean spiny lobsters, Panulirus argus
- Authors:
- Gutzler, Benjamin C.
Butler, Mark J.
Behringer, Donald C. - Abstract:
- Abstract: Casitas are artificial shelters used by fishers to aggregate Caribbean spiny lobsters ( Panulirus argus ) for ease of capture. However, casitas may function as an ecological trap for juvenile lobsters if they are attracted to casitas and their growth or mortality is poorer compared with natural shelters. We hypothesized that juvenile lobsters may be at particular risk if attracted to casitas because they are less able than larger individuals to defend themselves, and do not forage far from shelter. We compared the nutritional condition, relative mortality, and activity of lobsters of various sizes in casitas and natural shelters in adult and juvenile lobster-dominated habitats in the Florida Keys (United States). We found that the ecological effects of casitas are complex and location-dependent. Lobsters collected from casitas and natural shelters did not differ in nutritional condition. However, juvenile lobsters in casitas experienced higher rates of mortality than did individuals in natural shelters; the mortality of large lobsters did not differ between casitas and natural shelters. Thus, casitas only function as ecological traps when deployed in nursery habitats where juvenile lobsters are lured by conspecifics to casitas where their risk of predation is higher. These results highlight the importance of accounting for animal size and location-dependent effects when considering the consequences of habitat modification for fisheries enhancement.
- Is Part Of:
- ICES journal of marine science. Volume 72:Supplement 1(2015)
- Journal:
- ICES journal of marine science
- Issue:
- Volume 72:Supplement 1(2015)
- Issue Display:
- Volume 72, Issue 1 (2015)
- Year:
- 2015
- Volume:
- 72
- Issue:
- 1
- Issue Sort Value:
- 2015-0072-0001-0000
- Page Start:
- i177
- Page End:
- i184
- Publication Date:
- 2015-03-15
- Subjects:
- aggregation device -- casita -- ecological trap -- Panulirus argus -- spiny lobster
Ocean -- Periodicals
Fisheries -- Periodicals
Fishes -- Periodicals
Marine biology -- Bibliography -- Periodicals
551.4605 - Journal URLs:
- http://icesjms.oxfordjournals.org/ ↗
http://www.sciencedirect.com/science/journal/10543139 ↗
http://ukcatalogue.oup.com/ ↗ - DOI:
- 10.1093/icesjms/fsv041 ↗
- Languages:
- English
- ISSNs:
- 1054-3139
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 4361.491000
British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 16907.xml