Biological Characteristics of the Glacier Lantern Fish Benthosema glaciale (Myctophidae) in Icelandic Waters and the Irminger Sea During Summer DOI Creative Commons
C. Matthews, James Kennedy, Anna Heiða Ólafsdóttir

et al.

Ecology and Evolution, Journal Year: 2024, Volume and Issue: 14(10)

Published: Oct. 1, 2024

ABSTRACT Myctophids are one of the most diverse and abundant fish families in mesopelagic zone, making them a key component marine pelagic community. In North Atlantic, Benthosema glaciale (glacier lantern fish) is considered myctophid north 35° N, yet some regions within its extensive range lack information on basic biological parameters. We investigated growth described distribution B. Icelandic waters, including southern continental shelf, Iceland Basin, Irminger Sea. Length distribution, growth, relative body condition, age, otolith‐fish size relationships were analyzed from samples collected opportunistically with trawls during International Ecosystem Summer Survey Nordic Seas (IESSNS) July 2020. total, 1374 individuals caught, only subset 225 measured fresh at sea 89 frozen dissected land. Total lengths ranged 38 to 85 mm, while 40 74 mm 2 6 years old. Located over Reykjanes Ridge Basin region, had significantly higher mean standard length lower condition. reported length–weight for both samples, indicating evidence that preserving specimens through freezing affected relationships. The von Bertalanffy curve was calculated along significant where r values between 0.87 0.92. Our research highlights importance cross‐regional studies provides baseline biology specifically slope Ridge.

Language: Английский

Biological, economic and social viability of a mesopelagic fishery in the Bay of Biscay DOI
Dorleta García,

Marga Andrés,

Iosu Paradinas

et al.

Fisheries Research, Journal Year: 2025, Volume and Issue: 285, P. 107348 - 107348

Published: April 11, 2025

Language: Английский

Citations

0
Assessing the potential economic effects of mesopelagic fisheries as a novel source of fishmeal DOI Open Access

Rohan Gowda Thanh Quang,

Melina Kourantidou, Di Jin

et al.

Natural Resource Modeling, Journal Year: 2024, Volume and Issue: 37(3)

Published: April 26, 2024

Abstract The continuous growth of the aquaculture industry implies increased demand for efficient sources aquafeed, such as fishmeal. Pelagic fish are a desirable source fishmeal due to their high nutritional content. Nevertheless, several pelagic stocks that have been exploited extensively production face ecological limits commercial exploitation, and is now seeking novel, efficient, sustainable aquafeed. mesopelagic zone, an ecosystem with many scientific uncertainties, being considered potential fishmeal, largely owing abundance robust profile. However, both economic viability exploitation not yet well understood. To understand conditions would make endeavor economically viable in context global systems, we use bioeconomic model assesses consequences including source. Through simulations, assess implications this hypothetical fishery on major systems. can be profitable harvesters, its addition reduces market price, thus making it more accessible farmers less fishers. While may reduce fishing pressure forage‐fish stocks, key services remain concern.

Language: Английский

Citations

3
Mesopelagic Fish Traits: Functions and Trade‐Offs DOI Creative Commons
Henrike Andresen, Leandro Nolé Eduardo, M. Pilar Olivar

et al.

Fish and Fisheries, Journal Year: 2024, Volume and Issue: 26(1), P. 83 - 103

Published: Nov. 1, 2024

ABSTRACT Fishes inhabiting the mesopelagic zone of world's oceans are estimated to account for majority fish biomass. They have recently attracted new attention because they part biological carbon pump and been reconsidered as a contribution food security. Hence, there is an urgent need understand how environmental conditions species interactions shape their assemblages, contribute functioning marine ecosystems. Trait‐based approaches valuable addressing these types questions. However, biology ecology fishes understudied compared in shallow epipelagic waters. Here, we synthesise existing knowledge traits relate them role survival, feeding growth reproduction, key functions that fitness. Vertical migrations, specialised vision use bioluminescence among most striking adaptations realm. Many interrelated result trade‐offs, which may help selection pressures. While morphological straightforward observe, major gaps exist require frequent sampling, assessment under experimental or age determination. The unique be included management strategies well fundamental research habitat.

Language: Английский

Citations

2
Climate damage from fishing the mesopelagic zone exceeds its economic benefits DOI Creative Commons
R.A. Groeneveld, Andries Richter, Suphi Şen

et al.

ICES Journal of Marine Science, Journal Year: 2024, Volume and Issue: 81(8), P. 1620 - 1631

Published: Aug. 12, 2024

Abstract Mesopelagic fish represent an opportunity for fishing companies and food production, but their exploitation carries substantial environmental risks related to these populations’ role in the oceanic carbon pump. We assess economic viability of mesopelagic from a private perspective, focusing on costs revenues accruing industry, public considering impacts society at large, notably climate change. develop stylized model, which we apply four pelagic trawling fleets European Union. find that fishery operated with current excess capacity considered is profitable potentially outweigh benefits. This implies strict governance arrangements are needed safeguard sustainability zone. Considering long-term dynamics, explore potential natural limits expanding fishery. First, growing will reduce biomass level, affecting profitability. Second, increase production may lower price, also limiting expansion. For time being, however, it unlikely reach scale level where such feedbacks can be expected, making effective even more crucial.

Language: Английский

Citations

1
Modeling fisheries and carbon sequestration ecosystem services under deep uncertainty in the ocean twilight zone DOI Creative Commons
Maartje Oostdijk, Laura G. Elsler,

Julie Van Deelen

et al.

AMBIO, Journal Year: 2024, Volume and Issue: 53(11), P. 1632 - 1648

Published: Aug. 29, 2024

Abstract Mesopelagic fishes are a vital component of the biological carbon pump and are, to date, largely unexploited. In recent years, there has been an increased interest in harvesting mesopelagic zone produce fish feed for aquaculture. However, great uncertainties exist how interacts with climate food webs, presenting dilemma policy. Here, we investigate consequences potential policies relating harvest quotas dynamic social-ecological modeling approach, combining system dynamics global sensitivity analyses informed by participatory modeling. Our reveal that, simulations fishing scenarios, about population have most pronounced influence on outcomes. The analysis also shows that prioritizing development industry over environmental protection would lead significantly higher social cost change society. Given large impacts oceanic sequestration, precautionary approach developing fisheries is warranted.

Language: Английский

Citations

1
Biological Characteristics of the Glacier Lantern Fish Benthosema glaciale (Myctophidae) in Icelandic Waters and the Irminger Sea During Summer DOI Creative Commons
C. Matthews, James Kennedy, Anna Heiða Ólafsdóttir

et al.

Ecology and Evolution, Journal Year: 2024, Volume and Issue: 14(10)

Published: Oct. 1, 2024

ABSTRACT Myctophids are one of the most diverse and abundant fish families in mesopelagic zone, making them a key component marine pelagic community. In North Atlantic, Benthosema glaciale (glacier lantern fish) is considered myctophid north 35° N, yet some regions within its extensive range lack information on basic biological parameters. We investigated growth described distribution B. Icelandic waters, including southern continental shelf, Iceland Basin, Irminger Sea. Length distribution, growth, relative body condition, age, otolith‐fish size relationships were analyzed from samples collected opportunistically with trawls during International Ecosystem Summer Survey Nordic Seas (IESSNS) July 2020. total, 1374 individuals caught, only subset 225 measured fresh at sea 89 frozen dissected land. Total lengths ranged 38 to 85 mm, while 40 74 mm 2 6 years old. Located over Reykjanes Ridge Basin region, had significantly higher mean standard length lower condition. reported length–weight for both samples, indicating evidence that preserving specimens through freezing affected relationships. The von Bertalanffy curve was calculated along significant where r values between 0.87 0.92. Our research highlights importance cross‐regional studies provides baseline biology specifically slope Ridge.

Language: Английский

Citations

0