Prey Fields and Habitat of Deep Divers: 3D Characterization and Modeling of Beaked and Sperm Whale Foraging Areas
The physical and biological characteristics of the areas inhabited by deep diving odontocetes are poorly understood. Our long term goals are: i) to measure and characterize the biomass in areas and at depths inhabited by beaked and sperm whales; ii) to measure and characterize the physics of these e...
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ftdtic:ADA505095 2023-05-15T17:10:16+02:00 Prey Fields and Habitat of Deep Divers: 3D Characterization and Modeling of Beaked and Sperm Whale Foraging Areas Nowacek, Douglas P. St. Laurent, Louis Moretti, David J. Halpin, Patrick N. DUKE UNIV BEAUFORT NC MARINE LAB 2008 text/html http://www.dtic.mil/docs/citations/ADA505095 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA505095 en eng http://www.dtic.mil/docs/citations/ADA505095 Approved for public release; distribution is unlimited. DTIC Biological Oceanography Acoustics Physical and Dynamic Oceanography Marine Engineering Military Forces and Organizations Naval Surface Warfare Undersea and Antisubmarine Warfare *THREE DIMENSIONAL *HABITATS *OCEAN ENVIRONMENTS *FEEDING *MODELS *WHALES *DEEP DIVING *OCEANOGRAPHY *AQUATIC ANIMALS *MARINE BIOLOGY PHYSICS SAMPLING HOT SPOTS BEHAVIOR RESPONSE(BIOLOGY) GEOGRAPHIC AREAS AQUATIC ORGANISMS UNDERWATER ACOUSTICS DIVERS GEARS ECHO RANGING DOLPHINS(MAMMALS) CHLOROPHYLLS BAHAMA ISLANDS DOPPLER SONAR HYDROGRAPHIC SONAR OCEANOGRAPHIC DATA COLD REGIONS ORIENTATION(DIRECTION) PHYSICAL PROPERTIES MONITORING MAMMALS BIOLOGY SIZES(DIMENSIONS) TONGUE OF THE OCEAN MEASUREMENT ENVIRONMENTS *ODONTOCYTES *BEAKED WHALES *SPERM WHALES *TOTO(TONGUE OF THE OCEAN) *HDSS(HYDROGRAPHIC DOPPLER SONAR SYSTEM) *PREY FIELDS *FORAGING AREAS COLD SPOTS AUTEC OCEAN RANGE M3R(MARINE MAMMAL MONITORING) BRS(BEHAVIORAL RESPONSE STUDY) ECHOLOCATION CDT(CONDUCTIVITY DEPTH TEMPERATURE) DMP(DEEP MICROSTRUCTURE PROFILER) Text 2008 ftdtic 2016-02-22T21:16:42Z The physical and biological characteristics of the areas inhabited by deep diving odontocetes are poorly understood. Our long term goals are: i) to measure and characterize the biomass in areas and at depths inhabited by beaked and sperm whales; ii) to measure and characterize the physics of these environments; iii) to assemble the characteristics measured (i) and (ii) into a depth integrated, 3- dimensional habitat model; the model will include other dependent and independent data, e.g., chlorophyll and depth, respectively. Our final long term goal is to then apply the habitat model produced to other geographic areas to assess their likelihood as beaked and sperm whale habitat. The primary scientific objective for this year's work was to measure the biological and physical environment in areas both frequently (i.e., "hot spots") and rarely (i.e., "cold spots") utilized by beaked whales in the Tongue of the Ocean (TOTO), particularly on the AUTEC range, Andros, Bahamas. These "hot" and "cold" spots were determined using data from the M3R program (DeMarzio REF). The AUTEC range work was completed in coordination with two other programs, the Behavioral Response Study (BRS) and the Marine Mammal Monitoring (M3R) at AUTEC. The R/V Roger Revelle possesses specialized sampling gear that provided a unique technical capabilities, specifically the Hydrographic Doppler Sonar System (HDSS), which is a one of a kind Doppler current profiling system capable of measure current directions and velocities to approx. 1000 meters depth. The technical objectives were: i) to measure the biomass in the TOTO in a representative way so that the biomass in areas not actually sampled could be accurately extrapolated by the habitat modeling; ii) to take physical oceanographic measurements integrated with biological sampling; iii) to compare the deep diving odontocete echolocation activity on the AUTEC range with our measurements of the biological and physical environment. Text Marine Mammal Monitoring Sperm whale Defense Technical Information Center: DTIC Technical Reports database |
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Open Polar |
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Defense Technical Information Center: DTIC Technical Reports database |
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ftdtic |
language |
English |
topic |
Biological Oceanography Acoustics Physical and Dynamic Oceanography Marine Engineering Military Forces and Organizations Naval Surface Warfare Undersea and Antisubmarine Warfare *THREE DIMENSIONAL *HABITATS *OCEAN ENVIRONMENTS *FEEDING *MODELS *WHALES *DEEP DIVING *OCEANOGRAPHY *AQUATIC ANIMALS *MARINE BIOLOGY PHYSICS SAMPLING HOT SPOTS BEHAVIOR RESPONSE(BIOLOGY) GEOGRAPHIC AREAS AQUATIC ORGANISMS UNDERWATER ACOUSTICS DIVERS GEARS ECHO RANGING DOLPHINS(MAMMALS) CHLOROPHYLLS BAHAMA ISLANDS DOPPLER SONAR HYDROGRAPHIC SONAR OCEANOGRAPHIC DATA COLD REGIONS ORIENTATION(DIRECTION) PHYSICAL PROPERTIES MONITORING MAMMALS BIOLOGY SIZES(DIMENSIONS) TONGUE OF THE OCEAN MEASUREMENT ENVIRONMENTS *ODONTOCYTES *BEAKED WHALES *SPERM WHALES *TOTO(TONGUE OF THE OCEAN) *HDSS(HYDROGRAPHIC DOPPLER SONAR SYSTEM) *PREY FIELDS *FORAGING AREAS COLD SPOTS AUTEC OCEAN RANGE M3R(MARINE MAMMAL MONITORING) BRS(BEHAVIORAL RESPONSE STUDY) ECHOLOCATION CDT(CONDUCTIVITY DEPTH TEMPERATURE) DMP(DEEP MICROSTRUCTURE PROFILER) |
spellingShingle |
Biological Oceanography Acoustics Physical and Dynamic Oceanography Marine Engineering Military Forces and Organizations Naval Surface Warfare Undersea and Antisubmarine Warfare *THREE DIMENSIONAL *HABITATS *OCEAN ENVIRONMENTS *FEEDING *MODELS *WHALES *DEEP DIVING *OCEANOGRAPHY *AQUATIC ANIMALS *MARINE BIOLOGY PHYSICS SAMPLING HOT SPOTS BEHAVIOR RESPONSE(BIOLOGY) GEOGRAPHIC AREAS AQUATIC ORGANISMS UNDERWATER ACOUSTICS DIVERS GEARS ECHO RANGING DOLPHINS(MAMMALS) CHLOROPHYLLS BAHAMA ISLANDS DOPPLER SONAR HYDROGRAPHIC SONAR OCEANOGRAPHIC DATA COLD REGIONS ORIENTATION(DIRECTION) PHYSICAL PROPERTIES MONITORING MAMMALS BIOLOGY SIZES(DIMENSIONS) TONGUE OF THE OCEAN MEASUREMENT ENVIRONMENTS *ODONTOCYTES *BEAKED WHALES *SPERM WHALES *TOTO(TONGUE OF THE OCEAN) *HDSS(HYDROGRAPHIC DOPPLER SONAR SYSTEM) *PREY FIELDS *FORAGING AREAS COLD SPOTS AUTEC OCEAN RANGE M3R(MARINE MAMMAL MONITORING) BRS(BEHAVIORAL RESPONSE STUDY) ECHOLOCATION CDT(CONDUCTIVITY DEPTH TEMPERATURE) DMP(DEEP MICROSTRUCTURE PROFILER) Nowacek, Douglas P. St. Laurent, Louis Moretti, David J. Halpin, Patrick N. Prey Fields and Habitat of Deep Divers: 3D Characterization and Modeling of Beaked and Sperm Whale Foraging Areas |
topic_facet |
Biological Oceanography Acoustics Physical and Dynamic Oceanography Marine Engineering Military Forces and Organizations Naval Surface Warfare Undersea and Antisubmarine Warfare *THREE DIMENSIONAL *HABITATS *OCEAN ENVIRONMENTS *FEEDING *MODELS *WHALES *DEEP DIVING *OCEANOGRAPHY *AQUATIC ANIMALS *MARINE BIOLOGY PHYSICS SAMPLING HOT SPOTS BEHAVIOR RESPONSE(BIOLOGY) GEOGRAPHIC AREAS AQUATIC ORGANISMS UNDERWATER ACOUSTICS DIVERS GEARS ECHO RANGING DOLPHINS(MAMMALS) CHLOROPHYLLS BAHAMA ISLANDS DOPPLER SONAR HYDROGRAPHIC SONAR OCEANOGRAPHIC DATA COLD REGIONS ORIENTATION(DIRECTION) PHYSICAL PROPERTIES MONITORING MAMMALS BIOLOGY SIZES(DIMENSIONS) TONGUE OF THE OCEAN MEASUREMENT ENVIRONMENTS *ODONTOCYTES *BEAKED WHALES *SPERM WHALES *TOTO(TONGUE OF THE OCEAN) *HDSS(HYDROGRAPHIC DOPPLER SONAR SYSTEM) *PREY FIELDS *FORAGING AREAS COLD SPOTS AUTEC OCEAN RANGE M3R(MARINE MAMMAL MONITORING) BRS(BEHAVIORAL RESPONSE STUDY) ECHOLOCATION CDT(CONDUCTIVITY DEPTH TEMPERATURE) DMP(DEEP MICROSTRUCTURE PROFILER) |
description |
The physical and biological characteristics of the areas inhabited by deep diving odontocetes are poorly understood. Our long term goals are: i) to measure and characterize the biomass in areas and at depths inhabited by beaked and sperm whales; ii) to measure and characterize the physics of these environments; iii) to assemble the characteristics measured (i) and (ii) into a depth integrated, 3- dimensional habitat model; the model will include other dependent and independent data, e.g., chlorophyll and depth, respectively. Our final long term goal is to then apply the habitat model produced to other geographic areas to assess their likelihood as beaked and sperm whale habitat. The primary scientific objective for this year's work was to measure the biological and physical environment in areas both frequently (i.e., "hot spots") and rarely (i.e., "cold spots") utilized by beaked whales in the Tongue of the Ocean (TOTO), particularly on the AUTEC range, Andros, Bahamas. These "hot" and "cold" spots were determined using data from the M3R program (DeMarzio REF). The AUTEC range work was completed in coordination with two other programs, the Behavioral Response Study (BRS) and the Marine Mammal Monitoring (M3R) at AUTEC. The R/V Roger Revelle possesses specialized sampling gear that provided a unique technical capabilities, specifically the Hydrographic Doppler Sonar System (HDSS), which is a one of a kind Doppler current profiling system capable of measure current directions and velocities to approx. 1000 meters depth. The technical objectives were: i) to measure the biomass in the TOTO in a representative way so that the biomass in areas not actually sampled could be accurately extrapolated by the habitat modeling; ii) to take physical oceanographic measurements integrated with biological sampling; iii) to compare the deep diving odontocete echolocation activity on the AUTEC range with our measurements of the biological and physical environment. |
author2 |
DUKE UNIV BEAUFORT NC MARINE LAB |
format |
Text |
author |
Nowacek, Douglas P. St. Laurent, Louis Moretti, David J. Halpin, Patrick N. |
author_facet |
Nowacek, Douglas P. St. Laurent, Louis Moretti, David J. Halpin, Patrick N. |
author_sort |
Nowacek, Douglas P. |
title |
Prey Fields and Habitat of Deep Divers: 3D Characterization and Modeling of Beaked and Sperm Whale Foraging Areas |
title_short |
Prey Fields and Habitat of Deep Divers: 3D Characterization and Modeling of Beaked and Sperm Whale Foraging Areas |
title_full |
Prey Fields and Habitat of Deep Divers: 3D Characterization and Modeling of Beaked and Sperm Whale Foraging Areas |
title_fullStr |
Prey Fields and Habitat of Deep Divers: 3D Characterization and Modeling of Beaked and Sperm Whale Foraging Areas |
title_full_unstemmed |
Prey Fields and Habitat of Deep Divers: 3D Characterization and Modeling of Beaked and Sperm Whale Foraging Areas |
title_sort |
prey fields and habitat of deep divers: 3d characterization and modeling of beaked and sperm whale foraging areas |
publishDate |
2008 |
url |
http://www.dtic.mil/docs/citations/ADA505095 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA505095 |
genre |
Marine Mammal Monitoring Sperm whale |
genre_facet |
Marine Mammal Monitoring Sperm whale |
op_source |
DTIC |
op_relation |
http://www.dtic.mil/docs/citations/ADA505095 |
op_rights |
Approved for public release; distribution is unlimited. |
_version_ |
1766066831275065344 |