A5005099230- Marine animal studies overview
- Arctic and Antarctic ice dynamics
- Cephalopods and Marine Biology
- Ichthyology and Marine Biology
- Marine and fisheries research
- Underwater Acoustics Research
- Ocean Acidification Effects and Responses
- Animal Vocal Communication and Behavior
- Scientific Research and Discoveries
- Collaborative Teaching and Inclusion
- Particle physics theoretical and experimental studies
- Aerospace Engineering and Energy Systems
- Particle Detector Development and Performance
- Wildlife Ecology and Conservation
- Gender Roles and Identity Studies
- Marine and coastal plant biology
- Higher Education Research Studies
- Identification and Quantification in Food
- Dark Matter and Cosmic Phenomena
NOAA National Marine Fisheries Service Southwest Fisheries Science Center
1993-2023
National Oceanic and Atmospheric Administration
2021-2023
NOAA National Marine Fisheries Service
1994-2021
Vertical aerial photographs were collected of gray whales migrating along the California Coast between 1994 and 1998 to readdress some published findings on biology life history this population based examination specimens. For each whale, an attempt was made measure standard total length, width whale at its widest point, distance from tip rostrum flukes. southbound whales, early migrants longer average more likely be parturient than those later. Near-term pregnant females wider relative...
Climate change is affecting a wide range of global systems, with polar ecosystems experiencing the most rapid change. Although climate impacts affect lower-trophic-level and short-lived species directly, it less clear how long-lived mobile will respond to warming because they may have short-term ability accommodate ecological disruptions while adapting new conditions. We found that population dynamics an iconic highly polar-associated are tightly coupled Arctic prey availability access...
Body growth of North Atlantic right whales (Eubalaena glacialis) was described from measurements known-age live and dead individuals to gain insights into the nutritional needs life-history strategies this endangered species. lengths 154 revealed that calves more than doubled in size attained three-fourths asymptotic adult by time they had weaned at 12 months. Calves gained on average ∼1.7 cm ∼34 kg per day while nursing during extremely rapid phase. Mean predicted body mass were 4.2 m 1.1...
Abstract: At least four morphologically distinct forms of common dolphins are found in the eastern Pacific, We compared length data for photographed from northern, central and southern regions as defined by Perrin et al. (1985) significant differences average adult animals (>150 cm) “adult females” our purposes accompanied calves. Analyses calculated birth dates calves demonstrated timing reproduction between geographically adjacent forms. Length distributions aerial photographs samples...
Abstract Reproductive parameters were estimated and compared for eastern North Pacific populations of common dolphins using specimen photogrammetric data. Age length data Delphinus capensis D. delphis specimens recovered as bycatch or strandings used to estimate the postnatal growth rates needed age calves measured in aerial photographs. Bayesian methods propagated uncertainty among models revealed that 2009 cohort had birth dates centered on 6 March 12 December 2008 . The evidence discrete...
A bstract Estimates of Steller sea lion ( Eumetopias jubatus ) pup production are valuable for estimating population trend and size. Currently in Alaska, pups counted by visiting rookeries, driving older animals into the water, then walking through rookeries counting pups, a highly disruptive procedure. At smaller with good vantage points, occasionally from periphery without disturbing lions. We evaluated counts made medium‐format, color, aerial photographs as an alternative to drive...
Abstract Four geographic forms of spinner dolphin ( Stenella longirostris ) occur in the eastern tropical Pacific. Two are pelagic: and whitebelly, two coastal: Central American Tres Marias dolphins. Of these, only form lacks recognition appropriate for developing management conservation plans. Vertical aerial photographs 57 schools taken between 1988 2006 were used to examine range coastal characterize their calving seasons. On basis adult body length, dolphins photographed off Guerrero,...
(5D) and the spinless KK photon {gamma}{sub H} (6D). We combine collider limits such as electroweak precision data expected LHC reach, with cosmological constraints from WMAP sensitivity of current or planned direct detection experiments. Allowing for general mass splittings, we show that neither colliders, nor experiments by themselves can explore all relevant dark matter parameter space. Nevertheless, they probe different space regions combination two types be quite powerful. For example,...
The North Atlantic right whale (Narwhale, NARW) is a medium-sized toothed that lives year-round in the Arctic waters around Greenland, Canada, and Russia. It possesses large tusk from protruding canine tooth. NARW born recent years have experienced stunted growth, over same period increasing rates of entanglement fishing gear. As result, appear to less energy devote early growth. A portion estimated length reduction was directly attributable entanglements.