Preliminary trials on incubation of sablefish eggs (Anoplopoma fimbria)

Alderdice, D. F.; Jensen, J.O.T.; Velsen, F. P. J.

doi:10.1016/0044-8486(88)90335-3

Cited by 21 publications

(16 citation statements)

References 14 publications

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“…If the same timing was observed in sablefish, significant male over-expression should be observed between around 15.5 d.p.f (4°C incubation) [55] and will no longer be significant 15 days post-hatching (d.p.h). As shown in Figure 5D, gsdf is overexpressed in males around hatching, although unlike our predictions, it remains overexpressed relative to the females up to 25 d.p.h.…”

Section: Resultsmentioning

confidence: 99%

Genomics of sablefish (Anoplopoma fimbria): expressed genes, mitochondrial phylogeny, linkage map and identification of a putative sex gene

et al. 2013

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BackgroundThe sablefish (order: Scorpaeniformes) is an economically important species in commercial fisheries of the North Pacific and an emerging species in aquaculture. Aside from a handful of sequences in NCBI and a few published microsatellite markers, little is known about the genetics of this species. The development of genetic tools, including polymorphic markers and a linkage map will allow for the successful development of future broodstock and mapping of phenotypes of interest. The significant sexual dimorphism between females and males makes a genetic test for early identification of sex desirable.ResultsA full mitochondrial genome is presented and the resulting phylogenetic analysis verifies the placement of the sablefish within the Scorpaeniformes. Nearly 35,000 assembled transcript sequences are used to identify genes and obtain polymorphic SNP and microsatellite markers. 360 transcribed polymorphic loci from two sablefish families produce a map of 24 linkage groups. The sex phenotype maps to sablefish LG14 of the male map. We show significant conserved synteny and conservation of gene-order between the threespine stickleback Gasterosteus aculeatus and sablefish. An additional 1843 polymorphic SNP markers are identified through next-generation sequencing techniques. Sex-specific markers and sequence insertions are identified immediately upstream of the gene gonadal-soma derived factor (gsdf), the master sex determinant locus in the medaka species Oryzias luzonensis.ConclusionsThe first genomic resources for sablefish provide a foundation for further studies. Over 35,000 transcripts are presented, and the genetic map represents, as far as we can determine, the first linkage map for a member of the Scorpaeniformes. The observed level of conserved synteny and comparative mapping will allow the use of the stickleback genome in future genetic studies on sablefish and other related fish, particularly as a guide to whole-genome assembly. The identification of sex-specific insertions immediately upstream of a known master sex determinant implicates gsdf as an excellent candidate for the master sex determinant for sablefish.

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Section: Resultsmentioning

confidence: 99%

Genomics of sablefish (Anoplopoma fimbria): expressed genes, mitochondrial phylogeny, linkage map and identification of a putative sex gene

et al. 2013

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“…Source: 1- Pepin et al (1997); 2-Chambers (1997); 3- Viljanen and Koho (1991);4-Ryzhkov (1979); 5- Hamor and Garside (1977); 6 - Huuskonen et al (2003); 7- Gruber and Wieser (1983); 8- Martell et al (2005); 9- Alderdice and Forrester (1974); 10- Alderdice and Forrester (1971a); 11- Alderdice et al (1988); 12- Alderdice and Forrester (1971b); 13- Beacham and Murray (1985); 14 - Rombough (1985); 15- Heming (1982); 16- Escaffre et al (1995);17-Rombough (1988c); 18- Kamler and Kato (1983); 19 - Witkowski et al (1997); 20- Kamler et al (1998); 21- Morgan et al (1981); 22- Hardy and Litvak (2004); 23- Kamiński et al (2006); 24- Bonisławska et al (2004);25-Quantz (1985); 26- Klimogianni et al (2004);27-Laurence (1973);28-Kamler (1976);29 -Peňáz et al (1983); 30- Kamler et al (1994); 31 - Rana (1990); 32 - Kinne and Kinne (1962) 5. I think that larval size at a given ontogenetic state within the yolk-feeding period results from interplay between the response of three vital rates to temperature: ontogenetic rate (Q 10dev , review by Kamler 2002), growth rate (Q 10gr , this work, section.…”

Section: Fish Body Size Attained On Yolkmentioning

confidence: 98%

Resource allocation in yolk-feeding fish

Kamler

2007

Rev Fish Biol Fisheries

222

175

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An insight is made into the main processes that occur in fish during endogenous feeding period. The ways in which yolk absorption rate can be measured are evaluated. Essential amino acids and polyunsaturated fatty acids are preferentially retained for incorporation into body tissue. Profound physiological and anatomical changes in yolk and a sequence of slow, fast, and a second period of slow absorption occur during the endogenous feeding period. Attempts to quantify the ontogenetic sequence are reviewed. Various methods of body size assessment are compared, and sources of bias in individual and population growth estimates are discussed. Several calorimetric methods are compared of which direct calorimetry using an oxygen bomb is the reference method. An advanced elemental analysis (CHNS) is a reliable technique that is adequate for early stages. Indices of growth potential are reviewed including a comparison of different measures, models and approaches used to estimate growth. Changes in body hydration, caloric value, content of lipids, protein, free amino acids (FAA) and minerals, and in content of RNA and DNA occur in early ontogeny. Ways to quantify metabolic rate are identified. Mean relative respiration rate of initial egg before activation is very low, about 20 mm 3 g À1 h À1 . Ontogenetic sequence in absolute metabolic rate of fish embryos and yolk-feeding larvae involves an increase through hatching to a peak at the time of first feeding ability, and a decrease under starvation. Models predicting the relationship between oxygen consumption and age in yolk-feeding fish are reviewed. Sequence of metabolic fuels begins with use of small molecules as carbohydrates, soon switched to FAA. Later lipids are progressively used, they provide energy for swimming activity. After yolk depletion body protein-bound amino acids are mobilised. In this review I focused on the major environmental variables as temperature, oxygen, salinity, pH, toxic xenobiotics, light, UV radiation, magnetic field and substrate, along with intrinsic factors as egg or body size, sex and genetic factors. A question was posed on how the extrinsic and intrinsic factors determine yolk absorption, growth and metabolic rates in yolk-feeding fish. Special attention is devoted to fish body size attained exclusively on yolk. A considerable variety of body size responses to temperature was found, for which several explanations are forwarded. Methodological progress made recently is characterised and the most conspicious advances in understanding of fish early life history are highlighted. Information derived from these studies can be used in management of fish populations in the field and to optimise activities in aquaculture.

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“…Temperature data were obtained from ROMS outputs. In most cases, we include temperature as degree days (cumulative temperature above a threshold value, Chezik et al, 2014), setting a slightly conservative threshold temperature of 3.5°C (Alderdice, Jensen, & Velsen, 1988;Sogard & Spencer, 2004).…”

Section: Hypotheses and Additional Data Sourcesmentioning

confidence: 99%

Oceanographic drivers of sablefish recruitment in the California Current

Tolimieri

Haltuch

Lee

et al. 2018

Fisheries Oceanography

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Oceanographic processes and ecological interactions can strongly influence recruitment success in marine fishes. Here, we develop an environmental index of sablefish recruitment with the goal of elucidating recruitment‐environment relationships and informing stock assessment. We start with a conceptual life‐history model for sablefish Anoplopoma fimbria on the US west coast to generate stage‐ and spatio‐temporally‐specific hypotheses regarding the oceanographic and biological variables likely influencing sablefish recruitment. Our model includes seven stages from pre‐spawn female condition through benthic recruitment (age‐0 fish) for the northern portion of the west coast U.S. sablefish stock (40°N–50°N). We then fit linear models and use model comparison to select predictors. We use residuals from the stock‐recruitment relationship in the 2015 sablefish assessment as the dependent variable (thus removing the effect of spawning stock biomass). Predictor variables were drawn primarily from ROMS model outputs for the California Current Ecosystem. We also include indices of prey and predator abundance and freshwater input. Five variables explained 57% of the variation in recruitment not accounted for by the stock‐recruitment relationship in the sablefish assessment. Recruitment deviations were positively correlated with (i) colder conditions during the spawner preconditioning period, (ii) warmer water temperatures during the egg stage, (iii) stronger cross‐shelf transport to near‐shore nursery habitats during the egg stage, (iv) stronger long‐shore transport to the north during the yolk‐sac stage, and (v) cold surface water temperatures during the larval stage. This result suggests that multiple mechanisms likely affect sablefish recruitment at different points in their life history.

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Preliminary trials on incubation of sablefish eggs (Anoplopoma fimbria)

Cited by 21 publications

References 14 publications

Genomics of sablefish (Anoplopoma fimbria): expressed genes, mitochondrial phylogeny, linkage map and identification of a putative sex gene

Genomics of sablefish (Anoplopoma fimbria): expressed genes, mitochondrial phylogeny, linkage map and identification of a putative sex gene

Resource allocation in yolk-feeding fish

Oceanographic drivers of sablefish recruitment in the California Current

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