Spring feeding of Atlantic wolffish (Anarhichas lupus) on Stellwagen Bank, Massachusetts

Fairchild, Elizabeth A.; Tallack, Shelly M. L.; Elzey, Scott P.; Armstrong, Michael P.

doi:10.7755/fb.113.2.7

Cited by 7 publications

(14 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Fairchild et al. (2015) collected slightly older fish (33 years) but due to gear selectivity captured no fish younger than age 7. In other reports, Atlantic Wolffish were not aged older than 22 years (von Beese and Kändler 1969 [eastern North Atlantic]; Jónsson 1982 [Iceland]; Nelson and Ross 1992 [Gulf of Maine]; Liao and Lucas 2000 [North Sea]; and Gunnarsson et al.…”

Section: Discussionmentioning

confidence: 99%

A Life History Study of Atlantic Wolffish Resolves Bias and Imprecision in Length‐ and Age‐at‐Maturity Schedules by Recognizing Abortive Maturation

et al. 2022

View full text Add to dashboard Cite

Stock assessments of U.S. Atlantic Wolffish Anarhichas lupus are hampered by a landings moratorium and low catches in fishery-independent surveys. Working with the commercial fishing industry, we collected hundreds of fish to overcome a lack of regionally specific life history information. Based on ages from sectioned otoliths, Atlantic Wolffish are long lived (maximum observed age: males = 31 years, females = 29 years). A Gompertz growth model showed that Atlantic Wolffish exhibit dimorphic growth-with larger males across all ages on average. Preliminary estimates of total mortality ranged from 0.15 to 0.21 and were lower than an estimate measured at the beginning of the moratorium. Based on gonad histology, a cohort of vitellogenic oocytes emerged in mature females by April and developed group synchronously to ovulate primarily in October. Skip spawning, which accounts for nonannual spawning, was

show abstract

Section: Discussionmentioning

confidence: 99%

A Life History Study of Atlantic Wolffish Resolves Bias and Imprecision in Length‐ and Age‐at‐Maturity Schedules by Recognizing Abortive Maturation

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Another possibility is that these areas may have been communal feeding grounds as has been observed for A. lupus in waters off of Massachusetts, USA (Fairchild, Tallack, Elzey, & Armstrong, 2015).…”

Section: Biology and Life Historymentioning

confidence: 96%

The status of spotted wolffish, Anarhichas minor: A commercially ready species for U.S. marine aquaculture?

François

Fairchild

Nardi

et al. 2021

J World Aquaculture Soc

Self Cite

View full text Add to dashboard Cite

The requirements to rear spotted wolffish, Anarhichas minor, a cold water, demersal fish, native to the north Atlantic Ocean, have been developed over the past 25 years (since 1990s) and it now is commercially produced in one fish farm in Norway with additional plans for commercial development in the near future in Quebec, Canada. Spotted wolffish have numerous attributes that make them a desirable species to culture in the United States including, but not limited to: having a high value; desired by consumers and chefs; not supplied by U.S. or Canadian fisheries; an established broodstock available in neighboring Quebec; well-developed hatchlings that do not require live feed; high rearing density tolerance; and low disease susceptibility.Here, we review the advancements made in broodstock management and spawning, egg incubation, juvenile rearing, and on-growing of fish, as well as future research and development needs. Areas requiring further focus include reducing variability in gamete production; nutritional studies at all life stages; health expertise; genetic selection; and further refinement of standard operating procedures at the commercial level for all life-stages. Given the state of advancement of wolffish cultivation and the existence of a

show abstract

“…This species is a stenothermal species reported at temperatures from −1 to 7 • C that inhabits stony but also sandy and muddy demersal areas [2,5]. In the wild, the wolffish migrate to colder and deeper waters during the spawning season [9,10] which occurs mostly between July and August [11]. Studies in the closely related Atlantic wolffish, also called common wolffish, Anarhichas lupus, indicate this species is solitary in the wild, except during the spawning season when monogamous pairs are formed [12,13] and return to their spawning grounds [14].…”

Section: Spotted Wolffish Reproductionmentioning

confidence: 99%

“…With their powerful jaw and palatine and protruding teeth, wolffish break the shells of sea urchins, crustaceans, various kinds of shellfish, and gastropods. Occasionally, other fish species were observed in stomach contents [10,65]. Nonetheless, they seem to be mostly opportunistic with the stomach contents varying between regions and seasons [66,67].…”

Section: Nutritionmentioning

confidence: 99%

See 1 more Smart Citation

Spotted Wolffish Broodstock Management and Egg Production: Retrospective, Current Status, and Research Priorities

François

Beirão

Superio

et al. 2021

Animals

View full text Add to dashboard Cite

The first artificially fertilized spotted wolffish (Anarhichas minor) eggs hatched in Norway in the mid-1990s as this species was considered by Norwegian authorities to be a top candidate species for cold-water aquaculture in the North Atlantic regions. Previous research conducted in Norway (since 1992) and Canada (since 2000), focused on identifying key biological parameters for spotted wolffish cultivation which led, respectively, to the rapid establishment of a full commercial production line in northern Norway, while Québec (Canada) is witnessing its first privately driven initiative to establish commercial production of spotted wolffish on its territory. The control of reproduction can be viewed as a major requirement to achieve the development of performant strains using genetic selection tools and/or all-year-round production to bring about maximal productivity and synchronization among a given captive population. Although the basic reproduction aspects are more understood and controlled there are still some challenges remaining involving broodstock and upscaling of operations that limit the achievement of a standardized production at the commercial level. Quality of gametes is still considered a major constraint and it can be affected by multiple factors including nutrition, environmental conditions, handling practices, and welfare status. Internal insemination/fertilization and the protracted incubation period are challenging as well as the establishment of a health monitoring program to secure large-scale operations. The profound progress achieved in the control of reproduction, sperm handling, and cryopreservation methods for this species is presented and discussed. In this review, we also go into detail over the full range of up-to-date cultivation practices involving broodstock and identify areas that could benefit from additional research efforts (i.e., broodstock nutrition, health and welfare, scaling-up egg and larval production, genetics, and development of selective breeding programs).

show abstract

Spring feeding of Atlantic wolffish (Anarhichas lupus) on Stellwagen Bank, Massachusetts

Cited by 7 publications

References 5 publications

A Life History Study of Atlantic Wolffish Resolves Bias and Imprecision in Length‐ and Age‐at‐Maturity Schedules by Recognizing Abortive Maturation

A Life History Study of Atlantic Wolffish Resolves Bias and Imprecision in Length‐ and Age‐at‐Maturity Schedules by Recognizing Abortive Maturation

The status of spotted wolffish, Anarhichas minor: A commercially ready species for U.S. marine aquaculture?

Spotted Wolffish Broodstock Management and Egg Production: Retrospective, Current Status, and Research Priorities

Contact Info

Product

Resources

About