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Black Sea Bass Grouper

author
Elaine Sutton
• Friday, 09 October, 2020
• 7 min read

Scientific classification Kingdom: Animalia Phylum: Chordata Class: Actinopterygii Order: Performed Family: Serranidae Subfamily: Serraninae Genus: Centropristis Species: Binomial name Centropristis striata Synonyms Labrum stratus Linnaeus, 1758 Percy Arabia Linnaeus, 1766 Percy survey Album, 1792 Coryphée digresses Bloch & Schneider, 1801 Percy Maria Mitchell, 1814 Centropristis Melania Ginsburg, 1952 The blackseabass (Centropristis striata) is a species of marine ray-finned fish, a sea bass from the subfamilySerraninae which is part of the familySerranidae, which also includes the groupers and antics.

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Contents

It is found in the western Atlantic Ocean where it is an important species for commercial and recreational fisheries. The properly has fine serrations on its margin and is evenly rounded, while the gill cover bears three flat spines.

The membranes between the spines of the dorsal fin are deeply notched. The caudal fin has three lobes created by the long and pointed upper, middle and lower rays.

The color pattern is normally smoky gray, dusky brown or blue- black on the back and upper body fading towards the underside. In the middle of each scale there is an is pale blue to white spot and these form longitudinal stripes along the back and flanks.

The dorsal fin has a series of white spots and bands along its length. The flanks can frequently appear mottled or have dark and light vertical barring.

In the breeding season the males develop bright fluorescent blue and green around the eyes and nape and a hump on the head contrasting with the paler and duller females which are brownish or blueberry in color. This species attains a maximum total length of 66 centimeters (26 in), however they are ore normally found at a total length of around 30 centimeters (12 in), and a maximum published weight of 4.1 kilograms (9.0 lb).

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The blackseabass is commonly found in the vicinity rock jetties and over rocky substrates in shallow water, although they have also been recorded in deeper, offshore waters to depths of 130 meters (430 ft). Normally the dorsal fin is folded down but will be raised and spread out as an aggressive signal to other members of its own species.

The juveniles remain in the protected estuaries waters where they are found around man-made structures, wrecks and over shell substrates. This species is a slow growing fish, and they reach sexual maturity at between one and three years old.

They are protogynous hermaphrodites, the majority of them begin life as females and then change to males. The larvae are pelagic until they grow to around 13 millimeters (0.51 in) in length when they change to a reversal or estuaries habit.

They are a predatory species with a rather catholic diet which includes crabs, shrimps, barnacles, worms, truncates, small fish and bivalves. They are also preyed on by larger fish and their known predators include monkish (Loftus Americans), spotted hake (Prophecies Regina), summer flounder (Paralichthys status), striped bass (Moroni laxatives), bluefish (Potatoes aviatrix), weakfish (Cynoscion regalia), little skate (Leucoraja echinacea), spiny dogfish (Squalls acanthus), big nose shark (Carcharhinus animus) and dusky shark (Carcharhinus obscures).

Blackseabass are highly sought after by recreational and commercial fisherman, There are two populations identified for fisheries management. Management includes catch limits, permits and a close season.

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This species has lean, white flesh which has a relatively firm texture, breaks into small flakes and has a delicate flavor. Their are caught using otter trawls, hook and line and in pots or traps.

Black sea bass at Gray's Reef National Marine Sanctuary in Georgia Shore fishes of the Greater Caribbean online information system.

With a position at or near the top of the food chain, it provides the balance required for an optimum marine environment. Prior to the 1950s, this species of bony fish was very common to the near shore waters of Southern California.

Back as far as the late 1970s, the California Department of Fish and Game made it illegal to spearfish these giants. It is estimated that the Giant Black Sea Bass is capable of growing to lengths of over 7 feet and weighing over 700 pounds.

As implied by its alternative name of giant sea bass, the most dramatic feature of this fish is its conspicuous size, capable of growing over 700 pounds! The bulky, robust fish has a large mouth, small teeth and a distinctive single, strongly-notched dorsal fin (4).

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These color changes are thought to act as a form of communication between individuals or to be an indication of stress. “PIER sponsored research from 2000 to 2005 focused on documenting the movements of giant sea bass around the northern Channel Islands.

Data on the seasonal movement patterns, spatial distribution, feeding habitats and potential spawning aggregation locations have been compiled and are awaiting publication. Habitat Adult giant sea bass seem to prefer the edges of near shore rocky reefs (35 to 120 feet) and are often associated with kelp beds.

At certain times of the year adults can be found well away from the reef, foraging over sandy bottom and routinely associated with spawning squid. Feeding “The most important prey items of the giant (black) sea bass ’, based upon research by PIER, 4 “are sting rays, skates, lobster, crabs, various flatfish, small sharks, mantis shrimp, blacksmith, ocean whitefish, red crab, cargo, sheep head, octopus, squid and an occasional kelp bass or barred sand bass.

Windscreen Arrive National Marine Sanctuary Fishcake Leger Institute of Environment Research California Department of Fish and Wildlife Animal Diversity Web IUCN Red List of Threatened Species Visit our keyboard shortcuts docs for details Duration: 58 minutes, 28 seconds In one of the first studies of its kind, university researchers Ana Sofia Guerra and Francis Joyce are identifying the movement of individual giant sea bass using new computer imaging technology, paired with photographs taken by recreational divers.

They also have teeth plates inside their throat that prevent prey from escaping after being swallowed. Species Habitat Black grouper are found in the western Atlantic Ocean with ranges extending from Massachusetts to Brazil.

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Occurrences of the species north of Carolina's are considered to be rare and most likely due to larval transport in the Gulf Stream rather than migration. Juveniles can occur in seagrass and oyster rubble habitat in the Carolina's, and along reefs in the Florida Keys and in Brazil.

Adults prefer rocky bottoms, drop-off walls and ledges, caves, crevices, and coral and artificial reefs. While they are relatively sedentary and can remain in one particular site for some time, black grouper move to progressively deeper waters as they age.

They used passive acoustic recorders to monitor sound production indicative of spawning habitat use by groupers at Riley’s Hump in the Tortuga's South Ecological Reserve in Florida, the first known US spawning site for black grouper. This study illustrated the importance of the Tortuga's South Ecological Reserve and called for continued research in order to understand its role in the recovery and sustainability of managed fish populations.

Because of the vulnerability to overfishing associated with large aggregations and the biodiversity therein, it is important to consider spawning locations in the establishment of marine protected areas and seasonal closures. The plan and its amendments include numerous measures to rebuild current populations.

Limiting the number of available permits (both transferable and nontransferable) available to commercial fishers; Establishing annual catch limits for both commercial and recreational fishers; Establishing overall species quotas; Commercial and recreational size limits to reduce harvest of immature grouper ; Seasonal closures to protect spawning aggregations; Gear restrictions to protect habitat and reduce by catch; and, Eight deep-water marine protected areas closed to fishing and possession of snapper and grouper. Established in 1984, the Reef Fish FMP and its amendments were designed to end historic overfishing for shallow water groupers and to rebuild populations.

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Establishes and allocates annual species-specific catch limits between commercial and recreational fishers for groupers and tile fish; Sets gear restrictions; Sets minimum size restrictions to protect immature grouper ; and, Establishes year round and seasonal area closures for both commercial and recreational fishers to protect spawning stock and essential fish habitat. The If program allocates shares of the total commercial catch limit amongst individual fishers.

Under the program, each fisher owns a share of the quota and can choose to fish it at anytime during the open season. Strict commercial reporting requirements prevent fishers from harvesting more than their individual allocation.

Red and black grouper are among the most important species caught in Mexico in terms of volume and economic value. Most grouper, particularly those caught in the Mexican industrial bottom longline fishery, is imported to the US.

Numerous entities are involved to some degree with creating, implementing, and enforcing fishery management strategies in Mexico. Under SAGA RPA, the National Aquaculture and Fishing Commission (Coalesce) is charged with developing and carrying out fisheries management regulations.

Wild Black grouper are found in the Atlantic from Massachusetts to Brazil, including the Gulf of Mexico. Unlike red grouper, black grouper in the United States is considered to be one stock across both the South Atlantic and Gulf of Mexico regions.

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Grouper in generally are fairly long-lived and come together to spawn in large numbers, characteristics that make them vulnerable to fishing pressure. A May 2014 Seafood Watch report stated that according to the most recent stock assessment in 2010, black grouper is not considered overfished.

Grouper fisheries have high impacts on nontarget species, the Monterey Bay Aquarium reported. Venting tools are also employed to make it easier for reef fish to survive when released.

Management measures include permits, annual catch limits, fishing quotas, marine protected areas that are closed to fishing, seasonal closures, gear restrictions, minimum size limits, and data reporting requirements.

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Sources
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3 georgepoveromo.com - https://georgepoveromo.com/article-2009_three_basic_bottom_rigs.html
4 www.ebay.com - https://www.ebay.com/itm/Buccaneer-B92028-Grouper-Pro-Rigs-with-Circle-Hook-8-0-8-oz-/274608777797
5 www.mynameisfish.com - https://www.mynameisfish.com/2015/01/fishing-rig-for-grouper-knots-hooks-and.html
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7 www.get-involved.us - http://www.get-involved.us/grouperdigger/rigging.html