Field guide to requiem sharks (Elasmobranchiomorphi: Carcharhinidae) of the Western North Atlantic
Identification problems are common for many sharks due to a general lack of meristic characteristics that are typicallyuseful for separating species. Other than number of vertebrae and number and shape of teeth, identifications are frequently based on external features that are often shared among sp...
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2001
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ftoceandocs:oai:aquadocs.org:1834/20307 2023-05-15T17:29:54+02:00 Field guide to requiem sharks (Elasmobranchiomorphi: Carcharhinidae) of the Western North Atlantic Grace, Mark 2001 application/pdf http://hdl.handle.net/1834/20307 en eng NOAA/National Marine Fisheries Service Seattle, WA NOAA Technical Report NMFS http://spo.nwr.noaa.gov/tr153.pdf http://hdl.handle.net/1834/20307 http://aquaticcommons.org/id/eprint/2503 403 2011-09-29 18:58:46 2503 United States National Marine Fisheries Service Ecology Management Fisheries monograph 2001 ftoceandocs 2023-04-06T17:01:36Z Identification problems are common for many sharks due to a general lack of meristic characteristics that are typicallyuseful for separating species. Other than number of vertebrae and number and shape of teeth, identifications are frequently based on external features that are often shared among species. Identification problems in the field are most prevalent when live specimens are captured and releasing them with a minimum of stress is a priority (e.g., shark tagging programs). Identifications mustbe accurate and conducted quickly but this can be challenging, especially if specimens are very active or too large to be landed without physical damage. This field guide was designed primarily for use during field studies and presents a simplified method for identifying the 21 species of western North Atlantic Ocean sharks belonging to the family Carcharhinidae (carcharhinids). To assist with identifications a dichotomous key to Carcharhinidae was developed, and for the more problematic Carcharhinus species (12 species), separation sheets based on importantdistinguishing features were constructed. Descriptive text and illustrations provided in the species accounts were developed from field observations, photographs, andpublished references. (PDF file contains 36 pages.) Book North Atlantic IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications |
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Open Polar |
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IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications |
op_collection_id |
ftoceandocs |
language |
English |
topic |
Ecology Management Fisheries |
spellingShingle |
Ecology Management Fisheries Grace, Mark Field guide to requiem sharks (Elasmobranchiomorphi: Carcharhinidae) of the Western North Atlantic |
topic_facet |
Ecology Management Fisheries |
description |
Identification problems are common for many sharks due to a general lack of meristic characteristics that are typicallyuseful for separating species. Other than number of vertebrae and number and shape of teeth, identifications are frequently based on external features that are often shared among species. Identification problems in the field are most prevalent when live specimens are captured and releasing them with a minimum of stress is a priority (e.g., shark tagging programs). Identifications mustbe accurate and conducted quickly but this can be challenging, especially if specimens are very active or too large to be landed without physical damage. This field guide was designed primarily for use during field studies and presents a simplified method for identifying the 21 species of western North Atlantic Ocean sharks belonging to the family Carcharhinidae (carcharhinids). To assist with identifications a dichotomous key to Carcharhinidae was developed, and for the more problematic Carcharhinus species (12 species), separation sheets based on importantdistinguishing features were constructed. Descriptive text and illustrations provided in the species accounts were developed from field observations, photographs, andpublished references. (PDF file contains 36 pages.) |
format |
Book |
author |
Grace, Mark |
author_facet |
Grace, Mark |
author_sort |
Grace, Mark |
title |
Field guide to requiem sharks (Elasmobranchiomorphi: Carcharhinidae) of the Western North Atlantic |
title_short |
Field guide to requiem sharks (Elasmobranchiomorphi: Carcharhinidae) of the Western North Atlantic |
title_full |
Field guide to requiem sharks (Elasmobranchiomorphi: Carcharhinidae) of the Western North Atlantic |
title_fullStr |
Field guide to requiem sharks (Elasmobranchiomorphi: Carcharhinidae) of the Western North Atlantic |
title_full_unstemmed |
Field guide to requiem sharks (Elasmobranchiomorphi: Carcharhinidae) of the Western North Atlantic |
title_sort |
field guide to requiem sharks (elasmobranchiomorphi: carcharhinidae) of the western north atlantic |
publisher |
NOAA/National Marine Fisheries Service |
publishDate |
2001 |
url |
http://hdl.handle.net/1834/20307 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
http://aquaticcommons.org/id/eprint/2503 403 2011-09-29 18:58:46 2503 United States National Marine Fisheries Service |
op_relation |
NOAA Technical Report NMFS http://spo.nwr.noaa.gov/tr153.pdf http://hdl.handle.net/1834/20307 |
_version_ |
1766125130802528256 |