Age, Growth, And Reproduction Of The Goosefish Lophius-Americanus (Pisces, Lophiiformes)
Age, growth, and reproduction were studied in goosefish Lophius americanus collected from National Marine Fisheries Service groundfish surveys and commercial fishing cruises between Georges Bank and Cape Hatteras in the western North Atlantic. Age and growth of L. americanus were determined from ver...
Main Authors: | , , |
---|---|
Format: | Text |
Language: | unknown |
Published: |
W&M ScholarWorks
1992
|
Subjects: | |
Online Access: | https://scholarworks.wm.edu/vimsarticles/606 https://scholarworks.wm.edu/context/vimsarticles/article/1607/viewcontent/armstrong.pdf |
id |
ftwilliammarycol:oai:scholarworks.wm.edu:vimsarticles-1607 |
---|---|
record_format |
openpolar |
spelling |
ftwilliammarycol:oai:scholarworks.wm.edu:vimsarticles-1607 2024-06-23T07:55:10+00:00 Age, Growth, And Reproduction Of The Goosefish Lophius-Americanus (Pisces, Lophiiformes) Armstrong, Michael P. Musick, John Colvocoresses, James A. 1992-01-01T08:00:00Z application/pdf https://scholarworks.wm.edu/vimsarticles/606 https://scholarworks.wm.edu/context/vimsarticles/article/1607/viewcontent/armstrong.pdf unknown W&M ScholarWorks https://scholarworks.wm.edu/vimsarticles/606 https://scholarworks.wm.edu/context/vimsarticles/article/1607/viewcontent/armstrong.pdf VIMS Articles Egg Fisheries Science Peer-Reviewed Articles Aquaculture and Fisheries text 1992 ftwilliammarycol 2024-06-05T03:31:54Z Age, growth, and reproduction were studied in goosefish Lophius americanus collected from National Marine Fisheries Service groundfish surveys and commercial fishing cruises between Georges Bank and Cape Hatteras in the western North Atlantic. Age and growth of L. americanus were determined from vertebral annuli, which became visible at the edge of the vertebral centra in May. Maximum ages of males and females were 9 and 11 years, respectively. Males appeared to experience higher mortality than females in the older age-classes. Von Bertalanffy growth curves calculated for males and females had excellent agreement with back-calculated lengths. The growth rate of L. americanus was intermediate to its eastern Atlantic congeners, L. piscatorius and L. budegassa. Male L. americanus matured at 3+ years (approximately 370 mm TL) and females at 4+ years (approximately 485 mm TL). Spawning took place primarily in May and June. Fecundity in 17 individuals of 610-1048 mm TL ranged from 300,000 to 2,800,000 ova, and was linear with total length in that size range. Histological examination of the ovaries showed they are remarkably similar to ovaries of other lophiiform species. Females produced egg veils, which may function in dispersion, buoyancy, facilitating fertilization, and protection of the eggs and larvae. Text North Atlantic W&M ScholarWorks |
institution |
Open Polar |
collection |
W&M ScholarWorks |
op_collection_id |
ftwilliammarycol |
language |
unknown |
topic |
Egg Fisheries Science Peer-Reviewed Articles Aquaculture and Fisheries |
spellingShingle |
Egg Fisheries Science Peer-Reviewed Articles Aquaculture and Fisheries Armstrong, Michael P. Musick, John Colvocoresses, James A. Age, Growth, And Reproduction Of The Goosefish Lophius-Americanus (Pisces, Lophiiformes) |
topic_facet |
Egg Fisheries Science Peer-Reviewed Articles Aquaculture and Fisheries |
description |
Age, growth, and reproduction were studied in goosefish Lophius americanus collected from National Marine Fisheries Service groundfish surveys and commercial fishing cruises between Georges Bank and Cape Hatteras in the western North Atlantic. Age and growth of L. americanus were determined from vertebral annuli, which became visible at the edge of the vertebral centra in May. Maximum ages of males and females were 9 and 11 years, respectively. Males appeared to experience higher mortality than females in the older age-classes. Von Bertalanffy growth curves calculated for males and females had excellent agreement with back-calculated lengths. The growth rate of L. americanus was intermediate to its eastern Atlantic congeners, L. piscatorius and L. budegassa. Male L. americanus matured at 3+ years (approximately 370 mm TL) and females at 4+ years (approximately 485 mm TL). Spawning took place primarily in May and June. Fecundity in 17 individuals of 610-1048 mm TL ranged from 300,000 to 2,800,000 ova, and was linear with total length in that size range. Histological examination of the ovaries showed they are remarkably similar to ovaries of other lophiiform species. Females produced egg veils, which may function in dispersion, buoyancy, facilitating fertilization, and protection of the eggs and larvae. |
format |
Text |
author |
Armstrong, Michael P. Musick, John Colvocoresses, James A. |
author_facet |
Armstrong, Michael P. Musick, John Colvocoresses, James A. |
author_sort |
Armstrong, Michael P. |
title |
Age, Growth, And Reproduction Of The Goosefish Lophius-Americanus (Pisces, Lophiiformes) |
title_short |
Age, Growth, And Reproduction Of The Goosefish Lophius-Americanus (Pisces, Lophiiformes) |
title_full |
Age, Growth, And Reproduction Of The Goosefish Lophius-Americanus (Pisces, Lophiiformes) |
title_fullStr |
Age, Growth, And Reproduction Of The Goosefish Lophius-Americanus (Pisces, Lophiiformes) |
title_full_unstemmed |
Age, Growth, And Reproduction Of The Goosefish Lophius-Americanus (Pisces, Lophiiformes) |
title_sort |
age, growth, and reproduction of the goosefish lophius-americanus (pisces, lophiiformes) |
publisher |
W&M ScholarWorks |
publishDate |
1992 |
url |
https://scholarworks.wm.edu/vimsarticles/606 https://scholarworks.wm.edu/context/vimsarticles/article/1607/viewcontent/armstrong.pdf |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
VIMS Articles |
op_relation |
https://scholarworks.wm.edu/vimsarticles/606 https://scholarworks.wm.edu/context/vimsarticles/article/1607/viewcontent/armstrong.pdf |
_version_ |
1802647629298925568 |