Growth, diet and metabolism of common wolf–fish in the North Sea, a fast–growing population

Liao, Yih-Yia; Lucas, Martyn C.

doi:10.1111/j.1095-8649.2000.tb00874.x

Cited by 17 publications

(14 citation statements)

References 44 publications

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“…Metabolic rate has been shown to increase in A . lupus with increasing temperature (Liao & Lucas, ) and life span generally decreases with increasing metabolic rate among ectotherms (Munch & Salinas, ). Perhaps in 2003, the temperature or metabolic rate reached some limit that triggered early maturation, which could be beneficial, considering the slower growth, lesser life span expectancy and fecundity gain (Kozlowski & Wiegert, ; Stearns, ).…”

Section: Discussionmentioning

confidence: 99%

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Atlantic wolf‐fish Anarhichas lupus population diversity: growth and maturation

Gunnarsson¹

2014

Journal of Fish Biology

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Biological data from 1125 female Atlantic wolf-fish Anarhichas lupus were collected during 2002-2006 at their main spawning and fishing grounds in Iceland. The results demonstrated substantial annual variation in growth and maturity of female A. lupus. The fast growing females mature earlier than the slow growing ones. In addition, females mature at a larger size and greater age in warmer temperatures than colder ones. There was a strong negative relationship between temperature and growth, which may indicate that the sea temperature west of Iceland has risen above the optimum for growth of female A. lupus and thereby reduced the reproductive potential of the species.

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Section: Discussionmentioning

confidence: 99%

“…Studies on growth from geographical areas with different temperatures indicate that the growth rate of A . lupus increases with higher temperature (Barsukov, ; Jónsson, ; Nelson & Ross, ; Pavlov & Novikov, ; Liao & Lucas, ; Gunnarsson et al , ; T. K. Hansen, unpubl. data).…”

Section: Introductionmentioning

confidence: 99%

Atlantic wolf‐fish Anarhichas lupus population diversity: growth and maturation

Gunnarsson¹

2014

Journal of Fish Biology

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“…In the common wolffish Anarhichas lupus L., growth has been studied in Iceland (Jónsson, 1982), the White Sea (Barsukov, 1959; Pavlov & Novikov, 1993), north Norway (Hansen, 1992), Skagerak (Gjøsæter et al ., 1990), the North Sea (Liao Lucas, 2000) and Canada (Nelson & Ross, 1992). These studies suggested that the growth rate of common wolffish increased with higher temperature.…”

Section: Introductionmentioning

confidence: 99%

Growth, maturity and fecundity of wolffish Anarhichas lupus L. in Icelandic waters

Gunnarsson

Hjörleifsson²,

Thórarinsson

et al. 2006

Journal of Fish Biology

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Fecundity, maturity and the relationship between growth and maturity of common wolffish Anarhichas lupus were studied in Icelandic waters. A total of 788 female common wolffish were sampled in two areas: one in the relatively warm sea west of Iceland and the other in the colder sea east of Iceland. No difference was detected in fecundity of common wolffish between areas. The time from the onset of the cortical alveolus stage until spawning, was on average, 10 years in the east and 8 years in the west area. Common wolffish in the east area reached cortical alveolus stage, on average, at a greater age but similar size compared to common wolffish in the west area. Similarly, common wolffish started spawning, on average, at greater age and larger size in the east than in the west area. Common wolffish grew faster in the west than in the east area. Spawning common wolffish grew faster than common wolffish at the cortical alveolus stage in both areas. The relationship between growth and maturity for common wolffish in Icelandic waters appeared to be related to temperature, characterized by fast growth and early maturation in the west and slower growth and delayed maturation in the east.

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“…Newfoundland waters, Atlantic Wolffish are found between -1 and 10° C, and offshore trawl catch 73 biomass peaks within the narrow 1-4° C range (Kulka et al 2004). Dive surveys in the St. Lawrence 74 estuary found that resident wolffish were vertically limited by the thermocline associated with the Gaspé 75 current (Larocque et al 2008) and research in the North Sea also indicates that distribution of wolffish is 76 related to temperature (Liao and Lucas 2000). Temperature is particularly important to early life stages.…”

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confidence: 99%

High-resolution seafloor mapping to describe coastal denning habitat of a Canadian species at risk: Atlantic wolffish (Anarhichas lupus)

Novaczek

Devillers

Edinger

et al. 2017

Can. J. Fish. Aquat. Sci.

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1The Atlantic Wolffish (Anarhichas lupus) is listed by Canada's Species at Risk Act as a species of special 2 concern. Effective conservation strategies rely on accurate knowledge of habitat requirements, 3 distribution, and vulnerabilities; however, current management plans cite lack of wolffish habitat data as a 4 key limitation. For this study, coastal Atlantic Wolffish denning habitat was characterized and mapped 5 with high resolution multibeam data and seafloor video in Conception Bay, Newfoundland. Four Atlantic 6 Wolffish dens, used for feeding, spawning and egg-guarding, were surveyed and mapped. Based on the 7 geomorphology and substrate of these dens, a supervised classification was applied to the multibeam 8 bathymetry and backscatter data to identify other potential denning areas. Predicted denning habitat, 9 limited by the occurrence of suitable rocky substrate, is most prevalent in shallow waters (<22m) 10 distributed over 1.6km 2 (5.9%) of the study area. Shallow denning habitat is exposed to seasonal 11 maximum temperatures that exceed the threshold for normal Atlantic Wolffish egg development, a 12 potential vulnerability for nearshore wolffish. As management efforts progress, this information will 13 guide research and prioritization of conservation areas.

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Growth, diet and metabolism of common wolf–fish in the North Sea, a fast–growing population

Cited by 17 publications

References 44 publications

Atlantic wolf‐fish Anarhichas lupus population diversity: growth and maturation

Atlantic wolf‐fish Anarhichas lupus population diversity: growth and maturation

Growth, maturity and fecundity of wolffish Anarhichas lupus L. in Icelandic waters

High-resolution seafloor mapping to describe coastal denning habitat of a Canadian species at risk: Atlantic wolffish (Anarhichas lupus)

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