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(1 - 25 of 136)
Pages
- Title
- The vertical distribution and feeding habits of two common midwater fishes (Leuroglossus stilbius and Stenobrachius leucopsarus) off Santa Barbara,
- Description
- , Downloaded from: calcofi.org/publications/calcofireports/.../Vol_31_Cailliet___Ebeling.pdf (9 July 2014)., ,
- Author
- Cailliet, Ebeling
- Date
- 1990-01-01T00:00:00Z
- Title
- Development of a computer-aided age determination system,
- Description
- We have developed a computer-aided system (Bony Parts) to analyze periodic bands in fish otoliths (or other structures) for age estimation. The image analysis program first scans the image of a thin otolith section, perpendicular to the bands specified by the user. Adjacent scans are averaged and filtered with Fourier transformation or spatial domain convolution. Bands of higher density are detected and are marked and summed on the screen. We evaluated this new technique using subsamples of thin-sectioned otoliths from the bank rockfish Sebastes rufus. The time and effort for cleaning, preparation, sectioning, and mounting are the same for both traditional and computer-aided techniques. The computer-aided technique reduced the time and tedium of counting bands, yet still allowed the user to interactively make subjective decisions about aging criteria. Both approaches produced similar readings, but computer-aided estimates were more precise than traditional readings and required less analysis time. Thus, this new technique allows sample size and precision to be increased for a given amount of effort. Use of this new technique to age 1,897 sections produced von Bertalanffy growth equations that indicate female bank rockfish grow to a larger theoretical maximum size than males (L1 = 500.7 mm versus 438.1 mm total length) but grow at a slightly slower rate (K = 0.054 for females versus 0.073 for males., Cited By (since 1996):11, Fish and Fisheries, CODEN: TAFSA, ,
- Author
- Cailliet, Botsford, Brittnacher, Ford, Matsubayashi, King, Waiters, Kope
- Date
- 1996-01-01T00:00:00Z
- Title
- Mouth size and predator strategy of midwater fishes,
- Description
- It has been suggested that bathypelagic fishes should be equipped to eat any large or small food item that they should chance to meet in their relatively impoverished environment. The derived hypothesis that bathypelagic species are trophically generalized was indirectly substantiated in two taxonomic groups of midwater fishes. Bathypelagic members tend to be larger and have larger mouths than their mesopelagic relatives, but still have a well-developed pharyngeal basket for retaining small items. Bathypelagic offshoots of the primarily mesopelagic group of lanternfishes seem to have acquired larger mouths at the presumed metabolic expense of having proportionately larger bodies. The deeper-living members of the primarily lower mesopelagic or bathypelagic family Melamphaidae are further specialized in that they have disproportionately larger mouths with minimum additional body size. This discussed relative to theoretical considerations of foraging strategy and metabolic economy. © 1974., Cited By (since 1996):8, ,
- Author
- Ebeling, Cailliet
- Date
- 1974-01-01T00:00:00Z
- Title
- Exploring the davidson seamount: Combining science, public outreach, and resource management,
- Description
- Scientific information is often interpreted to the public long after it has been discovered. NOAA programs and private organizations are interested in more immediate sharing of information with the public so that it can be more effectively used in resource management. The Davidson Seamount is an underwater volcano off the coast of Central California, and recent advances in technology provide the opportunity to explore and characterize the biology of this deep-sea habitat. With an interdisciplinary team of scientists, outreach specialists, and resource managers, this exploration was presented to the public as it was happening with daily updates on a web site. The public also interacted by e-mail with the explorers during the expedition. Huge corals and sponges, deep-water fishes, and the technology needed to study this deep, dark habitat particularly engaged the public, resource managers, and scientists alike. Following the cruise there was national media interest in discoveries from the expedition, not only because the findings were spectacular, but because significant efforts were made to provide the media with access to the explorers and images of the findings. Resource managers are already using summary information from the cruise in processes that may potentially protect Davidson Seamount habitats. Even before the scientific data has been completely analyzed, the public and resource managers have been engaged in a healthy process of information sharing. In characterizing the biology of Davidson Seamount, we found that this model of an interdisciplinary expedition effectively integrated new scientific information into public understanding and management options for a unique area., , ,
- Author
- DeVogelaere, Kochevar, Tamburri, Cailliet, Burton, Benson, Douros
- Date
- 2005-01-01T00:00:00Z
- Title
- Techniques for enhancing vertebral bands in age estimation of California elasmobranchs
- Description
- Vertebrae from 1,152 elasmobranchs representing 22 species were collected between 1979 and 1981 to assess methods of enhancing incremental growth bands for age estimation. Thus far, we have tested methods previouslyreported in the literature, and have developed new procedures to enhance growth increments on 684 individuals of 14 species of elasmobranchs. Silver nitrate impregnation, X-radiograpby, and cedarwood oil clearing were the most successful techniques. Less effeetive were alizarin red staining, paraffin impregnation, alcohol immersiorn, and formic acid etching. Methods for preparing vertebrae and enhancing and counting growth increments are presented, and the problems associated with interpreting tile annual nature of such counts are discussed.
- Author
- Cailliet, Martin, Kusher, Wolf, Welden, Prince, Pulos
- Date
- 1983-01-01T00:00:00Z
- Title
- Natural History Observations of Hawaiian Garden Eels, Gorgasia hawaiiensis (Congridae: Heterocongrinae), from the Island of Hawai'i, Natural History Observations of Hawaiian Garden Eels
- Description
- Garden eels occur worldwide in the tropics, but little is known about their biology and ecology. We studied Hawaiian garden eel (Gorgasia hawaiiensis) colonies near Kawaihae, Hawai'i, to investigate multiple aspects of basic biology of this species. Colonies of G. hawaiiensis occurred at depths from 16 to 36 m in soft-bottom habitat adjacent to rocky reefs. Highest burrow densities (up to 40 eels m-2) were in shallower water, and large (~10 mm diameter) burrows were more abundant, less dense, and commonly found in pairs in deeper water. Eels emerged around sunrise and withdrew and covered burrow entrances around sunset. Age was estimated from annual rings in sectioned otoliths (n = 17) and modeled to suggest fast growth to a maximum size of ~600 mm total length and a maximum age of 6 yr. Prey size and eel anatomy suggest that these fish feed by ingesting planktonic prey and processing them in the esophagus. The most common food items were small (<0.5 mm) demersal harpacticoid, cyclopoid, and calanoid copepods and unidentified fish eggs. These and other observations indicate that G. hawaiiensis is abundant, has a high population turnover rate, and may enrich sandy-bottom habitat within their beds by facilitating energy flow from the water column to the benthos. © 2017 by University of Hawai'i Press., Export Date: 17 April 2017, Article
- Author
- Donham, Foster, Rice, Cailliet, Yoklavich, Hamilton
- Title
- Age and growth determination of the bat ray, Myliobatis californica Gill, in central California,
- Description
- , , ,
- Author
- Martin, Cailliet
- Date
- 1988-01-01T00:00:00Z
- Title
- The deep-sea as a final global sink of semivolatile persistent organic pollutants? Part I: PCBs in surface and deep-sea dwelling fish of the North and South Atlantic and the Monterey Bay Canyon (California),
- Description
- The understanding of the global environmental multiphase distribution of persistent organic pollutants (POPs) as a result of the physico-chemical properties of the respective compounds is well established. We have analysed the results of a vertical transport of POPs from upper water layers (0-200 m) to the deepwater region (>800 m) in terms of the contamination of the biophase in both water layers. The contents of persistent organochlorine compounds like polychlorinated biphenyls (PCBs) in fish living in the upper water layers of the North Atlantic and the South Atlantic, and at the continental shelf of California (Marine Sanctuary Monterey Bay and its deep- sea Canyon) are compared to the levels in deep-sea or bottom dwelling fish within the same geographic area. The deep-sea biota show significantly higher burdens as compared to surface-living species of the same region. There are also indications for recycling processes of POPs - in this case the PCBs - in the biophase of the abyss as well. It can be concluded that the bio- and geo phase of the deep-sea may act similarly as the upper horizons of forest and grasslands on the continents as an ultimate global sink for POPs in the marine environment. (C) 2000 Elsevier Science Ltd., Cited By (since 1996):56, Ecology, Fish and Fisheries, CODEN: CMSHA, ,
- Author
- Froescheis, Looser, Cailliet, Jarman, Ballschmiter
- Date
- 2000-01-01T00:00:00Z
- Title
- Trophic spectrum analysis of fishes in Elkhorn Slough and nearby waters
- Author
- Cailliet, Antrim, Ambrose, Lipovsky, Simenstad
- Date
- 1978-01-01T00:00:00Z
- Title
- Patterns of growth, energy utilization and reproduction in some meso- and bathypelagic fishes off Southern California,
- Description
- We have studied growth, energy use and reproduction in 4 mesopelagic fishes and 5 bathypelagic fishes living off Southern California (USA). All of the mesopelagic species underwent diurnal vertical migrations, while none of the bathypelagic species did so. The life histories of these pelagic fishes were compared among themselves and with epipelagic sardines and anchovies studied by others. The epipelagic species had the highest growth rates (estimated from otoliths, expressed in standard length or kilocalories), the mesopelagic species had the lowest growth rates and the bathypelagic species had intermediate growth rates. The relatively rapid growth rates of the bathypelagic fishes were achieved by high relative growth efficiencies made possible by low metabolic rates. Of the species studied, the lifespans of the epipelagic and bathypelagic species ranged from 4 to 8 yr and the lifespans of mesopelagic species from 5 to 8 yr. Data on egg diameters suggest that the mesopelagic species first reproduce in their 3rd yr, while the bathypelagic species do so in their last year. Epipelagic fishes generally have a large size, rapid growth, long life and early, repeated reproduction. Mesopelagic fishes are characterized by small size, slow growth, long life and early, repeated reproduction. Bathypelagic fishes generally have large size, rapid growth, somewhat shorter lives and late reproduction, which is possible a single event. The latter pattern is evidently feasible only in a rather stable environment where juvenile survivorship would always display relatively low variability. Many unusual characteristics of deep-living animals have possibly been selected by factors peculiar to the environment; however, such characteristics are just as likely to have been selected by factors equally present in many other environments, but not expressed there due to masking selective forces. In particular, we have in mind the darkness, stability and homogeneity of the bathypelagic realm as phenomena which represent the effective absence of many selective forces. © 1980 Springer-Verlag., Cited By (since 1996):48, CODEN: MBIOA, ,
- Author
- Childress, Taylor, Cailliet, Price
- Date
- 1980-01-01T00:00:00Z
- Title
- Radiometric age validation of Atlantic tarpon, Megalops atlanticus,
- Description
- An improved radiometric aging technique was used to examine annulus-derived age estimates from otoliths of the Atlantic tarpon, Megalops atlanticus. Whole otoliths from juvenile fish and otolith cores, representing the first 2 years of growth, from adult fish were used to determine 210Pb and 226Ra activity; six age groups consisting of pooled otoliths and nine individual otolith cores were aged. This unprecedented use of individual otolith cores to determine age was possible because of improvements made to the 226Ra determination technique. The disequilibria of 210Pb:226Ra for these samples were used to determine radiometric age. Annulus-derived age estimates did not agree closely with radiometric age determinations. In most cases, the precision (CV≤12%) among the otolith readings could not explain the differences. The greatest radiometric age was 78.0 yr for a 2045-mm-FL female, where the radiometric error encompassed the annulus-derived age estimate of 55 yr by about 4 yr. The greatest radiometric age for males was 41.0 yr for a 1588-mm-FL tarpon, where the radiometric error encompassed the annulus-derived age estimate of 32 yr by 1 yr. Radiometric age determinations in this study indicated that the interpretation of growth zones in Atlantic tarpon otoliths can be difficult, and in some cases may be inaccurate. This study provides conclusive evidence that the longevity of the Atlantic tarpon is greater than 30 years for males and greater than 50 years for females., Cited By (since 1996):9, CODEN: FSYBA, ,
- Author
- Andrews, Burton, Coale, Cailliet, Crabtree
- Date
- 2001-01-01T00:00:00Z
- Title
- The feasibility of bomb radiocarbon analysis to support an age-at-length relationship for red abalone, Haliotis rufescens swainson in northern California,
- Description
- Cited By (since 1996):2, Downloaded from: www.bioone.org/doi/pdf/10.2983/0730-8000-27.5.1177 (3 July 2014)., , , ,
- Author
- Leaf, Andrews, Cailliet, Brown
- Date
- 2008-01-01T00:00:00Z
- Title
- Summary of the Meetings
- Description
- THE 95th annual meeting of the American Society of Ichthyologists and Herpetologists (ASIH) was held at the Grand Sierra Resort, Reno, Nevada from 15−19 July 2015 in conjunction with the 31st annual meeting of the American Elasmobranch Society (AES), the 73rd annual meeting of the Herpetologists’ League (HL), and the annual meeting of the Neotropical Ichthyological Association. A total of 737 attendees were in Reno (360 Professionals, 337 Students, 17 Volunteers, 7 High School Students, 3 PARC Workshop Attendees, 15 Accompanying Persons, and 22 representatives for Exhibitors). Twenty-two nations were listed for our attendees (Australia, Brazil, Canada, China, France, Germany, India, Ireland, Japan, Korea, Laos, Mexico, Panama, Saudi Arabia, Spain, Switzerland, Taiwan, Thailand, United Kingdom, United States, and Uruguay). The students accounted for nearly half of the attendees, and the international flavor of our meetings is a highlight of the JMIH meeting.
- Author
- Boback, Shaffer, Cailliet
- Title
- Age, growth, and reproduction of the Pacific angel shark, (Squatina californica) from Santa Barbara, California (Abstract),
- Description
- , , ,
- Author
- Natanson, Cailliet, Welden
- Date
- 1984-01-01T00:00:00Z
- Title
- Age estimation and lead-radium dating of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea,
- Description
- Cited By (since 1996):5, , , ,
- Author
- Brooks, Andrews, Ashford, Ramanna, Jones, Lundstrom, Cailliet
- Date
- 2011-01-01T00:00:00Z
- Title
- Radiometric validation of age, growth, and longevity for the blackgill rockfish (Sebastes melanostomus),
- Description
- As nearshore fish populations decline, many commercial fishermen have shifted fishing effort to deeper continental slope habitats to target fishes for which biological information is limited. One such fishery that developed in the northeastern Pacific Ocean in the early 1980s was for the blackgill rockfish (Sebastes melanostomus), a deep-dwelling (300-800 m) species that congregates over rocky pinnacles, mainly from southern California to southern Oregon. Growth zone-derived age estimates from otolith thin sections were compared to ages obtained from the radioactive disequilibria of 210Pb, in relation to its parent, 226Ra, in otolith cores of blackgill rockfish. Age estimates were validated up to 41 years, and a strong pattern of agreement supported a longevity exceeding 90 years. Age and length data fitted to the von Bertalanffy growth function indicated that blackgill rockfish are slow-growing (& = 0.040 females, 0.068 males) and that females grow slower than males, but reach a greater length. Age at 50% maturity, derived from previously published length-atmaturity estimates, was 17 years for males and 21 years for females. The results of this study agree with general life history traits already recognized for many Sebastes species, such as long life, slow growth, and late age at maturation. These traits may undermine the sustainability of blackgill rockfish populations when heavy fishing pressure, such as that which occurred in the 1980s, is applied., Cited By (since 1996):13, CODEN: FSYBA, ,
- Author
- Stevens, Andrews, Cailliet, Coale, Lundstrom
- Date
- 2004-01-01T00:00:00Z
- Title
- The study of feeding habits of two marine fishes in relation to plankton ecology,
- Description
- , Downloaded from: http://www.jstor.org/stable/3224869 (7 July 2014)., ,
- Author
- Cailliet
- Date
- 1972-01-01T00:00:00Z
- Title
- Age and growth of the pacific grenadier (Coryphaenoides acrolepis) with age estimate validation using an improved radiometric ageing technique,
- Description
- Current and historic longevity estimates for the Pacific grenadier (Coryphaenoides acrolepis) range from 6 to greater than 60 years. Age estimates in this study using growth increment counts in thin otolith sections indicate the Pacific grenadier is a long-lived fish. To validate this growth information, age was determined using the radioactive disequilibria of 210Pb and 226Ra in otolith cores from adult Pacific grenadier. Radiometric ages closely agreed with age estimates from counting growth increments, which confirms their annual periodicity. Radiometric results indicate the Pacific grenadier can live at least 55.8 years (-7.4, +10.1 years). Growth increment counts from large fish indicate longevity may approach 73 years. Because the Pacific grenadier is long-lived and matures late in life, it may be vulnerable to heavy fishing pressure. Therefore, conservation measures need to be taken to sustain this rapidly developing fishery., Cited By (since 1996):39, Fish and Fisheries, CODEN: CJFSD, ,
- Author
- Andrews, Cailliet, Coale
- Date
- 1999-01-01T00:00:00Z
- Title
- Application of an ion-exchange separation technique and thermal ionization mass spectrometry to 226Ra for radiometric age determination of long-lived fishes,
- Description
- Cited By (since 1996):31, , , ,
- Author
- Andrews, Coale, Nowicki, Lundstrom, Palacz, Burton, Cailliet
- Date
- 1999-01-01T00:00:00Z
- Title
- Rocks and fishes: submersible observations in a submarine canyon
- Author
- Yoklavich, Cailliet, Moreno
- Date
- 1993-01-01T00:00:00Z
- Title
- Comment on Mollet and Cailliet (2002): Confronting models with data,
- Description
- Cited By (since 1996):1, CODEN: AJMFA, , ,
- Author
- Miller, Frisk, Fogarty, Mollet, Cailliet
- Date
- 2003-01-01T00:00:00Z
- Title
- Fish faunal and habitat analyses using trawls, camera sleds and submersibles in benthic deep-sea habitats off central California,
- Description
- Beam trawl, camera sled and submersible data from 2 000-3 300 m off central California produced similar fish faunal composition, but different density estimates. All species caught in trawls were observed in camera-sled and submersible observations. However, some rare species that were observed were not caught in trawls. The fish fauna was dominated by the families Macrouridae, Zoarcidae, Moridae, and Rajidae. Fishes both trawled and observed were the macrourids Coryphaenoides armatus, C. filifer and C. leptolepis; the zoarcids Bothrocara spp., Pachycara lepinium and Lycenchelys spp.; the morid Antimora microlepis; the rajid Bathyraja trachura, the ophidiid Spectrunculus grandis, and the liparidid Careproctus ovigerum. One unidentified liparidid (Paraliparis sp.) and two unidentified Lycenchelys spp. were trawled and may have been seen but also could not be identified to species from photographs. Observed only in photographs were the liparidids Paraliparis rosaceus and Careproctus melanurus, synodontid Bathysaurus mollis, and notocanthid Notacanthus chemnitzii. These three techniques differed in their ability to provide specimens for accurate identification, counts, and later life history (feeding habit, age and growth, and reproduction) studies, and to provide information on dispersion, habitat utilization, behavior and interactions. Accurate density estimates were undoubtedly hampered by trawl and camera sled avoidance, escape, and uncertainties concerning the area trawled. Camera sleds produced higher (and perhaps better) estimates of density. Submersible observations from the DSV Alvin produced a similar species list but little additional, quantitative information. Both visual techniques allowed habitat characterization, but no strong faunal associations with habitat types were observed., Cited By (since 1996):29, CODEN: OCACD, ,
- Author
- Cailliet, Andrews, Wakefield, Moreno, Rhodes
- Date
- 1999-01-01T00:00:00Z
- Title
- Seasonal and spatial patterns of ichthyoplankton abundance in Elkhorn Slough, California,
- Description
- Seasonal and spatial patterns in abundance of fish eggs and larvae are described from 323 samples collected from September 1974-September 1976 in Elkhorn Slough, a shallow, tidal embayment in Monterey Bay, California. These included 3645 larvae of 29 taxa that were numerically co-dominated by gobiid and clupeoid larvae. Ninety-four percent of the total catch comprised seven species, and included, in rank order abundance, Gillichthys mirabilis, Engraulis mordax, Clevelandia ios, Hypomesus pretiosus-osmerid, Leptocottus armatus, Genyonemus lineatus, and Clupea pallasii. Eggs of E. mordax, Citharichthys spp., and G. lineatus accounted for 73% of the catch. Two seasonal groups of larvae were evident. E. mordax and the gobiids (G. mirabilis and C. ios) formed a summer-fall group. While more speciose, a winter and early-spring group comprised of larval L. armatus, H. pretiosus-osmerid, Atherinidae and Ammodytes hexapterus was not as abundant as the summer-fall assemblage. Egg densities were overwhelmingly high in summer, due almost entirely to E. mordax. Similarity in species composition was greatest between collections from the most inland stations; larval assemblages from near-ocean stations were least similar to the inland slough assemblages. These distributions are attributed to reproductive specializations (egg type and spawning origin of adults) and hydrographic conditions. © 1992 Academic Press Limited., Cited By (since 1996):15, CODEN: ECSSD, ,
- Author
- Yoklavich, Stevenson, Cailliet
- Date
- 1992-01-01T00:00:00Z
- Title
- Radiometric age validation of Atlantic tarpon, Megalops atlanticus,
- Description
- Cited By (since 1996):10, , , ,
- Author
- Andrews, Burton, Coale, Cailliet, Crabtree
- Date
- 2001-01-01T00:00:00Z
- Title
- Age validation of quillback rockfish (Sebastes maliger) using bomb radiocarbon,
- Description
- Rockfishes (Sebastes spp.) support one of the most economically important fisheries of the Pacific Northwest and it is essential for sustainable management that age estimation procedures be validated for these species. Atmospheric testing of thermonuclear devices during the 1950s and 1960s created a global radiocarbon (14C) signal in the ocean environment that scientists have identified as a useful tracer and chronological marker in natural systems. In this study, we first demonstrated that fewer samples are necessary for age validation using the bomb-generated 14C signal by emphasizing the utility of the time-specific marker created by the initial rise of bomb-14C. Second, the bomb-generated 14C signal retained in fish otoliths was used to validate the age and age estimation method of the quillback rockfish (Sebastes maliger) in the waters of southeast Alaska. Radiocarbon values from the first year's growth of quillback rockfish otoliths were plotted against estimated birth year to produce a 14C time series spanning 1950 to 1985. The initial rise in bomb-14C from prebomb levels (∼ -90‰) occurred in 1959 [±1 year] and 14C levels rose relatively rapidly to peak Δ14C values in 1967 (+105.4‰) and subsequently declined through the end of the time series in 1985 (+15.4‰). The agreement between the year of initial rise of 14C levels from the quillback rockfish time series and the chronology determined for the waters of southeast Alaska from yelloweye rockfish (S. ruberrimus) otoliths validated the aging method for the quillback rockfish. The concordance of the entire quillback rockfish 14C time series with the yelloweye rockfish time series demonstrated the effectiveness of this age validation technique, confirmed the longevity of the quillback rockfish up to a minimum of 43 years, and strongly confirms higher age estimates of up to 90 years., Cited By (since 1996):22, Fish and Fisheries, CODEN: FSYBA, ,
- Author
- Kerr, Andrews, Munk, Coale, Frantz, Cailliet, Brown
- Date
- 2005-01-01T00:00:00Z